<?php

/**
* Implementation of hook_field_formatter_info().
*/
function filefieldmp3player_field_formatter_info() {
  $formatters = array();
  $players = mp3player_players();
  foreach($players as $player) {
    $formatters['mp3player_'. $player['name']] = array(
      'label' => t('MP3 Player ('.$player['name'].')'),
      'field types' => array('filefield')
    );
  }
  return $formatters;
}

/**
 * Implementation of hook_theme().
 */
function filefieldmp3player_theme() {
  $path = drupal_get_path('module', 'filefieldmp3player') .'/theme';
  $theme = array();
  $players = mp3player_players();

  foreach($players as $player) {
    $theme['filefieldmp3player_formatter_mp3player_'. $player['name']] = array(
      'arguments' => array('element' => NULL),
      'function' => 'theme_filefieldmp3player_formatter_mp3player',
    );
  }
  
  $theme['filefieldmp3player_description'] = array(
    'template' => 'description',
    'arguments' => array(
      'id3' => array(),
    ),
    'path' => $path,
    );
  return $theme;
}

/**
 * Formatter theme function for file fields presented as a Flash MP3 Player.
 */
function theme_filefieldmp3player_formatter_mp3player($element) {
  $item = $element['#item'];
  if(empty($item['filepath']) || $item['list'] == "0") {
    return FALSE;
  }
  $description = $item['filename'];
  $title = $artist = NULL;
  if(variable_get('mp3player_description', 'description') == 'id3' &&
                   module_exists('getid3') &&
                   getid3_load() == TRUE
  ) {
    $id3 = getid3_analyze($item['filepath']);
    $title = $id3['tags']['id3v2']['title'][0];
    $artist = $id3['tags']['id3v2']['artist'][0];
    $description = theme('filefieldmp3player_description', $id3);
  }
  else if(isset($item['data']['description'])) {
    //Data straight from node isn't serialized
    $description = $item['data']['description'];
  }
  else if(gettype($item['data']) == 'string' && is_array(unserialize($item['data']))) {
    //Data from a View is on the other hand
    $bits = unserialize($item['data']);
    $description = $bits['description'];
  }
  
  $parts = explode('_', $element['#formatter']);
  unset($parts[0]);
  $player = implode('_', $parts);
  if($item['filemime'] == 'audio/mpeg' || $item['filemime'] == 'audio/x-mpeg' || $item['filemime'] == 'audio/mp3' || $item['filemime'] == 'audio/x-mp3' || $item['filemime'] == 'audio/mpeg3' || $item['filemime'] == 'audio/x-mpeg3' || $item['filemime'] == 'audio/mpg' || $item['filemime'] == 'audio/x-mpg' || $item['filemime'] == 'audio/mpegaudi') {
    //MP3 files get special treatment.
    $out = theme('mp3player', $player, file_create_url($item['filepath']), $title, $artist, $description);
  }
  else {
    // Fall back to filefield's default behavior.
    $out = theme('filefield_formatter_default', $element);
  }
  return $out;
}

/**
 * Pre-processor for mp3 player description.
 */
function filefieldmp3player_preprocess_filefieldmp3player_description(&$vars) {
  $vars['title']  = $vars['id3']['tags']['id3v2']['title'][0];
  $vars['artist'] = $vars['id3']['tags']['id3v2']['artist'][0];
  $vars['album']  = $vars['id3']['tags']['id3v2']['album'][0];
  $vars['year']   = $vars['id3']['tags']['id3v2']['year'][0];
  $vars['track']  = $vars['id3']['tags']['id3v2']['track'][0];
  $vars['genre']  = $vars['id3']['tags']['id3v2']['genre'][0];
}