fix: can not star bug also add test

lib/plugins/leetcode.js

@@ -360,31 +360,25 @@ plugin.getSubmission = function(submission, cb) {
 
 plugin.starProblem = function(problem, starred, cb) {
   log.debug('running leetcode.starProblem');
-  const opts = plugin.makeOpts();
+  const user = session.getUser();
+  const operationName = starred ? 'addQuestionToFavorite' : 'removeQuestionFromFavorite';
+  const opts = plugin.makeOpts(config.sys.urls.graphql);
   opts.headers.Origin = config.sys.urls.base;
   opts.headers.Referer = problem.link;
 
-  const user = session.getUser();
-  if (starred) {
-    opts.url = config.sys.urls.favorites;
-    opts.method = 'POST';
-    opts.json = true;
-    opts.body = {
-      favorite_id_hash: user.hash,
-      question_id:      problem.id
-    };
-  } else {
-    opts.url = config.sys.urls.favorite_delete
-        .replace('$hash', user.hash)
-        .replace('$id', problem.id);
-    opts.method = 'DELETE';
-  }
+  opts.json = true;
+  opts.body = {
+    query:         `mutation ${operationName}($favoriteIdHash: String!, $questionId: String!) {\n  ${operationName}(favoriteIdHash: $favoriteIdHash, questionId: $questionId) {\n    ok\n    error\n    favoriteIdHash\n    questionId\n    __typename\n  }\n}\n`,
+    variables:     {favoriteIdHash: user.hash, questionId: '' + problem.id},
+    operationName: operationName
+  };
 
-  request(opts, function(e, resp, body) {
-    e = plugin.checkError(e, resp, 204);
+  const spin = h.spin(starred? 'star': 'unstar' + 'problem');
+  request.post(opts, function(e, resp, body) {
+    spin.stop();
+    e = plugin.checkError(e, resp, 200);
     if (e) return cb(e);
-
-    cb(null, starred);
+    return cb(null, starred);
   });
 };
 

test/mock/find-the-difference-star.json.20200821

@@ -0,0 +1 @@
+{"data":{"addQuestionToFavorite":{"ok":true,"error":null,"favoriteIdHash":"","questionId":"389","__typename":"AddQuestionToFavorite"}}}

test/mock/find-the-difference-unstar.json.20200821

@@ -0,0 +1 @@
+{"data":{"removeQuestionFromFavorite":{"ok":true,"error":null,"favoriteIdHash":"","questionId":"389","__typename":"RemoveQuestionFromFavorite"}}}

test/plugins/test_leetcode.js

@@ -508,8 +508,8 @@ describe('plugin:leetcode', function() {
   describe('#starProblem', function() {
     it('should star ok', function(done) {
       nock('https://leetcode.com')
-        .post('/list/api/questions')
-        .reply(204, '');
+        .post('/graphql')
+        .replyWithFile(200, './test/mock/find-the-difference-star.json.20200821'); 
 
       plugin.starProblem(PROBLEM, true, function(e, starred) {
         assert.equal(e, null);
@@ -520,8 +520,8 @@ describe('plugin:leetcode', function() {
 
     it('should unstar ok', function(done) {
       nock('https://leetcode.com')
-        .delete('/list/api/questions/abcdef/389')
-        .reply(204, '');
+        .post('/graphql')
+        .replyWithFile(200, './test/mock/find-the-difference-unstar.json.20200821'); 
 
       plugin.starProblem(PROBLEM, false, function(e, starred) {
         assert.equal(e, null);
@@ -532,7 +532,7 @@ describe('plugin:leetcode', function() {
 
     it('should star fail if http error', function(done) {
       nock('https://leetcode.com')
-        .post('/list/api/questions')
+        .post('/graphql')
         .replyWithError('unknown error!');
 
       plugin.starProblem(PROBLEM, true, function(e, starred) {