import assert from 'node:assert/strict';
import { existsSync, readFileSync } from 'node:fs';
import { join } from 'node:path';

const root = process.cwd();
const read = (path) => readFileSync(join(root, path), 'utf8');

for (const suffix of ['up', 'down', 'verify']) {
  assert.ok(
    existsSync(join(root,
      `database/migrations/2026081108_m09d2_product_order_payment_inventory.${suffix}.sql`)),
    `M09-D2 ${suffix} migration is missing`
  );
}

const migration = read(
  'database/migrations/2026081108_m09d2_product_order_payment_inventory.up.sql'
);
for (const pattern of [
  'qipai_product_orders',
  'qipai_product_order_items',
  'qipai_product_order_events',
  'qipai_product_payments',
  'qipai_product_refunds',
  'qipai_product_payment_callbacks',
  'qipai_product_refund_events',
  'PENDING_PAYMENT',
  'READY_FOR_SELF_SERVICE',
  'COMPENSATION_REQUIRED',
  'inventory_request_id',
  'request_fingerprint',
  'PRODUCT_ORDER_ITEM_IMMUTABLE',
  'PRODUCT_ORDER_EVENT_IMMUTABLE',
  'PRODUCT_REFUND_EVENT_IMMUTABLE',
  'goods.order.read',
  'goods.order.manage'
]) assert.ok(migration.includes(pattern), `M09-D2 migration is missing ${pattern}`);
assert.doesNotMatch(migration, /\bDECIMAL\b/i);
assert.match(migration, /subtotal_cents = unit_price_cents \* quantity/);
assert.match(migration, /fulfillment_mode = 'DELIVERY' AND room_order_id IS NOT NULL/);
assert.match(migration, /fulfillment_mode = 'SELF_SERVICE' AND room_order_id IS NULL/);

const service = read('backend/src/products/product-order-service.ts');
for (const pattern of [
  'ProductOrderService',
  'createPaymentForCustomer',
  'confirmPayment',
  'confirmRefund',
  'expirePendingOrders',
  'resolveProductOrderTransition',
  'lockMany',
  'deductMany',
  'releaseMany',
  'returnMany',
  'FOR UPDATE',
  'PRODUCT_ORDER_IDEMPOTENCY_CONFLICT',
  'PRODUCT_PAYMENT_CALLBACK_CONFLICT',
  'PRODUCT_REFUND_CALLBACK_CONFLICT'
]) assert.ok(service.includes(pattern), `product order service is missing ${pattern}`);
assert.match(service, /beginTransaction\(\)[\s\S]*commit\(\)[\s\S]*rollback\(\)/);
assert.match(service, /order\.expiresAt <= this\.now\(\)/);

const routes = read('backend/src/routes/product-orders.ts');
for (const pattern of [
  '/app-api/product-orders',
  '/admin-api',
  '/app-api/management',
  'goods.order.read',
  'goods.order.manage',
  'testAdapterEnabled',
  'completeTestRefundForManagement'
]) assert.ok(routes.includes(pattern), `product order routes are missing ${pattern}`);

const app = read('backend/src/app.ts');
const server = read('backend/src/server.ts');
assert.match(app, /registerProductOrderRoutes/);
assert.match(app, /productOrders\?: ProductOrderRouteOptions/);
assert.match(server, /new ProductOrderService\(pool, inventoryService\)/);
assert.match(server, /testAdapterEnabled: config\.payment\.testAdapterEnabled/);

const rbac = read('backend/src/auth/rbac-repository.ts');
assert.match(rbac, /'goods\.order\.read', 'goods\.order\.manage'/);
const packageJson = read('backend/package.json');
assert.match(packageJson, /product-order-service\.test\.mjs/);
assert.match(packageJson, /product-order-route\.test\.mjs/);

const mysqlTest = read('backend/tests/mysql-migration-roundtrip.test.mjs');
for (const pattern of [
  'assertProductOrderPaymentInventory',
  'concurrent payment callbacks must deduct inventory once',
  'PRODUCT_ORDER_ITEM_IMMUTABLE',
  'PRODUCT_ORDER_EVENT_IMMUTABLE',
  'PRODUCT_REFUND_EVENT_IMMUTABLE',
  'expirePendingOrders'
]) assert.ok(mysqlTest.includes(pattern), `live MySQL test is missing ${pattern}`);

console.log(
  'PASS: M09-D2 product order, payment callback, inventory compensation and immutable-event gates are present.'
);