<?php

/**
 * @file
 * 
 */
/*
 * Implements hook_menu().
 */
function videojs_filter_menu() {

  $items = array();

  $items['admin/config/media/videojs_filter'] = array(
    'title' => 'VideoJS Filter',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('videojs_filter_settings_form'),
    'access arguments' => array('administer site configuration'),
    'description' => 'Configure the settings for the VideoJS Filter module.',
  );

  return $items;
}

/**
 *  create settings form
 *
 */
function videojs_filter_settings_form() {

  $form = array();

  $form['videojs_filter_video_directory'] = array(
    '#type' => 'textfield',
    '#title' => t('Video folder'),
    '#default_value' => variable_get('videojs_filter_video_directory', ''),
    '#field_prefix' => file_create_url('public://'),
    '#required' => TRUE,
  );

  $form['videojs_filter_poster_directory'] = array(
    '#type' => 'textfield',
    '#title' => t('Poster folder'),
    '#default_value' => variable_get('videojs_filter_poster_directory', ''),
    '#field_prefix' => file_create_url('public://'),
    '#required' => TRUE,
  );

  $form['videojs_filter_poster_file'] = array(
    '#type' => 'textfield',
    '#title' => t('Default poster file'),
    '#default_value' => variable_get('videojs_filter_poster_file', ''),
    '#required' => TRUE,
  );

  $form['videojs_filter_width'] = array(
    '#type' => 'textfield',
    '#title' => t('Default player width'),
    '#default_value' => variable_get('videojs_filter_width', 320),
    '#required' => TRUE,
  );

  $form['videojs_filter_height'] = array(
    '#type' => 'textfield',
    '#title' => t('Default player height'),
    '#default_value' => variable_get('videojs_filter_height', 240),
    '#required' => TRUE,
  );

  $form = system_settings_form($form);
  $form['#validate'][] = 'videojs_filter_settings_form_validate';
  $form['#submit'][] = 'videojs_filter_settings_form_submit';

  return $form;
}

/**
 * Validation function to validate the videojs_filter_settings_form() form.
 */
function videojs_filter_settings_form_validate($form, &$form_state) {

  $path_video = $form_state['values']['videojs_filter_video_directory'];
  if (!file_exists(drupal_realpath('public://') . '/' . $path_video)) {
    form_error($form['videojs_filter_video_directory'], t('The video folder is not exist.'));
  }

  $path_poster = $form_state['values']['videojs_filter_poster_directory'];
  if (!file_exists(drupal_realpath('public://') . '/' . $path_poster)) {
    form_error($form['videojs_filter_poster_directory'], t('The poster folder is not exist.'));
  }

  $poster_file = $form_state['values']['videojs_filter_poster_file'];
  if (!file_exists(drupal_realpath('public://') . '/' . $path_poster . '/' . $poster_file)) {
    form_error($form['videojs_filter_poster_file'], t('The default poster file is not exist.'));
  }

  if (!ctype_digit($form_state['values']['videojs_filter_width'])) {
    form_error($form['videojs_filter_width'], t('Default player width - incorrect value.'));
  }

  if (!ctype_digit($form_state['values']['videojs_filter_height'])) {
    form_error($form['videojs_filter_height'], t('Default player height - incorrect value.'));
  }
}

/**
 * Submit handler for the videojs_filter_settings_form() form.
 */
function videojs_filter_settings_form_submit($form, &$form_state) {

  variable_set('videojs_filter_video_directory', $form_state['values']['videojs_filter_video_directory']);
  variable_set('videojs_filter_poster_directory', $form_state['values']['videojs_filter_poster_directory']);
  variable_set('videojs_filter_poster_file', $form_state['values']['videojs_filter_poster_file']);
  variable_set('videojs_filter_width', $form_state['values']['videojs_filter_width']);
  variable_set('videojs_filter_height', $form_state['values']['videojs_filter_height']);
}

/*
 * Implements hook_filter_info().
 */

function videojs_filter_filter_info() {

  $filters['videojs_filter'] = array(
    'title' => t('VideoJS Filter'),
    'description' => t('Replace [videojs:{video_file}|poster:{poster_file}|width:{width}|height:{height}] to video with VideoJS player. {video_file} is required argument.'),
    'prepare callback' => '_videojs_filter_filter_prepare',
    'process callback' => '_videojs_filter_filter_process',
    'tips callback' => '_videojs_filter_filter_tips',
  );

  return $filters;
}

/**
 * filter prepare callback.
 */
function _videojs_filter_filter_prepare($text, $filter) {

  return $text;
}

/**
 * Time filter process callback.
 */
function _videojs_filter_filter_process($text, $filter) {

  preg_match_all("/(\[)videojs(\:)[^\]]*(\])/s", $text, $matches);
  $orig_match = array();
  $html_code = array();
  $public_uri = 'public://';
  $video_dir = variable_get('videojs_filter_video_directory');
  $poster_dir = variable_get('videojs_filter_poster_directory');
  $poster_file = variable_get('videojs_filter_poster_file');
  $player_width = variable_get('videojs_filter_width', 320);
  $player_height = variable_get('videojs_filter_height', 240);
  $i = 0;
  foreach ($matches[0] as $match) {
    $attr = array();
    $file = array();
    $orig_match[] = $match;
    $match = str_replace(array('[', ']', '{', '}'), '', $match);
    $options = explode('|', $match);
    foreach ($options as $index => $opt) {
      $tmp = explode(':', $opt);
      $attr[$tmp[0]] = trim($tmp[1]);
    }

    if (isset($attr['videojs'])) {
      $videojs = $attr['videojs'];
      if (stristr($videojs, ',')) {
        // More than one video file type
        $vtypes = explode(',', $videojs);
      }
      else {
        // Only one video file type
        $vtypes = array($videojs);
      }
      $items_video = array();
      foreach ($vtypes as $vtype) {
        $file_ext = pathinfo($vtype);
        $uri = $public_uri . $video_dir . '/' . $vtype;
        $file['uid'] = 1;
        $file['display'] = 1;
        $file['filename'] = $vtype;
        $file['filemime'] = 'video/' . $file_ext['extension'];
        $file['filesize'] = filesize($uri);
        $file['uri'] = $uri;
        $file['status'] = 1;
        $items_video[$file_ext['extension']] = $file;
      }
      $file_poster['uri'] = (isset($attr['poster'])) ? $public_uri . $poster_dir . '/' . $attr['poster'] : $public_uri . $poster_dir . '/' . $poster_file;
      $file_ext = pathinfo($file_poster['uri']);
      $file_poster['filemime'] = 'image/' . $file_ext['extension'];
      $items_video['poster'] = $file_poster;

      $attributes['width'] = (isset($attr['width'])) ? $attr['width'] : $player_width;
      $attributes['height'] = (isset($attr['height'])) ? $attr['height'] : $player_height;

      $html_code[] = '<div id="videojs-filter-wrapper-video-' . $i . '">' . theme('videojs', array('items' => $items_video, 'player_id' => 'videojs-header-' . $i, 'attributes' => $attributes)) . '</div>';
      $i++;
    }
  }
  $text = str_replace($orig_match, $html_code, $text);

  return $text;
}

/**
 *  Tips
 */
function _videojs_filter_filter_tips($filter, $format, $long = FALSE) {

  return t('<em>Replace [videojs:{video_file}|poster:{poster_file}|width:{width}|height:{height}]</em> to video with VideoJS player.');
}

/**
 *  Implement Hook_init
 */
function videojs_filter_init() {

  videojs_add();
}