<?php
/*****************************************************************************************/

/*
 * Channel Option Panel Processing
 *
 */
   $channels = $this->get_channels(False);
   $settings = $this->get_default_settings();

   $channel_opts = array( 
         'nonce'       => array ( 'Type' => 'nonce', 'Value' => 'update-AmazonLink-channels' ),

         'ID'          => array ( 'Type' => 'hidden'),
         'title'       => array ( 'Type' => 'section', 'Value' => '', 'Class' => 'hidden', 'Section_Class' => 'al_subhead'),
         'Name'        => array ( 'Type' => 'text', 'Name' => __('Channel Name', 'amazon-link'), 'Default' => 'Channel', 'Size' => '40'),
         'Description' => array ( 'Type' => 'text', 'Name' => __('Channel Description', 'amazon-link'), 'Default' => 'Channel Description', 'Size' => '80'),
         'Filter'      => array ( 'Type' => 'textbox', 'Name' => __('Channel Filter', 'amazon-link'), 'Rows' => 5, 'Description' => __('Channel Filter Rules', 'amazon-link'), 'Default' => '' ),
         'ids'         => array ( 'Type' => 'title', 'Value' => __('Affiliate IDs', 'amazon-link'), 'Title_Class' => 'al_subheading', 'Description' => __('Valid affiliate IDs from all Amazon locales can be obtained from the relevant Amazon sites: ', 'amazon-link'), 'Class' => 'al_pad al_border'),
         );

   $country_data = $this->get_country_data();
   // Populate Country related options
   foreach ($country_data as $cc => $data) {
      $channel_opts['tag_' . $cc] = array('Type' => 'text', 'Default' => '',
                                          'Name' => '<img style="height:14px;" src="'. $data['flag'] . '"> ' . $data['country_name'],
                                          'Hint' => sprintf(__('Enter your affiliate tag for %1$s.', 'amazon-link'), $data['country_name'] ));
      $channel_opts['ids']['Description'] .= '<a href="' . $data['site']. '">'. $data['country_name']. '</a>, ';
   }
   $channel_opts['plugin_ids'] = array ('Type' => 'title', 'Title_Class' => 'al_pad');

   $channel_opts['Buttons1'] = array ( 'Type' => 'buttons', 'Buttons' => 
                                           array ( __('Copy', 'amazon-link') => array( 'Action' => 'ALChannelAction', 'Class' => 'button-secondary'),
                                                   __('Update', 'amazon-link') => array( 'Action' => 'ALChannelAction', 'Class' => 'button-secondary'),
                                                   __('New', 'amazon-link') => array( 'Action' => 'ALChannelAction', 'Class' => 'button-secondary'),
                                                   __('Delete', 'amazon-link') => array( 'Action' => 'ALChannelAction', 'Class' => 'button-secondary') ));
   $channel_opts['end']      = array ( 'Type' => 'end');

/*****************************************************************************************/


   $action = (isset($_POST[ 'ALChannelAction' ]) && check_admin_referer( 'update-AmazonLink-channels')) ?
                      $_POST[ 'ALChannelAction' ] : 'No Action';

   // Get the Channel ID if selected.
   if (isset($_POST['ID'])) {
      $channel_id =$_POST['ID'];
   }

   $notify_update= False;
   // See if the user has posted us some information
   // If they did, the admin Nonce should be set.
   if(  $action == __('Update', 'amazon-link') ) {

      // Update Channel settings

      // Check for clash of ID with other Channels
      $new_channel_id = strtolower($_POST['Name']);
      if ($channel_id !== $new_channel_id ) {
         $new_id= '';
         while (isset($channels[ $new_channel_id . $new_id]))
            $new_id++;
         unset($channels[$channel_id ]);
         $channel_id = $new_channel_id . $new_id;
         $_POST['Name'] = $_POST['Name']. $new_id;
      }

      $channels[$channel_id] = array();

      foreach ($channel_opts as $Setting => $Details) {
         if (isset($Details['Default'])) {
            // Read their posted value
            $channels[$channel_id][$Setting] = stripslashes($_POST[$Setting]);
         }
      }
      $notify_update  = True;
      $update_message[] = sprintf (__('Channel %s Updated','amazon-link'), $channel_id);

      /*
       * Check if all locales populated for the default channel if not then issue a
       * warning to the user.
       */
      if ($channel_id == 'default') {
         $all_ids = False;
         foreach ($country_data as $cc => $data) {
            if (empty($channels[$channel_id]['tag_'.$cc])) {
               $locales[] = $data['country_name'];
            }
         }
         if (!empty($locales)) {
            $update_message[] = sprintf( __( 'PLEASE NOTE: You will not earn commission from visitors from these locales: %s, if localisation is enabled.','amazon-link'), implode( $locales, ', '));
         }
      }

   } else if (  $action == __('Delete', 'amazon-link') ) {
      unset($channels[$channel_id]);
      $notify_update  = True;
      $update_message[] = sprintf (__('Channel "%s" deleted.','amazon-link'), $channel_id);
   } else if (  $action == __('Copy', 'amazon-link') ) {
      $new_id = 1;
      while (isset($channels[ $channel_id . $new_id ]))
         $new_id++;
      $channels[$channel_id. $new_id ] = $channels[$channel_id];
      $channels[$channel_id. $new_id ]['Name'] = $channel_id. $new_id ;
      $notify_update  = True;
      $update_message[] = sprintf (__('Channel "%s" created from "%s".','amazon-link'), $channel_id. $new_id, $channel_id);
   } else if (  $action == __('New', 'amazon-link') ) {
      $new_id = '';
      while (isset($channels[ __('channel', 'amazon-link') . $new_id ]))
         $new_id ++;
      $channels[__('channel', 'amazon-link') . $new_id ] = array('Name' => __('Channel', 'amazon-link') . $new_id , 'Filter' => '', 'Description' => __('Channel Description', 'amazon-link'));
      $notify_update  = True;
      $update_message[] = sprintf (__('Channel "%s" created.','amazon-link'), __('channel', 'amazon-link') . $new_id );
   }

/*****************************************************************************************/

   /*
    * If first run need to create a default channel
    */
   if(!isset($channels['default'])) {
      $channels['default'] = array('Name' => 'Default', 'Description' => 'Default Affiliate IDs', 'Filter' => '');
      $notify_update  = True;
      $update_message[] = sprintf (__('Default Channel Created - Note: \'default\' channel must exist.','amazon-link'));
   }


/*****************************************************************************************/

   if ($notify_update && current_user_can('manage_options')) {
      $this->save_channels($channels);

      // **********************************************************
      // Put an options updated message on the screen
      foreach ((array)$update_message as $message) {
?>

<div class="updated">
 <p><strong><?php echo $message ; ?></strong></p>
</div>

<?php
      }
   }

/*****************************************************************************************/

   // **********************************************************
   // Now display the options editing screen
   foreach ($channels as $channel_id => $channel_details) {
      if ( ! isset( $channel_details['user_channel'] ) ) {

         /*
          * For the default channel we add a statement to tell the user what happens
          * if no associate ID is provided for a locale.
          */
         if ( $channel_id == 'default' ) {
            if ($settings['plugin_ids']) {
               $link = '<a href="admin.php?page=amazon-link-settings#plugin_ids">Plugin Associate IDs</a>';
               $channel_opts['plugin_ids']['Value'] = '<b>Note: For locales that you do not provide an associate ID you will not earn commission. However the plugin will provide its own valid ID which goes a small way towards supporting the development of the plugin. Disable this behaviour by changing the '.$link.' setting.</b>';
            } else {
               $channel_opts['plugin_ids']['Value'] = '<b>Note: For locales that you do not provide an associate ID you will not earn commission.</b>';
            }
         } else {
            $channel_opts['plugin_ids']['Value'] = '';
         }

         $channel_opts ['ID']['Default'] = $channel_id;
         $channel_opts ['title']['Value'] = sprintf(__('<b>%s</b> - %s','amazon-link'), $channel_id, isset($channel_details['Description'])?$channel_details['Description']:'User Channel');
         $this->form->displayForm($channel_opts , $channels[$channel_id]);
      }
   }


?>