Expand moderation case workflows

src/lib/server/moderation/schema.ts

@@ -109,3 +109,43 @@ export function migrateModeration(handle: Database.Database): void {
         cursor = [last.game, last.guid];
     }
 }
+
+/** The migration runner disables foreign keys before opening this transaction. */
+export function migrateModerationCases(handle: Database.Database): void {
+    const columns = handle.pragma('table_info(moderation_cases)') as { name: string }[];
+    if (!columns.some((column) => column.name === 'priority')) {
+        if (handle.pragma('foreign_keys', { simple: true }))
+            throw new Error('The moderation case migration requires foreign keys to be disabled');
+        // Do not rename the existing parent: archived evidence must keep its
+        // original case reference through the rebuild.
+        handle.exec(`
+            CREATE TABLE moderation_cases_expanded (
+                id TEXT PRIMARY KEY, game TEXT NOT NULL, guid TEXT NOT NULL, title TEXT NOT NULL,
+                status TEXT NOT NULL CHECK(status IN ('open','in_review','escalated','resolved','dismissed',
+                    'warning_issued','restriction_applied','no_action','duplicate','appeal_upheld','appeal_denied')),
+                actor_id TEXT NOT NULL, actor TEXT NOT NULL,
+                created_at TEXT NOT NULL, updated_at TEXT NOT NULL, revision INTEGER NOT NULL DEFAULT 1,
+                priority TEXT NOT NULL DEFAULT 'normal' CHECK(priority IN ('low','normal','high','urgent')),
+                assignee_id TEXT REFERENCES auth_users(id) ON DELETE SET NULL
+            );
+            INSERT INTO moderation_cases_expanded(id,game,guid,title,status,actor_id,actor,created_at,updated_at,revision)
+                SELECT id,game,guid,title,status,actor_id,actor,created_at,updated_at,revision FROM moderation_cases;
+            DROP TABLE moderation_cases;
+            ALTER TABLE moderation_cases_expanded RENAME TO moderation_cases;
+        `);
+    }
+    if (
+        !(handle.pragma('table_info(moderation_sanctions)') as { name: string }[]).some(
+            (column) => column.name === 'case_id'
+        )
+    )
+        handle.exec(
+            'ALTER TABLE moderation_sanctions ADD COLUMN case_id TEXT REFERENCES moderation_cases(id) ON DELETE SET NULL'
+        );
+    handle.exec(`
+        CREATE INDEX IF NOT EXISTS moderation_cases_queue ON moderation_cases(status,priority,updated_at);
+        CREATE INDEX IF NOT EXISTS moderation_cases_assignee ON moderation_cases(assignee_id,updated_at);
+        CREATE INDEX IF NOT EXISTS moderation_sanctions_case ON moderation_sanctions(case_id);
+        CREATE INDEX IF NOT EXISTS moderation_events_subject_id ON moderation_events(subject_id,id);
+    `);
+}