refactor: centralize wechat notification dispatch

notification-dispatcher.test.mjs

@@ -0,0 +1,126 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { createNotificationDispatcher } from './notification-dispatcher.mjs';
+
+test('notification dispatcher forwards recharge success text unchanged', async () => {
+  const sent = [];
+  const dedupeKeys = [];
+  const logs = [];
+  const dispatcher = createNotificationDispatcher({
+    async sendWechatTextToUser(userId, text) {
+      sent.push({ userId, text });
+    },
+    logger: {
+      info(message, payload) {
+        logs.push({ message, payload });
+      },
+    },
+  });
+
+  const sentOk = await dispatcher.sendRechargeSuccess({
+    userId: 'user-1',
+    title: '充值成功',
+    body: '你已成功充值 ¥25.00，余额已更新。',
+    dedupeKey: (dedupeKeys.push('recharge:order-1'), 'recharge:order-1'),
+  });
+
+  assert.equal(sentOk, true);
+  assert.deepEqual(dedupeKeys, ['recharge:order-1']);
+  assert.deepEqual(sent, [
+    { userId: 'user-1', text: '充值成功\n你已成功充值 ¥25.00，余额已更新。' },
+  ]);
+  assert.deepEqual(logs, [
+    {
+      message: 'Notification dispatch:',
+      payload: {
+        type: 'recharge_success',
+        userId: 'user-1',
+        dedupeKey: 'recharge:order-1',
+        sent: true,
+      },
+    },
+  ]);
+});
+
+test('notification dispatcher forwards schedule notification text unchanged', async () => {
+  const sent = [];
+  const logs = [];
+  const dispatcher = createNotificationDispatcher({
+    async sendWechatTextToUser(userId, text) {
+      sent.push({ userId, text });
+    },
+    logger: {
+      info(message, payload) {
+        logs.push({ message, payload });
+      },
+    },
+  });
+
+  const sentOk = await dispatcher.sendScheduleNotification({
+    userId: 'user-2',
+    text: '【待办提醒】开会\n提醒时间：09:00',
+  });
+
+  assert.equal(sentOk, true);
+  assert.deepEqual(sent, [
+    { userId: 'user-2', text: '【待办提醒】开会\n提醒时间：09:00' },
+  ]);
+  assert.deepEqual(logs, [
+    {
+      message: 'Notification dispatch:',
+      payload: {
+        type: 'schedule_notification',
+        userId: 'user-2',
+        dedupeKey: null,
+        sent: true,
+      },
+    },
+  ]);
+});
+
+test('notification dispatcher returns false when wechat sender is unavailable', async () => {
+  const logs = [];
+  const dispatcher = createNotificationDispatcher({
+    logger: {
+      info(message, payload) {
+        logs.push({ message, payload });
+      },
+    },
+  });
+
+  assert.equal(
+    await dispatcher.sendRechargeSuccess({
+      userId: 'user-3',
+      title: '充值成功',
+      body: '余额已更新。',
+    }),
+    false,
+  );
+  assert.equal(
+    await dispatcher.sendScheduleNotification({
+      userId: 'user-3',
+      text: '【待办提醒】开会',
+    }),
+    false,
+  );
+  assert.deepEqual(logs, [
+    {
+      message: 'Notification dispatch:',
+      payload: {
+        type: 'recharge_success',
+        userId: 'user-3',
+        dedupeKey: null,
+        sent: false,
+      },
+    },
+    {
+      message: 'Notification dispatch:',
+      payload: {
+        type: 'schedule_notification',
+        userId: 'user-3',
+        dedupeKey: null,
+        sent: false,
+      },
+    },
+  ]);
+});