<?php

/**
 * @file
 * Implementation of scm_music_player.module.
 */

/**
 * Implements hook_help().
 */
function scm_music_player_help($path, $arg) {
  switch ($path) {
    case 'admin/help#scm_music_player':
      return '<p>' . t('SCM Music Player is a free and open source web music player, that brings a steady playback music experience to your drupal site. The <a href="@anon">SCM Music Player administration page</a> allows you to configure options including skin, playlist, and other configure settings.', array('@anon' => url('admin/config/media/scm_music_player'))) . '</p>';
  }
}

/**
 * Implements hook_menu().
 */
function scm_music_player_menu() {

  $items['admin/config/media/scm_music_player'] = array(
    'title' => 'SCM Music Player',
    'description' => 'Administer SCM Music Player',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('scm_music_player_configure'),
    'access callback' => 'user_access',
    'access arguments' => array('administer scm_music_player settings'),
  );
  return $items;
}

/**
 * Implements Creates/returns a form to configure the SCM Music Player settings.
 */
function scm_music_player_configure() {

  $form = array();

  $form['scm_music_player_description'] = array(
    '#markup' => t('Use this page to set default SCM Music Player configuration.
        <br><b>Important: After saving the new settings please refresh/reload the site to see the changes.<br>'),
  );

  $form['scm_music_player_stream_title'] = array(
    '#type' => 'textfield',
    '#title' => t('Stream Title'),
    '#default_value' => variable_get('scm_music_player_stream_title'),
    '#size' => 100,
    '#maxlength' => 40,
    '#required' => TRUE,
    '#description' => t('Insert Title for the Stream URL.'),
  );

  $form['scm_music_player_stream_url'] = array(
    '#type' => 'textfield',
    '#title' => t('Stream URL'),
    '#default_value' => variable_get('scm_music_player_stream_url'),
    '#prefix' => '<table><tr><th>' . t('Manual Playlist') . '</th><th>' . t('RSS Podcast / SoundCloud Sets') . '</th></tr><tr><td>',
    '#suffix' => '</td>',
    '#description' => t('Stream URL accepts MP3 link, SoundCloud track or Youtube address.'),
  );

  $form['scm_music_player_stream_playlist_url'] = array(
    '#type' => 'textfield',
    '#title' => t('RSS Podcast / SoundCloud Sets'),
    '#default_value' => variable_get('scm_music_player_stream_playlist_url'),
    '#prefix' => '<td>',
    '#suffix' => '</td></tr></table>',
    '#description' => t('RSS Podcast SoundCloud Sets URL'),
  );

  $form['scm_music_player_fieldset'] = array(
    '#type' => 'fieldset',
    '#title' => t('SCM Music Player Configure Setting'),
    '#collapsible' => TRUE,
    '#collapsed' => FALSE,
  );

  $form['scm_music_player_fieldset']['scm_music_player_skin'] = array(
    '#type' => 'select',
    '#title' => t('Player Skin'),
    '#options' => array(
      'tunes' => t('Itunes'),
      'aquaBlue' => t('Blue'),
      'aquaGreen' => t('Green'),
      'aquaPink' => t('Pink'),
      'aquaOrange' => t('Orange'),
      'aquaPurple' => t('Purple'),
    ),
    '#default_value' => variable_get('scm_music_player_skin'),
    '#description' => t('Select a skin'),
    '#prefix' => '<table><tr><td>',
  );

  $form['scm_music_player_fieldset']['scm_music_player_enabled'] = array(
    '#type' => 'select',
    '#title' => t('Enable the player'),
    '#required' => TRUE,
    '#options' => array(
      'true' => t('True'),
      'false' => t('False'),
    ),
    '#default_value' => variable_get('scm_music_player_enabled'),
    '#description' => t('Enable the player'),
    '#prefix' => '<td>',
    '#suffix' => '</td>',
  );

  $form['scm_music_player_fieldset']['scm_music_player_shuffle'] = array(
    '#type' => 'select',
    '#title' => t('Shuffle Playback'),
    '#options' => array(
      'true' => t('True'),
      'false' => t('False'),
    ),
    '#default_value' => variable_get('scm_music_player_shuffle'),
    '#description' => t('Enable Shuffle Playback'),
    '#prefix' => '<td>',
    '#suffix' => '</td>',
  );

  $form['scm_music_player_fieldset']['scm_music_player_showplaylist'] = array(
    '#type' => 'select',
    '#title' => t('Show Playlist'),
    '#options' => array(
      'false' => t('False'),
      'true' => t('True'),
    ),
    '#default_value' => variable_get('scm_music_player_showplaylist'),
    '#description' => t('Show Playlist by Default'),
    '#prefix' => '<td>',
    '#suffix' => '</td>',
  );

  $form['scm_music_player_fieldset']['scm_music_player_repeat'] = array(
    '#type' => 'select',
    '#title' => t('Repeat Mode'),
    '#options' => array(
      0 => t('Play Playlist Once'),
      1 => t('Repeat Playlist'),
      2 => t('Repeat Item'),
    ),
    '#default_value' => variable_get('scm_music_player_repeat'),
    '#description' => t('Select a Repeat Mode'),
    '#prefix' => '<td>',
    '#suffix' => '</td>',
  );

  $form['scm_music_player_fieldset']['scm_music_player_autoplay'] = array(
    '#type' => 'select',
    '#title' => t('Auto Play'),
    '#options' => array(
      'true' => t('True'),
      'false' => t('False'),
    ),
    '#default_value' => variable_get('scm_music_player_autoplay'),
    '#description' => t('Enable autoplay on page load.'),
    '#prefix' => '<td>',
    '#suffix' => '</td>',
  );

  $form['scm_music_player_fieldset']['scm_music_player_placement'] = array(
    '#type' => 'select',
    '#title' => t('Placement'),
    '#options' => array(
      'bottom' => t('Bottom'),
      'top' => t('Top'),
    ),
    '#default_value' => variable_get('scm_music_player_placement'),
    '#description' => t('Placement of Player'),
    '#prefix' => '<td>',
    '#suffix' => '</td></tr></table>',
  );

  return system_settings_form($form);
}

/**
 * Create a new permission to administer scm_music_player player.
 *
 * This permission can be given to any role.
 */
function scm_music_player_permission() {

  return array(
    'administer scm_music_player settings' => array(
      'title' => t('Administer SCM Music Player settings'),
      'description' => t('Allow users to administer SCM Music Player settings'),
    ),
  );
}

/**
 * Implements hook_page_build().
 */
function scm_music_player_page_build() {
  if (!path_is_admin(current_path())) {
    $player_enabled = variable_get('scm_music_player_enabled');

    if ($player_enabled == 'true') {
      global $base_url;

      $player_skin = variable_get('scm_music_player_skin');
      $autoplay = variable_get('scm_music_player_autoplay');
      $shuffle = variable_get('scm_music_player_shuffle');
      $repeat = variable_get('scm_music_player_repeat');
      $placement = variable_get('scm_music_player_placement');
      $playlist = variable_get('scm_music_player_showplaylist');

      $stream_url = variable_get('scm_music_player_stream_url');
      $stream_title = variable_get('scm_music_player_stream_title');
      $stream_playlist_url = variable_get('scm_music_player_stream_playlist_url');

      if (empty($stream_playlist_url)) {
        $scmplayer_data_config = "{'skin':'skins/" . $player_skin . "/skin.css','volume':50,'autoplay':" . $autoplay . ",'shuffle':" . $shuffle . ",'repeat':" . $repeat . ",'placement':'" . $placement . "','showplaylist':" . $playlist . ",'playlist':[{'title':'" . $stream_title . "','url':'" . $stream_url . "'}]}";

      }
      elseif (!empty($stream_playlist_url)) {
        $scmplayer_data_config = "{'skin':'skins/" . $player_skin . "/skin.css','volume':50,'autoplay':" . $autoplay . ",'shuffle':" . $shuffle . ",'repeat':" . $repeat . ",'placement':'" . $placement . "','showplaylist':" . $playlist . ",'playlist':'" . $stream_playlist_url . "'}";
      }

      $scm_js = array(
        '#tag' => 'script',
        '#attributes' => array(
          'type' => 'text/javascript',
          'data-config' => $scmplayer_data_config,
          'src' => url($base_url . '/' . libraries_get_path('scm-music-player') . '/script.js', array('absolute' => TRUE)
          ),
        ),
        '#value' => '',
        '#theme' => 'html_tag',
      );
      drupal_add_html_head($scm_js, 'scm_music_player');
    }
  }
}