<?php
/*
Plugin Name: VideoJS
Version: 1.0.1
Description: videojs integration for piwigo
Plugin URI: http://piwigo.org/ext/extension_view.php?eid=610
Author: xbmgsharp
Author URI: https://github.com/xbgmsharp/piwigo-videojs
*/

// Chech whether we are indeed included by Piwigo.
if (!defined('PHPWG_ROOT_PATH')) die('Hacking attempt!');

// Define the path to our plugin.
define('VIDEOJS_PATH', PHPWG_PLUGINS_PATH . basename(dirname(__FILE__)).'/');

global $conf;

// Prepare configuration
$conf['vjs_conf'] = unserialize($conf['vjs_conf']);

// Register the allowed extentions to the global conf in order
// to sync them with other contents
$vjs_extensions = array(
    'ogg',
    'mp4',
    'm4v',
    'ogv',
    'webm',
    'webmv',
);
$conf['file_ext'] = array_merge ($conf['file_ext'], $vjs_extensions, array_map('strtoupper', $vjs_extensions) );

// Hook on to an event to display videos as standard images
add_event_handler('render_element_content', 'vjs_render_media', 40, 2);

// Hook to display a fallback thumbnail if not defined
add_event_handler('get_mimetype_location', 'vjs_get_mimetype_icon', 60, 2);

// Hook to change the picture data to template
//add_event_handler('picture_pictures_data', 'vjs_pictures_data');

// Hook to sync geotag metadata on upload or sync
//add_event_handler('format_exif_data', 'vjs_format_exif_data', EVENT_HANDLER_PRIORITY_NEUTRAL, 3);

// If admin do the init
if (defined('IN_ADMIN')) {
	include_once(VIDEOJS_PATH.'/admin/admin_boot.php');
}

function vjs_format_exif_data($exif, $file, $map)
{

}

function vjs_render_media($content, $picture)
{
	global $template, $picture, $page, $conf, $user, $refresh;
	//print_r( $picture['current']);
	// do nothing if the current picture is actually an image !
	if ( (array_key_exists('src_image', @$picture['current'])
		&& @$picture['current']['src_image']->is_original()) )
	{
		return $content;
	}

	// In case, the we handle a large video, we define a MAX_WIDTH
	// variable to limit the display size.
	if (isset($user['maxwidth']) and $user['maxwidth']!='')
	{
		$MAX_WIDTH = $user['maxwidth'];
	}
	else
	{
		$MAX_WIDTH = isset($conf['vjs_conf']['max_width']) ? $conf['vjs_conf']['max_width'] : '720';
	}
	//print "$MAX_WIDTH=" . $MAX_WIDTH;
	//print_r($user);

	// Avoid Conflict with other plugin using getID3
	if( !class_exists('getID3')){
		// Get video infos with getID3 lib
		require_once(dirname(__FILE__) . '/include/getid3/getid3.php');
	}
	$getID3 = new getID3;
	$fileinfo = $getID3->analyze($picture['current']['path']);
	//print "getID3\n";
	//print_r($fileinfo);

	$extension = strtolower(get_extension($picture['current']['path']));
	if ($extension == "m4v")
	{
		$extension = "mp4";
	}
	else if ($extension == "webmv")
	{
		$extension = "webm4";
	}
	else if ($extension == "ogv")
	{
		$extension = "ogg";
	}
	//print "extension\n";
	//print_r($extension);

	if(isset($fileinfo['video']))
	{
		// -- video file --
		// guess resolution
		if (isset($fileinfo['video']['resolution_x']) )
		{
			$width = $fileinfo['video']['resolution_x'];
		}
		if (isset($fileinfo['video']['resolution_y']) )
		{
			$height = $fileinfo['video']['resolution_y'];
		}
		if ( !isset($width) || !isset($height))
		{
			// If guess was unsuccessful, fallback to default 16/9 resolution
			// This is the case for ogv video for example.
			$width = $MAX_WIDTH;
			$height = intval( 9 * ($width / 16 ));
		}
	}
	else // Not a supported video format or an image
	{
		return $content;
	}

	// Resize if video is too large
	if ( $width > $MAX_WIDTH )
	{
		//$height = intval($height * ($MAX_WIDTH / $width));
		//$width  = $MAX_WIDTH;
		$height = intval($height / 2);
		$width = intval($width / 2);
	}

	// Slideshow : The video needs to be launch automatically in
	// slideshow mode. The refresh of the page is set to the
	// duration of the video.
	$autoplay = isset($conf['vjs_conf']['autoplay']) ? strbool($conf['vjs_conf']['autoplay']) : 'false';
	if ( $page['slideshow'] )
	{
		$refresh = $fileinfo['playtime_seconds'];
		$autoplay = 'true';
	}

	// Load parameter, fallback to default if unset
	$skin = isset($conf['vjs_conf']['skin']) ? $conf['vjs_conf']['skin'] : 'vjs-default-skin';
	$customcss = isset($conf['vjs_customcss']) ? $conf['vjs_customcss'] : '';
	$preload = isset($conf['vjs_conf']['preload']) ? $conf['vjs_conf']['preload'] : 'none';
	$loop = isset($conf['vjs_conf']['loop']) ? strbool($conf['vjs_conf']['loop']) : 'false';
	$controls = isset($conf['vjs_conf']['controls']) ? strbool($conf['vjs_conf']['controls']) : 'false';

	// Assing the CSS file according to the skin
	$skincss = "";
	if ($skin == 'vjs-default-skin')
	{
		$skincss = "video-js.min.css";
	} else if ($skin == 'vjs-darkfunk-skin')
	{
		$skincss = "darkfunk-skin.css";
	} else if ($skin == 'vjs-redsheen-skin')
	{
		$skincss = "redsheen-skin.css";
	}

	// Select the template
	$template->set_filenames(
		array('vjs_content' => dirname(__FILE__)."/template/vjs-player.tpl")
	);

	// Try to guess the poster extension
	$parts = pathinfo($picture['current']['element_url']);
	$poster = getposterfile (Array(
		$fileinfo['filepath']."/".$parts['filename'].".png" =>
			get_gallery_home_url() . $parts['dirname'] . "/".$parts['filename'].".png",
		$fileinfo['filepath']."/".$parts['filename'].".jpg" =>
			get_gallery_home_url() . $parts['dirname'] . "/".$parts['filename'].".jpg",
		$fileinfo['filepath']."/thumbnail/TN-".$parts['filename'].".jpg" =>
			get_gallery_home_url() . $parts['dirname'] . "/thumbnail/TN-".$parts['filename'].".jpg",
		$fileinfo['filepath']."/thumbnail/TN-".$parts['filename'].".png" =>
			get_gallery_home_url() . $parts['dirname'] . "/thumbnail/TN-".$parts['filename'].".png",
		$fileinfo['filepath']."/pwg_representative/".$parts['filename'].".jpg" =>
			get_gallery_home_url() . $parts['dirname'] . "/pwg_representative/".$parts['filename'].".jpg",
		$fileinfo['filepath']."/pwg_representative/".$parts['filename'].".png" =>
			get_gallery_home_url() . $parts['dirname'] . "/pwg_representative/".$parts['filename'].".png",
	));
	//print $poster;

	// Genrate HTML5 tags
	// Why the data-setup attribute does not work if only one video
	$options = "";
	if ($controls == "true")
	{
		$options .= "controls";
	}
	if ($autoplay == "true")
	{
		$options .= " autoplay ";
	}
	if ($loop == "true")
	{
		$options .= " loop ";
	}
	$options .= ' preload="'. $preload .'"';

	// Assign the template variables
	// We use here the piwigo's get_gallery_home_url function to build
	// the full URL as suggested by videojs for flash fallback compatibility
	$template->assign(
		array(
			'VIDEOJS_MEDIA_URL'	=> embellish_url(get_gallery_home_url() . $picture['current']['element_url']),
			'VIDEOJS_POSTER_URL'	=> $poster,
			'VIDEOJS_PATH'		=> VIDEOJS_PATH,
			'VIDEOJS_FULLPATH'	=> realpath(dirname(__FILE__)),
			'WIDTH'			=> $width,
			'HEIGHT'		=> $height,
			'TYPE'			=> $extension,
			'OPTIONS'		=> $options,
			'VIDEOJS_SKIN'		=> $skin,
			'VIDEOJS_SKINCSS'	=> $skincss,
			'VIDEOJS_CUSTOMCSS'	=> $customcss,
		)
	);

	// Return the rendered html
	$vjs_content = $template->parse('vjs_content', true);
	return $vjs_content;
}

function vjs_get_mimetype_icon ($location, $element_info)
{
	$location= 'plugins/'
		. basename(dirname(__FILE__))
		. '/mimetypes/' . $element_info . '.png';
	return $location;
}

function strbool($value)
{
	return $value ? 'true' : 'false';
}

function getposterfile($file_list)
{
	foreach ($file_list as $file=>$url) {
		//print $file."=>".$url."<br/>\n";
		if (file_exists($file)) return $url;
	}
	return '';
}

function vjs_dbSet($fields, $data = array())
{
    if (!$data) $data = &$_POST;
    $set='';
    foreach ($fields as $field)
    {
        if (isset($data[$field]))
        {
            $set.="`$field`='".pwg_db_real_escape_string($data[$field])."', ";
        }
    }
    return substr($set, 0, -2);
}

?>