feat(collections): 自动同步作品交付集验收状态

api/services/collectionsService.ts

@@ -0,0 +1,46 @@
+import type { CollectionStatus } from '../../shared/types.js';
+import { database, databaseDialect, type QueryContext } from '../database.js';
+
+export interface CollectionStatusResult {
+  status: CollectionStatus;
+  workCount: number;
+  approvedCount: number;
+  completedAt: string | null;
+}
+
+export function deriveCollectionStatus(workCount: number, approvedCount: number): Exclude<CollectionStatus, 'archived'> {
+  if (workCount === 0) return 'draft';
+  if (approvedCount === workCount) return 'completed';
+  return 'reviewing';
+}
+
+export async function recalculateCollectionStatus(
+  collectionId: number,
+  tx: QueryContext = database,
+): Promise<CollectionStatusResult | null> {
+  const collection = await tx.one<{ status: CollectionStatus; completed_at: string | null }>(
+    `SELECT status, completed_at FROM collections WHERE id = ?${databaseDialect === 'postgres' ? ' FOR NO KEY UPDATE' : ''}`,
+    [collectionId],
+  );
+  if (!collection) return null;
+
+  const counts = await tx.one<{ work_count: number | string; approved_count: number | string }>(
+    `SELECT COUNT(*) AS work_count,
+      SUM(CASE WHEN review_status = 'approved' THEN 1 ELSE 0 END) AS approved_count
+    FROM notes WHERE collection_id = ? AND review_status != 'draft'`,
+    [collectionId],
+  );
+  const workCount = Number(counts?.work_count ?? 0);
+  const approvedCount = Number(counts?.approved_count ?? 0);
+
+  if (collection.status === 'archived') {
+    return { status: 'archived', workCount, approvedCount, completedAt: collection.completed_at };
+  }
+
+  const status = deriveCollectionStatus(workCount, approvedCount);
+  const completedAt = status === 'completed'
+    ? collection.completed_at ?? new Date().toISOString()
+    : null;
+  await tx.execute('UPDATE collections SET status = ?, completed_at = ? WHERE id = ?', [status, completedAt, collectionId]);
+  return { status, workCount, approvedCount, completedAt };
+}