fix: resolve all clippy warnings — redundant closures, dead code, collapsible_if, needless borrow

.githooks/pre-commit

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+echo "→ cargo fmt"
+if ! cargo fmt --all -- --check; then
+    echo "  run 'cargo fmt --all' to fix formatting"
+    exit 1
+fi
+
+echo "→ cargo clippy"
+if ! cargo clippy --workspace -- -D warnings; then
+    exit 1
+fi

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

@@ -237,15 +237,14 @@ impl Activity for UndoActivity {
 
         match obj_type {
             "Follow" => {
-                if let Some(obj_url) = self.object.get("object").and_then(|o| o.as_str()) {
+                if let Some(obj_url) = self.object.get("object").and_then(|o| o.as_str())
-                    if let Ok(url) = Url::parse(obj_url) {
+                    && let Ok(url) = Url::parse(obj_url)
-                        if let Some(user_id) = crate::urls::extract_user_id_from_url(&url) {
+                    && let Some(user_id) = crate::urls::extract_user_id_from_url(&url)
+                {
                     data.federation_repo
                         .remove_follower(user_id, self.actor.inner().as_str())
                         .await?;
                 }
-                    }
-                }
                 data.object_handler
                     .on_actor_removed(self.actor.inner())
                     .await
@@ -260,8 +259,9 @@ impl Activity for UndoActivity {
                     .and_then(|id| id.as_str())
                     .or_else(|| self.object.get("id").and_then(|id| id.as_str()));
 
-                if let Some(ap_id_str) = ap_id_str {
+                if let Some(ap_id_str) = ap_id_str
-                    if let Ok(ap_id) = Url::parse(ap_id_str) {
+                    && let Ok(ap_id) = Url::parse(ap_id_str)
+                {
                     data.object_handler
                         .on_delete(&ap_id, self.actor.inner())
                         .await
@@ -269,7 +269,6 @@ impl Activity for UndoActivity {
                     tracing::info!(ap_id = %ap_id_str, "undo Add (watchlist remove)");
                 }
             }
-            }
             other => {
                 tracing::debug!(kind = %other, "ignoring Undo of unknown activity type");
             }

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

@@ -14,6 +14,7 @@ pub struct FederationData {
     pub(crate) domain: String,
     pub(crate) allow_registration: bool,
     pub(crate) software_name: String,
+    #[allow(dead_code)]
     pub(crate) event_publisher: Option<Arc<dyn EventPublisher>>,
 }
 

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

@@ -107,6 +107,7 @@ pub struct ActivityPubService {
 }
 
 impl ActivityPubService {
+    #[allow(clippy::too_many_arguments)]
     pub async fn new(
         repo: Arc<dyn FederationRepository>,
         user_repo: Arc<dyn ApUserRepository>,
@@ -748,7 +749,7 @@ impl ActivityPubService {
             .await
             .map_err(|e| anyhow::anyhow!("{e}"))?;
         // Wrap with @context so Mastodon's JSON-LD processor can resolve field names.
-        let person_json = serde_json::to_value(&WithContext::new_default(person))?;
+        let person_json = serde_json::to_value(WithContext::new_default(person))?;
 
         let update_id = Url::parse(&format!(
             "{}/activities/update/{}",

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

@@ -22,6 +22,7 @@ pub fn actor_url(base_url: &str, user_id: uuid::Uuid) -> Url {
 }
 
 /// Extract the username segment from a /users/:username URL.
+#[allow(dead_code)]
 pub fn extract_username_from_url(url: &Url) -> Option<String> {
     url.path()
         .strip_prefix("/users/")

crates/adapters/activitypub/src/note.rs

@@ -26,6 +26,7 @@ pub struct ThoughtNote {
 }
 
 impl ThoughtNote {
+    #[allow(clippy::too_many_arguments)]
     pub fn new_public(
         id: Url,
         actor_url: Url,

crates/adapters/postgres-search/src/lib.rs

@@ -81,7 +81,7 @@ fn row_to_entry(r: FeedRow) -> FeedEntry {
         in_reply_to_id: r.in_reply_to_id.map(ThoughtId::from_uuid),
         in_reply_to_url: r.in_reply_to_url,
         ap_id: r.t_ap_id,
-        visibility: Visibility::from_str(&r.visibility),
+        visibility: Visibility::from_db_str(&r.visibility),
         content_warning: r.content_warning,
         sensitive: r.sensitive,
         local: r.t_local,

crates/adapters/postgres/src/feed.rs

@@ -95,7 +95,7 @@ fn row_to_entry(r: FeedRow) -> FeedEntry {
         in_reply_to_id: r.in_reply_to_id.map(ThoughtId::from_uuid),
         in_reply_to_url: r.in_reply_to_url,
         ap_id: r.t_ap_id,
-        visibility: Visibility::from_str(&r.visibility),
+        visibility: Visibility::from_db_str(&r.visibility),
         content_warning: r.content_warning,
         sensitive: r.sensitive,
         local: r.t_local,

crates/adapters/postgres/src/follow.rs

@@ -77,7 +77,7 @@ impl FollowRepository for PgFollowRepository {
         .map(|o| o.map(|r| Follow {
             follower_id: UserId::from_uuid(r.follower_id),
             following_id: UserId::from_uuid(r.following_id),
-            state: FollowState::from_str(&r.state),
+            state: FollowState::from_db_str(&r.state),
             ap_id: r.ap_id,
             created_at: r.created_at,
         }))

crates/adapters/postgres/src/notification.rs

@@ -62,7 +62,7 @@ impl NotificationRepository for PgNotificationRepository {
             .map(|r| Notification {
                 id: NotificationId::from_uuid(r.id),
                 user_id: UserId::from_uuid(r.user_id),
-                notification_type: NotificationType::from_str(&r.r#type),
+                notification_type: NotificationType::from_db_str(&r.r#type),
                 from_user_id: r.from_user_id.map(UserId::from_uuid),
                 thought_id: r.thought_id.map(ThoughtId::from_uuid),
                 read: r.read,

crates/adapters/postgres/src/thought.rs

@@ -45,7 +45,7 @@ impl From<ThoughtRow> for Thought {
             in_reply_to_id: r.in_reply_to_id.map(ThoughtId::from_uuid),
             in_reply_to_url: r.in_reply_to_url,
             ap_id: r.ap_id,
-            visibility: Visibility::from_str(&r.visibility),
+            visibility: Visibility::from_db_str(&r.visibility),
             content_warning: r.content_warning,
             sensitive: r.sensitive,
             local: r.local,

crates/application/src/use_cases/thoughts.rs

@@ -35,7 +35,7 @@ pub async fn create_thought(
     let visibility = input
         .visibility
         .as_deref()
-        .map(Visibility::from_str)
+        .map(Visibility::from_db_str)
         .unwrap_or(Visibility::Public);
     let thought = Thought::new_local(
         ThoughtId::new(),

crates/domain/src/models/notification.rs

@@ -10,7 +10,7 @@ pub enum NotificationType {
     Reply,
 }
 impl NotificationType {
-    pub fn from_str(s: &str) -> Self {
+    pub fn from_db_str(s: &str) -> Self {
         match s {
             "like" => Self::Like,
             "boost" => Self::Boost,

crates/domain/src/models/social.rs

@@ -26,7 +26,7 @@ pub enum FollowState {
     Rejected,
 }
 impl FollowState {
-    pub fn from_str(s: &str) -> Self {
+    pub fn from_db_str(s: &str) -> Self {
         match s {
             "pending" => Self::Pending,
             "rejected" => Self::Rejected,

crates/domain/src/models/thought.rs

@@ -9,7 +9,7 @@ pub enum Visibility {
     Direct,
 }
 impl Visibility {
-    pub fn from_str(s: &str) -> Self {
+    pub fn from_db_str(s: &str) -> Self {
         match s {
             "followers" => Self::Followers,
             "unlisted" => Self::Unlisted,

crates/presentation/src/handlers/users.rs

@@ -101,7 +101,7 @@ pub async fn get_users(
         let users: Vec<_> = result
             .items
             .iter()
-            .map(|u| crate::handlers::auth::to_user_response(u))
+            .map(crate::handlers::auth::to_user_response)
             .collect();
         return Ok(Json(serde_json::json!({
             "items": users, "total": result.total, "page": result.page, "per_page": result.per_page