Fixed bug for duplicate song (heavy1)

index.js

@@ -32,10 +32,16 @@ let currentSong = {
   artist: null,
   title: null
 }
-let previousSong = {
-  artist: null,
-  title: null
-}
+const previousSongs = [
+  {
+    artist: null,
+    title: null
+  },
+  {
+    artist: null,
+    title: null
+  }
+]
 
 // Initialisation du bot IRC
 const bot = new irc.Client(process.env.IRC_SERVER, process.env.IRC_NICKNAME, {
@@ -45,8 +51,7 @@ const bot = new irc.Client(process.env.IRC_SERVER, process.env.IRC_NICKNAME, {
   channels: [process.env.IRC_CHANNEL]
 })
 
-const checkCurrentSong = () => {
-  previousSong = currentSong
+const displayCurrentSong = () => {
   // Just for debug
   console.info(`Now playing: ${currentSong.artist} - ${currentSong.title}`)
 
@@ -89,7 +94,7 @@ if (!process.env.STREAM_TYPE || process.env.STREAM_TYPE === 'radio') {
       artist: artist
     }
 
-    checkCurrentSong()
+    displayCurrentSong()
   })
 } else {
   setInterval(() => {
@@ -137,8 +142,13 @@ if (!process.env.STREAM_TYPE || process.env.STREAM_TYPE === 'radio') {
               break
           }
 
-          if (currentSong.title && currentSong.artist && previousSong.title !== currentSong.title && previousSong.artist !== currentSong.artist) {
-            checkCurrentSong()
+          if (currentSong.title && currentSong.artist &&
+            (previousSongs[0].title !== currentSong.title && previousSongs[0].artist !== currentSong.artist) &&
+            (previousSongs[1].title !== currentSong.title && previousSongs[1].artist !== currentSong.artist)
+          ) {
+            previousSongs[1] = previousSongs[0]
+            previousSongs[0] = currentSong
+            displayCurrentSong()
           }
         } catch (e) {
           error = e