zhenyi
124 lines
4.5 KiB
Rust
124 lines
4.5 KiB
Rust
use uuid::Uuid;
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use crate::error::AppError;
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use crate::models::issues::IssueAssignee;
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use crate::service::IssueService;
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use crate::session::Session;
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use super::util::{clamp_limit_offset, ensure_affected};
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impl IssueService {
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pub async fn issue_assignees(
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&self,
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ctx: &Session,
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wk_name: &str,
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number: i64,
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limit: i64,
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offset: i64,
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) -> Result<Vec<IssueAssignee>, AppError> {
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let user_uid = ctx.user().ok_or(AppError::Unauthorized)?;
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let issue = self.resolve_issue(wk_name, number).await?;
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let issue_id = issue.id;
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self.ensure_issue_readable(user_uid, &issue).await?;
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let (limit, offset) = clamp_limit_offset(limit, offset);
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sqlx::query_as::<_, IssueAssignee>(
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"SELECT id, issue_id, assignee_id, assigned_by, created_at \
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FROM issue_assignee WHERE issue_id = $1 ORDER BY created_at ASC LIMIT $2 OFFSET $3",
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)
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.bind(issue_id)
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.bind(limit)
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.bind(offset)
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.fetch_all(self.ctx.db.reader())
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.await
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.map_err(AppError::Database)
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}
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pub async fn issue_assign(
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&self,
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ctx: &Session,
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wk_name: &str,
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number: i64,
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assignee_id: Uuid,
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) -> Result<IssueAssignee, AppError> {
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let user_uid = ctx.user().ok_or(AppError::Unauthorized)?;
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let issue = self.resolve_issue(wk_name, number).await?;
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let issue_id = issue.id;
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self.ensure_issue_editable(user_uid, &issue).await?;
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let now = chrono::Utc::now();
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let mut txn = self
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.ctx
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.db
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.writer()
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.begin()
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.await
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.map_err(|_| AppError::TxnError)?;
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sqlx::query("SET LOCAL app.current_user_id = $1")
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.bind(user_uid)
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.execute(&mut *txn)
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.await
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.map_err(AppError::Database)?;
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let assignee = sqlx::query_as::<_, IssueAssignee>(
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"INSERT INTO issue_assignee (id, issue_id, assignee_id, assigned_by, created_at) \
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VALUES ($1, $2, $3, $4, $5) ON CONFLICT (issue_id, assignee_id) DO NOTHING \
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RETURNING id, issue_id, assignee_id, assigned_by, created_at",
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)
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.bind(Uuid::now_v7())
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.bind(issue_id)
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.bind(assignee_id)
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.bind(user_uid)
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.bind(now)
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.fetch_optional(&mut *txn)
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.await
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.map_err(AppError::Database)?
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.ok_or(AppError::Conflict("user already assigned".into()))?;
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sqlx::query("UPDATE issue_stats SET assignees_count = assignees_count + 1, updated_at = $1 WHERE issue_id = $2")
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.bind(now).bind(issue_id).execute(&mut *txn).await.map_err(AppError::Database)?;
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sqlx::query(
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"INSERT INTO issue_subscriber (id, issue_id, user_id, reason, muted, created_at, updated_at) \
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VALUES ($1, $2, $3, 'assignee', false, $4, $4) ON CONFLICT DO NOTHING",
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)
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.bind(Uuid::now_v7()).bind(issue_id).bind(assignee_id).bind(now)
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.execute(&mut *txn).await.map_err(AppError::Database)?;
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txn.commit().await.map_err(|_| AppError::TxnError)?;
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Ok(assignee)
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}
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pub async fn issue_unassign(
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&self,
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ctx: &Session,
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wk_name: &str,
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number: i64,
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assignee_id: Uuid,
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) -> Result<(), AppError> {
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let user_uid = ctx.user().ok_or(AppError::Unauthorized)?;
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let issue = self.resolve_issue(wk_name, number).await?;
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let issue_id = issue.id;
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self.ensure_issue_editable(user_uid, &issue).await?;
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let now = chrono::Utc::now();
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let mut txn = self
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.ctx
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.db
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.writer()
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.begin()
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.await
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.map_err(|_| AppError::TxnError)?;
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sqlx::query("SET LOCAL app.current_user_id = $1")
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.bind(user_uid)
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.execute(&mut *txn)
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.await
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.map_err(AppError::Database)?;
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let result =
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sqlx::query("DELETE FROM issue_assignee WHERE issue_id = $1 AND assignee_id = $2")
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.bind(issue_id)
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.bind(assignee_id)
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.execute(&mut *txn)
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.await
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.map_err(AppError::Database)?;
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ensure_affected(result.rows_affected(), "assignee not found")?;
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sqlx::query("UPDATE issue_stats SET assignees_count = GREATEST(assignees_count - 1, 0), updated_at = $1 WHERE issue_id = $2")
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.bind(now).bind(issue_id).execute(&mut *txn).await.map_err(AppError::Database)?;
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txn.commit().await.map_err(|_| AppError::TxnError)?;
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Ok(())
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}
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}
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