<?
// ############################################################################
// ## mp3radio.php                                                           ##
// ## 476 Project -- MP3 Radio                                               ##
// ##                                                                        ##
// ## David Chai (dtc24)                                                     ##
// ## Jian Gong (jg253)                                                      ##
// ############################################################################


$extension = "php_gtk" . (strpos(PHP_OS, "WIN") >= 0 ? ".dll" : ".so");
dl($extension);

$window = &new GtkWindow();
$window->set_title("The Ultimate MP3 Radio");
$window->set_usize(400, 375);
$window->set_position(GTK_WIN_POS_CENTER);
$window->set_policy(false, false, false);
$window->set_border_width(10);

$frame = &new GtkFrame(" Come on guys! Let's do the ECE dance...");
$window->add($frame);

// set a callback function for the destroy signal
$window->connect("destroy", "killwin");
function killwin() {
    echo "Window destroyed!\n ";
    gtk::main_quit();
}

// IMPORTANT: directory playlist is stored at!! <-- used by many scripts/functions
$dir = ".\playlist\\";
global $dir;

// CREATE MAIN BOX
$box1 = &new GtkVBox();
$box1->set_border_width(8);
$frame->add($box1);

// ############################################################################
// ## GENERATE MP3 PLAYLIST ###################################################
// ############################################################################
function genPl() {
    global $dir;
    $fold = opendir($dir);
    while (($file = readdir($fold)))
	if ((stristr($file, ".mp3"))) {
	    $temp = &new GtkListItem($file);
	    $temp->set_data('name', $file);
	    $plEntries[] = $temp;
    }
    global $totSongs; // define as global to be used by refreshPl()
    $totSongs = count($plEntries);

    return $plEntries;
}
global $scrolled_window;
$scrolled_window = &new GtkScrolledWindow();
$scrolled_window->set_policy(GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

global $playlist;
$playlist = &new GtkList();
$playlist->set_selection_mode(GTK_SELECTION_BROWSE);
$plEntries = genPl();
$playlist->append_items($plEntries);

$scrolled_window->set_usize(400,250);
$scrolled_window->add_with_viewport($playlist);

$box1->pack_start($scrolled_window);

// ############################################################################
// ## BUTTON PANES ############################################################
// ############################################################################
// CREATE 2 BOTTOM PANES FOR 2 ROWS OF BUTTONS
//
//  	[  Upload New MP3  ]		[Remove Song from Playlist]
//	[  Start Broadcast ]		[      Close Program      ]
//
// ############################################################################
// BOTTOM BUTTON PANE 1
$bpButtons1 = &new GtkHButtonBox();
$bpButtons1->set_layout(GTK_BUTTONBOX_SPREAD);
$box1->add($bpButtons1);
// BOTTOM BUTTON PANE 2
$bpButtons2 = &new GtkHButtonBox();
$bpButtons2->set_layout(GTK_BUTTONBOX_SPREAD);
$box1->add($bpButtons2);

	// ############################################
	// ## Button1: UPLOAD MP3 STUFF ###############
	// ############################################
	// BUTTON: "Upload MP3s"
	$button = &new GtkButton('Upload New MP3 File');
	$button->connect('clicked', 'fileUpload');
	$bpButtons1->add($button);

	// MP3 Upload Window
	function fileUpload() {
	    $fs = &new GtkFileSelection('File Selection Example');
	    $fs->complete("*.mp3");
	    $ok_button = $fs->ok_button;
	    $ok_button->connect_object('clicked', 'uploadMP3', $fs);
	    $cancel_button = $fs->cancel_button;
	    $cancel_button->connect('clicked', 'canceldialog');
	    $cancel_button->connect_object('clicked', array($fs, 'destroy'));
	    $fs->show();
	}

	// "Upload" MP3
	function uploadMP3($fs) {
	    $mp3 = $fs->get_filename();
	    $getName = explode("\\", $mp3);
	    $nameIs = $getName[count($getName)-1];

	    global $dir;
	    copy($mp3, $dir.$nameIs);
	    refreshPl();
	    $fs->destroy();
	}

	// ############################################
	// ## Button2: REMOVE SONG STUFF ##############
	// ############################################
	// BUTTON: "Remove Song"
	$button = &new GtkButton('Remove Song from Playlist');
	$button->connect_object('clicked', 'removeSong', $playlist, $plEntries);
	$bpButtons1->add($button);

	// FUNCTION: remove mp3 from playlist
	function removeSong($list, $plEntries) {
	    $mp3item = $list->selection[0];
	    $mp3 = $mp3item->get_data('name');
	    global $dir;
	    unlink($dir.$mp3);
	    refreshPl();
	}

	// ############################################
	// ## Button3: START BROADCAST STUFF ##########
	// ############################################
	// BUTTON: "Start Broadcast"
	$button = &new GtkButton('Start MP3 Broadcast (FM)');
	$button->connect_object('clicked', 'runSerialOut', $window);
	$bpButtons2->add($button);

	// FUNCTION: run serialOut.exe -- terminal window that sends MP3 data to COM1
	function runSerialOut($window) {
	    $window->hide_all();
	    exec("serialOut");
	}

	// ############################################
	// ## Button4: CLOSE PROGRAM STUFF ############
	// ############################################
	// BUTTON: "Close Program"
	$button = &new GtkButton('Close Program');
	$button->connect('clicked', 'destroy');
	$bpButtons2->add($button);

	// FUNCTION: destroy (close) window 
	function destroy() {
	    Gtk::main_quit();
	}


// ############################################################################################
// ## OTHER FUNCTIONS STUFF ###################################################################
// ############################################################################################
// FUNCTION: refresh playlist
function refreshPl() {
    global $playlist;
    global $totSongs;
    $playlist->clear_items(0, $totSongs);
    $plEntries = genPl();
    $playlist->append_items($plEntries);
    $playlist->show_all(); // <-- annoying tedious step!!
}

// FINAL INITIALIZIATION
$window->show_all();
gtk::main();

?>