Amnon Mp3PlayerTask

.vscode/settings.json

@@ -0,0 +1,2 @@
+{
+}

index.js

@@ -48,49 +48,230 @@ const player = {
     { id: 5, name: 'Israeli', songs: [4, 5] },
   ],
   playSong(song) {
-    console.log(/* your code here */)
-  },
+    const minutes = Math.floor(song.duration/60);
+    const minutesWithZero = minutes < 10 ? "0" + minutes : minutes;
+    console.log("Playing " + song.title + " from " + song.album + " by " + song.artist + " | " + minutesWithZero + ":" + song.duration%60 + ".");
+  }
 }
 
 function playSong(id) {
-  // your code here
+  const songs = player.songs;
+  for(let i=0; i<songs.length; i++)
+  {
+    if(id===songs[i].id)
+    {
+      player.playSong(songs[i]);
+      return;
+    }
+  }
+  throw new Error('Song id not found.');
 }
 
 function removeSong(id) {
-  // your code here
+  const songs = player.songs;
+  let isSongExist= false;
+  for(let i=0; i<songs.length; i++)
+  {
+    if(id===songs[i].id)
+    {
+      isSongExist=true;
+      songs.splice(i, 1);
+    }
+  }
+  if(!isSongExist) throw new Error('Song id not found.');
+
+  const playlists=player.playlists;
+  for(let j=0; j<playlists.length; j++)
+  {
+    const songIndex=playlists[j].songs.indexOf(id);
+    if(songIndex != -1)
+    {
+     playlists[j].songs.splice(songIndex,1) 
+    }
+  }
 }
 
 function addSong(title, album, artist, duration, id) {
-  // your code here
+ let new_id = 0;
+ duration=duration.split(":");
+ duration= parseInt(duration[0]*60) + parseInt(duration[1]);
+ const songs = player.songs;
+ if(id)
+ {  
+   for(let i=0; i<songs.length; i++)
+   {
+      if(id==songs[i].id)
+      {
+        throw new Error('ERROR: that id is taken.');
+      }
+   }
+   new_id= id;
+ }
+ else{
+   let max=1;
+   for(let j=0; j<songs.length; j++)
+   {
+     if(max<songs[j].id)
+     {
+       max=songs[j].id
+     }
+   }
+   new_id=max+1;
+ }
+ let newSong = {
+   id: new_id,
+   title: title,
+   album: album,
+   artist: artist,
+   duration: duration,
+ }
+ songs.push(newSong);
+ return new_id;
 }
 
 function removePlaylist(id) {
-  // your code here
+  const playlists=player.playlists;
+  let ifIdExist=false;
+  for(let i=0; i<playlists.length; i++)
+  {
+    if(playlists[i].id===id)
+    {
+      playlists.splice(i,1);
+      ifIdExist=true;
+    }
+
+  } 
+  if(!ifIdExist) throw new Error('ERROR: that id is not found.');
 }
 
 function createPlaylist(name, id) {
-  // your code here
+  const playlists= player.playlists;
+  if(!id)
+  {
+    for(let i=0; i<playlists.length; i++)
+    {
+      if(Math.floor(Math.random())!==playlists[i].id)
+      {
+        id=Math.floor(Math.random());
+      }
+
+    }
+    let newPlaylist= 
+      { id: id, name: name, songs: [] };
+    playlists.push(newPlaylist);
+    return id;
+
+
+  }
 }
 
-function playPlaylist(id) {
-  // your code here
+function playPlaylist(newId) 
+{
+  let yes=false;
+  const playlists=player.playlists;
+  for(j=0; j<playlists.length; j++)
+  {
+    if(newId===playlists[i].id)
+    {
+      yes=true;
+    }
+  }
+ for(let i=0; i<playlists[newId].songs.length; i++)
+ {
+   playSong(playlists[newId].songs[i]);
+ }
+ if(yes===false)
+ {
+  throw new Error('ERROR: that id is not found.');
+ }
 }
 
 function editPlaylist(playlistId, songId) {
-  // your code here
+  let songsList= [];
+  let currentPlaylist= {id: 0, name: '', songs: [0]};
+  currentPlaylist=null;
+  const playlists=player.playlists;
+  for(let i=0; i<playlists.length; i++)
+  {
+    if(playlists[i].id===playlistId)
+    {
+      currentPlaylist=playPlaylist[i];
+      songsList= playlists[i].songs;
+      break;
+    }
+    if(i==playlists.length-1)
+    {
+      throw new Error("Not found playlist");
+      return;
+    }
+  }
+  for(j=0; j<songsList.length; j++)
+  {
+    if(songId===songsList[j])
+    {
+      songsList.splice(j,1);
+      if(songsList.length===0)
+      {
+        playlists.splice(j,1);
+      }
+      return;
+    }
+  }
+  songsList.push(songId);
 }
 
-function playlistDuration(id) {
-  // your code here
+function playlistDuration(playlistId) {
+  let totalDuration=0;
+  let songNow=0;
+  const playlists=player.playlists;
+    for(let j=0; j<playlists[playlistId].songs.length; j++)
+    {
+      songNow= playlists[playlistId].songs[j];
+      if(player.songs[id]===songNow)
+      {
+        totalDuration += player.songs[songNow].duration;
+      }
+    }
+  return totalDuration;
 }
 
 function searchByQuery(query) {
-  // your code here
+  let resultObjectSong = [
+    {
+      id: 0,
+      title: '',
+      album: '',
+      artist: '',
+      duration: 0,
+    },];
+    resultObjectSong.pop();
+  let resultObjectPlaylist =[
+    { id: 0, name: '', songs: [0,1,2,3,4,5]},];
+    resultObjectPlaylist.pop();
+  for (let index = 0; index < player.songs.length; index++) {
+    if (player.songs[index].title.includes(query)) {
+      resultObjectSong.push(player.songs[index]);
+    }
+    else if (player.songs[index].album.includes(query)) {
+      resultObjectSong.push(player.songs[index]); 
+    }
+    else if (player.songs[index].artist.includes(query)) {
+      resultObjectSong.push(player.songs[index]); 
+    }
+    for (let j = 0; j < resultObjectSong.length; j++) {
+      player.playSong(resultObjectSong[j])
+    }
+  }
+  for (let t = 0; t < player.playlists.length; t++) {
+    if (player.playlists[t].name) {
+    }  
+  }
 }
 
-function searchByDuration(duration) {
-  // your code here
-}
+
+function searchByDuration(duration)
+ {
+ }
 
 module.exports = {
   player,
@@ -105,3 +286,4 @@ module.exports = {
   searchByQuery,
   searchByDuration,
 }
+