API-v4 route added: 'api/v4/faq' fixes #11801 (#11905)

* feat(api-v4): new /faq route added

* refactor(server): change of function name in libs/content.js

gulp/gulp-content.js

@@ -6,7 +6,7 @@ gulp.task('content:cache', done => {
   // Requiring at runtime because these files access `common`
   // code which in production works only if transpiled so after
   // gulp build:babel:common has run
-  const { CONTENT_CACHE_PATH, getLocalizedContent } = require('../website/server/libs/content'); // eslint-disable-line global-require
+  const { CONTENT_CACHE_PATH, getLocalizedContentResponse } = require('../website/server/libs/content'); // eslint-disable-line global-require
   const { langCodes } = require('../website/server/libs/i18n'); // eslint-disable-line global-require
 
   try {
@@ -23,7 +23,7 @@ gulp.task('content:cache', done => {
     langCodes.forEach(langCode => {
       fs.writeFileSync(
         `${CONTENT_CACHE_PATH}${langCode}.json`,
-        getLocalizedContent(langCode),
+        getLocalizedContentResponse(langCode),
         'utf8',
       );
     });

test/api/unit/libs/content.test.js

@@ -8,9 +8,9 @@ describe('contentLib', () => {
     });
   });
 
-  describe('getLocalizedContent', () => {
+  describe('getLocalizedContentResponse', () => {
     it('clones, not modify, the original content data', () => {
-      contentLib.getLocalizedContent();
+      contentLib.getLocalizedContentResponse();
       expect(typeof content.backgrounds.backgrounds062014.beach.text).to.equal('function');
     });
   });

test/api/unit/libs/localizeContentData.js

@@ -0,0 +1,22 @@
+import faq from '../../../../website/common/script/content/faq';
+import common from '../../../../website/common';
+import { localizeContentData } from '../../../../website/server/libs/content';
+
+const { i18n } = common;
+
+describe('localizeContentData', () => {
+  it('Should take a an object with localization identifiers and '
+    + 'return an object with actual translations in English', () => {
+    const faqInEnglish = localizeContentData(faq, 'en');
+
+    expect(faqInEnglish).to.have.property('stillNeedHelp');
+    expect(faqInEnglish.stillNeedHelp.ios).to.equal(i18n.t('iosFaqStillNeedHelp', 'en'));
+  });
+  it('Should take an object with localization identifiers and '
+    + 'return an object with actual translations in German', () => {
+    const faqInEnglish = localizeContentData(faq, 'de');
+
+    expect(faqInEnglish).to.have.property('stillNeedHelp');
+    expect(faqInEnglish.stillNeedHelp.ios).to.equal(i18n.t('iosFaqStillNeedHelp', 'de'));
+  });
+});

test/api/v4/faq/GET-faq.test.js

@@ -0,0 +1,65 @@
+import {
+  requester,
+  translate,
+} from '../../../helpers/api-integration/v4';
+import i18n from '../../../../website/common/script/i18n';
+
+describe('GET /faq', () => {
+  describe('language parameter', () => {
+    it('returns faq (and does not require authentication)', async () => {
+      const res = await requester().get('/faq');
+
+      expect(res).to.have.property('stillNeedHelp');
+      expect(res.stillNeedHelp.ios).to.equal(translate('iosFaqStillNeedHelp'));
+      expect(res).to.have.property('questions');
+      expect(res.questions[0].question).to.equal(translate('faqQuestion0'));
+    });
+
+    it('returns faq not in English', async () => {
+      const res = await requester().get('/faq?language=de');
+      expect(res).to.have.nested.property('stillNeedHelp.ios');
+      expect(res.stillNeedHelp.ios).to.equal(i18n.t('iosFaqStillNeedHelp', 'de'));
+    });
+
+    it('falls back to English if the desired language is not found', async () => {
+      const res = await requester().get('/faq?language=wrong');
+      expect(res).to.have.nested.property('stillNeedHelp.ios');
+      expect(res.stillNeedHelp.ios).to.equal(translate('iosFaqStillNeedHelp'));
+    });
+  });
+
+  describe('platform parameter', () => {
+    it('returns faq with answers for ios platform only', async () => {
+      const res = await requester().get('/faq?platform=ios');
+
+      expect(res).to.have.property('stillNeedHelp');
+      expect(res.stillNeedHelp).to.eql({ ios: translate('iosFaqStillNeedHelp') });
+
+      expect(res).to.have.property('questions');
+      expect(res.questions[0]).to.eql({
+        question: translate('faqQuestion0'),
+        ios: translate('iosFaqAnswer0'),
+      });
+    });
+    it('returns an error when invalid platform parameter is specified', async () => {
+      const request = requester().get('/faq?platform=wrong');
+      await expect(request)
+        .to.eventually.be.rejected.and.eql({
+          code: 400,
+          error: 'BadRequest',
+          message: i18n.t('invalidReqParams'),
+        });
+    });
+    it('falls back to "web" description if there is no description for specified platform', async () => {
+      const res = await requester().get('/faq?platform=android');
+      expect(res).to.have.property('stillNeedHelp');
+      expect(res.stillNeedHelp).to.eql({ web: translate('webFaqStillNeedHelp') });
+
+      expect(res).to.have.property('questions');
+      expect(res.questions[0]).to.eql({
+        question: translate('faqQuestion0'),
+        android: translate('androidFaqAnswer0'),
+      });
+    });
+  });
+});

website/common/script/errors/apiErrorMessages.js

@@ -27,4 +27,6 @@ export default {
   missingSubKey: 'Missing "req.query.sub"',
 
   ipAddressBlocked: 'This IP address has been blocked from accessing Habitica. This may be due to a breach of our Terms of Service or technical issue originating at this IP address. For details or to ask to be unblocked, please email admin@habitica.com or ask your parent or guardian to email them. Include your Habitica @ Username or User Id in the email if you have one.',
+
+  invalidPlatform: 'Invalid platform specified',
 };

website/server/controllers/api-v3/content.js

@@ -1,6 +1,6 @@
 import nconf from 'nconf';
 import { langCodes } from '../../libs/i18n';
-import { CONTENT_CACHE_PATH, getLocalizedContent } from '../../libs/content';
+import { CONTENT_CACHE_PATH, getLocalizedContentResponse } from '../../libs/content';
 
 const IS_PROD = nconf.get('IS_PROD');
 
@@ -72,7 +72,7 @@ api.getContent = {
         'Content-Type': 'application/json',
       });
 
-      const jsonResString = getLocalizedContent(language);
+      const jsonResString = getLocalizedContentResponse(language);
       res.status(200).send(jsonResString);
     }
   },

website/server/controllers/api-v4/faq.js

@@ -0,0 +1,77 @@
+import _ from 'lodash';
+import { query } from 'express-validator/check';
+import { langCodes } from '../../libs/i18n';
+import apiError from '../../libs/apiError';
+import common from '../../../common';
+import { localizeContentData } from '../../libs/content';
+
+const { content } = common;
+const { faq } = content;
+
+const api = {};
+
+function _deleteProperties (obj, keysToDelete, platform) {
+  // if there is no description for specified platform, use 'web' description by default
+  if (obj[platform] === undefined) {
+    delete obj.ios;
+    delete obj.android;
+    return;
+  }
+
+  keysToDelete.forEach(key => delete obj[key]);
+}
+
+function _deleteOtherPlatformsAnswers (faqObject, platform) {
+  const faqCopy = _.cloneDeep(faqObject);
+  const keysToDelete = _.without(['web', 'ios', 'android'], platform);
+
+  _deleteProperties(faqCopy.stillNeedHelp, keysToDelete, platform);
+  faqCopy.questions.forEach(question => {
+    _deleteProperties(question, keysToDelete, platform);
+  });
+
+  return faqCopy;
+}
+
+/**
+ * @api {get} /api/v4/faq Get faq in json format
+ * @apiDescription Does not require authentication.
+ * @apiName FaqGet
+ * @apiGroup Content
+ *
+ * @apiParam (Query) {String="bg","cs","da","de",
+ *                   "en","en@pirate","en_GB",
+ *                    "es","es_419","fr","he","hu",
+ *                    "id","it","ja","nl","pl","pt","pt_BR",
+ *                    "ro","ru","sk","sr","sv",
+ *                    "uk","zh","zh_TW"} [language=en] Language code used for the items'
+ *                                                     strings. If the authenticated user makes
+ *                                                     the request, the content will return with
+ *                                                     the user's configured language.
+ *
+ *
+ * @apiSuccess {Object} data FAQ in a json format
+ */
+api.faq = {
+  method: 'GET',
+  url: '/faq',
+  middlewares: [
+    query('platform')
+      .optional()
+      .isIn(['web', 'android', 'ios']).withMessage(apiError('invalidPlatform')),
+  ],
+  async handler (req, res) {
+    const validationErrors = req.validationErrors();
+    if (validationErrors) throw validationErrors;
+
+    const proposedLang = req.query.language && req.query.language.toString();
+    const language = langCodes.includes(proposedLang) ? proposedLang : 'en';
+
+    const { platform } = req.query;
+
+    const dataToLocalize = platform ? _deleteOtherPlatformsAnswers(faq, platform) : faq;
+    res.respond(200, localizeContentData(dataToLocalize, language));
+  },
+};
+
+export default api;

website/server/libs/content.js

@@ -14,8 +14,13 @@ function walkContent (obj, lang) {
   });
 }
 
-export function getLocalizedContent (langCode) {
-  const contentClone = _.cloneDeep(common.content);
-  walkContent(contentClone, langCode);
-  return `{"success": true, "data": ${JSON.stringify(contentClone)}}`;
+export function localizeContentData (data, langCode) {
+  const dataClone = _.cloneDeep(data);
+  walkContent(dataClone, langCode);
+  return dataClone;
+}
+
+export function getLocalizedContentResponse (langCode) {
+  const localizedContent = localizeContentData(common.content, langCode);
+  return `{"success": true, "data": ${JSON.stringify(localizedContent)}}`;
 }