World Boss 2018 (Server) (#9995)

* feat(world-boss): barebones API

* fix(world): use Express respond for better JSON

* fix(api): respond with code 200

* feat(content): canonical Dysheartener desc and Rage

* fix(world-boss): enable progress

* WIP(test): world state API

* WIP(test): refactor world boss setup

* WIP(test): better expectations

* fix(test): more expect polishing

* feat(event): server side World Boss

* fix(strings): accidental deletion

* fix(content): include encouragement after Rage

* refactor(world-boss): address comments

test/api/v3/integration/world-state/GET-world-state.test.js

@@ -0,0 +1,35 @@
+import { TAVERN_ID } from '../../../../../website/server/models/group';
+import { updateDocument } from '../../../../helpers/mongo';
+import {
+  requester,
+  resetHabiticaDB,
+} from '../../../../helpers/api-v3-integration.helper';
+
+describe('GET /world-state', () => {
+  before(async () => {
+    await resetHabiticaDB();
+  });
+
+  it('returns empty worldBoss object when world boss is not active (and does not require authentication)', async () => {
+    const res = await requester().get('/world-state');
+    expect(res.worldBoss).to.eql({});
+  });
+
+  it('returns Tavern quest data when world boss is active', async () => {
+    await updateDocument('groups', {_id: TAVERN_ID}, {quest: {active: true, key: 'dysheartener', progress: {hp: 50000, rage: 9999}}});
+
+    const res = await requester().get('/world-state');
+    expect(res).to.have.deep.property('worldBoss');
+
+    expect(res.worldBoss).to.eql({
+      active: true,
+      extra: {},
+      key: 'dysheartener',
+      progress: {
+        collect: {},
+        hp: 50000,
+        rage: 9999,
+      },
+    });
+  });
+});