feat: init

2026-06-07 11:30:56 +08:00
commit 563381c1ca
361 changed files with 41327 additions and 0 deletions
@@ -0,0 +1,119 @@
+use uuid::Uuid;
+
+use crate::error::AppError;
+use crate::models::prs::PrAssignee;
+use crate::service::PrService;
+use crate::session::Session;
+
+use super::util::{clamp_limit_offset, ensure_affected};
+
+impl PrService {
+    pub async fn pr_assignees(
+        &self,
+        ctx: &Session,
+        wk_name: &str,
+        repo_name: &str,
+        number: i64,
+        limit: i64,
+        offset: i64,
+    ) -> Result<Vec<PrAssignee>, AppError> {
+        let user_uid = ctx.user().ok_or(AppError::Unauthorized)?;
+        let pr = self.resolve_pr(wk_name, repo_name, number).await?;
+        self.ensure_pr_readable(user_uid, &pr).await?;
+        let (limit, offset) = clamp_limit_offset(limit, offset);
+        sqlx::query_as::<_, PrAssignee>(
+            "SELECT id, pull_request_id, assignee_id, assigned_by, created_at \
+             FROM pr_assignee WHERE pull_request_id = $1 ORDER BY created_at ASC LIMIT $2 OFFSET $3",
+        )
+        .bind(pr.id).bind(limit).bind(offset)
+        .fetch_all(self.ctx.db.reader()).await.map_err(AppError::Database)
+    }
+
+    pub async fn pr_assign(
+        &self,
+        ctx: &Session,
+        wk_name: &str,
+        repo_name: &str,
+        number: i64,
+        assignee_id: Uuid,
+    ) -> Result<PrAssignee, AppError> {
+        let user_uid = ctx.user().ok_or(AppError::Unauthorized)?;
+        let pr = self.resolve_pr(wk_name, repo_name, number).await?;
+        self.ensure_pr_editable(user_uid, &pr).await?;
+        let now = chrono::Utc::now();
+        let mut txn = self
+            .ctx
+            .db
+            .writer()
+            .begin()
+            .await
+            .map_err(|_| AppError::TxnError)?;
+        sqlx::query("SET LOCAL app.current_user_id = $1")
+            .bind(user_uid)
+            .execute(&mut *txn)
+            .await
+            .map_err(AppError::Database)?;
+
+        let assignee = sqlx::query_as::<_, PrAssignee>(
+            "INSERT INTO pr_assignee (id, pull_request_id, assignee_id, assigned_by, created_at) \
+             VALUES ($1, $2, $3, $4, $5) ON CONFLICT (pull_request_id, assignee_id) DO NOTHING \
+             RETURNING id, pull_request_id, assignee_id, assigned_by, created_at",
+        )
+        .bind(Uuid::now_v7())
+        .bind(pr.id)
+        .bind(assignee_id)
+        .bind(user_uid)
+        .bind(now)
+        .fetch_optional(&mut *txn)
+        .await
+        .map_err(AppError::Database)?
+        .ok_or(AppError::Conflict("user already assigned".into()))?;
+
+        sqlx::query(
+            "INSERT INTO pr_subscription (id, pull_request_id, user_id, reason, muted, created_at, updated_at) \
+             VALUES ($1, $2, $3, 'assignee', false, $4, $4) ON CONFLICT DO NOTHING",
+        )
+        .bind(Uuid::now_v7()).bind(pr.id).bind(assignee_id).bind(now)
+        .execute(&mut *txn).await.map_err(AppError::Database)?;
+
+        txn.commit().await.map_err(|_| AppError::TxnError)?;
+        Ok(assignee)
+    }
+
+    pub async fn pr_unassign(
+        &self,
+        ctx: &Session,
+        wk_name: &str,
+        repo_name: &str,
+        number: i64,
+        assignee_id: Uuid,
+    ) -> Result<(), AppError> {
+        let user_uid = ctx.user().ok_or(AppError::Unauthorized)?;
+        let pr = self.resolve_pr(wk_name, repo_name, number).await?;
+        self.ensure_pr_editable(user_uid, &pr).await?;
+        let mut txn = self
+            .ctx
+            .db
+            .writer()
+            .begin()
+            .await
+            .map_err(|_| AppError::TxnError)?;
+        sqlx::query("SET LOCAL app.current_user_id = $1")
+            .bind(user_uid)
+            .execute(&mut *txn)
+            .await
+            .map_err(AppError::Database)?;
+
+        let result =
+            sqlx::query("DELETE FROM pr_assignee WHERE pull_request_id = $1 AND assignee_id = $2")
+                .bind(pr.id)
+                .bind(assignee_id)
+                .execute(&mut *txn)
+                .await
+                .map_err(AppError::Database)?;
+        ensure_affected(result.rows_affected(), "assignee not found")?;
+
+        txn.commit().await.map_err(|_| AppError::TxnError)?;
+        Ok(())
+    }
+}