/* 
    File: CreateAlbumPlaylists.js
     
    Version: 1.0 

    Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc. 
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                please do not use, install, modify or redistribute this Apple software. 

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                to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs 
                copyrights in this original Apple software (the "Apple Software"), to use, 
                reproduce, modify and redistribute the Apple Software, with or without 
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                the Apple Software in its entirety and without modifications, you must retain 
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                Apple Computer, Inc. may be used to endorse or promote products derived from the 
                Apple Software without specific prior written permission from Apple.  Except as 
                expressly stated in this notice, no other rights or licenses, express or implied, 
                are granted by Apple herein, including but not limited to any patent rights that 
                may be infringed by your derivative works or by other works in which the Apple 
                Software may be incorporated. 

                The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO 
                WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED 
                WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
                PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN 
                COMBINATION WITH YOUR PRODUCTS. 

                IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR 
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    Copyright © 2004 Apple Computer, Inc., All Rights Reserved 
*/ 


var	iTunesApp = WScript.CreateObject("iTunes.Application");
var	mainLibrary = iTunesApp.LibraryPlaylist;
var	mainLibrarySource = iTunesApp.LibrarySource;
var	tracks = mainLibrary.Tracks;
var	numTracks = tracks.Count;
var numPlaylistsCreated = 0;
var	i;

// FIXME take a -v parameter eventually
var verbose = false;

// first, make an array indexed by album name
var	albumArray = new Array();

for (i = 1; i <= numTracks; i++)
{
	var	currTrack = tracks.Item(i);
	var	album = currTrack.Album;
	
	if ((album != undefined) && (album != ""))
	{
		if (albumArray[album] == undefined)
		{
			if (verbose)
				WScript.Echo("Adding album " + album);
			albumArray[album] = new Array();
		}
		
		// add the track to the entry for this album
		albumArray[album].push(currTrack);
	}
}

for (var albumNameKey in albumArray)
{
	var albumPlayList;
	var trackArray = albumArray[albumNameKey];

	if (verbose)
		WScript.Echo("Creating playlist " + albumNameKey);
	
	numPlaylistsCreated++;
	
	albumPlaylist = iTunesApp.CreatePlaylist(albumNameKey);
	
	for (var trackIndex in trackArray)
	{
		var		currTrack = trackArray[trackIndex];
		
		if (verbose)
			WScript.Echo("   Adding " + currTrack.Name);
		
		albumPlaylist.AddTrack(currTrack);
	}
}

if (numPlaylistsCreated == 0)
{
	WScript.Echo("No playlists created.");
}
else if (numPlaylistsCreated == 1)
{
	WScript.Echo("Created 1 playlist.");
}
else
{
	WScript.Echo("Created " + numPlaylistsCreated + " playlists.");
}
