import assert from 'node:assert/strict';
import test from 'node:test';
import { WECHAT_NOTIFY_SUCCESS_V2 } from '../wechat-pay.mjs';
import {
  attachPortalWebhookRoutes,
} from './portal-webhook-routes.mjs';

function createResponse() {
  return {
    statusCode: 200,
    contentType: null,
    body: undefined,
    status(code) {
      this.statusCode = code;
      return this;
    },
    type(value) {
      this.contentType = value;
      return this;
    },
    json(body) {
      this.body = body;
      return this;
    },
    send(body) {
      this.body = body;
      return this;
    },
  };
}

function createSetup({
  mpEnabled = true,
  apiVersion = 'v3',
  payEnabled = true,
} = {}) {
  const routes = [];
  const calls = [];
  const rawBody = () => {};
  const textBody = () => {};
  let rechargeService = {
    async handleWechatNotify(payload) {
      calls.push(['pay-notify', payload]);
    },
  };
  let wechatPayClient = {
    enabled: payEnabled,
    apiVersion,
  };
  let wechatMpService = {
    enabled: true,
    verifyUrlChallenge(query) {
      calls.push(['mp-verify', query]);
      return {
        ok: true,
        body: query.echostr,
      };
    },
    async handleInboundMessage(body, query) {
      calls.push(['mp-message', body, query]);
      return {
        status: 202,
        contentType: 'text/xml',
        body: '<xml>accepted</xml>',
        task: Promise.resolve(),
      };
    },
  };
  const app = {
    get(path, ...handlers) {
      routes.push({
        method: 'get',
        path,
        handlers,
      });
    },
    post(path, ...handlers) {
      routes.push({
        method: 'post',
        path,
        handlers,
      });
    },
  };
  const logger = {
    log(...args) {
      calls.push(['log', ...args]);
    },
    warn(...args) {
      calls.push(['warn', ...args]);
    },
    error(...args) {
      calls.push(['error', ...args]);
    },
  };
  attachPortalWebhookRoutes({
    app,
    userAuthReady: Promise.resolve(),
    wechatNotifyBody: rawBody,
    wechatMpBody: textBody,
    wechatMpConfig: {
      enabled: mpEnabled,
    },
    getRechargeService: () => rechargeService,
    getWechatPayClient: () => wechatPayClient,
    getWechatMpService: () => wechatMpService,
    logger,
  });

  return {
    routes,
    calls,
    rawBody,
    textBody,
    setRechargeService(value) {
      rechargeService = value;
    },
    setWechatPayClient(value) {
      wechatPayClient = value;
    },
    setWechatMpService(value) {
      wechatMpService = value;
    },
    route(method, path) {
      return routes.find(
        (route) =>
          route.method === method &&
          route.path === path,
      );
    },
  };
}

async function invoke(
  setup,
  method,
  path,
  request = {},
) {
  const route = setup.route(method, path);
  assert.ok(
    route,
    `${method.toUpperCase()} ${path}`,
  );
  const response = createResponse();
  await route.handlers.at(-1)(
    {
      body: '',
      headers: {},
      query: {},
      ...request,
    },
    response,
  );
  return response;
}

test('registers payment and enabled MP webhook inventory with body middleware', () => {
  const setup = createSetup();
  assert.deepEqual(
    setup.routes.map(({ method, path }) => [
      method,
      path,
    ]),
    [
      ['post', '/webhooks/wechat-pay/notify'],
      ['get', '/webhooks/wechat-mp/messages'],
      ['post', '/webhooks/wechat-mp/messages'],
    ],
  );
  assert.equal(
    setup.routes[0].handlers[0],
    setup.rawBody,
  );
  assert.equal(
    setup.routes[2].handlers[0],
    setup.textBody,
  );

  const disabled = createSetup({
    mpEnabled: false,
  });
  assert.deepEqual(
    disabled.routes.map(({ method, path }) => [
      method,
      path,
    ]),
    [
      ['post', '/webhooks/wechat-pay/notify'],
    ],
  );
});

test('preserves WeChat Pay v3 success, disabled, and failure responses', async () => {
  const setup = createSetup();
  const success = await invoke(
    setup,
    'post',
    '/webhooks/wechat-pay/notify',
    {
      body: Buffer.from('signed-body'),
      headers: { signature: 'sig' },
    },
  );
  assert.deepEqual(success.body, {
    code: 'SUCCESS',
    message: '成功',
  });
  assert.deepEqual(setup.calls[0], [
    'pay-notify',
    {
      headers: { signature: 'sig' },
      body: 'signed-body',
    },
  ]);

  setup.setWechatPayClient({
    enabled: false,
    apiVersion: 'v3',
  });
  const disabled = await invoke(
    setup,
    'post',
    '/webhooks/wechat-pay/notify',
  );
  assert.equal(disabled.statusCode, 503);
  assert.deepEqual(disabled.body, {
    code: 'FAIL',
    message: '支付未启用',
  });

  setup.setWechatPayClient({
    enabled: true,
    apiVersion: 'v3',
  });
  setup.setRechargeService({
    async handleWechatNotify() {
      throw new Error('bad signature');
    },
  });
  const failed = await invoke(
    setup,
    'post',
    '/webhooks/wechat-pay/notify',
  );
  assert.equal(failed.statusCode, 500);
  assert.deepEqual(failed.body, {
    code: 'FAIL',
    message: 'bad signature',
  });
});

test('preserves WeChat Pay v2 XML responses', async () => {
  const setup = createSetup({
    apiVersion: 'v2',
  });
  const success = await invoke(
    setup,
    'post',
    '/webhooks/wechat-pay/notify',
  );
  assert.equal(success.contentType, 'text/xml');
  assert.equal(
    success.body,
    WECHAT_NOTIFY_SUCCESS_V2,
  );

  setup.setWechatPayClient({
    enabled: false,
    apiVersion: 'v2',
  });
  const disabled = await invoke(
    setup,
    'post',
    '/webhooks/wechat-pay/notify',
  );
  assert.equal(disabled.statusCode, 503);
  assert.match(disabled.body, /支付未启用/);

  setup.setWechatPayClient({
    enabled: true,
    apiVersion: 'v2',
  });
  setup.setRechargeService({
    async handleWechatNotify() {
      throw 'unknown';
    },
  });
  const failed = await invoke(
    setup,
    'post',
    '/webhooks/wechat-pay/notify',
  );
  assert.equal(failed.statusCode, 500);
  assert.match(failed.body, /处理失败/);
});

test('preserves MP verification success, rejection, and disabled responses', async () => {
  const setup = createSetup();
  const success = await invoke(
    setup,
    'get',
    '/webhooks/wechat-mp/messages',
    {
      query: {
        echostr: 'challenge',
        timestamp: '1',
        nonce: '2',
      },
    },
  );
  assert.equal(success.contentType, 'text/plain');
  assert.equal(success.body, 'challenge');

  setup.setWechatMpService({
    enabled: true,
    verifyUrlChallenge() {
      return {
        ok: false,
        status: 401,
        body: 'rejected',
      };
    },
  });
  const rejected = await invoke(
    setup,
    'get',
    '/webhooks/wechat-mp/messages',
  );
  assert.equal(rejected.statusCode, 401);
  assert.equal(rejected.body, 'rejected');

  setup.setWechatMpService(null);
  const disabled = await invoke(
    setup,
    'get',
    '/webhooks/wechat-mp/messages',
  );
  assert.equal(disabled.statusCode, 503);
  assert.equal(
    disabled.body,
    'wechat mp disabled',
  );
});

test('preserves MP message handling metadata and response', async () => {
  const setup = createSetup();
  const xml =
    '<xml><FromUserName><![CDATA[openid-123456]]></FromUserName>' +
    '<MsgType><![CDATA[text]]></MsgType>' +
    '<Content><![CDATA[hello world]]></Content></xml>';
  const response = await invoke(
    setup,
    'post',
    '/webhooks/wechat-mp/messages',
    {
      body: xml,
      query: { signature: 'sig' },
    },
  );
  assert.equal(response.statusCode, 202);
  assert.equal(response.contentType, 'text/xml');
  assert.equal(
    response.body,
    '<xml>accepted</xml>',
  );
  assert.ok(
    setup.calls.some(
      (call) =>
        call[0] === 'mp-message' &&
        call[1] === xml,
    ),
  );
  assert.ok(
    setup.calls.some(
      (call) =>
        call[0] === 'log' &&
        call[1] ===
          'WeChat MP message received:' &&
        call[2].fromUser === 'openid-1...',
    ),
  );
});

test('preserves MP message disabled and failure responses', async () => {
  const setup = createSetup();
  setup.setWechatMpService(null);
  const disabled = await invoke(
    setup,
    'post',
    '/webhooks/wechat-mp/messages',
  );
  assert.equal(disabled.statusCode, 503);
  assert.equal(
    disabled.body,
    'wechat mp disabled',
  );

  setup.setWechatMpService({
    enabled: true,
    async handleInboundMessage() {
      throw new Error('broken handler');
    },
  });
  const failed = await invoke(
    setup,
    'post',
    '/webhooks/wechat-mp/messages',
  );
  assert.equal(failed.statusCode, 500);
  assert.equal(failed.body, 'internal error');
});