/split/split.php

<?php

if ((isset($_POST['submit'])) && ($_POST['tracks'] > '')) {

	$correct_format = true;

	$message = '';

	$split = 1000;

	$count = 0;

	$tracks = $_POST['tracks'];



	if (correctTracksFormat($tracks)) {

		$list = preg_split('/[\n\r]+/',$tracks);

		$list = array_filter($list,'strlen');

		$list = tracksGetSpotifyURIs($list); 		// returns an array of Spotif URIs: spotify:track:<URI>

	} else {

   		$correct_format = false;

		$messages[] = "<p style='font-size:12px;'>&nbsp;<br/>Please apply valid tracks by HTTP or Spotify URI.</p>";

	}

	

	if ($_POST['split'] > 0) {

		$split = $_POST['split'];

	}



	if ($correct_format) {

		if (isset($_POST['random'])) {

			shuffle($list); 						//randomize the list of tracks

		}

		

		// split list

		$number_of_tracks = count($list);

		foreach ($list as $uri) {

			$tracklist[$count] = $uri;

			$count++;

			if (($count == $split) || ($count == $number_of_tracks)){

				$number_of_tracks = $number_of_tracks - $count;

				$lists[] = $tracklist;

				unset($tracklist);

				$count = 0;

			}

		}

		

		echo "<h3>".count($list)." tracks split up into ".count($lists)." lists:</h3><br/>

				Select the tracks by clicking inside the textarea and use CTRL-C or right click to copy, or just drag them to an empty playlist.<br/>&nbsp;<br/></p>";

		foreach ($lists as $i => $newlist) {

			echo "List ".($i+1).": ".count($newlist)." tracks:

				<textarea name='randomlist' rows='10' cols='52' wrap='off' onClick='select(this)' wrap='off' readonly>";

			foreach ($newlist as $uri) {

				echo $uri."\r\n";

			}

			echo "</textarea><br/><br/>";

		}

	} else {

		foreach ($messages as $message) {

			echo $message;

		}

	}

	

}	

?>