Distinguish id being played

@@ -21,6 +21,7 @@ app.use(bodyParser.json());
 app.post('/hook', function (req, res) {
 
   var eventObj = req.body.events[0];
+  console.log(eventObj);
   var source = eventObj.source;
   var message = eventObj.message;
 
@@ -30,15 +31,89 @@ app.post('/hook', function (req, res) {
   console.log('[request source] ', source);
   console.log('[request message]', message);
 
-  wordchain(eventObj.replyToken, message.text);
+
+  wordchain(eventObj.replyToken, message.text, source.userId);
 
 
   res.sendStatus(200);
 });
 
-function wordchain(replyToken, message) {
+var playingId = [];
+function isCommand(message)
+{
+		return message == '/시작' || message == '/종료' ? true : false;
+}
 
-  let letter = message.slice(-1);
+function wordchain(replyToken, message, userId) {
+  if (isCommand(message)){
+
+    if(message == '/시작') {
+    playingId.push(userId);
+    request.post(
+      {
+          url: TARGET_URL,
+          headers: {
+              'Authorization': `Bearer ${TOKEN}`
+          },
+          json: {
+              "replyToken":replyToken,
+              "messages":[
+                  {
+                      "type":"text",
+                      "text": "게임이 시작되었습니다.\n단어를 제시해주세요"
+                  }
+              ]
+          }
+      },(error, response, body) => {
+          console.log(body);
+      });
+    } else {
+      var num = playingId.indexOf(userId);
+      playingId.splice(num, 1);
+      request.post(
+        {
+            url: TARGET_URL,
+            headers: {
+                'Authorization': `Bearer ${TOKEN}`
+            },
+            json: {
+                "replyToken":replyToken,
+                "messages":[
+                    {
+                        "type":"text",
+                        "text": "게임이 종료되었습니다."
+                    }
+                ]
+            }
+        },(error, response, body) => {
+            console.log(body);
+        });
+    };
+  } else {
+
+    if(!playingId.includes(userId)) {
+      request.post(
+         {
+          url: TARGET_URL,
+          headers: {
+              'Authorization': `Bearer ${TOKEN}`
+          },
+          json: {
+              "replyToken":replyToken,
+              "messages":[
+                  {
+                      "type":"text",
+                      "text": "안녕하세요. 끝말잇기봇입니다.\n-표준어 내의 명사만 가능\n\t(표준국어대사전에 근거)\n-한 글자 단어 금지\n-중복 단어 금지\n시작: '/시작', 종료: '/종료' 입력"
+                  }
+              ]
+          }
+      },(error, response, body) => {
+          console.log(body);
+      });
+    } else {
+      var word = message;
+      let letter = word.slice(-1);
+      console.log(letter);
 
       request.post(
       {
@@ -56,9 +131,6 @@ function wordchain(replyToken, message) {
               var nextword = parsedData.channel.item[0].word;
               var word_definition = parsedData.channel.item[0].sense.definition;
   
-         
-
-              
               request.post(
                       {
                       url: TARGET_URL,
@@ -70,11 +142,7 @@ function wordchain(replyToken, message) {
                           "messages":[
                               {
                                   "type":"text",
-                                  "text":nextword
-                              },
-                              {
-                                  "type":"text",
-                                  "text":': ' + word_definition
+                                  "text":nextword + ': ' + word_definition
                               }
                           ]
                       }
@@ -83,7 +151,8 @@ function wordchain(replyToken, message) {
                   });
           }
       });
-
+    }
+  }
 }
 
 //SSL