todo: exporter

Co-authored-by: Copilot <copilot@github.com>

Dockerfile

@@ -36,7 +36,11 @@ RUN sqlite3 /build/dev.db \
     sqlite3 /build/dev.db \
       < crates/adapters/sqlite/migrations/0002_users.sql && \
     sqlite3 /build/dev.db \
-      < crates/adapters/sqlite/migrations/0003_activitypub.sql
+      < crates/adapters/sqlite/migrations/0003_activitypub.sql && \
+    sqlite3 /build/dev.db \
+      < crates/adapters/sqlite/migrations/0004_username.sql && \
+    sqlite3 /build/dev.db \
+      < crates/adapters/sqlite/migrations/0005_activitypub_v2.sql
 
 ENV DATABASE_URL=sqlite:///build/dev.db
 

crates/application/src/commands.rs

@@ -1,4 +1,5 @@
 use chrono::NaiveDateTime;
+use domain::models::ExportFormat;
 use uuid::Uuid;
 
 pub struct LogReviewCommand {
@@ -35,3 +36,8 @@ pub struct DeleteReviewCommand {
     pub review_id: Uuid,
     pub requesting_user_id: Uuid,
 }
+
+pub struct ExportCommand {
+    pub user_id: Uuid,
+    pub format: ExportFormat,
+}

crates/application/src/use_cases/export_diary.rs

@@ -0,0 +1,23 @@
+use std::sync::Arc;
+
+use domain::{
+    errors::DomainError,
+    ports::{DiaryExporter, MovieRepository},
+};
+
+use crate::commands::ExportCommand;
+
+pub struct ExportDiary {
+    repository: Arc<dyn MovieRepository>,
+    exporter: Arc<dyn DiaryExporter>,
+}
+
+impl ExportDiary {
+    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/mod.rs

@@ -1,4 +1,5 @@
 pub mod delete_review;
+pub mod export_diary;
 pub mod get_activity_feed;
 pub mod get_diary;
 pub mod get_review_history;

crates/domain/src/models/mod.rs

@@ -262,7 +262,12 @@ pub struct User {
 
 impl User {
     pub fn new(email: Email, username: Username, password_hash: PasswordHash) -> Self {
-        Self { id: UserId::generate(), email, username, password_hash }
+        Self {
+            id: UserId::generate(),
+            email,
+            username,
+            password_hash,
+        }
     }
 
     pub fn from_persistence(
@@ -271,17 +276,30 @@ impl User {
         username: Username,
         password_hash: PasswordHash,
     ) -> Self {
-        Self { id, email, username, password_hash }
+        Self {
+            id,
+            email,
+            username,
+            password_hash,
+        }
     }
 
     pub fn update_password(&mut self, new_hash: PasswordHash) {
         self.password_hash = new_hash;
     }
 
-    pub fn email(&self) -> &Email { &self.email }
-    pub fn username(&self) -> &Username { &self.username }
-    pub fn id(&self) -> &UserId { &self.id }
-    pub fn password_hash(&self) -> &PasswordHash { &self.password_hash }
+    pub fn email(&self) -> &Email {
+        &self.email
+    }
+    pub fn username(&self) -> &Username {
+        &self.username
+    }
+    pub fn id(&self) -> &UserId {
+        &self.id
+    }
+    pub fn password_hash(&self) -> &PasswordHash {
+        &self.password_hash
+    }
 }
 
 #[derive(Clone, Debug)]
@@ -294,11 +312,20 @@ impl FeedEntry {
     pub fn new(entry: DiaryEntry, user_email: String) -> Self {
         Self { entry, user_email }
     }
-    pub fn movie(&self) -> &Movie { self.entry.movie() }
-    pub fn review(&self) -> &Review { self.entry.review() }
-    pub fn user_email(&self) -> &str { &self.user_email }
+    pub fn movie(&self) -> &Movie {
+        self.entry.movie()
+    }
+    pub fn review(&self) -> &Review {
+        self.entry.review()
+    }
+    pub fn user_email(&self) -> &str {
+        &self.user_email
+    }
     pub fn user_display_name(&self) -> &str {
-        self.user_email.split('@').next().unwrap_or(&self.user_email)
+        self.user_email
+            .split('@')
+            .next()
+            .unwrap_or(&self.user_email)
     }
 }
 
@@ -312,9 +339,16 @@ pub struct UserSummary {
 
 impl UserSummary {
     pub fn new(user_id: UserId, email: Email, total_movies: i64, avg_rating: Option<f64>) -> Self {
-        Self { user_id, email, total_movies, avg_rating }
+        Self {
+            user_id,
+            email,
+            total_movies,
+            avg_rating,
+        }
+    }
+    pub fn email(&self) -> &str {
+        self.email.value()
     }
-    pub fn email(&self) -> &str { self.email.value() }
 }
 
 #[derive(Clone, Debug)]
@@ -325,7 +359,6 @@ pub struct UserStats {
     pub most_active_month: Option<String>,
 }
 
-
 #[derive(Clone, Debug)]
 pub struct MonthActivity {
     pub year_month: String,
@@ -354,3 +387,8 @@ pub struct UserTrends {
     pub top_directors: Vec<DirectorStat>,
     pub max_director_count: i64,
 }
+
+pub enum ExportFormat {
+    Csv,
+    Json,
+}

crates/domain/src/ports.rs

@@ -6,7 +6,7 @@ use crate::{
     events::DomainEvent,
     models::{
         DiaryEntry, DiaryFilter, FeedEntry, Movie, Review, ReviewHistory, User, UserStats,
-        UserTrends, UserSummary,
+        UserSummary, UserTrends,
         collections::{PageParams, Paginated},
     },
     value_objects::{
@@ -57,7 +57,10 @@ pub trait MovieRepository: Send + Sync {
 
 pub enum MetadataSearchCriteria {
     ImdbId(ExternalMetadataId),
-    Title { title: MovieTitle, year: Option<ReleaseYear> },
+    Title {
+        title: MovieTitle,
+        year: Option<ReleaseYear>,
+    },
 }
 
 #[async_trait]
@@ -119,3 +122,8 @@ pub trait PasswordHasher: Send + Sync {
 
     async fn verify(&self, plain_password: &str, hash: &PasswordHash) -> Result<bool, DomainError>;
 }
+
+#[async_trait]
+pub trait DiaryExporter: Send + Sync {
+    async fn serialize_reviews(&self, reviews: &[Review]) -> Result<Vec<u8>, DomainError>;
+}