feat(api): Send flag notifications to slack

test/api/v3/unit/libs/slack.js

@@ -0,0 +1,97 @@
+/* eslint-disable camelcase */
+import { IncomingWebhook } from '@slack/client';
+import slack from '../../../../../website/server/libs/slack';
+import { TAVERN_ID } from '../../../../../website/server/models/group';
+
+describe('slack', () => {
+  describe('sendFlagNotification', () => {
+    let flagger, group, message;
+
+    beforeEach(() => {
+      sandbox.stub(IncomingWebhook.prototype, 'send');
+      flagger = {
+        id: 'flagger-id',
+        profile: {
+          name: 'flagger',
+        },
+      };
+      group = {
+        id: 'group-id',
+        privacy: 'private',
+        name: 'Some group',
+        type: 'guild',
+      };
+      message = {
+        id: 'chat-id',
+        user: 'Author',
+        uuid: 'author-id',
+        text: 'some text',
+      };
+    });
+
+    afterEach(() => {
+      IncomingWebhook.prototype.send.restore();
+    });
+
+    it('sends a slack webhook', () => {
+      slack.sendFlagNotification({
+        flagger,
+        group,
+        message,
+      });
+
+      expect(IncomingWebhook.prototype.send).to.be.calledOnce;
+      expect(IncomingWebhook.prototype.send).to.be.calledWith({
+        text: 'flagger (flagger-id) flagged a message',
+        attachments: [{
+          fallback: 'Flag Message',
+          color: 'danger',
+          author_name: 'Author - author-id',
+          title: 'Flag in Some group - (private guild)',
+          title_link: undefined,
+          text: 'some text',
+          footer: sandbox.match(/<.*?groupId=group-id&chatId=chat-id\|Flag this message>/),
+          mrkdwn_in: [
+            'text',
+          ],
+        }],
+      });
+    });
+
+    it('includes a title link if guild is public', () => {
+      group.privacy = 'public';
+
+      slack.sendFlagNotification({
+        flagger,
+        group,
+        message,
+      });
+
+      expect(IncomingWebhook.prototype.send).to.be.calledWithMatch({
+        attachments: [sandbox.match({
+          title: 'Flag in Some group',
+          title_link: sandbox.match(/.*\/#\/options\/groups\/guilds\/group-id/),
+        })],
+      });
+    });
+
+    it('links to tavern', () => {
+      group.privacy = 'public';
+      group.name = 'Tavern';
+      group.id = TAVERN_ID;
+
+      slack.sendFlagNotification({
+        flagger,
+        group,
+        message,
+      });
+
+      expect(IncomingWebhook.prototype.send).to.be.calledWithMatch({
+        attachments: [sandbox.match({
+          title: 'Flag in Tavern',
+          title_link: sandbox.match(/.*\/#\/options\/groups\/tavern/),
+        })],
+      });
+    });
+  });
+});