<?php

/**
 * @file
 * Check and alert if SCM music library is installed.
 */

/**
 * Implements hook_requirements().
 *
 * This check if the SCM music library is installed.
 */
function scm_music_player_requirements($phase) {
  $t = get_t();
  $requirements = array();
  $github = 'https://github.com/cshum/scm-music-player';

  if ($phase == "runtime") {

    if (module_exists('libraries')) {

      $libraries = @libraries_get_libraries();

      if (isset($libraries['scm-music-player'])) {
        $requirements['scm-music-player']['title'] = $t('SCM Music Player');
        $requirements['scm-music-player']['value'] = $t('SCM Music Player is installed');
        $requirements['scm-music-player']['severity'] = REQUIREMENT_OK;
      }
      else {
        $requirements['scm-music-player']['title'] = $t('SCM Music Player');
        $requirements['scm-music-player']['value'] = $t('SCM Music Player is not installed.');
        $requirements['scm-music-player']['severity'] = REQUIREMENT_ERROR;
        $requirements['scm-music-player']['description'] = $t('Please download the SCM Music Player library from !github and extract it into sites/all/libraries/scm-music-player', array('!github' => l($github, $github)));
      }
    }
    else {
      $requirements['libraries']['title'] = $t('Libraries');
      $requirements['libraries']['value'] = $t('Libraries is not installed.');
      $requirements['libraries']['description'] = $t('Please download and enable the libraries module (!url) before enabling this module.', array('!url' => 'http://drupal.org/project/libraries'));
      $requirements['libraries']['severity'] = REQUIREMENT_ERROR;
    }

  }

  return $requirements;
}

/**
 * Implements hook_uninstall().
 */
function scm_music_player_uninstall() {
  variable_del('scm_music_player_stream_title');
  variable_del('scm_music_player_stream_url');
  variable_del('scm_music_player_stream_playlist_url');
  variable_del('scm_music_player_skin');
  variable_del('scm_music_player_enabled');
  variable_del('scm_music_player_shuffle');
  variable_del('scm_music_player_showplaylist');
  variable_del('scm_music_player_repeat');
  variable_del('scm_music_player_autoplay');
  variable_del('scm_music_player_placement');
  variable_del('scm_music_player_description');
}