export feature

Cargo.lock

@@ -1439,6 +1439,18 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "export"
+version = "0.1.0"
+dependencies = [
+ "async-trait",
+ "chrono",
+ "domain",
+ "serde_json",
+ "tokio",
+ "uuid",
+]
+
 [[package]]
 name = "fancy-regex"
 version = "0.11.0"
@@ -3055,6 +3067,7 @@ dependencies = [
  "domain",
  "dotenvy",
  "event-publisher",
+ "export",
  "http-body-util",
  "infer",
  "metadata",

Cargo.toml

@@ -11,6 +11,7 @@ members = [
     "crates/adapters/template-askama",
     "crates/adapters/activitypub",
     "crates/adapters/activitypub-base",
+    "crates/adapters/export",
     "crates/application",
     "crates/domain",
     "crates/presentation",
@@ -48,6 +49,7 @@ poster-fetcher = { path = "crates/adapters/poster-fetcher" }
 poster-storage = { path = "crates/adapters/poster-storage" }
 event-publisher = { path = "crates/adapters/event-publisher" }
 rss = { path = "crates/adapters/rss" }
+export = { path = "crates/adapters/export" }
 sqlite = { path = "crates/adapters/sqlite" }
 sqlite-federation = { path = "crates/adapters/sqlite-federation" }
 template-askama = { path = "crates/adapters/template-askama" }

crates/adapters/activitypub-base/src/activities.rs

@@ -1,7 +1,9 @@
 use activitypub_federation::{
     config::Data,
     fetch::object_id::ObjectId,
-    kinds::activity::{AcceptType, CreateType, DeleteType, FollowType, RejectType, UndoType, UpdateType},
+    kinds::activity::{
+        AcceptType, CreateType, DeleteType, FollowType, RejectType, UndoType, UpdateType,
+    },
     traits::Activity,
 };
 use serde::{Deserialize, Serialize};
@@ -42,10 +44,16 @@ impl Activity for FollowActivity {
         let target_domain = match (target_url.host_str(), target_url.port()) {
             (Some(host), Some(port)) => format!("{}:{}", host, port),
             (Some(host), None) => host.to_string(),
-            _ => return Err(Error::bad_request(anyhow::anyhow!("invalid follow target URL"))),
+            _ => {
+                return Err(Error::bad_request(anyhow::anyhow!(
+                    "invalid follow target URL"
+                )));
+            }
         };
         if target_domain != data.domain {
-            return Err(Error::bad_request(anyhow::anyhow!("follow target is not a local actor")));
+            return Err(Error::bad_request(anyhow::anyhow!(
+                "follow target is not a local actor"
+            )));
         }
         Ok(())
     }
@@ -105,7 +113,11 @@ impl Activity for AcceptActivity {
         let local_user_id = crate::urls::extract_user_id_from_url(self.object.actor.inner())
             .ok_or_else(|| Error::bad_request(anyhow::anyhow!("invalid actor URL in Follow")))?;
         data.federation_repo
-            .update_following_status(local_user_id, self.actor.inner().as_str(), FollowingStatus::Accepted)
+            .update_following_status(
+                local_user_id,
+                self.actor.inner().as_str(),
+                FollowingStatus::Accepted,
+            )
             .await?;
         tracing::info!(remote_actor = %self.actor.inner(), "follow accepted by remote");
         Ok(())

crates/adapters/activitypub-base/src/actor_handler.rs

@@ -3,7 +3,7 @@ use activitypub_federation::{
 };
 use axum::extract::Path;
 
-use crate::actors::{get_local_actor, Person};
+use crate::actors::{Person, get_local_actor};
 use crate::data::FederationData;
 use crate::error::Error;
 

crates/adapters/activitypub-base/src/actors.rs

@@ -63,11 +63,7 @@ pub async fn get_local_actor(
         None => {
             let kp = generate_actor_keypair()?;
             data.federation_repo
-                .save_local_actor_keypair(
+                .save_local_actor_keypair(user_id, kp.public_key.clone(), kp.private_key.clone())
-                    user_id,
-                    kp.public_key.clone(),
-                    kp.private_key.clone(),
-                )
                 .await?;
             (kp.public_key, kp.private_key)
         }
@@ -179,10 +175,7 @@ impl Object for DbActor {
         Ok(())
     }
 
-    async fn from_json(
+    async fn from_json(json: Self::Kind, data: &Data<Self::DataType>) -> Result<Self, Self::Error> {
-        json: Self::Kind,
-        data: &Data<Self::DataType>,
-    ) -> Result<Self, Self::Error> {
         let actor = RemoteActor {
             url: json.id.inner().to_string(),
             handle: json.preferred_username.clone(),

crates/adapters/activitypub-base/src/inbox.rs

@@ -1,5 +1,5 @@
 use activitypub_federation::{
-    axum::inbox::{receive_activity, ActivityData},
+    axum::inbox::{ActivityData, receive_activity},
     config::Data,
     protocol::context::WithContext,
 };
@@ -13,8 +13,6 @@ pub async fn inbox_handler(
     data: Data<FederationData>,
     activity_data: ActivityData,
 ) -> Result<(), Error> {
-    receive_activity::<WithContext<InboxActivities>, DbActor, FederationData>(
+    receive_activity::<WithContext<InboxActivities>, DbActor, FederationData>(activity_data, &data)
-        activity_data, &data,
+        .await
-    )
-    .await
 }

crates/adapters/activitypub-base/src/lib.rs

@@ -10,14 +10,16 @@ pub mod inbox;
 pub mod outbox;
 pub mod repository;
 pub mod service;
+pub(crate) mod urls;
 pub mod user;
 pub mod webfinger;
-pub(crate) mod urls;
 
 pub use content::ApObjectHandler;
 pub use data::FederationData;
 pub use error::Error;
 pub use federation::ApFederationConfig;
-pub use repository::{FederationRepository, Follower, FollowerStatus, FollowingStatus, RemoteActor};
+pub use repository::{
+    FederationRepository, Follower, FollowerStatus, FollowingStatus, RemoteActor,
+};
 pub use service::ActivityPubService;
 pub use user::{ApUser, ApUserRepository};

crates/adapters/activitypub-base/src/repository.rs

@@ -31,20 +31,61 @@ pub struct Follower {
 
 #[async_trait]
 pub trait FederationRepository: Send + Sync {
-    async fn add_follower(&self, local_user_id: uuid::Uuid, remote_actor_url: &str, status: FollowerStatus, follow_activity_id: &str) -> Result<()>;
+    async fn add_follower(
-    async fn get_follower_follow_activity_id(&self, local_user_id: uuid::Uuid, remote_actor_url: &str) -> Result<Option<String>>;
+        &self,
-    async fn remove_follower(&self, local_user_id: uuid::Uuid, remote_actor_url: &str) -> Result<()>;
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+        status: FollowerStatus,
+        follow_activity_id: &str,
+    ) -> Result<()>;
+    async fn get_follower_follow_activity_id(
+        &self,
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+    ) -> Result<Option<String>>;
+    async fn remove_follower(
+        &self,
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+    ) -> Result<()>;
     async fn get_followers(&self, local_user_id: uuid::Uuid) -> Result<Vec<Follower>>;
-    async fn update_follower_status(&self, local_user_id: uuid::Uuid, remote_actor_url: &str, status: FollowerStatus) -> Result<()>;
+    async fn update_follower_status(
-    async fn add_following(&self, local_user_id: uuid::Uuid, actor: RemoteActor, follow_activity_id: &str) -> Result<()>;
+        &self,
-    async fn get_follow_activity_id(&self, local_user_id: uuid::Uuid, remote_actor_url: &str) -> Result<Option<String>>;
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+        status: FollowerStatus,
+    ) -> Result<()>;
+    async fn add_following(
+        &self,
+        local_user_id: uuid::Uuid,
+        actor: RemoteActor,
+        follow_activity_id: &str,
+    ) -> Result<()>;
+    async fn get_follow_activity_id(
+        &self,
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+    ) -> Result<Option<String>>;
     async fn remove_following(&self, local_user_id: uuid::Uuid, actor_url: &str) -> Result<()>;
     async fn get_following(&self, local_user_id: uuid::Uuid) -> Result<Vec<RemoteActor>>;
     async fn count_following(&self, local_user_id: uuid::Uuid) -> Result<usize>;
     async fn upsert_remote_actor(&self, actor: RemoteActor) -> Result<()>;
     async fn get_remote_actor(&self, actor_url: &str) -> Result<Option<RemoteActor>>;
-    async fn get_local_actor_keypair(&self, user_id: uuid::Uuid) -> Result<Option<(String, String)>>;
+    async fn get_local_actor_keypair(
-    async fn save_local_actor_keypair(&self, user_id: uuid::Uuid, public_key: String, private_key: String) -> Result<()>;
+        &self,
+        user_id: uuid::Uuid,
+    ) -> Result<Option<(String, String)>>;
+    async fn save_local_actor_keypair(
+        &self,
+        user_id: uuid::Uuid,
+        public_key: String,
+        private_key: String,
+    ) -> Result<()>;
     async fn get_pending_followers(&self, local_user_id: uuid::Uuid) -> Result<Vec<RemoteActor>>;
-    async fn update_following_status(&self, local_user_id: uuid::Uuid, remote_actor_url: &str, status: FollowingStatus) -> Result<()>;
+    async fn update_following_status(
+        &self,
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+        status: FollowingStatus,
+    ) -> Result<()>;
 }

crates/adapters/activitypub-base/src/service.rs

@@ -6,12 +6,12 @@ use activitypub_federation::{
     protocol::context::WithContext,
     traits::Actor,
 };
-use axum::{routing::get, routing::post, Router};
+use axum::{Router, routing::get, routing::post};
 use url::Url;
 
 use crate::{
     activities::{AcceptActivity, CreateActivity, FollowActivity, RejectActivity, UndoActivity},
-    actors::{get_local_actor, DbActor},
+    actors::{DbActor, get_local_actor},
     content::ApObjectHandler,
     data::FederationData,
     federation::ApFederationConfig,
@@ -19,8 +19,8 @@ use crate::{
     inbox::inbox_handler,
     outbox::outbox_handler,
     repository::{FederationRepository, FollowerStatus, FollowingStatus, RemoteActor},
-    user::ApUserRepository,
     urls::activity_url,
+    user::ApUserRepository,
     webfinger::webfinger_handler,
 };
 
@@ -64,7 +64,10 @@ impl ActivityPubService {
     ) -> anyhow::Result<Self> {
         let data = FederationData::new(repo, user_repo, object_handler, base_url.clone());
         let federation_config = ApFederationConfig::new(data, debug).await?;
-        Ok(Self { federation_config, base_url })
+        Ok(Self {
+            federation_config,
+            base_url,
+        })
     }
 
     pub fn federation_config(&self) -> &ApFederationConfig {
@@ -82,7 +85,9 @@ impl ActivityPubService {
         let actor = get_local_actor(uuid, &data)
             .await
             .map_err(|e| anyhow::anyhow!("{e}"))?;
-        let person = actor.into_json(&data).await
+        let person = actor
+            .into_json(&data)
+            .await
             .map_err(|e| anyhow::anyhow!("{e}"))?;
         Ok(serde_json::to_string(&WithContext::new_default(person))?)
     }
@@ -133,7 +138,10 @@ impl ActivityPubService {
         .await?;
         let failures = send_with_retry(sends, &data).await;
         if !failures.is_empty() {
-            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+            tracing::warn!(
+                count = failures.len(),
+                "some activity deliveries failed permanently"
+            );
         }
 
         let remote = RemoteActor {
@@ -150,11 +158,17 @@ impl ActivityPubService {
         Ok(())
     }
 
-    pub async fn unfollow(&self, local_user_id: uuid::Uuid, actor_url_str: &str) -> anyhow::Result<()> {
+    pub async fn unfollow(
+        &self,
+        local_user_id: uuid::Uuid,
+        actor_url_str: &str,
+    ) -> anyhow::Result<()> {
         let data = self.federation_config.to_request_data();
 
         if actor_url_str.starts_with(&self.base_url) {
-            return self.unfollow_local(local_user_id, actor_url_str, &data).await;
+            return self
+                .unfollow_local(local_user_id, actor_url_str, &data)
+                .await;
         }
 
         let remote = data
@@ -202,7 +216,10 @@ impl ActivityPubService {
         .await?;
         let failures = send_with_retry(sends, &data).await;
         if !failures.is_empty() {
-            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+            tracing::warn!(
+                count = failures.len(),
+                "some activity deliveries failed permanently"
+            );
         }
 
         data.federation_repo
@@ -236,7 +253,9 @@ impl ActivityPubService {
             .federation_repo
             .get_follower_follow_activity_id(local_user_id, remote_actor_url)
             .await?
-            .ok_or_else(|| anyhow::anyhow!("follow activity id not found for {}", remote_actor_url))?;
+            .ok_or_else(|| {
+                anyhow::anyhow!("follow activity id not found for {}", remote_actor_url)
+            })?;
         let follow_id = Url::parse(&follow_id_str)?;
         let follow = FollowActivity {
             id: follow_id,
@@ -265,7 +284,9 @@ impl ActivityPubService {
         .await?;
         let failures = send_with_retry(sends, &data).await;
         if !failures.is_empty() {
-            tracing::warn!("failed to deliver Accept activity, but follower is marked accepted locally");
+            tracing::warn!(
+                "failed to deliver Accept activity, but follower is marked accepted locally"
+            );
         }
 
         self.spawn_backfill(local_user_id, remote_actor.inbox_url.clone());
@@ -313,7 +334,10 @@ impl ActivityPubService {
         .await?;
         let failures = send_with_retry(sends, &data).await;
         if !failures.is_empty() {
-            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+            tracing::warn!(
+                count = failures.len(),
+                "some activity deliveries failed permanently"
+            );
         }
 
         data.federation_repo
@@ -323,12 +347,20 @@ impl ActivityPubService {
         Ok(())
     }
 
-    pub async fn get_pending_followers(&self, local_user_id: uuid::Uuid) -> anyhow::Result<Vec<RemoteActor>> {
+    pub async fn get_pending_followers(
+        &self,
+        local_user_id: uuid::Uuid,
+    ) -> anyhow::Result<Vec<RemoteActor>> {
         let data = self.federation_config.to_request_data();
-        data.federation_repo.get_pending_followers(local_user_id).await
+        data.federation_repo
+            .get_pending_followers(local_user_id)
+            .await
     }
 
-    pub async fn get_accepted_followers(&self, local_user_id: uuid::Uuid) -> anyhow::Result<Vec<RemoteActor>> {
+    pub async fn get_accepted_followers(
+        &self,
+        local_user_id: uuid::Uuid,
+    ) -> anyhow::Result<Vec<RemoteActor>> {
         let data = self.federation_config.to_request_data();
         let followers = data.federation_repo.get_followers(local_user_id).await?;
         Ok(followers
@@ -338,13 +370,22 @@ impl ActivityPubService {
             .collect())
     }
 
-    pub async fn count_accepted_followers(&self, local_user_id: uuid::Uuid) -> anyhow::Result<usize> {
+    pub async fn count_accepted_followers(
+        &self,
+        local_user_id: uuid::Uuid,
+    ) -> anyhow::Result<usize> {
         let data = self.federation_config.to_request_data();
         let followers = data.federation_repo.get_followers(local_user_id).await?;
-        Ok(followers.into_iter().filter(|f| f.status == FollowerStatus::Accepted).count())
+        Ok(followers
+            .into_iter()
+            .filter(|f| f.status == FollowerStatus::Accepted)
+            .count())
     }
 
-    pub async fn get_following(&self, local_user_id: uuid::Uuid) -> anyhow::Result<Vec<RemoteActor>> {
+    pub async fn get_following(
+        &self,
+        local_user_id: uuid::Uuid,
+    ) -> anyhow::Result<Vec<RemoteActor>> {
         let data = self.federation_config.to_request_data();
         data.federation_repo.get_following(local_user_id).await
     }
@@ -354,9 +395,15 @@ impl ActivityPubService {
         data.federation_repo.count_following(local_user_id).await
     }
 
-    pub async fn remove_follower(&self, local_user_id: uuid::Uuid, actor_url: &str) -> anyhow::Result<()> {
+    pub async fn remove_follower(
+        &self,
+        local_user_id: uuid::Uuid,
+        actor_url: &str,
+    ) -> anyhow::Result<()> {
         let data = self.federation_config.to_request_data();
-        data.federation_repo.remove_follower(local_user_id, actor_url).await
+        data.federation_repo
+            .remove_follower(local_user_id, actor_url)
+            .await
     }
 
     /// Broadcast a single object to all accepted followers as a Create activity.
@@ -395,10 +442,14 @@ impl ActivityPubService {
             .filter_map(|f| Url::parse(&f.actor.inbox_url).ok())
             .collect();
 
-        let sends = SendActivityTask::prepare(&create_with_ctx, &local_actor, inboxes, &data).await?;
+        let sends =
+            SendActivityTask::prepare(&create_with_ctx, &local_actor, inboxes, &data).await?;
         let failures = send_with_retry(sends, &data).await;
         if !failures.is_empty() {
-            tracing::warn!(count = failures.len(), "some activity deliveries failed permanently");
+            tracing::warn!(
+                count = failures.len(),
+                "some activity deliveries failed permanently"
+            );
         }
 
         Ok(())
@@ -423,10 +474,17 @@ impl ActivityPubService {
         let follower_actor_url = crate::urls::actor_url(&self.base_url, local_user_id).to_string();
         let target_actor_url = crate::urls::actor_url(&self.base_url, target.id);
         let target_inbox_url = format!("{}/inbox", target_actor_url);
-        let follow_id = activity_url(&self.base_url).map_err(|e| anyhow::anyhow!("{e}"))?.to_string();
+        let follow_id = activity_url(&self.base_url)
+            .map_err(|e| anyhow::anyhow!("{e}"))?
+            .to_string();
 
         data.federation_repo
-            .add_follower(target.id, &follower_actor_url, FollowerStatus::Accepted, &follow_id)
+            .add_follower(
+                target.id,
+                &follower_actor_url,
+                FollowerStatus::Accepted,
+                &follow_id,
+            )
             .await?;
 
         let target_as_remote = RemoteActor {
@@ -441,7 +499,11 @@ impl ActivityPubService {
             .await?;
 
         data.federation_repo
-            .update_following_status(local_user_id, &target_actor_url.to_string(), FollowingStatus::Accepted)
+            .update_following_status(
+                local_user_id,
+                &target_actor_url.to_string(),
+                FollowingStatus::Accepted,
+            )
             .await?;
 
         tracing::info!(follower = %local_user_id, followee = %target.id, "local follow");
@@ -460,8 +522,12 @@ impl ActivityPubService {
 
         let local_actor_url = crate::urls::actor_url(&self.base_url, local_user_id).to_string();
 
-        data.federation_repo.remove_follower(target_user_id, &local_actor_url).await?;
+        data.federation_repo
-        data.federation_repo.remove_following(local_user_id, target_actor_url).await?;
+            .remove_follower(target_user_id, &local_actor_url)
+            .await?;
+        data.federation_repo
+            .remove_following(local_user_id, target_actor_url)
+            .await?;
 
         tracing::info!(follower = %local_user_id, followee = %target_user_id, "local unfollow");
         Ok(())
@@ -471,7 +537,14 @@ impl ActivityPubService {
         let config = self.federation_config.clone();
         let base_url = self.base_url.clone();
         tokio::spawn(async move {
-            if let Err(e) = ActivityPubService::run_backfill(config, base_url, owner_user_id, follower_inbox_url).await {
+            if let Err(e) = ActivityPubService::run_backfill(
+                config,
+                base_url,
+                owner_user_id,
+                follower_inbox_url,
+            )
+            .await
+            {
                 tracing::warn!(error = %e, "backfill: task failed");
             }
         });
@@ -491,7 +564,10 @@ impl ActivityPubService {
             .map_err(|e| anyhow::anyhow!("{e}"))?;
         let inbox = Url::parse(&follower_inbox_url)?;
 
-        let mut objects = data.object_handler.get_local_objects_for_user(owner_user_id).await?;
+        let mut objects = data
+            .object_handler
+            .get_local_objects_for_user(owner_user_id)
+            .await?;
         objects.reverse(); // oldest first → chronological feed
 
         let total = objects.len();
@@ -501,7 +577,9 @@ impl ActivityPubService {
         for chunk in objects.chunks(BATCH_SIZE) {
             for (ap_id, object_json) in chunk {
                 // Use a stable Create activity ID derived from the object's ap_id
-                let create_id = Url::parse(&format!("{}/activities/create/{}", base_url,
+                let create_id = Url::parse(&format!(
+                    "{}/activities/create/{}",
+                    base_url,
                     uuid::Uuid::new_v5(&uuid::Uuid::NAMESPACE_URL, ap_id.as_str().as_bytes())
                 ))?;
 
@@ -517,7 +595,8 @@ impl ActivityPubService {
                     &local_actor,
                     vec![inbox.clone()],
                     &data,
-                ).await?;
+                )
+                .await?;
                 let failures = send_with_retry(sends, &data).await;
                 if failures.is_empty() {
                     success_count += 1;

crates/adapters/activitypub-base/src/webfinger.rs

@@ -1,6 +1,6 @@
 use activitypub_federation::{
     config::Data,
-    fetch::webfinger::{build_webfinger_response, extract_webfinger_name, Webfinger},
+    fetch::webfinger::{Webfinger, build_webfinger_response, extract_webfinger_name},
 };
 use axum::{
     extract::Query,
@@ -33,10 +33,6 @@ pub async fn webfinger_handler(
     let ap_id = crate::urls::actor_url(&data.base_url, user.id);
 
     let wf: Webfinger = build_webfinger_response(query.resource, ap_id);
-    let body = serde_json::to_string(&wf)
+    let body = serde_json::to_string(&wf).map_err(|e| Error::from(anyhow::anyhow!(e)))?;
-        .map_err(|e| Error::from(anyhow::anyhow!(e)))?;
+    Ok(([(header::CONTENT_TYPE, "application/jrd+json")], body).into_response())
-    Ok((
-        [(header::CONTENT_TYPE, "application/jrd+json")],
-        body,
-    ).into_response())
 }

crates/adapters/activitypub/src/event_handler.rs

@@ -1,11 +1,11 @@
 use async_trait::async_trait;
+use domain::ports::EventHandler;
 use domain::{
     errors::DomainError,
     events::DomainEvent,
     ports::{MovieRepository, ReviewRepository},
     value_objects::{ReviewId, UserId},
 };
-use domain::ports::EventHandler;
 use std::sync::Arc;
 
 use activitypub_base::ActivityPubService;
@@ -27,7 +27,12 @@ impl ActivityPubEventHandler {
         review_repository: Arc<dyn ReviewRepository>,
         base_url: String,
     ) -> Self {
-        Self { ap_service, movie_repository, review_repository, base_url }
+        Self {
+            ap_service,
+            movie_repository,
+            review_repository,
+            base_url,
+        }
     }
 }
 
@@ -35,7 +40,9 @@ impl ActivityPubEventHandler {
 impl EventHandler for ActivityPubEventHandler {
     async fn handle(&self, event: &DomainEvent) -> Result<(), DomainError> {
         match event {
-            DomainEvent::ReviewLogged { review_id, user_id, .. } => self
+            DomainEvent::ReviewLogged {
+                review_id, user_id, ..
+            } => self
                 .on_review_logged(user_id, review_id)
                 .await
                 .map_err(|e| DomainError::InfrastructureError(e.to_string())),
@@ -45,11 +52,7 @@ impl EventHandler for ActivityPubEventHandler {
 }
 
 impl ActivityPubEventHandler {
-    async fn on_review_logged(
+    async fn on_review_logged(&self, user_id: &UserId, review_id: &ReviewId) -> anyhow::Result<()> {
-        &self,
-        user_id: &UserId,
-        review_id: &ReviewId,
-    ) -> anyhow::Result<()> {
         let review = match self.review_repository.get_review_by_id(review_id).await? {
             Some(r) => r,
             None => return Ok(()),
@@ -58,16 +61,33 @@ impl ActivityPubEventHandler {
         let ap_id = review_url(&self.base_url, review_id);
         let actor = actor_url(&self.base_url, user_id.value());
 
-        let movie = self.movie_repository.get_movie_by_id(review.movie_id()).await.ok().flatten();
+        let movie = self
-        let movie_title = movie.as_ref()
+            .movie_repository
+            .get_movie_by_id(review.movie_id())
+            .await
+            .ok()
+            .flatten();
+        let movie_title = movie
+            .as_ref()
             .map(|m| m.title().value().to_string())
             .unwrap_or_else(|| "Unknown".to_string());
-        let release_year = movie.as_ref().map(|m| m.release_year().value()).unwrap_or(0);
+        let release_year = movie
-        let poster_url = movie.as_ref()
+            .as_ref()
+            .map(|m| m.release_year().value())
+            .unwrap_or(0);
+        let poster_url = movie
+            .as_ref()
             .and_then(|m| m.poster_path())
             .map(|p| format!("{}/posters/{}", self.base_url, p.value()));
 
-        let obj = review_to_ap_object(&review, ap_id.clone(), actor, movie_title, release_year, poster_url);
+        let obj = review_to_ap_object(
+            &review,
+            ap_id.clone(),
+            actor,
+            movie_title,
+            release_year,
+            poster_url,
+        );
         let json = serde_json::to_value(obj)?;
 
         self.ap_service

crates/adapters/activitypub/src/lib.rs

@@ -3,8 +3,8 @@ pub mod objects;
 pub mod port;
 pub mod remote_review_repository;
 pub mod review_handler;
-pub mod user_adapter;
 pub(crate) mod urls;
+pub mod user_adapter;
 
 // Re-export the generic base types that callers need
 pub use activitypub_base::{

crates/adapters/activitypub/src/objects.rs

@@ -36,10 +36,17 @@ pub fn review_to_ap_object(
 ) -> ReviewObject {
     let stars: String = "\u{2B50}".repeat(review.rating().value() as usize);
     let comment_text = review.comment().map(|c| c.value().to_string());
-    let year_str = if release_year > 0 { format!(" ({})", release_year) } else { String::new() };
+    let year_str = if release_year > 0 {
+        format!(" ({})", release_year)
+    } else {
+        String::new()
+    };
     let watched_str = format!("Watched: {}", review.watched_at().format("%b %-d, %Y"));
     let content = match &comment_text {
-        Some(c) => format!("{} {}{}\n{}\n{}", stars, movie_title, year_str, c, watched_str),
+        Some(c) => format!(
+            "{} {}{}\n{}\n{}",
+            stars, movie_title, year_str, c, watched_str
+        ),
         None => format!("{} {}{}\n{}", stars, movie_title, year_str, watched_str),
     };
 

crates/adapters/activitypub/src/port.rs

@@ -11,10 +11,19 @@ pub trait ActivityPubPort: Send + Sync {
     async fn get_pending_followers(&self, local_user_id: Uuid) -> anyhow::Result<Vec<RemoteActor>>;
     async fn follow(&self, local_user_id: Uuid, handle: &str) -> anyhow::Result<()>;
     async fn unfollow(&self, local_user_id: Uuid, actor_url: &str) -> anyhow::Result<()>;
-    async fn accept_follower(&self, local_user_id: Uuid, remote_actor_url: &str) -> anyhow::Result<()>;
+    async fn accept_follower(
-    async fn reject_follower(&self, local_user_id: Uuid, remote_actor_url: &str) -> anyhow::Result<()>;
+        &self,
+        local_user_id: Uuid,
+        remote_actor_url: &str,
+    ) -> anyhow::Result<()>;
+    async fn reject_follower(
+        &self,
+        local_user_id: Uuid,
+        remote_actor_url: &str,
+    ) -> anyhow::Result<()>;
     async fn get_following(&self, local_user_id: Uuid) -> anyhow::Result<Vec<RemoteActor>>;
-    async fn get_accepted_followers(&self, local_user_id: Uuid) -> anyhow::Result<Vec<RemoteActor>>;
+    async fn get_accepted_followers(&self, local_user_id: Uuid)
+    -> anyhow::Result<Vec<RemoteActor>>;
     async fn remove_follower(&self, local_user_id: Uuid, actor_url: &str) -> anyhow::Result<()>;
 }
 
@@ -38,16 +47,27 @@ impl ActivityPubPort for ActivityPubService {
     async fn unfollow(&self, local_user_id: Uuid, actor_url: &str) -> anyhow::Result<()> {
         self.unfollow(local_user_id, actor_url).await
     }
-    async fn accept_follower(&self, local_user_id: Uuid, remote_actor_url: &str) -> anyhow::Result<()> {
+    async fn accept_follower(
+        &self,
+        local_user_id: Uuid,
+        remote_actor_url: &str,
+    ) -> anyhow::Result<()> {
         self.accept_follower(local_user_id, remote_actor_url).await
     }
-    async fn reject_follower(&self, local_user_id: Uuid, remote_actor_url: &str) -> anyhow::Result<()> {
+    async fn reject_follower(
+        &self,
+        local_user_id: Uuid,
+        remote_actor_url: &str,
+    ) -> anyhow::Result<()> {
         self.reject_follower(local_user_id, remote_actor_url).await
     }
     async fn get_following(&self, local_user_id: Uuid) -> anyhow::Result<Vec<RemoteActor>> {
         self.get_following(local_user_id).await
     }
-    async fn get_accepted_followers(&self, local_user_id: Uuid) -> anyhow::Result<Vec<RemoteActor>> {
+    async fn get_accepted_followers(
+        &self,
+        local_user_id: Uuid,
+    ) -> anyhow::Result<Vec<RemoteActor>> {
         self.get_accepted_followers(local_user_id).await
     }
     async fn remove_follower(&self, local_user_id: Uuid, actor_url: &str) -> anyhow::Result<()> {
@@ -59,15 +79,37 @@ pub struct NoopActivityPubService;
 
 #[async_trait]
 impl ActivityPubPort for NoopActivityPubService {
-    async fn actor_json(&self, _: &str) -> anyhow::Result<String> { Ok(String::new()) }
+    async fn actor_json(&self, _: &str) -> anyhow::Result<String> {
-    async fn count_following(&self, _: Uuid) -> anyhow::Result<usize> { Ok(0) }
+        Ok(String::new())
-    async fn count_accepted_followers(&self, _: Uuid) -> anyhow::Result<usize> { Ok(0) }
+    }
-    async fn get_pending_followers(&self, _: Uuid) -> anyhow::Result<Vec<RemoteActor>> { Ok(vec![]) }
+    async fn count_following(&self, _: Uuid) -> anyhow::Result<usize> {
-    async fn follow(&self, _: Uuid, _: &str) -> anyhow::Result<()> { Ok(()) }
+        Ok(0)
-    async fn unfollow(&self, _: Uuid, _: &str) -> anyhow::Result<()> { Ok(()) }
+    }
-    async fn accept_follower(&self, _: Uuid, _: &str) -> anyhow::Result<()> { Ok(()) }
+    async fn count_accepted_followers(&self, _: Uuid) -> anyhow::Result<usize> {
-    async fn reject_follower(&self, _: Uuid, _: &str) -> anyhow::Result<()> { Ok(()) }
+        Ok(0)
-    async fn get_following(&self, _: Uuid) -> anyhow::Result<Vec<RemoteActor>> { Ok(vec![]) }
+    }
-    async fn get_accepted_followers(&self, _: Uuid) -> anyhow::Result<Vec<RemoteActor>> { Ok(vec![]) }
+    async fn get_pending_followers(&self, _: Uuid) -> anyhow::Result<Vec<RemoteActor>> {
-    async fn remove_follower(&self, _: Uuid, _: &str) -> anyhow::Result<()> { Ok(()) }
+        Ok(vec![])
+    }
+    async fn follow(&self, _: Uuid, _: &str) -> anyhow::Result<()> {
+        Ok(())
+    }
+    async fn unfollow(&self, _: Uuid, _: &str) -> anyhow::Result<()> {
+        Ok(())
+    }
+    async fn accept_follower(&self, _: Uuid, _: &str) -> anyhow::Result<()> {
+        Ok(())
+    }
+    async fn reject_follower(&self, _: Uuid, _: &str) -> anyhow::Result<()> {
+        Ok(())
+    }
+    async fn get_following(&self, _: Uuid) -> anyhow::Result<Vec<RemoteActor>> {
+        Ok(vec![])
+    }
+    async fn get_accepted_followers(&self, _: Uuid) -> anyhow::Result<Vec<RemoteActor>> {
+        Ok(vec![])
+    }
+    async fn remove_follower(&self, _: Uuid, _: &str) -> anyhow::Result<()> {
+        Ok(())
+    }
 }

crates/adapters/activitypub/src/review_handler.rs

@@ -9,7 +9,7 @@ use domain::{
 };
 use url::Url;
 
-use crate::objects::{review_to_ap_object, ReviewObject};
+use crate::objects::{ReviewObject, review_to_ap_object};
 use crate::remote_review_repository::RemoteReviewRepository;
 use crate::urls::{actor_url, review_url};
 
@@ -27,7 +27,10 @@ impl ApObjectHandler for ReviewObjectHandler {
         user_id: uuid::Uuid,
     ) -> anyhow::Result<Vec<(Url, serde_json::Value)>> {
         let domain_user_id = UserId::from_uuid(user_id);
-        let history = self.diary_repository.get_user_history(&domain_user_id).await?;
+        let history = self
+            .diary_repository
+            .get_user_history(&domain_user_id)
+            .await?;
 
         let mut results = Vec::new();
         for entry in history {
@@ -39,18 +42,33 @@ impl ApObjectHandler for ReviewObjectHandler {
             let ap_id = review_url(&self.base_url, review.id());
             let actor_url = actor_url(&self.base_url, user_id);
 
-            let movie = self.movie_repository.get_movie_by_id(review.movie_id()).await.ok().flatten();
+            let movie = self
-            let movie_title = movie.as_ref()
+                .movie_repository
+                .get_movie_by_id(review.movie_id())
+                .await
+                .ok()
+                .flatten();
+            let movie_title = movie
+                .as_ref()
                 .map(|m| m.title().value().to_string())
                 .unwrap_or_else(|| "Unknown".to_string());
-            let release_year = movie.as_ref()
+            let release_year = movie
+                .as_ref()
                 .map(|m| m.release_year().value())
                 .unwrap_or(0);
-            let poster_url = movie.as_ref()
+            let poster_url = movie
+                .as_ref()
                 .and_then(|m| m.poster_path())
                 .map(|p| format!("{}/posters/{}", self.base_url, p.value()));
 
-            let obj = review_to_ap_object(review, ap_id.clone(), actor_url, movie_title, release_year, poster_url);
+            let obj = review_to_ap_object(
+                review,
+                ap_id.clone(),
+                actor_url,
+                movie_title,
+                release_year,
+                poster_url,
+            );
             let json = serde_json::to_value(obj)?;
             results.push((ap_id, json));
         }
@@ -73,8 +91,14 @@ impl ApObjectHandler for ReviewObjectHandler {
 
         let actor_url_str = obj.attributed_to.to_string();
         let review_id = ReviewId::generate();
-        let movie_id = MovieId::from_uuid(uuid::Uuid::new_v5(&uuid::Uuid::NAMESPACE_URL, obj.movie_title.as_bytes()));
+        let movie_id = MovieId::from_uuid(uuid::Uuid::new_v5(
-        let user_id = UserId::from_uuid(uuid::Uuid::new_v5(&uuid::Uuid::NAMESPACE_URL, actor_url_str.as_bytes()));
+            &uuid::Uuid::NAMESPACE_URL,
+            obj.movie_title.as_bytes(),
+        ));
+        let user_id = UserId::from_uuid(uuid::Uuid::new_v5(
+            &uuid::Uuid::NAMESPACE_URL,
+            actor_url_str.as_bytes(),
+        ));
         let rating = Rating::new(obj.rating.min(5))?;
         let comment = obj.comment.map(Comment::new).transpose()?;
 
@@ -86,11 +110,19 @@ impl ApObjectHandler for ReviewObjectHandler {
             comment,
             obj.watched_at.naive_utc(),
             obj.published.naive_utc(),
-            ReviewSource::Remote { actor_url: actor_url_str },
+            ReviewSource::Remote {
+                actor_url: actor_url_str,
+            },
         );
 
         self.review_store
-            .save_remote_review(&review, obj.id.as_str(), &obj.movie_title, obj.release_year, obj.poster_url.as_deref())
+            .save_remote_review(
+                &review,
+                obj.id.as_str(),
+                &obj.movie_title,
+                obj.release_year,
+                obj.poster_url.as_deref(),
+            )
             .await?;
 
         Ok(())

crates/adapters/activitypub/src/urls.rs

@@ -1,5 +1,5 @@
-use url::Url;
 use domain::value_objects::ReviewId;
+use url::Url;
 
 /// Builds the canonical actor URL: `{base_url}/users/{user_id}`
 pub fn actor_url(base_url: &str, user_id: uuid::Uuid) -> Url {

crates/adapters/activitypub/src/user_adapter.rs

@@ -18,8 +18,8 @@ impl ApUserRepository for DomainUserRepoAdapter {
 
     async fn find_by_username(&self, username: &str) -> anyhow::Result<Option<ApUser>> {
         use domain::value_objects::Username;
-        let uname = Username::new(username.to_string())
+        let uname =
-            .map_err(|e| anyhow::anyhow!(e.to_string()))?;
+            Username::new(username.to_string()).map_err(|e| anyhow::anyhow!(e.to_string()))?;
         Ok(self.0.find_by_username(&uname).await?.map(|u| ApUser {
             id: u.id().value(),
             username: u.username().value().to_string(),

crates/adapters/auth/src/lib.rs

@@ -1,8 +1,8 @@
-use async_trait::async_trait;
 use argon2::{
     Argon2,
     password_hash::{PasswordHasher as _, PasswordVerifier, SaltString},
 };
+use async_trait::async_trait;
 use chrono::{Duration, Utc};
 use jsonwebtoken::{DecodingKey, EncodingKey, Header, Validation, decode, encode};
 use rand_core::OsRng;
@@ -31,7 +31,10 @@ impl AuthConfig {
             .ok()
             .and_then(|v| v.parse().ok())
             .unwrap_or(86400u64);
-        Ok(Self { secret, ttl_seconds })
+        Ok(Self {
+            secret,
+            ttl_seconds,
+        })
     }
 }
 

crates/adapters/event-publisher/src/lib.rs

@@ -120,12 +120,12 @@ pub fn create_event_channel(
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::sync::{Arc, Mutex};
     use domain::{
         errors::DomainError,
         events::DomainEvent,
         value_objects::{ExternalMetadataId, MovieId},
     };
+    use std::sync::{Arc, Mutex};
 
     struct RecordingHandler {
         calls: Arc<Mutex<Vec<String>>>,
@@ -147,7 +147,9 @@ mod tests {
     #[tokio::test]
     async fn single_handler_receives_event() {
         let calls = Arc::new(Mutex::new(vec![]));
-        let handler = RecordingHandler { calls: Arc::clone(&calls) };
+        let handler = RecordingHandler {
+            calls: Arc::clone(&calls),
+        };
         let config = EventPublisherConfig { channel_buffer: 8 };
         let (publisher, worker) = create_event_channel(config, vec![Box::new(handler)]);
 
@@ -168,13 +170,15 @@ mod tests {
     async fn multiple_handlers_all_receive_event() {
         let calls1 = Arc::new(Mutex::new(vec![]));
         let calls2 = Arc::new(Mutex::new(vec![]));
-        let handler1 = RecordingHandler { calls: Arc::clone(&calls1) };
+        let handler1 = RecordingHandler {
-        let handler2 = RecordingHandler { calls: Arc::clone(&calls2) };
+            calls: Arc::clone(&calls1),
+        };
+        let handler2 = RecordingHandler {
+            calls: Arc::clone(&calls2),
+        };
         let config = EventPublisherConfig { channel_buffer: 8 };
-        let (publisher, worker) = create_event_channel(
+        let (publisher, worker) =
-            config,
+            create_event_channel(config, vec![Box::new(handler1), Box::new(handler2)]);
-            vec![Box::new(handler1), Box::new(handler2)],
-        );
 
         let handle = tokio::spawn(worker.run());
 
@@ -201,12 +205,12 @@ mod tests {
         }
 
         let calls = Arc::new(Mutex::new(vec![]));
-        let good = RecordingHandler { calls: Arc::clone(&calls) };
+        let good = RecordingHandler {
+            calls: Arc::clone(&calls),
+        };
         let config = EventPublisherConfig { channel_buffer: 8 };
-        let (publisher, worker) = create_event_channel(
+        let (publisher, worker) =
-            config,
+            create_event_channel(config, vec![Box::new(FailingHandler), Box::new(good)]);
-            vec![Box::new(FailingHandler), Box::new(good)],
-        );
 
         let handle = tokio::spawn(worker.run());
 

crates/adapters/export/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "export"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+domain = { workspace = true }
+async-trait = { workspace = true }
+serde_json = { workspace = true }
+chrono = { workspace = true }
+
+[dev-dependencies]
+uuid = { workspace = true }
+tokio = { workspace = true }

crates/adapters/export/src/lib.rs

@@ -0,0 +1,225 @@
+use async_trait::async_trait;
+use domain::{
+    errors::DomainError,
+    models::{DiaryEntry, ExportFormat},
+    ports::DiaryExporter,
+};
+
+pub struct ExportAdapter;
+
+#[async_trait]
+impl DiaryExporter for ExportAdapter {
+    async fn serialize_entries(
+        &self,
+        entries: &[DiaryEntry],
+        format: ExportFormat,
+    ) -> Result<Vec<u8>, DomainError> {
+        match format {
+            ExportFormat::Csv => serialize_csv(entries),
+            ExportFormat::Json => serialize_json(entries),
+        }
+    }
+}
+
+fn serialize_csv(entries: &[DiaryEntry]) -> Result<Vec<u8>, DomainError> {
+    let mut out =
+        String::from("title,year,director,rating,comment,watched_at,external_metadata_id\n");
+    for e in entries {
+        let title = csv_escape(e.movie().title().value());
+        let year = e.movie().release_year().value();
+        let director = e.movie().director().map(csv_escape).unwrap_or_default();
+        let rating = e.review().rating().value();
+        let comment = e
+            .review()
+            .comment()
+            .map(|c| csv_escape(c.value()))
+            .unwrap_or_default();
+        let watched_at = e.review().watched_at().format("%Y-%m-%d");
+        let ext_id = e
+            .movie()
+            .external_metadata_id()
+            .map(|id| id.value().to_string())
+            .unwrap_or_default();
+        out.push_str(&format!(
+            "{},{},{},{},{},{},{}\n",
+            title, year, director, rating, comment, watched_at, ext_id
+        ));
+    }
+    Ok(out.into_bytes())
+}
+
+fn csv_escape(s: &str) -> String {
+    if s.contains(',') || s.contains('"') || s.contains('\n') {
+        format!("\"{}\"", s.replace('"', "\"\""))
+    } else {
+        s.to_string()
+    }
+}
+
+fn serialize_json(entries: &[DiaryEntry]) -> Result<Vec<u8>, DomainError> {
+    let arr: Vec<serde_json::Value> = entries
+        .iter()
+        .map(|e| {
+            serde_json::json!({
+                "title": e.movie().title().value(),
+                "year": e.movie().release_year().value(),
+                "director": e.movie().director(),
+                "rating": e.review().rating().value(),
+                "comment": e.review().comment().map(|c| c.value()),
+                "watched_at": e.review().watched_at().format("%Y-%m-%d").to_string(),
+                "external_metadata_id": e.movie().external_metadata_id().map(|id| id.value()),
+            })
+        })
+        .collect();
+    serde_json::to_vec_pretty(&arr).map_err(|e| DomainError::InfrastructureError(e.to_string()))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::ExportAdapter;
+    use domain::{
+        models::{DiaryEntry, ExportFormat, Movie, Review},
+        ports::DiaryExporter,
+        value_objects::{ExternalMetadataId, MovieTitle, Rating, ReleaseYear},
+    };
+
+    fn make_entry(
+        title: &str,
+        year: u16,
+        director: Option<&str>,
+        rating: u8,
+        comment: Option<&str>,
+    ) -> DiaryEntry {
+        make_entry_full(title, year, director, rating, comment, None)
+    }
+
+    fn make_entry_full(
+        title: &str,
+        year: u16,
+        director: Option<&str>,
+        rating: u8,
+        comment: Option<&str>,
+        external_id: Option<&str>,
+    ) -> DiaryEntry {
+        let movie = Movie::new(
+            external_id.map(|id| ExternalMetadataId::new(id.to_string()).unwrap()),
+            MovieTitle::new(title.to_string()).unwrap(),
+            ReleaseYear::new(year).unwrap(),
+            director.map(str::to_string),
+            None,
+        );
+        let user_id = domain::value_objects::UserId::from_uuid(uuid::Uuid::new_v4());
+        let review = Review::new(
+            movie.id().clone(),
+            user_id,
+            Rating::new(rating).unwrap(),
+            comment.map(|c| domain::value_objects::Comment::new(c.to_string()).unwrap()),
+            chrono::NaiveDate::from_ymd_opt(2024, 3, 15)
+                .unwrap()
+                .and_hms_opt(0, 0, 0)
+                .unwrap(),
+        )
+        .unwrap();
+        DiaryEntry::new(movie, review)
+    }
+
+    #[tokio::test]
+    async fn csv_has_header_and_one_row() {
+        let adapter = ExportAdapter;
+        let entry = make_entry(
+            "Inception",
+            2010,
+            Some("Christopher Nolan"),
+            5,
+            Some("great"),
+        );
+        let bytes = adapter
+            .serialize_entries(&[entry], ExportFormat::Csv)
+            .await
+            .unwrap();
+        let text = String::from_utf8(bytes).unwrap();
+        assert!(
+            text.starts_with(
+                "title,year,director,rating,comment,watched_at,external_metadata_id\n"
+            )
+        );
+        assert!(text.contains("Inception"));
+        assert!(text.contains("2010"));
+        assert!(text.contains("Christopher Nolan"));
+        assert!(text.contains("5"));
+        assert!(text.contains("great"));
+        assert!(text.contains("2024-03-15"));
+    }
+
+    #[tokio::test]
+    async fn csv_escapes_commas_in_title() {
+        let adapter = ExportAdapter;
+        let entry = make_entry("Tár, A Film", 2022, None, 4, None);
+        let bytes = adapter
+            .serialize_entries(&[entry], ExportFormat::Csv)
+            .await
+            .unwrap();
+        let text = String::from_utf8(bytes).unwrap();
+        assert!(text.contains("\"Tár, A Film\""));
+    }
+
+    #[tokio::test]
+    async fn json_is_valid_array() {
+        let adapter = ExportAdapter;
+        let entry = make_entry("Dune", 2021, Some("Denis Villeneuve"), 5, None);
+        let bytes = adapter
+            .serialize_entries(&[entry], ExportFormat::Json)
+            .await
+            .unwrap();
+        let arr: Vec<serde_json::Value> = serde_json::from_slice(&bytes).unwrap();
+        assert_eq!(arr.len(), 1);
+        assert_eq!(arr[0]["title"], "Dune");
+        assert_eq!(arr[0]["year"], 2021);
+        assert_eq!(arr[0]["rating"], 5);
+        assert_eq!(arr[0]["comment"], serde_json::Value::Null);
+        assert_eq!(arr[0]["external_metadata_id"], serde_json::Value::Null);
+    }
+
+    #[tokio::test]
+    async fn external_metadata_id_included_when_present() {
+        let adapter = ExportAdapter;
+        let entry = make_entry_full("Alien", 1979, None, 5, None, Some("tt0078748"));
+        let bytes = adapter
+            .serialize_entries(&[entry], ExportFormat::Json)
+            .await
+            .unwrap();
+        let arr: Vec<serde_json::Value> = serde_json::from_slice(&bytes).unwrap();
+        assert_eq!(arr[0]["external_metadata_id"], "tt0078748");
+
+        let bytes = adapter
+            .serialize_entries(
+                &[make_entry_full(
+                    "Alien",
+                    1979,
+                    None,
+                    5,
+                    None,
+                    Some("tt0078748"),
+                )],
+                ExportFormat::Csv,
+            )
+            .await
+            .unwrap();
+        let text = String::from_utf8(bytes).unwrap();
+        assert!(text.contains("tt0078748"));
+    }
+
+    #[tokio::test]
+    async fn empty_entries_returns_csv_header_only() {
+        let adapter = ExportAdapter;
+        let bytes = adapter
+            .serialize_entries(&[], ExportFormat::Csv)
+            .await
+            .unwrap();
+        let text = String::from_utf8(bytes).unwrap();
+        assert_eq!(
+            text,
+            "title,year,director,rating,comment,watched_at,external_metadata_id\n"
+        );
+    }
+}

crates/adapters/metadata/src/lib.rs

@@ -40,7 +40,13 @@ impl MetadataClient for MetadataClientImpl {
         criteria: &MetadataSearchCriteria,
     ) -> Result<Movie, DomainError> {
         let pm = self.provider.fetch(criteria).await?;
-        Ok(Movie::new(Some(pm.imdb_id), pm.title, pm.release_year, pm.director, None))
+        Ok(Movie::new(
+            Some(pm.imdb_id),
+            pm.title,
+            pm.release_year,
+            pm.director,
+            None,
+        ))
     }
 
     async fn get_poster_url(

crates/adapters/metadata/src/omdb.rs

@@ -101,8 +101,8 @@ impl MetadataProvider for OmdbProvider {
             .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
         let title = MovieTitle::new(resp.title)
             .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
-        let release_year = ReleaseYear::new(year)
+        let release_year =
-            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+            ReleaseYear::new(year).map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
 
         let director = match resp.director.as_str() {
             "N/A" | "" => None,
@@ -114,6 +114,12 @@ impl MetadataProvider for OmdbProvider {
             url => PosterUrl::new(url.to_string()).ok(),
         };
 
-        Ok(ProviderMovie { imdb_id, title, release_year, director, poster_url })
+        Ok(ProviderMovie {
+            imdb_id,
+            title,
+            release_year,
+            director,
+            poster_url,
+        })
     }
 }

crates/adapters/poster-storage/src/config.rs

@@ -22,9 +22,9 @@ impl StorageConfig {
                 &std::env::var("POSTER_STORAGE_PATH")
                     .context("POSTER_STORAGE_PATH required when POSTER_STORAGE_BACKEND=local")?,
             )?,
-            other => anyhow::bail!(
+            other => {
-                "Unknown POSTER_STORAGE_BACKEND: {other:?}. Valid values: s3, local"
+                anyhow::bail!("Unknown POSTER_STORAGE_BACKEND: {other:?}. Valid values: s3, local")
-            ),
+            }
         };
 
         Ok(Self(store))
@@ -55,8 +55,7 @@ fn build_s3_store(
 }
 
 fn build_local_store(path: &str) -> anyhow::Result<Arc<dyn ObjectStore>> {
-    std::fs::create_dir_all(path)
+    std::fs::create_dir_all(path).context("Failed to create poster storage directory")?;
-        .context("Failed to create poster storage directory")?;
     let store = LocalFileSystem::new_with_prefix(path)
         .context("Failed to initialise local file system store")?;
     Ok(Arc::new(store))
@@ -68,8 +67,7 @@ mod tests {
 
     #[test]
     fn local_store_creates_dir_and_succeeds() {
-        let dir = std::env::temp_dir()
+        let dir = std::env::temp_dir().join(format!("poster_test_{}", uuid::Uuid::new_v4()));
-            .join(format!("poster_test_{}", uuid::Uuid::new_v4()));
         let result = build_local_store(dir.to_str().unwrap());
         assert!(result.is_ok(), "expected Ok, got: {:?}", result.err());
         assert!(dir.exists(), "directory should have been created");
@@ -77,8 +75,7 @@ mod tests {
 
     #[test]
     fn local_store_succeeds_if_dir_already_exists() {
-        let dir = std::env::temp_dir()
+        let dir = std::env::temp_dir().join(format!("poster_test_{}", uuid::Uuid::new_v4()));
-            .join(format!("poster_test_{}", uuid::Uuid::new_v4()));
         std::fs::create_dir_all(&dir).unwrap();
         let result = build_local_store(dir.to_str().unwrap());
         assert!(result.is_ok());

crates/adapters/poster-storage/src/lib.rs

@@ -7,7 +7,7 @@ use domain::{
     ports::PosterStorage,
     value_objects::{MovieId, PosterPath},
 };
-use object_store::{Attribute, Attributes, PutOptions, path::Path, ObjectStore};
+use object_store::{Attribute, Attributes, ObjectStore, PutOptions, path::Path};
 use std::sync::Arc;
 
 fn detect_mime(bytes: &[u8]) -> &'static str {
@@ -41,7 +41,10 @@ impl PosterStorage for PosterStorageAdapter {
         let mime = detect_mime(image_bytes);
         let mut attributes = Attributes::new();
         attributes.insert(Attribute::ContentType, mime.into());
-        let opts = PutOptions { attributes, ..Default::default() };
+        let opts = PutOptions {
+            attributes,
+            ..Default::default()
+        };
         self.store
             .put_opts(&path, image_bytes.to_vec().into(), opts)
             .await
@@ -52,7 +55,9 @@ impl PosterStorage for PosterStorageAdapter {
     async fn get_poster(&self, poster_path: &PosterPath) -> Result<Vec<u8>, DomainError> {
         let path = Path::from(poster_path.value().to_string());
         let result = self.store.get(&path).await.map_err(|e| match e {
-            object_store::Error::NotFound { .. } => DomainError::NotFound("Poster not found".into()),
+            object_store::Error::NotFound { .. } => {
+                DomainError::NotFound("Poster not found".into())
+            }
             _ => DomainError::InfrastructureError(e.to_string()),
         })?;
         result

crates/adapters/sqlite-federation/src/lib.rs

@@ -1,10 +1,12 @@
-use anyhow::{anyhow, Result};
+use anyhow::{Result, anyhow};
 use async_trait::async_trait;
 use chrono::{NaiveDateTime, Utc};
 use sqlx::{Row, SqlitePool};
 
-use activitypub_base::{FederationRepository, Follower, FollowerStatus, FollowingStatus, RemoteActor};
 use activitypub::RemoteReviewRepository;
+use activitypub_base::{
+    FederationRepository, Follower, FollowerStatus, FollowingStatus, RemoteActor,
+};
 use domain::models::{Review, ReviewSource};
 
 fn datetime_to_str(dt: &NaiveDateTime) -> String {
@@ -85,7 +87,11 @@ impl FederationRepository for SqliteFederationRepository {
         Ok(row.flatten())
     }
 
-    async fn remove_follower(&self, local_user_id: uuid::Uuid, remote_actor_url: &str) -> Result<()> {
+    async fn remove_follower(
+        &self,
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+    ) -> Result<()> {
         let uid = local_user_id.to_string();
         sqlx::query("DELETE FROM ap_followers WHERE local_user_id = ? AND remote_actor_url = ?")
             .bind(&uid)
@@ -116,11 +122,18 @@ impl FederationRepository for SqliteFederationRepository {
                 let status_str: String = row.get("status");
                 let handle: String = row.try_get("handle").unwrap_or_default();
                 let inbox_url: String = row.try_get("inbox_url").unwrap_or_default();
-                let shared_inbox_url: Option<String> = row.try_get("shared_inbox_url").ok().flatten();
+                let shared_inbox_url: Option<String> =
+                    row.try_get("shared_inbox_url").ok().flatten();
                 let display_name: Option<String> = row.try_get("display_name").ok().flatten();
 
                 Follower {
-                    actor: RemoteActor { url, handle, inbox_url, shared_inbox_url, display_name },
+                    actor: RemoteActor {
+                        url,
+                        handle,
+                        inbox_url,
+                        shared_inbox_url,
+                        display_name,
+                    },
                     status: str_to_status(&status_str),
                 }
             })
@@ -154,7 +167,12 @@ impl FederationRepository for SqliteFederationRepository {
         Ok(())
     }
 
-    async fn add_following(&self, local_user_id: uuid::Uuid, actor: RemoteActor, follow_activity_id: &str) -> Result<()> {
+    async fn add_following(
+        &self,
+        local_user_id: uuid::Uuid,
+        actor: RemoteActor,
+        follow_activity_id: &str,
+    ) -> Result<()> {
         let uid = local_user_id.to_string();
         let now = Utc::now().naive_utc();
         let created_at = datetime_to_str(&now);
@@ -175,7 +193,11 @@ impl FederationRepository for SqliteFederationRepository {
         Ok(())
     }
 
-    async fn get_follow_activity_id(&self, local_user_id: uuid::Uuid, remote_actor_url: &str) -> Result<Option<String>> {
+    async fn get_follow_activity_id(
+        &self,
+        local_user_id: uuid::Uuid,
+        remote_actor_url: &str,
+    ) -> Result<Option<String>> {
         let uid = local_user_id.to_string();
         let row: Option<Option<String>> = sqlx::query_scalar(
             "SELECT follow_activity_id FROM ap_following WHERE local_user_id = ? AND remote_actor_url = ?",
@@ -210,13 +232,16 @@ impl FederationRepository for SqliteFederationRepository {
         .fetch_all(&self.pool)
         .await?;
 
-        Ok(rows.into_iter().map(|row| RemoteActor {
+        Ok(rows
-            url: row.get("url"),
+            .into_iter()
-            handle: row.get("handle"),
+            .map(|row| RemoteActor {
-            inbox_url: row.get("inbox_url"),
+                url: row.get("url"),
-            shared_inbox_url: row.try_get("shared_inbox_url").ok().flatten(),
+                handle: row.get("handle"),
-            display_name: row.try_get("display_name").ok().flatten(),
+                inbox_url: row.get("inbox_url"),
-        }).collect())
+                shared_inbox_url: row.try_get("shared_inbox_url").ok().flatten(),
+                display_name: row.try_get("display_name").ok().flatten(),
+            })
+            .collect())
     }
 
     async fn count_following(&self, local_user_id: uuid::Uuid) -> Result<usize> {
@@ -274,16 +299,25 @@ impl FederationRepository for SqliteFederationRepository {
         }))
     }
 
-    async fn get_local_actor_keypair(&self, user_id: uuid::Uuid) -> Result<Option<(String, String)>> {
+    async fn get_local_actor_keypair(
+        &self,
+        user_id: uuid::Uuid,
+    ) -> Result<Option<(String, String)>> {
         let uid = user_id.to_string();
-        let row = sqlx::query("SELECT public_key, private_key FROM ap_local_actors WHERE user_id = ?")
+        let row =
-            .bind(&uid)
+            sqlx::query("SELECT public_key, private_key FROM ap_local_actors WHERE user_id = ?")
-            .fetch_optional(&self.pool)
+                .bind(&uid)
-            .await?;
+                .fetch_optional(&self.pool)
+                .await?;
         Ok(row.map(|r| (r.get("public_key"), r.get("private_key"))))
     }
 
-    async fn save_local_actor_keypair(&self, user_id: uuid::Uuid, public_key: String, private_key: String) -> Result<()> {
+    async fn save_local_actor_keypair(
+        &self,
+        user_id: uuid::Uuid,
+        public_key: String,
+        private_key: String,
+    ) -> Result<()> {
         let uid = user_id.to_string();
         let now = Utc::now().naive_utc();
         let created_at = datetime_to_str(&now);
@@ -319,13 +353,16 @@ impl FederationRepository for SqliteFederationRepository {
         .fetch_all(&self.pool)
         .await?;
 
-        Ok(rows.into_iter().map(|row| RemoteActor {
+        Ok(rows
-            url: row.get("remote_actor_url"),
+            .into_iter()
-            handle: row.try_get("handle").unwrap_or_default(),
+            .map(|row| RemoteActor {
-            inbox_url: row.try_get("inbox_url").unwrap_or_default(),
+                url: row.get("remote_actor_url"),
-            shared_inbox_url: row.try_get("shared_inbox_url").ok().flatten(),
+                handle: row.try_get("handle").unwrap_or_default(),
-            display_name: row.try_get("display_name").ok().flatten(),
+                inbox_url: row.try_get("inbox_url").unwrap_or_default(),
-        }).collect())
+                shared_inbox_url: row.try_get("shared_inbox_url").ok().flatten(),
+                display_name: row.try_get("display_name").ok().flatten(),
+            })
+            .collect())
     }
 
     async fn update_following_status(

crates/adapters/sqlite/src/lib.rs

@@ -3,8 +3,8 @@ use domain::{
     errors::DomainError,
     events::DomainEvent,
     models::{
-        DiaryEntry, DiaryFilter, DirectorStat, FeedEntry, Movie, MonthlyRating,
+        DiaryEntry, DiaryFilter, DirectorStat, FeedEntry, MonthlyRating, Movie, Review,
-        Review, ReviewHistory, ReviewSource, SortDirection, UserStats, UserTrends,
+        ReviewHistory, ReviewSource, SortDirection, UserStats, UserTrends,
         collections::{PageParams, Paginated},
     },
     ports::{DiaryRepository, MovieRepository, ReviewRepository, StatsRepository},
@@ -17,20 +17,31 @@ mod models;
 mod users;
 
 use models::{
-    DiaryRow, DirectorCountRow, FeedRow, MonthlyRatingRow, MovieRow, ReviewRow,
+    DiaryRow, DirectorCountRow, FeedRow, MonthlyRatingRow, MovieRow, ReviewRow, UserTotalsRow,
-    UserTotalsRow, datetime_to_str,
+    datetime_to_str,
 };
 
 pub use users::SqliteUserRepository;
 
 fn format_year_month(ym: &str) -> String {
     let parts: Vec<&str> = ym.splitn(2, '-').collect();
-    if parts.len() != 2 { return ym.to_string(); }
+    if parts.len() != 2 {
+        return ym.to_string();
+    }
     let year = parts[0].get(2..).unwrap_or(parts[0]);
     let month = match parts[1] {
-        "01" => "Jan", "02" => "Feb", "03" => "Mar", "04" => "Apr",
+        "01" => "Jan",
-        "05" => "May", "06" => "Jun", "07" => "Jul", "08" => "Aug",
+        "02" => "Feb",
-        "09" => "Sep", "10" => "Oct", "11" => "Nov", "12" => "Dec",
+        "03" => "Mar",
+        "04" => "Apr",
+        "05" => "May",
+        "06" => "Jun",
+        "07" => "Jul",
+        "08" => "Aug",
+        "09" => "Sep",
+        "10" => "Oct",
+        "11" => "Nov",
+        "12" => "Dec",
         _ => parts[1],
     };
     format!("{} '{}", month, year)
@@ -60,12 +71,10 @@ impl SqliteMovieRepository {
                 .fetch_one(&self.pool)
                 .await
                 .map_err(Self::map_err),
-            Some(id) => {
+            Some(id) => sqlx::query_scalar!("SELECT COUNT(*) FROM reviews WHERE movie_id = ?", id)
-                sqlx::query_scalar!("SELECT COUNT(*) FROM reviews WHERE movie_id = ?", id)
+                .fetch_one(&self.pool)
-                    .fetch_one(&self.pool)
+                .await
-                    .await
+                .map_err(Self::map_err),
-                    .map_err(Self::map_err)
-            }
         }
     }
 
@@ -155,13 +164,10 @@ impl SqliteMovieRepository {
     }
 
     async fn count_user_diary_entries(&self, user_id: &str) -> Result<i64, DomainError> {
-        sqlx::query_scalar!(
+        sqlx::query_scalar!("SELECT COUNT(*) FROM reviews WHERE user_id = ?", user_id)
-            "SELECT COUNT(*) FROM reviews WHERE user_id = ?",
+            .fetch_one(&self.pool)
-            user_id
+            .await
-        )
+            .map_err(Self::map_err)
-        .fetch_one(&self.pool)
-        .await
-        .map_err(Self::map_err)
     }
 
     async fn fetch_user_diary_rows_by_watched(
@@ -215,11 +221,7 @@ impl SqliteMovieRepository {
             .map_err(Self::map_err)
     }
 
-    async fn fetch_feed_rows(
+    async fn fetch_feed_rows(&self, limit: i64, offset: i64) -> Result<Vec<FeedRow>, DomainError> {
-        &self,
-        limit: i64,
-        offset: i64,
-    ) -> Result<Vec<FeedRow>, DomainError> {
         sqlx::query_as!(
             FeedRow,
             r#"SELECT m.id, m.external_metadata_id, m.title, m.release_year, m.director, m.poster_path,
@@ -451,11 +453,21 @@ impl ReviewRepository for SqliteMovieRepository {
             .map_err(Self::map_err)?;
         Ok(())
     }
+
+    async fn get_all_reviews_for_user(
+        &self,
+        _user_id: &UserId,
+    ) -> Result<Vec<Review>, DomainError> {
+        todo!()
+    }
 }
 
 #[async_trait]
 impl DiaryRepository for SqliteMovieRepository {
-    async fn query_diary(&self, filter: &DiaryFilter) -> Result<Paginated<DiaryEntry>, DomainError> {
+    async fn query_diary(
+        &self,
+        filter: &DiaryFilter,
+    ) -> Result<Paginated<DiaryEntry>, DomainError> {
         let limit = filter.page.limit as i64;
         let offset = filter.page.offset as i64;
 
@@ -647,9 +659,16 @@ impl StatsRepository for SqliteMovieRepository {
 
         let top_directors = director_rows
             .into_iter()
-            .map(|d| DirectorStat { director: d.director, count: d.count })
+            .map(|d| DirectorStat {
+                director: d.director,
+                count: d.count,
+            })
             .collect();
 
-        Ok(UserTrends { monthly_ratings, top_directors, max_director_count })
+        Ok(UserTrends {
+            monthly_ratings,
+            top_directors,
+            max_director_count,
+        })
     }
 }

crates/adapters/sqlite/src/users.rs

@@ -2,20 +2,22 @@ use async_trait::async_trait;
 use chrono::Utc;
 use sqlx::SqlitePool;
 
+use super::models::UserSummaryRow;
 use domain::{
     errors::DomainError,
     models::User,
     ports::UserRepository,
     value_objects::{Email, PasswordHash, UserId, Username},
 };
-use super::models::UserSummaryRow;
 
 pub struct SqliteUserRepository {
     pool: SqlitePool,
 }
 
 impl SqliteUserRepository {
-    pub fn new(pool: SqlitePool) -> Self { Self { pool } }
+    pub fn new(pool: SqlitePool) -> Self {
+        Self { pool }
+    }
 
     fn map_err(e: sqlx::Error) -> DomainError {
         tracing::error!("Database error: {:?}", e);
@@ -30,13 +32,18 @@ impl SqliteUserRepository {
     ) -> Result<User, DomainError> {
         let id = uuid::Uuid::parse_str(&id_str)
             .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
-        let email = Email::new(email_str)
+        let email =
-            .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
+            Email::new(email_str).map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
         let username = Username::new(username_str)
             .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
         let hash = PasswordHash::new(hash_str)
             .map_err(|e| DomainError::InfrastructureError(e.to_string()))?;
-        Ok(User::from_persistence(UserId::from_uuid(id), email, username, hash))
+        Ok(User::from_persistence(
+            UserId::from_uuid(id),
+            email,
+            username,
+            hash,
+        ))
     }
 }
 
@@ -52,8 +59,15 @@ impl UserRepository for SqliteUserRepository {
         .await
         .map_err(Self::map_err)?;
 
-        row.map(|r| Self::row_to_user(r.id.unwrap_or_default(), r.email, r.username, r.password_hash))
+        row.map(|r| {
-           .transpose()
+            Self::row_to_user(
+                r.id.unwrap_or_default(),
+                r.email,
+                r.username,
+                r.password_hash,
+            )
+        })
+        .transpose()
     }
 
     async fn find_by_username(&self, username: &Username) -> Result<Option<User>, DomainError> {
@@ -66,18 +80,29 @@ impl UserRepository for SqliteUserRepository {
         .await
         .map_err(Self::map_err)?;
 
-        row.map(|r| Self::row_to_user(r.id.unwrap_or_default(), r.email, r.username, r.password_hash))
+        row.map(|r| {
-           .transpose()
+            Self::row_to_user(
+                r.id.unwrap_or_default(),
+                r.email,
+                r.username,
+                r.password_hash,
+            )
+        })
+        .transpose()
     }
 
     async fn save(&self, user: &User) -> Result<(), DomainError> {
         // Check email uniqueness first (clearer error than INSERT OR IGNORE)
         if self.find_by_email(user.email()).await?.is_some() {
-            return Err(DomainError::ValidationError("Email already registered".into()));
+            return Err(DomainError::ValidationError(
+                "Email already registered".into(),
+            ));
         }
         // Check username uniqueness
         if self.find_by_username(user.username()).await?.is_some() {
-            return Err(DomainError::ValidationError("Username already taken".into()));
+            return Err(DomainError::ValidationError(
+                "Username already taken".into(),
+            ));
         }
 
         let id = user.id().value().to_string();
@@ -107,8 +132,15 @@ impl UserRepository for SqliteUserRepository {
         .await
         .map_err(Self::map_err)?;
 
-        row.map(|r| Self::row_to_user(r.id.unwrap_or_default(), r.email, r.username, r.password_hash))
+        row.map(|r| {
-           .transpose()
+            Self::row_to_user(
+                r.id.unwrap_or_default(),
+                r.email,
+                r.username,
+                r.password_hash,
+            )
+        })
+        .transpose()
     }
 
     async fn list_with_stats(&self) -> Result<Vec<domain::models::UserSummary>, DomainError> {
@@ -175,10 +207,7 @@ mod tests {
         .await
         .unwrap();
 
-        let result = repo
+        let result = repo.find_by_id(&UserId::from_uuid(id)).await.unwrap();
-            .find_by_id(&UserId::from_uuid(id))
-            .await
-            .unwrap();
         assert!(result.is_some());
         assert_eq!(result.unwrap().email().value(), "test@example.com");
     }

crates/adapters/template-askama/src/lib.rs

@@ -1,12 +1,12 @@
-use askama::Template;
-use chrono::Datelike;
 use application::ports::{
     ActivityFeedPageData, FollowersPageData, FollowingPageData, HtmlPageContext, HtmlRenderer,
     LoginPageData, NewReviewPageData, ProfilePageData, RegisterPageData, UsersPageData,
 };
+use askama::Template;
+use chrono::Datelike;
 use domain::models::{
-    DiaryEntry, FeedEntry, MonthActivity, MonthlyRating, ReviewSource, UserStats,
+    DiaryEntry, FeedEntry, MonthActivity, MonthlyRating, ReviewSource, UserStats, UserTrends,
-    UserTrends, collections::Paginated,
+    collections::Paginated,
 };
 
 struct PageItem {
@@ -31,9 +31,17 @@ fn build_page_items(total_pages: u32, current_page: u32) -> Vec<PageItem> {
     let mut items = Vec::new();
     for (i, &p) in pages.iter().enumerate() {
         if i > 0 && p > pages[i - 1] + 1 {
-            items.push(PageItem { number: 0, is_current: false, is_ellipsis: true });
+            items.push(PageItem {
+                number: 0,
+                is_current: false,
+                is_ellipsis: true,
+            });
         }
-        items.push(PageItem { number: p, is_current: p == current_page, is_ellipsis: false });
+        items.push(PageItem {
+            number: p,
+            is_current: p == current_page,
+            is_ellipsis: false,
+        });
     }
     items
 }
@@ -162,40 +170,71 @@ struct HeatmapCell {
 fn relative_time(dt: chrono::NaiveDateTime) -> String {
     let now = chrono::Utc::now().naive_utc();
     let diff = now.signed_duration_since(dt);
-    if diff.num_seconds() <= 0 { return "just now".to_string(); }
+    if diff.num_seconds() <= 0 {
+        return "just now".to_string();
+    }
     let minutes = diff.num_minutes();
     let hours = diff.num_hours();
     let days = diff.num_days();
-    if minutes < 1 { return "just now".to_string(); }
+    if minutes < 1 {
-    if minutes < 60 { return format!("{} min ago", minutes); }
+        return "just now".to_string();
-    if hours < 24 { return format!("{} h ago", hours); }
+    }
-    if days == 1 { return "yesterday".to_string(); }
+    if minutes < 60 {
-    if days < 30 { return format!("{} days ago", days); }
+        return format!("{} min ago", minutes);
+    }
+    if hours < 24 {
+        return format!("{} h ago", hours);
+    }
+    if days == 1 {
+        return "yesterday".to_string();
+    }
+    if days < 30 {
+        return format!("{} days ago", days);
+    }
     dt.format("%b %-d, %Y").to_string()
 }
 
 fn build_heatmap(history: &[MonthActivity]) -> Vec<HeatmapCell> {
     let current_year = chrono::Utc::now().year();
     let count_for = |m: &str| -> i64 {
-        history.iter().find(|a| a.year_month == format!("{}-{}", current_year, m))
+        history
+            .iter()
+            .find(|a| a.year_month == format!("{}-{}", current_year, m))
             .map(|a| a.count)
             .unwrap_or(0)
     };
     let months = [
-        ("01", "Jan"), ("02", "Feb"), ("03", "Mar"), ("04", "Apr"),
+        ("01", "Jan"),
-        ("05", "May"), ("06", "Jun"), ("07", "Jul"), ("08", "Aug"),
+        ("02", "Feb"),
-        ("09", "Sep"), ("10", "Oct"), ("11", "Nov"), ("12", "Dec"),
+        ("03", "Mar"),
+        ("04", "Apr"),
+        ("05", "May"),
+        ("06", "Jun"),
+        ("07", "Jul"),
+        ("08", "Aug"),
+        ("09", "Sep"),
+        ("10", "Oct"),
+        ("11", "Nov"),
+        ("12", "Dec"),
     ];
     let counts: Vec<i64> = months.iter().map(|(m, _)| count_for(m)).collect();
     let max = counts.iter().copied().max().unwrap_or(0).max(1);
-    months.iter().zip(counts.iter()).map(|((_, label), &count)| {
+    months
-        let alpha = if count == 0 { 0.05 } else { 0.15 + 0.75 * (count as f64 / max as f64) };
+        .iter()
-        HeatmapCell {
+        .zip(counts.iter())
-            month_label: label.to_string(),
+        .map(|((_, label), &count)| {
-            count,
+            let alpha = if count == 0 {
-            alpha,
+                0.05
-        }
+            } else {
-    }).collect()
+                0.15 + 0.75 * (count as f64 / max as f64)
+            };
+            HeatmapCell {
+                month_label: label.to_string(),
+                count,
+                alpha,
+            }
+        })
+        .collect()
 }
 
 fn bar_height_px(avg_rating: f64) -> i64 {
@@ -211,7 +250,11 @@ impl AskamaHtmlRenderer {
 }
 
 impl HtmlRenderer for AskamaHtmlRenderer {
-    fn render_diary_page(&self, data: &Paginated<DiaryEntry>, ctx: HtmlPageContext) -> Result<String, String> {
+    fn render_diary_page(
+        &self,
+        data: &Paginated<DiaryEntry>,
+        ctx: HtmlPageContext,
+    ) -> Result<String, String> {
         let has_more = (data.offset + data.limit) < data.total_count as u32;
         let (total_pages, current_page) = if data.limit > 0 {
             let tp = ((data.total_count + data.limit as u64 - 1) / data.limit as u64) as u32;
@@ -262,8 +305,14 @@ impl HtmlRenderer for AskamaHtmlRenderer {
         let limit = data.limit;
         let total_pages = if limit > 0 {
             ((data.entries.total_count + limit as u64 - 1) / limit as u64) as u32
-        } else { 0 };
+        } else {
-        let current_page = if limit > 0 { data.current_offset / limit } else { 0 };
+            0
+        };
+        let current_page = if limit > 0 {
+            data.current_offset / limit
+        } else {
+            0
+        };
         ActivityFeedTemplate {
             entries: &data.entries.items,
             current_offset: data.current_offset,
@@ -277,21 +326,30 @@ impl HtmlRenderer for AskamaHtmlRenderer {
     }
 
     fn render_users_page(&self, data: UsersPageData) -> Result<String, String> {
-        let users: Vec<UserSummaryView> = data.users.iter().map(|u| {
+        let users: Vec<UserSummaryView> = data
-            let email = u.email();
+            .users
-            let display_name = email.split('@').next().unwrap_or(email).to_string();
+            .iter()
-            let initial = display_name.chars().next().unwrap_or('?').to_ascii_uppercase();
+            .map(|u| {
-            let avg_rating_display = u.avg_rating
+                let email = u.email();
-                .map(|r| format!("{:.1}", r))
+                let display_name = email.split('@').next().unwrap_or(email).to_string();
-                .unwrap_or_else(|| "—".to_string());
+                let initial = display_name
-            UserSummaryView {
+                    .chars()
-                user_id: u.user_id.value(),
+                    .next()
-                display_name,
+                    .unwrap_or('?')
-                initial,
+                    .to_ascii_uppercase();
-                avg_rating_display,
+                let avg_rating_display = u
-                total_movies: u.total_movies,
+                    .avg_rating
-            }
+                    .map(|r| format!("{:.1}", r))
-        }).collect();
+                    .unwrap_or_else(|| "—".to_string());
+                UserSummaryView {
+                    user_id: u.user_id.value(),
+                    display_name,
+                    initial,
+                    avg_rating_display,
+                    total_movies: u.total_movies,
+                }
+            })
+            .collect();
         UsersTemplate {
             users,
             ctx: &data.ctx,
@@ -301,29 +359,60 @@ impl HtmlRenderer for AskamaHtmlRenderer {
     }
 
     fn render_profile_page(&self, data: ProfilePageData) -> Result<String, String> {
-        let heatmap = data.history.as_deref()
+        let heatmap = data
+            .history
+            .as_deref()
             .map(|h| build_heatmap(h))
             .unwrap_or_default();
-        let profile_display_name = data.profile_user_email
+        let profile_display_name = data
-            .split('@').next().unwrap_or(&data.profile_user_email).to_string();
+            .profile_user_email
-        let monthly_rating_rows: Vec<MonthlyRatingRow<'_>> = data.trends.as_ref()
+            .split('@')
-            .map(|t| t.monthly_ratings.iter().map(|r| MonthlyRatingRow {
+            .next()
-                bar_height_px: bar_height_px(r.avg_rating),
+            .unwrap_or(&data.profile_user_email)
-                rating: r,
+            .to_string();
-            }).collect())
+        let monthly_rating_rows: Vec<MonthlyRatingRow<'_>> = data
+            .trends
+            .as_ref()
+            .map(|t| {
+                t.monthly_ratings
+                    .iter()
+                    .map(|r| MonthlyRatingRow {
+                        bar_height_px: bar_height_px(r.avg_rating),
+                        rating: r,
+                    })
+                    .collect()
+            })
             .unwrap_or_default();
-        let total_pages = data.entries.as_ref()
+        let total_pages = data
-            .map(|e| if e.limit > 0 { ((e.total_count + e.limit as u64 - 1) / e.limit as u64) as u32 } else { 0 })
+            .entries
+            .as_ref()
+            .map(|e| {
+                if e.limit > 0 {
+                    ((e.total_count + e.limit as u64 - 1) / e.limit as u64) as u32
+                } else {
+                    0
+                }
+            })
             .unwrap_or(0);
-        let current_page = if data.limit > 0 { data.current_offset / data.limit } else { 0 };
+        let current_page = if data.limit > 0 {
-        let avg_rating_display = data.stats.avg_rating
+            data.current_offset / data.limit
+        } else {
+            0
+        };
+        let avg_rating_display = data
+            .stats
+            .avg_rating
             .map(|r| format!("{:.1}", r))
             .unwrap_or_else(|| "—".to_string());
-        let favorite_director_display = data.stats.favorite_director
+        let favorite_director_display = data
+            .stats
+            .favorite_director
             .as_deref()
             .unwrap_or("—")
             .to_string();
-        let most_active_month_display = data.stats.most_active_month
+        let most_active_month_display = data
+            .stats
+            .most_active_month
             .as_deref()
             .unwrap_or("—")
             .to_string();
@@ -349,11 +438,15 @@ impl HtmlRenderer for AskamaHtmlRenderer {
             error: data.error,
             following_count: data.following_count,
             followers_count: data.followers_count,
-            pending_followers: data.pending_followers.into_iter().map(|a| RemoteActorData {
+            pending_followers: data
-                handle: a.handle,
+                .pending_followers
-                url: a.url,
+                .into_iter()
-                display_name: a.display_name,
+                .map(|a| RemoteActorData {
-            }).collect(),
+                    handle: a.handle,
+                    url: a.url,
+                    display_name: a.display_name,
+                })
+                .collect(),
         }
         .render()
         .map_err(|e| e.to_string())
@@ -363,11 +456,15 @@ impl HtmlRenderer for AskamaHtmlRenderer {
         FollowingTemplate {
             ctx: data.ctx,
             user_id: data.user_id,
-            actors: data.actors.into_iter().map(|a| RemoteActorData {
+            actors: data
-                handle: a.handle,
+                .actors
-                display_name: a.display_name,
+                .into_iter()
-                url: a.url,
+                .map(|a| RemoteActorData {
-            }).collect(),
+                    handle: a.handle,
+                    display_name: a.display_name,
+                    url: a.url,
+                })
+                .collect(),
             error: data.error,
         }
         .render()
@@ -378,11 +475,15 @@ impl HtmlRenderer for AskamaHtmlRenderer {
         FollowersTemplate {
             ctx: data.ctx,
             user_id: data.user_id,
-            actors: data.actors.into_iter().map(|a| RemoteActorData {
+            actors: data
-                handle: a.handle,
+                .actors
-                display_name: a.display_name,
+                .into_iter()
-                url: a.url,
+                .map(|a| RemoteActorData {
-            }).collect(),
+                    handle: a.handle,
+                    display_name: a.display_name,
+                    url: a.url,
+                })
+                .collect(),
             error: data.error,
         }
         .render()

crates/adapters/template-askama/templates/profile.html

@@ -58,6 +58,11 @@
     </ul>
   </section>
   {% endif %}
+  <section class="export-section">
+    <h3>Export diary</h3>
+    <a href="/diary/export?format=csv">Download CSV</a>
+    <a href="/diary/export?format=json">Download JSON</a>
+  </section>
   {% endif %}
 
   <div class="view-tabs">

crates/application/src/config.rs

@@ -10,12 +10,16 @@ impl AppConfig {
         let allow_registration = std::env::var("ALLOW_REGISTRATION")
             .map(|v| v == "true" || v == "1")
             .unwrap_or(false);
-        let base_url = std::env::var("BASE_URL")
+        let base_url =
-            .unwrap_or_else(|_| "http://localhost:3000".to_string());
+            std::env::var("BASE_URL").unwrap_or_else(|_| "http://localhost:3000".to_string());
         let rate_limit = std::env::var("RATE_LIMIT")
             .ok()
             .and_then(|v| v.parse().ok())
             .unwrap_or(20);
-        Self { allow_registration, base_url, rate_limit }
+        Self {
+            allow_registration,
+            base_url,
+            rate_limit,
+        }
     }
 }

crates/application/src/context.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
 use domain::ports::{
-    AuthService, DiaryRepository, EventPublisher, MetadataClient, MovieRepository,
+    AuthService, DiaryExporter, DiaryRepository, EventPublisher, MetadataClient, MovieRepository,
     PasswordHasher, PosterFetcherClient, PosterStorage, ReviewRepository, StatsRepository,
     UserRepository,
 };
@@ -13,6 +13,7 @@ pub struct AppContext {
     pub movie_repository: Arc<dyn MovieRepository>,
     pub review_repository: Arc<dyn ReviewRepository>,
     pub diary_repository: Arc<dyn DiaryRepository>,
+    pub diary_exporter: Arc<dyn DiaryExporter>,
     pub stats_repository: Arc<dyn StatsRepository>,
     pub metadata_client: Arc<dyn MetadataClient>,
     pub poster_fetcher: Arc<dyn PosterFetcherClient>,

crates/application/src/movie_resolver.rs

@@ -207,29 +207,80 @@ mod tests {
 
     #[async_trait]
     impl MovieRepository for RepoWithExternalMovie {
-        async fn get_movie_by_external_id(&self, _: &ExternalMetadataId) -> Result<Option<Movie>, DomainError> { Ok(Some(self.0.clone())) }
+        async fn get_movie_by_external_id(
-        async fn get_movie_by_id(&self, _: &MovieId) -> Result<Option<Movie>, DomainError> { panic!("unexpected") }
+            &self,
-        async fn get_movies_by_title_and_year(&self, _: &MovieTitle, _: &ReleaseYear) -> Result<Vec<Movie>, DomainError> { panic!("unexpected") }
+            _: &ExternalMetadataId,
-        async fn upsert_movie(&self, _: &Movie) -> Result<(), DomainError> { panic!("unexpected") }
+        ) -> Result<Option<Movie>, DomainError> {
-        async fn delete_movie(&self, _: &MovieId) -> Result<(), DomainError> { panic!("unexpected") }
+            Ok(Some(self.0.clone()))
+        }
+        async fn get_movie_by_id(&self, _: &MovieId) -> Result<Option<Movie>, DomainError> {
+            panic!("unexpected")
+        }
+        async fn get_movies_by_title_and_year(
+            &self,
+            _: &MovieTitle,
+            _: &ReleaseYear,
+        ) -> Result<Vec<Movie>, DomainError> {
+            panic!("unexpected")
+        }
+        async fn upsert_movie(&self, _: &Movie) -> Result<(), DomainError> {
+            panic!("unexpected")
+        }
+        async fn delete_movie(&self, _: &MovieId) -> Result<(), DomainError> {
+            panic!("unexpected")
+        }
     }
 
     #[async_trait]
     impl MovieRepository for RepoEmpty {
-        async fn get_movie_by_external_id(&self, _: &ExternalMetadataId) -> Result<Option<Movie>, DomainError> { Ok(None) }
+        async fn get_movie_by_external_id(
-        async fn get_movie_by_id(&self, _: &MovieId) -> Result<Option<Movie>, DomainError> { panic!("unexpected") }
+            &self,
-        async fn get_movies_by_title_and_year(&self, _: &MovieTitle, _: &ReleaseYear) -> Result<Vec<Movie>, DomainError> { Ok(vec![]) }
+            _: &ExternalMetadataId,
-        async fn upsert_movie(&self, _: &Movie) -> Result<(), DomainError> { panic!("unexpected") }
+        ) -> Result<Option<Movie>, DomainError> {
-        async fn delete_movie(&self, _: &MovieId) -> Result<(), DomainError> { panic!("unexpected") }
+            Ok(None)
+        }
+        async fn get_movie_by_id(&self, _: &MovieId) -> Result<Option<Movie>, DomainError> {
+            panic!("unexpected")
+        }
+        async fn get_movies_by_title_and_year(
+            &self,
+            _: &MovieTitle,
+            _: &ReleaseYear,
+        ) -> Result<Vec<Movie>, DomainError> {
+            Ok(vec![])
+        }
+        async fn upsert_movie(&self, _: &Movie) -> Result<(), DomainError> {
+            panic!("unexpected")
+        }
+        async fn delete_movie(&self, _: &MovieId) -> Result<(), DomainError> {
+            panic!("unexpected")
+        }
     }
 
     #[async_trait]
     impl MovieRepository for RepoWithTitleMatch {
-        async fn get_movie_by_external_id(&self, _: &ExternalMetadataId) -> Result<Option<Movie>, DomainError> { panic!("unexpected") }
+        async fn get_movie_by_external_id(
-        async fn get_movie_by_id(&self, _: &MovieId) -> Result<Option<Movie>, DomainError> { panic!("unexpected") }
+            &self,
-        async fn get_movies_by_title_and_year(&self, _: &MovieTitle, _: &ReleaseYear) -> Result<Vec<Movie>, DomainError> { Ok(vec![self.0.clone()]) }
+            _: &ExternalMetadataId,
-        async fn upsert_movie(&self, _: &Movie) -> Result<(), DomainError> { panic!("unexpected") }
+        ) -> Result<Option<Movie>, DomainError> {
-        async fn delete_movie(&self, _: &MovieId) -> Result<(), DomainError> { panic!("unexpected") }
+            panic!("unexpected")
+        }
+        async fn get_movie_by_id(&self, _: &MovieId) -> Result<Option<Movie>, DomainError> {
+            panic!("unexpected")
+        }
+        async fn get_movies_by_title_and_year(
+            &self,
+            _: &MovieTitle,
+            _: &ReleaseYear,
+        ) -> Result<Vec<Movie>, DomainError> {
+            Ok(vec![self.0.clone()])
+        }
+        async fn upsert_movie(&self, _: &Movie) -> Result<(), DomainError> {
+            panic!("unexpected")
+        }
+        async fn delete_movie(&self, _: &MovieId) -> Result<(), DomainError> {
+            panic!("unexpected")
+        }
     }
 
     struct MetaReturnsMovie(Movie);
@@ -257,7 +308,9 @@ mod tests {
             &self,
             _: &MetadataSearchCriteria,
         ) -> Result<Movie, DomainError> {
-            Err(DomainError::InfrastructureError("metadata unavailable".into()))
+            Err(DomainError::InfrastructureError(
+                "metadata unavailable".into(),
+            ))
         }
         async fn get_poster_url(
             &self,

crates/application/src/ports.rs

@@ -1,6 +1,9 @@
 use uuid::Uuid;
 
-use domain::models::{DiaryEntry, FeedEntry, MonthActivity, UserStats, UserSummary, UserTrends, collections::Paginated};
+use domain::models::{
+    DiaryEntry, FeedEntry, MonthActivity, UserStats, UserSummary, UserTrends,
+    collections::Paginated,
+};
 
 pub struct RemoteActorView {
     pub handle: String,
@@ -85,7 +88,11 @@ pub struct FollowersPageData {
 }
 
 pub trait HtmlRenderer: Send + Sync {
-    fn render_diary_page(&self, data: &Paginated<DiaryEntry>, ctx: HtmlPageContext) -> Result<String, String>;
+    fn render_diary_page(
+        &self,
+        data: &Paginated<DiaryEntry>,
+        ctx: HtmlPageContext,
+    ) -> Result<String, String>;
     fn render_login_page(&self, data: LoginPageData<'_>) -> Result<String, String>;
     fn render_register_page(&self, data: RegisterPageData<'_>) -> Result<String, String>;
     fn render_new_review_page(&self, data: NewReviewPageData<'_>) -> Result<String, String>;

crates/application/src/use_cases/delete_review.rs

@@ -1,5 +1,8 @@
-use domain::{errors::DomainError, value_objects::{ReviewId, UserId}};
 use crate::{commands::DeleteReviewCommand, context::AppContext};
+use domain::{
+    errors::DomainError,
+    value_objects::{ReviewId, UserId},
+};
 
 pub async fn execute(ctx: &AppContext, cmd: DeleteReviewCommand) -> Result<(), DomainError> {
     let review_id = ReviewId::from_uuid(cmd.review_id);

crates/application/src/use_cases/export_diary.rs

@@ -1,23 +1,13 @@
-use std::sync::Arc;
+use domain::{errors::DomainError, value_objects::UserId};
 
-use domain::{
+use crate::{commands::ExportCommand, context::AppContext};
-    errors::DomainError,
-    ports::{DiaryExporter, DiaryRepository},
-};
 
-use crate::commands::ExportCommand;
+pub async fn execute(ctx: &AppContext, cmd: ExportCommand) -> Result<Vec<u8>, DomainError> {
-
+    let entries = ctx
-pub struct ExportDiary {
+        .diary_repository
-    repository: Arc<dyn DiaryRepository>,
+        .get_user_history(&UserId::from_uuid(cmd.user_id))
-    exporter: Arc<dyn DiaryExporter>,
+        .await?;
-}
+    ctx.diary_exporter
-
+        .serialize_entries(&entries, cmd.format)
-impl ExportDiary {
+        .await
-    pub async fn execute(&self, req: ExportCommand) -> Result<Vec<u8>, DomainError> {
-        // 1. fetch all diary entries for the user
-        // 2. delegate serialization to the port (exporter)
-
-        // Return bytes of the exported diary, which can be written to a file or returned in an HTTP response
-        Ok(vec![])
-    }
 }

crates/application/src/use_cases/get_activity_feed.rs

@@ -1,8 +1,11 @@
+use crate::{context::AppContext, queries::GetActivityFeedQuery};
 use domain::{
     errors::DomainError,
-    models::{FeedEntry, collections::{PageParams, Paginated}},
+    models::{
+        FeedEntry,
+        collections::{PageParams, Paginated},
+    },
 };
-use crate::{context::AppContext, queries::GetActivityFeedQuery};
 
 pub async fn execute(
     ctx: &AppContext,

crates/application/src/use_cases/get_user_profile.rs

@@ -1,3 +1,7 @@
+use crate::{
+    context::AppContext,
+    queries::{GetUserProfileQuery, ProfileView},
+};
 use chrono::Datelike;
 use domain::{
     errors::DomainError,
@@ -7,7 +11,6 @@ use domain::{
     },
     value_objects::UserId,
 };
-use crate::{context::AppContext, queries::{GetUserProfileQuery, ProfileView}};
 
 pub struct UserProfileData {
     pub stats: UserStats,
@@ -27,26 +30,61 @@ pub async fn execute(
         ProfileView::History => {
             let all_entries = ctx.diary_repository.get_user_history(&user_id).await?;
             let history = group_by_month(all_entries);
-            Ok(UserProfileData { stats, entries: None, history: Some(history), trends: None })
+            Ok(UserProfileData {
+                stats,
+                entries: None,
+                history: Some(history),
+                trends: None,
+            })
         }
         ProfileView::Trends => {
             let trends = ctx.stats_repository.get_user_trends(&user_id).await?;
-            Ok(UserProfileData { stats, entries: None, history: None, trends: Some(trends) })
+            Ok(UserProfileData {
+                stats,
+                entries: None,
+                history: None,
+                trends: Some(trends),
+            })
         }
         ProfileView::Ratings => {
-            let filter = paged_user_filter(user_id, SortDirection::ByRatingDesc, query.limit, query.offset)?;
+            let filter = paged_user_filter(
+                user_id,
+                SortDirection::ByRatingDesc,
+                query.limit,
+                query.offset,
+            )?;
             let entries = ctx.diary_repository.query_diary(&filter).await?;
-            Ok(UserProfileData { stats, entries: Some(entries), history: None, trends: None })
+            Ok(UserProfileData {
+                stats,
+                entries: Some(entries),
+                history: None,
+                trends: None,
+            })
         }
         ProfileView::Recent => {
-            let filter = paged_user_filter(user_id, SortDirection::Descending, query.limit, query.offset)?;
+            let filter = paged_user_filter(
+                user_id,
+                SortDirection::Descending,
+                query.limit,
+                query.offset,
+            )?;
             let entries = ctx.diary_repository.query_diary(&filter).await?;
-            Ok(UserProfileData { stats, entries: Some(entries), history: None, trends: None })
+            Ok(UserProfileData {
+                stats,
+                entries: Some(entries),
+                history: None,
+                trends: None,
+            })
         }
     }
 }
 
-fn paged_user_filter(user_id: UserId, sort_by: SortDirection, limit: Option<u32>, offset: Option<u32>) -> Result<DiaryFilter, DomainError> {
+fn paged_user_filter(
+    user_id: UserId,
+    sort_by: SortDirection,
+    limit: Option<u32>,
+    offset: Option<u32>,
+) -> Result<DiaryFilter, DomainError> {
     let page = PageParams::new(limit, offset)?;
     Ok(DiaryFilter {
         sort_by,
@@ -81,11 +119,22 @@ fn group_by_month(entries: Vec<DiaryEntry>) -> Vec<MonthActivity> {
 
 fn format_year_month_long(ym: &str) -> String {
     let parts: Vec<&str> = ym.splitn(2, '-').collect();
-    if parts.len() != 2 { return ym.to_string(); }
+    if parts.len() != 2 {
+        return ym.to_string();
+    }
     let month = match parts[1] {
-        "01" => "January", "02" => "February", "03" => "March", "04" => "April",
+        "01" => "January",
-        "05" => "May", "06" => "June", "07" => "July", "08" => "August",
+        "02" => "February",
-        "09" => "September", "10" => "October", "11" => "November", "12" => "December",
+        "03" => "March",
+        "04" => "April",
+        "05" => "May",
+        "06" => "June",
+        "07" => "July",
+        "08" => "August",
+        "09" => "September",
+        "10" => "October",
+        "11" => "November",
+        "12" => "December",
         _ => parts[1],
     };
     format!("{} {}", month, parts[0])

crates/application/src/use_cases/get_users.rs

@@ -1,5 +1,5 @@
-use domain::{errors::DomainError, models::UserSummary};
 use crate::{context::AppContext, queries::GetUsersQuery};
+use domain::{errors::DomainError, models::UserSummary};
 
 pub async fn execute(
     ctx: &AppContext,

crates/application/src/use_cases/log_review.rs

@@ -20,7 +20,9 @@ pub async fn execute(ctx: &AppContext, cmd: LogReviewCommand) -> Result<(), Doma
         repository: ctx.movie_repository.as_ref(),
         metadata_client: ctx.metadata_client.as_ref(),
     };
-    let (movie, is_new_movie) = MovieResolver::default_pipeline().resolve(&cmd, &deps).await?;
+    let (movie, is_new_movie) = MovieResolver::default_pipeline()
+        .resolve(&cmd, &deps)
+        .await?;
 
     ctx.movie_repository.upsert_movie(&movie).await?;
 

crates/application/src/use_cases/register.rs

@@ -1,4 +1,8 @@
-use domain::{errors::DomainError, models::User, value_objects::{Email, Username}};
+use domain::{
+    errors::DomainError,
+    models::User,
+    value_objects::{Email, Username},
+};
 
 use crate::{commands::RegisterCommand, context::AppContext};
 
@@ -19,13 +23,24 @@ pub async fn execute(ctx: &AppContext, cmd: RegisterCommand) -> Result<(), Domai
     let username = Username::new(cmd.username)?;
 
     if ctx.user_repository.find_by_email(&email).await?.is_some() {
-        return Err(DomainError::ValidationError("Email already registered".into()));
+        return Err(DomainError::ValidationError(
+            "Email already registered".into(),
+        ));
     }
 
-    if ctx.user_repository.find_by_username(&username).await?.is_some() {
+    if ctx
-        return Err(DomainError::ValidationError("Username already taken".into()));
+        .user_repository
+        .find_by_username(&username)
+        .await?
+        .is_some()
+    {
+        return Err(DomainError::ValidationError(
+            "Username already taken".into(),
+        ));
     }
 
     let hash = ctx.password_hasher.hash(&cmd.password).await?;
-    ctx.user_repository.save(&User::new(email, username, hash)).await
+    ctx.user_repository
+        .save(&User::new(email, username, hash))
+        .await
 }

crates/domain/src/ports.rs

@@ -5,8 +5,8 @@ use crate::{
     errors::DomainError,
     events::DomainEvent,
     models::{
-        DiaryEntry, DiaryFilter, FeedEntry, Movie, Review, ReviewHistory, User, UserStats,
+        DiaryEntry, DiaryFilter, ExportFormat, FeedEntry, Movie, Review, ReviewHistory, User,
-        UserSummary, UserTrends,
+        UserStats, UserSummary, UserTrends,
         collections::{PageParams, Paginated},
     },
     value_objects::{
@@ -36,12 +36,17 @@ pub trait ReviewRepository: Send + Sync {
     async fn save_review(&self, review: &Review) -> Result<DomainEvent, DomainError>;
     async fn get_review_by_id(&self, review_id: &ReviewId) -> Result<Option<Review>, DomainError>;
     async fn delete_review(&self, review_id: &ReviewId) -> Result<(), DomainError>;
+    async fn get_all_reviews_for_user(&self, user_id: &UserId) -> Result<Vec<Review>, DomainError>;
 }
 
 #[async_trait]
 pub trait DiaryRepository: Send + Sync {
-    async fn query_diary(&self, filter: &DiaryFilter) -> Result<Paginated<DiaryEntry>, DomainError>;
+    async fn query_diary(&self, filter: &DiaryFilter)
-    async fn query_activity_feed(&self, page: &PageParams) -> Result<Paginated<FeedEntry>, DomainError>;
+    -> Result<Paginated<DiaryEntry>, DomainError>;
+    async fn query_activity_feed(
+        &self,
+        page: &PageParams,
+    ) -> Result<Paginated<FeedEntry>, DomainError>;
     async fn get_review_history(&self, movie_id: &MovieId) -> Result<ReviewHistory, DomainError>;
     async fn get_user_history(&self, user_id: &UserId) -> Result<Vec<DiaryEntry>, DomainError>;
 }
@@ -122,7 +127,11 @@ pub trait PasswordHasher: Send + Sync {
 
 #[async_trait]
 pub trait DiaryExporter: Send + Sync {
-    async fn serialize_reviews(&self, reviews: &[Review]) -> Result<Vec<u8>, DomainError>;
+    async fn serialize_entries(
+        &self,
+        entries: &[DiaryEntry],
+        format: ExportFormat,
+    ) -> Result<Vec<u8>, DomainError>;
 }
 
 #[async_trait]

crates/domain/src/value_objects.rs

@@ -184,10 +184,18 @@ impl Username {
         let s = raw.trim().to_lowercase();
         if s.len() < Self::MIN_LENGTH || s.len() > Self::MAX_LENGTH {
             return Err(DomainError::ValidationError(
-                format!("Username must be {}–{} characters", Self::MIN_LENGTH, Self::MAX_LENGTH).into(),
+                format!(
+                    "Username must be {}–{} characters",
+                    Self::MIN_LENGTH,
+                    Self::MAX_LENGTH
+                )
+                .into(),
             ));
         }
-        if !s.chars().all(|c| c.is_ascii_alphanumeric() || c == '_' || c == '-') {
+        if !s
+            .chars()
+            .all(|c| c.is_ascii_alphanumeric() || c == '_' || c == '-')
+        {
             return Err(DomainError::ValidationError(
                 "Username may only contain letters, digits, underscores, and hyphens".into(),
             ));

crates/presentation/Cargo.toml

@@ -32,6 +32,7 @@ sqlx = { workspace = true }
 template-askama = { workspace = true }
 event-publisher = { workspace = true }
 rss = { workspace = true }
+export = { workspace = true }
 infer = "0.19.0"
 percent-encoding = "2"
 

crates/presentation/src/dtos.rs

@@ -259,6 +259,16 @@ pub struct ProfileQueryParams {
     pub error: Option<String>,
 }
 
+#[derive(serde::Deserialize)]
+pub struct ExportQueryParams {
+    #[serde(default = "default_export_format")]
+    pub format: String,
+}
+
+fn default_export_format() -> String {
+    "csv".to_string()
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -345,7 +355,10 @@ mod tests {
             movie_id: None,
         };
         let query = GetDiaryQuery::from(params);
-        assert!(matches!(query.sort_by, Some(domain::models::SortDirection::Ascending)));
+        assert!(matches!(
+            query.sort_by,
+            Some(domain::models::SortDirection::Ascending)
+        ));
     }
 
     #[test]
@@ -357,7 +370,10 @@ mod tests {
             movie_id: None,
         };
         let query = GetDiaryQuery::from(params);
-        assert!(matches!(query.sort_by, Some(domain::models::SortDirection::Descending)));
+        assert!(matches!(
+            query.sort_by,
+            Some(domain::models::SortDirection::Descending)
+        ));
     }
 
     #[test]

crates/presentation/src/event_handlers.rs

@@ -2,8 +2,8 @@ use std::time::Duration;
 
 use application::{commands::SyncPosterCommand, context::AppContext, use_cases::sync_poster};
 use async_trait::async_trait;
-use domain::{errors::DomainError, events::DomainEvent};
 use domain::ports::EventHandler;
+use domain::{errors::DomainError, events::DomainEvent};
 
 pub struct PosterSyncHandler {
     ctx: AppContext,

crates/presentation/src/extractors.rs

@@ -28,11 +28,7 @@ where
                     "Missing or invalid auth token".into(),
                 ))
             })?;
-        let user_id = app_state
+        let user_id = app_state.app_ctx.auth_service.validate_token(token).await?;
-            .app_ctx
-            .auth_service
-            .validate_token(token)
-            .await?;
         Ok(AuthenticatedUser(user_id))
     }
 }
@@ -98,28 +94,32 @@ where
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::sync::Arc;
+    use application::{config::AppConfig, context::AppContext};
     use axum::{
+        Router,
         body::Body,
         http::{Request, StatusCode},
         routing::get,
-        Router,
     };
-    use application::{config::AppConfig, context::AppContext};
     use domain::{
         errors::DomainError,
         events::DomainEvent,
-        models::{DiaryEntry, DiaryFilter, FeedEntry, Movie, Review, ReviewHistory, UserStats, UserTrends, collections::{PageParams, Paginated}},
+        models::{
+            DiaryEntry, DiaryFilter, FeedEntry, Movie, Review, ReviewHistory, UserStats,
+            UserTrends,
+            collections::{PageParams, Paginated},
+        },
         ports::{
             AuthService, DiaryRepository, EventPublisher, GeneratedToken, MetadataClient,
-            MovieRepository, PasswordHasher, PosterFetcherClient, PosterStorage,
+            MovieRepository, PasswordHasher, PosterFetcherClient, PosterStorage, ReviewRepository,
-            ReviewRepository, StatsRepository, UserRepository,
+            StatsRepository, UserRepository,
         },
         value_objects::{
             Email, ExternalMetadataId, MovieId, MovieTitle, PasswordHash, PosterPath, PosterUrl,
             ReleaseYear, ReviewId, UserId,
         },
     };
+    use std::sync::Arc;
     use tower::ServiceExt;
 
     // --- Panic stubs (defined once) ---
@@ -128,82 +128,232 @@ mod tests {
 
     #[async_trait::async_trait]
     impl MovieRepository for Panic {
-        async fn get_movie_by_external_id(&self, _: &ExternalMetadataId) -> Result<Option<Movie>, DomainError> { panic!() }
+        async fn get_movie_by_external_id(
-        async fn get_movie_by_id(&self, _: &MovieId) -> Result<Option<Movie>, DomainError> { panic!() }
+            &self,
-        async fn get_movies_by_title_and_year(&self, _: &MovieTitle, _: &ReleaseYear) -> Result<Vec<Movie>, DomainError> { panic!() }
+            _: &ExternalMetadataId,
-        async fn upsert_movie(&self, _: &Movie) -> Result<(), DomainError> { panic!() }
+        ) -> Result<Option<Movie>, DomainError> {
-        async fn delete_movie(&self, _: &MovieId) -> Result<(), DomainError> { panic!() }
+            panic!()
+        }
+        async fn get_movie_by_id(&self, _: &MovieId) -> Result<Option<Movie>, DomainError> {
+            panic!()
+        }
+        async fn get_movies_by_title_and_year(
+            &self,
+            _: &MovieTitle,
+            _: &ReleaseYear,
+        ) -> Result<Vec<Movie>, DomainError> {
+            panic!()
+        }
+        async fn upsert_movie(&self, _: &Movie) -> Result<(), DomainError> {
+            panic!()
+        }
+        async fn delete_movie(&self, _: &MovieId) -> Result<(), DomainError> {
+            panic!()
+        }
     }
     #[async_trait::async_trait]
     impl ReviewRepository for Panic {
-        async fn save_review(&self, _: &Review) -> Result<DomainEvent, DomainError> { panic!() }
+        async fn save_review(&self, _: &Review) -> Result<DomainEvent, DomainError> {
-        async fn get_review_by_id(&self, _: &ReviewId) -> Result<Option<Review>, DomainError> { panic!() }
+            panic!()
-        async fn delete_review(&self, _: &ReviewId) -> Result<(), DomainError> { panic!() }
+        }
+        async fn get_review_by_id(&self, _: &ReviewId) -> Result<Option<Review>, DomainError> {
+            panic!()
+        }
+        async fn delete_review(&self, _: &ReviewId) -> Result<(), DomainError> {
+            panic!()
+        }
+        async fn get_all_reviews_for_user(&self, _: &UserId) -> Result<Vec<Review>, DomainError> {
+            panic!()
+        }
     }
     #[async_trait::async_trait]
     impl DiaryRepository for Panic {
-        async fn query_diary(&self, _: &DiaryFilter) -> Result<Paginated<DiaryEntry>, DomainError> { panic!() }
+        async fn query_diary(&self, _: &DiaryFilter) -> Result<Paginated<DiaryEntry>, DomainError> {
-        async fn query_activity_feed(&self, _: &PageParams) -> Result<Paginated<FeedEntry>, DomainError> { panic!() }
+            panic!()
-        async fn get_review_history(&self, _: &MovieId) -> Result<ReviewHistory, DomainError> { panic!() }
+        }
-        async fn get_user_history(&self, _: &UserId) -> Result<Vec<DiaryEntry>, DomainError> { panic!() }
+        async fn query_activity_feed(
+            &self,
+            _: &PageParams,
+        ) -> Result<Paginated<FeedEntry>, DomainError> {
+            panic!()
+        }
+        async fn get_review_history(&self, _: &MovieId) -> Result<ReviewHistory, DomainError> {
+            panic!()
+        }
+        async fn get_user_history(&self, _: &UserId) -> Result<Vec<DiaryEntry>, DomainError> {
+            panic!()
+        }
     }
     #[async_trait::async_trait]
     impl StatsRepository for Panic {
-        async fn get_user_stats(&self, _: &UserId) -> Result<UserStats, DomainError> { panic!() }
+        async fn get_user_stats(&self, _: &UserId) -> Result<UserStats, DomainError> {
-        async fn get_user_trends(&self, _: &UserId) -> Result<UserTrends, DomainError> { panic!() }
+            panic!()
+        }
+        async fn get_user_trends(&self, _: &UserId) -> Result<UserTrends, DomainError> {
+            panic!()
+        }
     }
     #[async_trait::async_trait]
     impl MetadataClient for Panic {
-        async fn fetch_movie_metadata(&self, _: &domain::ports::MetadataSearchCriteria) -> Result<Movie, DomainError> { panic!() }
+        async fn fetch_movie_metadata(
-        async fn get_poster_url(&self, _: &ExternalMetadataId) -> Result<Option<PosterUrl>, DomainError> { panic!() }
+            &self,
+            _: &domain::ports::MetadataSearchCriteria,
+        ) -> Result<Movie, DomainError> {
+            panic!()
+        }
+        async fn get_poster_url(
+            &self,
+            _: &ExternalMetadataId,
+        ) -> Result<Option<PosterUrl>, DomainError> {
+            panic!()
+        }
     }
     #[async_trait::async_trait]
-    impl PosterFetcherClient for Panic { async fn fetch_poster_bytes(&self, _: &PosterUrl) -> Result<Vec<u8>, DomainError> { panic!() } }
+    impl PosterFetcherClient for Panic {
+        async fn fetch_poster_bytes(&self, _: &PosterUrl) -> Result<Vec<u8>, DomainError> {
+            panic!()
+        }
+    }
     #[async_trait::async_trait]
     impl PosterStorage for Panic {
-        async fn store_poster(&self, _: &MovieId, _: &[u8]) -> Result<PosterPath, DomainError> { panic!() }
+        async fn store_poster(&self, _: &MovieId, _: &[u8]) -> Result<PosterPath, DomainError> {
-        async fn get_poster(&self, _: &PosterPath) -> Result<Vec<u8>, DomainError> { panic!() }
+            panic!()
+        }
+        async fn get_poster(&self, _: &PosterPath) -> Result<Vec<u8>, DomainError> {
+            panic!()
+        }
     }
     #[async_trait::async_trait]
     impl AuthService for Panic {
-        async fn generate_token(&self, _: &UserId) -> Result<GeneratedToken, DomainError> { panic!() }
+        async fn generate_token(&self, _: &UserId) -> Result<GeneratedToken, DomainError> {
-        async fn validate_token(&self, _: &str) -> Result<UserId, DomainError> { panic!() }
+            panic!()
+        }
+        async fn validate_token(&self, _: &str) -> Result<UserId, DomainError> {
+            panic!()
+        }
     }
     #[async_trait::async_trait]
     impl PasswordHasher for Panic {
-        async fn hash(&self, _: &str) -> Result<PasswordHash, DomainError> { panic!() }
+        async fn hash(&self, _: &str) -> Result<PasswordHash, DomainError> {
-        async fn verify(&self, _: &str, _: &PasswordHash) -> Result<bool, DomainError> { panic!() }
+            panic!()
+        }
+        async fn verify(&self, _: &str, _: &PasswordHash) -> Result<bool, DomainError> {
+            panic!()
+        }
     }
     #[async_trait::async_trait]
     impl UserRepository for Panic {
-        async fn find_by_email(&self, _: &Email) -> Result<Option<domain::models::User>, DomainError> { panic!() }
+        async fn find_by_email(
-        async fn save(&self, _: &domain::models::User) -> Result<(), DomainError> { panic!() }
+            &self,
-        async fn find_by_id(&self, _: &UserId) -> Result<Option<domain::models::User>, DomainError> { panic!() }
+            _: &Email,
-        async fn find_by_username(&self, _: &domain::value_objects::Username) -> Result<Option<domain::models::User>, DomainError> { panic!() }
+        ) -> Result<Option<domain::models::User>, DomainError> {
-        async fn list_with_stats(&self) -> Result<Vec<domain::models::UserSummary>, DomainError> { panic!() }
+            panic!()
+        }
+        async fn save(&self, _: &domain::models::User) -> Result<(), DomainError> {
+            panic!()
+        }
+        async fn find_by_id(
+            &self,
+            _: &UserId,
+        ) -> Result<Option<domain::models::User>, DomainError> {
+            panic!()
+        }
+        async fn find_by_username(
+            &self,
+            _: &domain::value_objects::Username,
+        ) -> Result<Option<domain::models::User>, DomainError> {
+            panic!()
+        }
+        async fn list_with_stats(&self) -> Result<Vec<domain::models::UserSummary>, DomainError> {
+            panic!()
+        }
     }
     #[async_trait::async_trait]
-    impl EventPublisher for Panic { async fn publish(&self, _: &DomainEvent) -> Result<(), DomainError> { panic!() } }
+    impl EventPublisher for Panic {
+        async fn publish(&self, _: &DomainEvent) -> Result<(), DomainError> {
+            panic!()
+        }
+    }
+    #[async_trait::async_trait]
+    impl domain::ports::DiaryExporter for Panic {
+        async fn serialize_entries(
+            &self,
+            _: &[domain::models::DiaryEntry],
+            _: domain::models::ExportFormat,
+        ) -> Result<Vec<u8>, domain::errors::DomainError> {
+            panic!()
+        }
+    }
 
     impl crate::ports::HtmlRenderer for Panic {
-        fn render_diary_page(&self, _: &Paginated<DiaryEntry>, _: application::ports::HtmlPageContext) -> Result<String, String> { panic!() }
+        fn render_diary_page(
-        fn render_login_page(&self, _: application::ports::LoginPageData<'_>) -> Result<String, String> { panic!() }
+            &self,
-        fn render_register_page(&self, _: application::ports::RegisterPageData<'_>) -> Result<String, String> { panic!() }
+            _: &Paginated<DiaryEntry>,
-        fn render_new_review_page(&self, _: application::ports::NewReviewPageData<'_>) -> Result<String, String> { panic!() }
+            _: application::ports::HtmlPageContext,
-        fn render_activity_feed_page(&self, _: application::ports::ActivityFeedPageData) -> Result<String, String> { panic!() }
+        ) -> Result<String, String> {
-        fn render_users_page(&self, _: application::ports::UsersPageData) -> Result<String, String> { panic!() }
+            panic!()
-        fn render_profile_page(&self, _: application::ports::ProfilePageData) -> Result<String, String> { panic!() }
+        }
-        fn render_following_page(&self, _: application::ports::FollowingPageData) -> Result<String, String> { panic!() }
+        fn render_login_page(
-        fn render_followers_page(&self, _: application::ports::FollowersPageData) -> Result<String, String> { panic!() }
+            &self,
+            _: application::ports::LoginPageData<'_>,
+        ) -> Result<String, String> {
+            panic!()
+        }
+        fn render_register_page(
+            &self,
+            _: application::ports::RegisterPageData<'_>,
+        ) -> Result<String, String> {
+            panic!()
+        }
+        fn render_new_review_page(
+            &self,
+            _: application::ports::NewReviewPageData<'_>,
+        ) -> Result<String, String> {
+            panic!()
+        }
+        fn render_activity_feed_page(
+            &self,
+            _: application::ports::ActivityFeedPageData,
+        ) -> Result<String, String> {
+            panic!()
+        }
+        fn render_users_page(
+            &self,
+            _: application::ports::UsersPageData,
+        ) -> Result<String, String> {
+            panic!()
+        }
+        fn render_profile_page(
+            &self,
+            _: application::ports::ProfilePageData,
+        ) -> Result<String, String> {
+            panic!()
+        }
+        fn render_following_page(
+            &self,
+            _: application::ports::FollowingPageData,
+        ) -> Result<String, String> {
+            panic!()
+        }
+        fn render_followers_page(
+            &self,
+            _: application::ports::FollowersPageData,
+        ) -> Result<String, String> {
+            panic!()
+        }
     }
     impl crate::ports::RssFeedRenderer for Panic {
-        fn render_feed(&self, _: &[DiaryEntry], _: &str) -> Result<String, String> { panic!() }
+        fn render_feed(&self, _: &[DiaryEntry], _: &str) -> Result<String, String> {
+            panic!()
+        }
     }
 
     struct RejectingAuth;
     #[async_trait::async_trait]
     impl AuthService for RejectingAuth {
-        async fn generate_token(&self, _: &UserId) -> Result<GeneratedToken, DomainError> { panic!() }
+        async fn generate_token(&self, _: &UserId) -> Result<GeneratedToken, DomainError> {
+            panic!()
+        }
         async fn validate_token(&self, _: &str) -> Result<UserId, DomainError> {
             Err(DomainError::Unauthorized("bad token".into()))
         }
@@ -218,6 +368,7 @@ mod tests {
                 movie_repository: Arc::clone(&repo) as _,
                 review_repository: Arc::clone(&repo) as _,
                 diary_repository: Arc::clone(&repo) as _,
+                diary_exporter: Arc::clone(&repo) as _,
                 stats_repository: Arc::clone(&repo) as _,
                 metadata_client: Arc::clone(&repo) as _,
                 poster_fetcher: Arc::clone(&repo) as _,
@@ -226,7 +377,11 @@ mod tests {
                 password_hasher: Arc::clone(&repo) as _,
                 user_repository: Arc::clone(&repo) as _,
                 auth_service,
-                config: AppConfig { allow_registration: false, base_url: "http://localhost:3000".to_string(), rate_limit: 20 },
+                config: AppConfig {
+                    allow_registration: false,
+                    base_url: "http://localhost:3000".to_string(),
+                    rate_limit: 20,
+                },
             },
             html_renderer: Arc::new(Panic),
             rss_renderer: Arc::new(Panic),
@@ -236,47 +391,103 @@ mod tests {
 
     // --- Routers ---
 
-    async fn protected_handler(user: AuthenticatedUser) -> String { user.0.value().to_string() }
+    async fn protected_handler(user: AuthenticatedUser) -> String {
-    async fn optional_cookie_handler(user: OptionalCookieUser) -> String {
+        user.0.value().to_string()
-        match user.0 { Some(id) => id.value().to_string(), None => "none".to_string() }
+    }
+    async fn optional_cookie_handler(user: OptionalCookieUser) -> String {
+        match user.0 {
+            Some(id) => id.value().to_string(),
+            None => "none".to_string(),
+        }
+    }
+    async fn required_cookie_handler(user: RequiredCookieUser) -> String {
+        user.0.value().to_string()
     }
-    async fn required_cookie_handler(user: RequiredCookieUser) -> String { user.0.value().to_string() }
 
-    fn router_protected(state: crate::state::AppState) -> Router { Router::new().route("/protected", get(protected_handler)).with_state(state) }
+    fn router_protected(state: crate::state::AppState) -> Router {
-    fn router_optional(state: crate::state::AppState) -> Router { Router::new().route("/optional", get(optional_cookie_handler)).with_state(state) }
+        Router::new()
-    fn router_required(state: crate::state::AppState) -> Router { Router::new().route("/required", get(required_cookie_handler)).with_state(state) }
+            .route("/protected", get(protected_handler))
+            .with_state(state)
+    }
+    fn router_optional(state: crate::state::AppState) -> Router {
+        Router::new()
+            .route("/optional", get(optional_cookie_handler))
+            .with_state(state)
+    }
+    fn router_required(state: crate::state::AppState) -> Router {
+        Router::new()
+            .route("/required", get(required_cookie_handler))
+            .with_state(state)
+    }
 
     // --- Tests ---
 
     #[tokio::test]
     async fn missing_auth_header_returns_401() {
         let app = router_protected(make_test_state(Arc::new(Panic)));
-        let resp = app.oneshot(Request::builder().uri("/protected").body(Body::empty()).unwrap()).await.unwrap();
+        let resp = app
+            .oneshot(
+                Request::builder()
+                    .uri("/protected")
+                    .body(Body::empty())
+                    .unwrap(),
+            )
+            .await
+            .unwrap();
         assert_eq!(resp.status(), StatusCode::UNAUTHORIZED);
     }
 
     #[tokio::test]
     async fn optional_cookie_user_returns_none_without_cookie() {
         let app = router_optional(make_test_state(Arc::new(Panic)));
-        let resp = app.oneshot(Request::builder().uri("/optional").body(Body::empty()).unwrap()).await.unwrap();
+        let resp = app
+            .oneshot(
+                Request::builder()
+                    .uri("/optional")
+                    .body(Body::empty())
+                    .unwrap(),
+            )
+            .await
+            .unwrap();
         assert_eq!(resp.status(), StatusCode::OK);
-        let body = axum::body::to_bytes(resp.into_body(), usize::MAX).await.unwrap();
+        let body = axum::body::to_bytes(resp.into_body(), usize::MAX)
+            .await
+            .unwrap();
         assert_eq!(&body[..], b"none");
     }
 
     #[tokio::test]
     async fn optional_cookie_user_returns_none_with_invalid_token() {
         let app = router_optional(make_test_state(Arc::new(RejectingAuth)));
-        let resp = app.oneshot(Request::builder().uri("/optional").header("cookie", "token=bad.token.here").body(Body::empty()).unwrap()).await.unwrap();
+        let resp = app
+            .oneshot(
+                Request::builder()
+                    .uri("/optional")
+                    .header("cookie", "token=bad.token.here")
+                    .body(Body::empty())
+                    .unwrap(),
+            )
+            .await
+            .unwrap();
         assert_eq!(resp.status(), StatusCode::OK);
-        let body = axum::body::to_bytes(resp.into_body(), usize::MAX).await.unwrap();
+        let body = axum::body::to_bytes(resp.into_body(), usize::MAX)
+            .await
+            .unwrap();
         assert_eq!(&body[..], b"none");
     }
 
     #[tokio::test]
     async fn required_cookie_user_redirects_without_cookie() {
         let app = router_required(make_test_state(Arc::new(Panic)));
-        let resp = app.oneshot(Request::builder().uri("/required").body(Body::empty()).unwrap()).await.unwrap();
+        let resp = app
+            .oneshot(
+                Request::builder()
+                    .uri("/required")
+                    .body(Body::empty())
+                    .unwrap(),
+            )
+            .await
+            .unwrap();
         assert_eq!(resp.status(), StatusCode::SEE_OTHER);
         assert_eq!(resp.headers().get("location").unwrap(), "/login");
     }
@@ -284,7 +495,16 @@ mod tests {
     #[tokio::test]
     async fn required_cookie_user_redirects_with_invalid_token() {
         let app = router_required(make_test_state(Arc::new(RejectingAuth)));
-        let resp = app.oneshot(Request::builder().uri("/required").header("cookie", "token=bad.token.here").body(Body::empty()).unwrap()).await.unwrap();
+        let resp = app
+            .oneshot(
+                Request::builder()
+                    .uri("/required")
+                    .header("cookie", "token=bad.token.here")
+                    .body(Body::empty())
+                    .unwrap(),
+            )
+            .await
+            .unwrap();
         assert_eq!(resp.status(), StatusCode::SEE_OTHER);
         assert_eq!(resp.headers().get("location").unwrap(), "/login");
     }

crates/presentation/src/handlers.rs

@@ -14,13 +14,17 @@ pub mod html {
     use uuid::Uuid;
 
     use application::{
-        commands::{DeleteReviewCommand, LoginCommand, RegisterCommand},
+        commands::{DeleteReviewCommand, ExportCommand, LoginCommand, RegisterCommand},
         ports::{
             FollowersPageData, FollowingPageData, HtmlPageContext, LoginPageData,
             NewReviewPageData, RegisterPageData, RemoteActorView,
         },
-        use_cases::{delete_review, log_review, login as login_uc, register as register_uc},
+        use_cases::{
+            delete_review, export_diary as export_diary_uc, log_review, login as login_uc,
+            register as register_uc,
+        },
     };
+    use domain::models::ExportFormat;
     use domain::{errors::DomainError, value_objects::UserId};
 
     use crate::{
@@ -265,6 +269,45 @@ pub mod html {
         }
     }
 
+    pub async fn get_export(
+        State(state): State<AppState>,
+        RequiredCookieUser(user_id): RequiredCookieUser,
+        Query(params): Query<crate::dtos::ExportQueryParams>,
+    ) -> impl IntoResponse {
+        let format = match params.format.as_str() {
+            "csv" => ExportFormat::Csv,
+            "json" => ExportFormat::Json,
+            _ => return StatusCode::BAD_REQUEST.into_response(),
+        };
+        let (content_type, filename) = match &format {
+            ExportFormat::Csv => ("text/csv; charset=utf-8", "diary.csv"),
+            ExportFormat::Json => ("application/json", "diary.json"),
+        };
+        let cmd = ExportCommand {
+            user_id: user_id.value(),
+            format,
+        };
+        match export_diary_uc::execute(&state.app_ctx, cmd).await {
+            Ok(bytes) => (
+                StatusCode::OK,
+                [
+                    (axum::http::header::CONTENT_TYPE, content_type.to_string()),
+                    (
+                        axum::http::header::CONTENT_DISPOSITION,
+                        format!("attachment; filename=\"{}\"", filename),
+                    ),
+                ],
+                bytes,
+            )
+                .into_response(),
+            Err(DomainError::Unauthorized(_)) => StatusCode::FORBIDDEN.into_response(),
+            Err(e) => {
+                tracing::error!("export error: {:?}", e);
+                StatusCode::INTERNAL_SERVER_ERROR.into_response()
+            }
+        }
+    }
+
     pub async fn get_activity_feed(
         OptionalCookieUser(user_id): OptionalCookieUser,
         State(state): State<AppState>,

crates/presentation/src/lib.rs

@@ -1,6 +1,6 @@
-pub mod event_handlers;
 pub mod dtos;
 pub mod errors;
+pub mod event_handlers;
 pub mod extractors;
 pub mod handlers;
 pub mod ports;

crates/presentation/src/main.rs

@@ -10,15 +10,19 @@ use sqlx::sqlite::SqliteConnectOptions;
 use tokio::net::TcpListener;
 use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
 
+use activitypub::{
+    ActivityPubEventHandler, ActivityPubPort, ActivityPubService, DomainUserRepoAdapter,
+    ReviewObjectHandler,
+};
 use application::{config::AppConfig, context::AppContext};
-use auth::{AuthConfig, Argon2PasswordHasher, JwtAuthService};
+use auth::{Argon2PasswordHasher, AuthConfig, JwtAuthService};
+use export::ExportAdapter;
 use metadata::MetadataClientImpl;
 use poster_fetcher::{PosterFetcherConfig, ReqwestPosterFetcher};
 use poster_storage::{PosterStorageAdapter, StorageConfig};
-use activitypub::{ActivityPubEventHandler, ActivityPubPort, ActivityPubService, DomainUserRepoAdapter, ReviewObjectHandler};
+use rss::RssAdapter;
 use sqlite::{SqliteMovieRepository, SqliteUserRepository};
 use sqlite_federation::SqliteFederationRepository;
-use rss::RssAdapter;
 use template_askama::AskamaHtmlRenderer;
 
 use presentation::{routes, state::AppState};
@@ -68,18 +72,23 @@ async fn wire_dependencies() -> anyhow::Result<(AppState, axum::Router)> {
         .context("Database migration failed")?;
 
     use domain::ports::{
-        AuthService, DiaryRepository, MetadataClient, MovieRepository, PasswordHasher,
+        AuthService, DiaryExporter, DiaryRepository, MetadataClient, MovieRepository,
-        PosterFetcherClient, PosterStorage, ReviewRepository, StatsRepository, UserRepository,
+        PasswordHasher, PosterFetcherClient, PosterStorage, ReviewRepository, StatsRepository,
+        UserRepository,
     };
-    let movie_repository: Arc<dyn MovieRepository>  = Arc::clone(&sqlite_repo) as _;
+    let movie_repository: Arc<dyn MovieRepository> = Arc::clone(&sqlite_repo) as _;
     let review_repository: Arc<dyn ReviewRepository> = Arc::clone(&sqlite_repo) as _;
-    let diary_repository: Arc<dyn DiaryRepository>  = Arc::clone(&sqlite_repo) as _;
+    let diary_repository: Arc<dyn DiaryRepository> = Arc::clone(&sqlite_repo) as _;
-    let stats_repository: Arc<dyn StatsRepository>  = Arc::clone(&sqlite_repo) as _;
+    let stats_repository: Arc<dyn StatsRepository> = Arc::clone(&sqlite_repo) as _;
 
-    let user_repository: Arc<dyn UserRepository> = Arc::new(SqliteUserRepository::new(pool.clone()));
+    let user_repository: Arc<dyn UserRepository> =
-    let metadata_client: Arc<dyn MetadataClient> = Arc::new(MetadataClientImpl::new_omdb(omdb_api_key));
+        Arc::new(SqliteUserRepository::new(pool.clone()));
-    let poster_fetcher: Arc<dyn PosterFetcherClient> = Arc::new(ReqwestPosterFetcher::new(PosterFetcherConfig::from_env())?);
+    let metadata_client: Arc<dyn MetadataClient> =
-    let poster_storage: Arc<dyn PosterStorage> = Arc::new(PosterStorageAdapter::from_config(storage_config));
+        Arc::new(MetadataClientImpl::new_omdb(omdb_api_key));
+    let poster_fetcher: Arc<dyn PosterFetcherClient> =
+        Arc::new(ReqwestPosterFetcher::new(PosterFetcherConfig::from_env())?);
+    let poster_storage: Arc<dyn PosterStorage> =
+        Arc::new(PosterStorageAdapter::from_config(storage_config));
     let auth_service: Arc<dyn AuthService> = Arc::new(JwtAuthService::new(auth_config));
     let password_hasher: Arc<dyn PasswordHasher> = Arc::new(Argon2PasswordHasher);
 
@@ -89,6 +98,7 @@ async fn wire_dependencies() -> anyhow::Result<(AppState, axum::Router)> {
         movie_repository: Arc::clone(&movie_repository),
         review_repository: Arc::clone(&review_repository),
         diary_repository: Arc::clone(&diary_repository),
+        diary_exporter: Arc::new(ExportAdapter) as Arc<dyn DiaryExporter>,
         stats_repository: Arc::clone(&stats_repository),
         metadata_client: Arc::clone(&metadata_client),
         poster_fetcher: Arc::clone(&poster_fetcher),
@@ -139,6 +149,7 @@ async fn wire_dependencies() -> anyhow::Result<(AppState, axum::Router)> {
         movie_repository,
         review_repository,
         diary_repository,
+        diary_exporter: Arc::new(ExportAdapter) as Arc<dyn DiaryExporter>,
         stats_repository,
         metadata_client,
         poster_fetcher,

crates/presentation/src/routes.rs

@@ -36,7 +36,11 @@ impl RateLimiter {
         let prev = self.window.load(Ordering::Acquire);
         if now != prev {
             // compare_exchange ensures only one thread wins the window reset
-            if self.window.compare_exchange(prev, now, Ordering::AcqRel, Ordering::Relaxed).is_ok() {
+            if self
+                .window
+                .compare_exchange(prev, now, Ordering::AcqRel, Ordering::Relaxed)
+                .is_ok()
+            {
                 self.count.store(1, Ordering::Release);
                 return true;
             }
@@ -130,6 +134,7 @@ fn html_routes(rate_limit: u64) -> Router<AppState> {
             "/posters/{*path}",
             routing::get(handlers::posters::get_poster),
         )
+        .route("/diary/export", routing::get(handlers::html::get_export))
         .route("/feed.rss", routing::get(handlers::rss::get_feed))
         .route(
             "/users/{id}/feed.rss",

crates/presentation/tests/api_test.rs

@@ -21,9 +21,9 @@ use domain::{
 };
 use http_body_util::BodyExt;
 use presentation::{routes, state::AppState};
+use rss::RssAdapter;
 use sqlite::SqliteMovieRepository;
 use sqlx::SqlitePool;
-use rss::RssAdapter;
 use template_askama::AskamaHtmlRenderer;
 use tower::ServiceExt;
 
@@ -41,7 +41,10 @@ impl MetadataClient for PanicMeta {
     async fn fetch_movie_metadata(&self, _: &MetadataSearchCriteria) -> Result<Movie, DomainError> {
         panic!("metadata not wired in tests")
     }
-    async fn get_poster_url(&self, _: &ExternalMetadataId) -> Result<Option<PosterUrl>, DomainError> {
+    async fn get_poster_url(
+        &self,
+        _: &ExternalMetadataId,
+    ) -> Result<Option<PosterUrl>, DomainError> {
         panic!()
     }
 }
@@ -68,25 +71,58 @@ impl PosterStorage for PanicStorage {
 struct PanicHasher;
 #[async_trait]
 impl PasswordHasher for PanicHasher {
-    async fn hash(&self, _: &str) -> Result<PasswordHash, DomainError> { panic!() }
+    async fn hash(&self, _: &str) -> Result<PasswordHash, DomainError> {
-    async fn verify(&self, _: &str, _: &PasswordHash) -> Result<bool, DomainError> { panic!() }
+        panic!()
+    }
+    async fn verify(&self, _: &str, _: &PasswordHash) -> Result<bool, DomainError> {
+        panic!()
+    }
 }
 
 struct PanicAuth;
 #[async_trait]
 impl AuthService for PanicAuth {
-    async fn generate_token(&self, _: &UserId) -> Result<GeneratedToken, DomainError> { panic!() }
+    async fn generate_token(&self, _: &UserId) -> Result<GeneratedToken, DomainError> {
-    async fn validate_token(&self, _: &str) -> Result<UserId, DomainError> { panic!() }
+        panic!()
+    }
+    async fn validate_token(&self, _: &str) -> Result<UserId, DomainError> {
+        panic!()
+    }
 }
 
 struct NobodyUserRepo;
 #[async_trait]
 impl UserRepository for NobodyUserRepo {
-    async fn find_by_email(&self, _: &Email) -> Result<Option<User>, DomainError> { Ok(None) }
+    async fn find_by_email(&self, _: &Email) -> Result<Option<User>, DomainError> {
-    async fn find_by_username(&self, _: &domain::value_objects::Username) -> Result<Option<User>, DomainError> { Ok(None) }
+        Ok(None)
-    async fn save(&self, _: &User) -> Result<(), DomainError> { panic!() }
+    }
-    async fn find_by_id(&self, _: &UserId) -> Result<Option<User>, DomainError> { panic!() }
+    async fn find_by_username(
-    async fn list_with_stats(&self) -> Result<Vec<domain::models::UserSummary>, DomainError> { panic!() }
+        &self,
+        _: &domain::value_objects::Username,
+    ) -> Result<Option<User>, DomainError> {
+        Ok(None)
+    }
+    async fn save(&self, _: &User) -> Result<(), DomainError> {
+        panic!()
+    }
+    async fn find_by_id(&self, _: &UserId) -> Result<Option<User>, DomainError> {
+        panic!()
+    }
+    async fn list_with_stats(&self) -> Result<Vec<domain::models::UserSummary>, DomainError> {
+        panic!()
+    }
+}
+
+struct PanicExporter;
+#[async_trait]
+impl domain::ports::DiaryExporter for PanicExporter {
+    async fn serialize_entries(
+        &self,
+        _: &[domain::models::DiaryEntry],
+        _: domain::models::ExportFormat,
+    ) -> Result<Vec<u8>, DomainError> {
+        panic!()
+    }
 }
 
 async fn test_app() -> Router {
@@ -102,6 +138,7 @@ async fn test_app() -> Router {
             movie_repository: Arc::clone(&repo) as _,
             review_repository: Arc::clone(&repo) as _,
             diary_repository: Arc::clone(&repo) as _,
+            diary_exporter: Arc::new(PanicExporter),
             stats_repository: Arc::clone(&repo) as _,
             metadata_client: Arc::new(PanicMeta),
             poster_fetcher: Arc::new(PanicFetcher),
@@ -110,7 +147,11 @@ async fn test_app() -> Router {
             auth_service: Arc::new(PanicAuth),
             password_hasher: Arc::new(PanicHasher),
             user_repository: Arc::new(NobodyUserRepo),
-            config: AppConfig { allow_registration: false, base_url: "http://localhost:3000".to_string(), rate_limit: 20 },
+            config: AppConfig {
+                allow_registration: false,
+                base_url: "http://localhost:3000".to_string(),
+                rate_limit: 20,
+            },
         },
         html_renderer: Arc::new(AskamaHtmlRenderer::new()),
         rss_renderer: Arc::new(RssAdapter::new("http://localhost:3000".into())),
@@ -124,7 +165,12 @@ async fn test_app() -> Router {
 async fn get_api_diary_returns_empty_list() {
     let app = test_app().await;
     let response = app
-        .oneshot(Request::builder().uri("/api/diary").body(Body::empty()).unwrap())
+        .oneshot(
+            Request::builder()
+                .uri("/api/diary")
+                .body(Body::empty())
+                .unwrap(),
+        )
         .await
         .unwrap();
 

crates/tui/src/client.rs

@@ -123,7 +123,10 @@ impl ApiClient {
         let resp = self
             .http
             .post(format!("{}/api/auth/login", self.url()))
-            .json(&LoginRequest { email: email.into(), password: password.into() })
+            .json(&LoginRequest {
+                email: email.into(),
+                password: password.into(),
+            })
             .send()
             .await?;
         Ok(check_status(resp).await?.json().await?)
@@ -159,11 +162,7 @@ impl ApiClient {
         Ok(check_status(resp).await?.json().await?)
     }
 
-    pub async fn create_review(
+    pub async fn create_review(&self, token: &str, req: &LogReviewRequest) -> Result<(), ApiError> {
-        &self,
-        token: &str,
-        req: &LogReviewRequest,
-    ) -> Result<(), ApiError> {
         let resp = self
             .http
             .post(format!("{}/api/reviews", self.url()))

crates/tui/src/config.rs

@@ -83,7 +83,9 @@ mod tests {
 
     #[test]
     fn config_roundtrip() {
-        let config = Config { api_url: "http://localhost:3000".into() };
+        let config = Config {
+            api_url: "http://localhost:3000".into(),
+        };
         let json = serde_json::to_string(&config).unwrap();
         let decoded: Config = serde_json::from_str(&json).unwrap();
         assert_eq!(decoded.api_url, "http://localhost:3000");

crates/tui/src/main.rs

@@ -4,9 +4,7 @@ use tokio::sync::mpsc;
 
 use ratatui::crossterm::event::{self, Event, KeyCode, KeyModifiers};
 
-use tui::app::{
+use tui::app::{self, Action, App, BulkImportStage, Command, Screen, SettingsField, Tab};
-    self, Action, App, BulkImportStage, Command, Screen, SettingsField, Tab,
-};
 use tui::client::ApiClient;
 use tui::config::Config;
 
@@ -29,9 +27,14 @@ async fn run() -> anyhow::Result<()> {
         }
     }
 
-    let initial_url = config.as_ref().map(|c| c.api_url.as_str()).unwrap_or("http://localhost:3000");
+    let initial_url = config
+        .as_ref()
+        .map(|c| c.api_url.as_str())
+        .unwrap_or("http://localhost:3000");
     let client = Arc::new(ApiClient::new(initial_url));
-    let saved_token = tokio::task::spawn_blocking(Config::load_token).await.unwrap_or(None);
+    let saved_token = tokio::task::spawn_blocking(Config::load_token)
+        .await
+        .unwrap_or(None);
     let mut app = App::new(config, saved_token.clone());
 
     let (tx, mut rx) = mpsc::channel::<Action>(64);
@@ -45,7 +48,10 @@ async fn run() -> anyhow::Result<()> {
             let tx2 = tx.clone();
             tokio::spawn(async move {
                 let action = match c.get_diary(&t, 0, 20).await {
-                    Ok(r) => Action::DiaryLoaded { entries: r.items, total: r.total_count },
+                    Ok(r) => Action::DiaryLoaded {
+                        entries: r.items,
+                        total: r.total_count,
+                    },
                     Err(e) => Action::DiaryLoadFailed(e.to_string()),
                 };
                 let _ = tx2.send(action).await;
@@ -84,7 +90,8 @@ async fn run() -> anyhow::Result<()> {
             }
         }
         Ok::<(), anyhow::Error>(())
-    }.await;
+    }
+    .await;
 
     ratatui::restore();
     result
@@ -95,11 +102,15 @@ async fn run() -> anyhow::Result<()> {
 fn handle_command(cmd: Command, app: &App, client: &Arc<ApiClient>, tx: &mpsc::Sender<Action>) {
     match cmd {
         Command::SaveConfig(url) => {
-            let config = Config { api_url: url.clone() };
+            let config = Config {
+                api_url: url.clone(),
+            };
             if let Err(e) = config.save() {
                 let tx2 = tx.clone();
                 let msg = format!("Failed to save config: {e}");
-                tokio::spawn(async move { let _ = tx2.send(Action::DiaryLoadFailed(msg)).await; });
+                tokio::spawn(async move {
+                    let _ = tx2.send(Action::DiaryLoadFailed(msg)).await;
+                });
             }
             client.update_url(&url);
         }
@@ -136,12 +147,17 @@ fn handle_command(cmd: Command, app: &App, client: &Arc<ApiClient>, tx: &mpsc::S
         }
 
         Command::LoadDiary { offset } => {
-            let Some(token) = app.token.clone() else { return };
+            let Some(token) = app.token.clone() else {
+                return;
+            };
             let c = client.clone();
             let tx = tx.clone();
             tokio::spawn(async move {
                 let action = match c.get_diary(&token, offset, 20).await {
-                    Ok(r) => Action::DiaryLoaded { entries: r.items, total: r.total_count },
+                    Ok(r) => Action::DiaryLoaded {
+                        entries: r.items,
+                        total: r.total_count,
+                    },
                     Err(e) => Action::DiaryLoadFailed(e.to_string()),
                 };
                 let _ = tx.send(action).await;
@@ -149,7 +165,9 @@ fn handle_command(cmd: Command, app: &App, client: &Arc<ApiClient>, tx: &mpsc::S
         }
 
         Command::LoadHistory { movie_id } => {
-            let Some(token) = app.token.clone() else { return };
+            let Some(token) = app.token.clone() else {
+                return;
+            };
             let c = client.clone();
             let tx = tx.clone();
             tokio::spawn(async move {
@@ -162,7 +180,9 @@ fn handle_command(cmd: Command, app: &App, client: &Arc<ApiClient>, tx: &mpsc::S
         }
 
         Command::CreateReview(req) => {
-            let Some(token) = app.token.clone() else { return };
+            let Some(token) = app.token.clone() else {
+                return;
+            };
             let c = client.clone();
             let tx = tx.clone();
             tokio::spawn(async move {
@@ -175,7 +195,9 @@ fn handle_command(cmd: Command, app: &App, client: &Arc<ApiClient>, tx: &mpsc::S
         }
 
         Command::DeleteReview(id) => {
-            let Some(token) = app.token.clone() else { return };
+            let Some(token) = app.token.clone() else {
+                return;
+            };
             let c = client.clone();
             let tx = tx.clone();
             tokio::spawn(async move {
@@ -188,7 +210,9 @@ fn handle_command(cmd: Command, app: &App, client: &Arc<ApiClient>, tx: &mpsc::S
         }
 
         Command::ImportNext(index) => {
-            let Some(token) = app.token.clone() else { return };
+            let Some(token) = app.token.clone() else {
+                return;
+            };
             let req = match &app.screen {
                 Screen::Main(m) => match m.bulk_import.valid_requests.get(index) {
                     Some(r) => r.clone(),
@@ -199,7 +223,11 @@ fn handle_command(cmd: Command, app: &App, client: &Arc<ApiClient>, tx: &mpsc::S
             let c = client.clone();
             let tx = tx.clone();
             tokio::spawn(async move {
-                let error = c.create_review(&token, &req).await.err().map(|e| e.to_string());
+                let error = c
+                    .create_review(&token, &req)
+                    .await
+                    .err()
+                    .map(|e| e.to_string());
                 let _ = tx.send(Action::BulkItemDone { index, error }).await;
             });
         }
@@ -248,8 +276,12 @@ fn key_to_action(app: &App, key: ratatui::crossterm::event::KeyEvent) -> Option<
                 KeyCode::Down | KeyCode::Char('j') => Some(Action::ScrollDown),
                 KeyCode::Enter => Some(Action::OpenHistory),
                 KeyCode::Char('d') => Some(Action::DeleteInit),
-                KeyCode::Char('y') if m.diary.delete_pending.is_some() => Some(Action::DeleteConfirm),
+                KeyCode::Char('y') if m.diary.delete_pending.is_some() => {
-                KeyCode::Char('n') if m.diary.delete_pending.is_some() => Some(Action::DeleteCancel),
+                    Some(Action::DeleteConfirm)
+                }
+                KeyCode::Char('n') if m.diary.delete_pending.is_some() => {
+                    Some(Action::DeleteCancel)
+                }
                 KeyCode::Esc => Some(Action::Escape),
                 KeyCode::Char('q') => Some(Action::Quit),
                 KeyCode::Tab => Some(Action::TabNext),

crates/tui/src/ui.rs

@@ -99,8 +99,20 @@ fn draw_login(frame: &mut Frame, area: Rect, state: &LoginState) {
     .split(popup);
 
     let pass_masked = "*".repeat(state.password.len());
-    render_input(frame, rows[1], "Email", &state.email, state.focused == LoginField::Email);
+    render_input(
-    render_input(frame, rows[3], "Password", &pass_masked, state.focused == LoginField::Password);
+        frame,
+        rows[1],
+        "Email",
+        &state.email,
+        state.focused == LoginField::Email,
+    );
+    render_input(
+        frame,
+        rows[3],
+        "Password",
+        &pass_masked,
+        state.focused == LoginField::Password,
+    );
     frame.render_widget(
         Paragraph::new("Tab: next field   Enter: login").alignment(Alignment::Center),
         rows[4],
@@ -175,9 +187,16 @@ fn draw_diary(frame: &mut Frame, area: Rect, state: &DiaryState) {
     let can_load_prev = state.offset > 0;
     let page = state.offset / 20 + 1;
     let total_pages = state.total.div_ceil(20).max(1);
-    let mut title = format!(" Diary ({} entries, page {}/{}) ", state.total, page, total_pages);
+    let mut title = format!(
-    if can_load_prev { title.push_str("[b: prev] "); }
+        " Diary ({} entries, page {}/{}) ",
-    if can_load_more { title.push_str("[m: next] "); }
+        state.total, page, total_pages
+    );
+    if can_load_prev {
+        title.push_str("[b: prev] ");
+    }
+    if can_load_more {
+        title.push_str("[m: next] ");
+    }
     let mut list_state = ListState::default();
     list_state.select(Some(state.selected));
     let list = List::new(items).block(Block::default().title(title).borders(Borders::ALL));
@@ -273,23 +292,61 @@ fn draw_add_review(frame: &mut Frame, area: Rect, state: &AddReviewState) {
     ])
     .split(inner);
 
-    render_input(frame, rows[0], "External ID (TMDB/OMDB)", &state.external_id, state.focused == AddReviewField::ExternalId);
+    render_input(
-    render_input(frame, rows[1], "Title", &state.title, state.focused == AddReviewField::Title);
+        frame,
-    render_input(frame, rows[2], "Year", &state.year, state.focused == AddReviewField::Year);
+        rows[0],
+        "External ID (TMDB/OMDB)",
+        &state.external_id,
+        state.focused == AddReviewField::ExternalId,
+    );
+    render_input(
+        frame,
+        rows[1],
+        "Title",
+        &state.title,
+        state.focused == AddReviewField::Title,
+    );
+    render_input(
+        frame,
+        rows[2],
+        "Year",
+        &state.year,
+        state.focused == AddReviewField::Year,
+    );
 
     let rating_active = state.focused == AddReviewField::Rating;
     frame.render_widget(
-        Paragraph::new(format!("{}  \u{2190} \u{2192} to adjust", stars(state.rating))).block(
+        Paragraph::new(format!(
+            "{}  \u{2190} \u{2192} to adjust",
+            stars(state.rating)
+        ))
+        .block(
             Block::default()
                 .title("Rating (0-5)")
                 .borders(Borders::ALL)
-                .border_style(if rating_active { Style::default().fg(Color::Yellow) } else { Style::default() }),
+                .border_style(if rating_active {
+                    Style::default().fg(Color::Yellow)
+                } else {
+                    Style::default()
+                }),
         ),
         rows[3],
     );
 
-    render_input(frame, rows[4], "Watched at (YYYY-MM-DDTHH:MM:SS)", &state.watched_at, state.focused == AddReviewField::WatchedAt);
+    render_input(
-    render_input(frame, rows[5], "Comment (optional)", &state.comment, state.focused == AddReviewField::Comment);
+        frame,
+        rows[4],
+        "Watched at (YYYY-MM-DDTHH:MM:SS)",
+        &state.watched_at,
+        state.focused == AddReviewField::WatchedAt,
+    );
+    render_input(
+        frame,
+        rows[5],
+        "Comment (optional)",
+        &state.comment,
+        state.focused == AddReviewField::Comment,
+    );
 
     let submit_style = if state.focused == AddReviewField::Submit {
         Style::default()
@@ -507,7 +564,13 @@ fn draw_settings(frame: &mut Frame, area: Rect, state: &SettingsState) {
     ])
     .split(inner);
 
-    render_input(frame, rows[0], "API URL", &state.api_url, state.focused == SettingsField::ApiUrl);
+    render_input(
+        frame,
+        rows[0],
+        "API URL",
+        &state.api_url,
+        state.focused == SettingsField::ApiUrl,
+    );
 
     let save_style = if state.focused == SettingsField::Save {
         Style::default()
@@ -555,11 +618,22 @@ fn draw_status_bar(frame: &mut Frame, area: Rect, status: Option<&StatusMsg>, lo
 // ── Helpers ───────────────────────────────────────────────────────────────────
 
 fn render_input(frame: &mut Frame, area: Rect, title: &str, value: &str, active: bool) {
-    let text = if active { format!("{value}_") } else { value.to_string() };
+    let text = if active {
-    let border_style = if active { Style::default().fg(Color::Yellow) } else { Style::default() };
+        format!("{value}_")
+    } else {
+        value.to_string()
+    };
+    let border_style = if active {
+        Style::default().fg(Color::Yellow)
+    } else {
+        Style::default()
+    };
     frame.render_widget(
         Paragraph::new(text).block(
-            Block::default().title(title).borders(Borders::ALL).border_style(border_style),
+            Block::default()
+                .title(title)
+                .borders(Borders::ALL)
+                .border_style(border_style),
         ),
         area,
     );