Webhookのメッセージをカスタマイズできるように

tests/monitoring.test.js

@@ -102,6 +102,11 @@ describe('certificate monitoring', () => {
         };
       }
 
+      if (sql.includes('FROM user_notification_settings')) {
+        expect(params).toEqual([USER_ID]);
+        return { rows: [] };
+      }
+
       if (sql.includes('FROM notification_methods') && sql.includes("notification_type = 'push'")) {
         expect(params).toEqual([USER_ID]);
         return {
@@ -138,7 +143,12 @@ describe('certificate monitoring', () => {
 
     expect(pool.connect).toHaveBeenCalledOnce();
     expect(getCertificateExpiry).toHaveBeenCalledWith('https://example.com/');
-    expect(deliverNotifications).toHaveBeenCalledOnce();
+    expect(deliverNotifications).toHaveBeenCalledWith(
+      expect.objectContaining({
+        webhookMessageBody:
+          'example.com の有効期限が 12時間前 になりました。\n2026/05/25 20:30:00 に期限切れになります。',
+      }),
+    );
     expect(mocks.client.release).toHaveBeenCalledOnce();
     expect(result).toMatchObject({
       checkedSites: 1,
@@ -490,4 +500,95 @@ describe('certificate monitoring', () => {
       results: [{ siteId: SITE_ID, ok: true, alertsCreated: 1 }],
     });
   });
+
+  it('renders a custom webhook message with the configured timezone and timing labels', async () => {
+    vi.setSystemTime(new Date('2026-12-24T05:36:07.000Z'));
+    const issuer = 'C = US, O = Example CA, CN = Example Root';
+    const issuedAt = new Date('2026-01-01T00:00:00.000Z');
+    const expiresAt = new Date('2026-12-31T05:06:07.000Z');
+
+    getCertificateExpiry.mockResolvedValue({
+      issuer,
+      issuedAt,
+      expiresAt,
+      hoursUntilExpiry: 168,
+    });
+    deliverNotifications.mockResolvedValue({
+      webhook: [],
+      push: { ok: false, skipped: true },
+    });
+
+    mocks.client.query.mockImplementation(async (sql, params) => {
+      if (sql.includes('FROM sites s') && sql.includes('LEFT JOIN site_alert_conditions')) {
+        return {
+          rows: [
+            {
+              site_id: SITE_ID,
+              user_id: USER_ID,
+              url: 'https://example.com/',
+              alias: 'Example Site',
+              conditions: [
+                {
+                  site_alert_condition_id: CONDITION_ID,
+                  threshold_hours: 168,
+                  webhook_method_ids: [WEBHOOK_ID],
+                  push_enabled: false,
+                },
+              ],
+            },
+          ],
+        };
+      }
+
+      if (sql.includes('SET certificate_issuer')) {
+        expect(params).toEqual([SITE_ID, issuer, issuedAt, expiresAt]);
+        return { rows: [] };
+      }
+
+      if (sql.includes('FROM notification_methods') && sql.includes("notification_type = 'webhook'")) {
+        return {
+          rows: [
+            {
+              notification_method_id: WEBHOOK_ID,
+              alias: 'Deploy hook',
+              url: 'https://hooks.example.com/',
+            },
+          ],
+        };
+      }
+
+      if (sql.includes('FROM user_notification_settings')) {
+        expect(params).toEqual([USER_ID]);
+        return {
+          rows: [
+            {
+              webhook_message_template:
+                '{{siteName}}/{{siteDomain}}/{{condTiming}}/{{expiryDate}}/{{expiryTime}}/{{expiryDateTime}}',
+              timezone: 'America/New_York',
+            },
+          ],
+        };
+      }
+
+      if (sql.includes('INSERT INTO alert_history')) {
+        return { rows: [{ alert_id: '77777777-7777-4777-8777-777777777777' }] };
+      }
+
+      if (sql.includes('UPDATE site_alert_conditions')) {
+        expect(params).toEqual([CONDITION_ID, expiresAt]);
+        return { rows: [] };
+      }
+
+      throw new Error(`Unexpected query: ${sql}`);
+    });
+
+    await runCertificateMonitoring({ concurrency: 1 });
+
+    expect(deliverNotifications).toHaveBeenCalledWith(
+      expect.objectContaining({
+        webhookMessageBody:
+          'Example Site/example.com/1週間前/2026/12/31/00:06:07/2026/12/31 00:06:07',
+      }),
+    );
+  });
 });