Provision instance bank credentials automatically (Refs #146)

src/lib/server/db/bank-credentials.ts

@@ -0,0 +1,22 @@
+import type Database from 'better-sqlite3';
+
+export function migrateBankCredentials(handle: Database.Database): void {
+    handle.exec(`
+        CREATE TABLE IF NOT EXISTS bank_credentials (
+            instance_id TEXT PRIMARY KEY, server TEXT NOT NULL,
+            token TEXT NOT NULL, token_hash TEXT NOT NULL UNIQUE, created_at TEXT NOT NULL
+        );
+    `);
+    if (
+        !(handle.pragma('table_info(bank_requests)') as { name: string }[]).some(
+            (column) => column.name === 'instance_id'
+        )
+    ) {
+        handle.exec(`
+            ALTER TABLE bank_requests ADD COLUMN instance_id TEXT;
+            UPDATE bank_requests SET instance_id = (
+                SELECT id FROM native_instances WHERE server = bank_requests.server AND retired_at IS NULL
+            );
+        `);
+    }
+}

src/lib/server/db/migrations.ts

@@ -19,6 +19,7 @@ import { migrateGameFileSchema } from '../game-files/schema.js';
 import { migrateLeaderboardReports } from './leaderboard-reports.js';
 import { migratePlayerScoreTotal } from './player-score-total.js';
 import { migrateBank } from './bank.js';
+import { migrateBankCredentials } from './bank-credentials.js';
 import type { Migration } from './migration-runner.js';
 
 // Append only: never renumber entries or change an applied migration to add an
@@ -111,7 +112,8 @@ export const migrations: readonly Migration[] = [
         name: 'cumulative player score per match',
         run: migratePlayerScoreTotal
     },
-    { version: 20, name: 'persistent player bank and transfer ledger', run: migrateBank }
+    { version: 20, name: 'persistent player bank and transfer ledger', run: migrateBank },
+    { version: 21, name: 'instance-owned bank credentials', run: migrateBankCredentials }
 ];
 
 export const databaseVersion = migrations.length;