<?php
/**
 * @file
 * Mixed subscription types
 * 
 * This is an alpha version, needs much more polishing.
 * For now only moving here pieces of code.
 */

/**
 * Implementation of hook_menu_()
 */
function notifications_mixed_menu($may_cache) {
  global $user;  // we need the user to to build some urls
  $items = array();
  if (!$may_cache) {

    if ($user->uid && arg(0) == 'user' && is_numeric(arg(1)) && arg(2) == 'notifications' && ($user->uid == arg(1) || user_access('administer notifications'))) {
      $account = ($user->uid == arg(1)) ? $user : user_load(array('uid' => arg(1)));
      $items[] = array(
        'path' => 'user/'. $account->uid .'/subscriptions/mixed',
        'type' => MENU_DEFAULT_LOCAL_TASK,
        'access' => user_access('subscribe to mixed types'),
        'title' => t('Mixed'),
        'callback' => 'notifications_mixed_user_page',
        'callback arguments' => array($account),
        'weight' => 10,
      );
    }
  }
  return $items;
}

/**
 * Implementation of hook_perm()
 */
function notifications_mixed_perm() {
  return array('subscribe to mixed types');
}

/**
 * Implementation of hook_notifications().
 */
function notifications_mixed_notifications($op, &$arg0, $arg1 = NULL, $arg2 = NULL) {
  switch ($op) {
    case 'subscription types':
      $types['mixed'] = array(
        'event_type' => 'node',
        'title' => t('Mixed'),
        'access' => 'subscribe to mixed types',
        'page' => 'notifications_content_page_mixed',
        'fields' => array(),
      );
    case 'node options':
      return _notifications_mixed_node_options($arg0, $arg1);
  }
}

function _notifications_mixed_node_options($account, $node) {
  // Content type and author
  $options[] = array(
    'name' => t('To %type posts by %name', array('%type' => $type_name, '%name' => $node->name)),
    'type' => 'mixed',
    'fields' => array('type' => $node->type, 'author' => $node->uid),
  );
  return $options;
}

/**
 * Menu callback. Overview page for mixed content subscriptions.
 */
function notifications_mixed_user_page($account) {
  $output = '';
  // Query all mixed types with more than one condition
  // List of all node subscriptions
  $subscriptions = notifications_get_subscriptions(array('type' => 'mixed', 'event_type' => 'node', 'uid' => $account->uid), array(), TRUE);
  
  if ($subscriptions) {
    $output .= drupal_get_form('notifications_mixed_user_form', $account, $subscriptions);
  } else {
    $output .= t('No subscriptions');
  }

  return $output;
}

function notifications_mixed_user_form($account, $subscriptions) {
  $form['account'] = array('#type' => 'value', '#value' => $account);
  $form['current'] = array('#type' => 'value', '#value' => $subscriptions);  
  $form['subscriptions'] = array(
    '#tree' => TRUE,
    '#theme' => 'notifications_form_table',
    '#header' => array(t('Type'), t('Conditions'), t('Send interval'), t('Send method'), t('Options')),
  );
  foreach ($subscriptions as $subs) {
    // Name the conditions
    notifications_module_invoke('names', $subs);
    $options = array(
      l(t('delete'), 'subscriptions/del/'.$subs->sid),
    );
    $key = $subs->sid;
    $form['subscriptions']['type'][$key] = array(
      '#value' => $subs->type_name,
    );
    $form['subscriptions']['title'][$key] = array(
      '#value' => implode(' | ', $subs->names),
    );
    $form['subscriptions']['send_interval'][$key] = array(
      '#type' => 'select',
      '#options' => _notifications_send_intervals(),
      '#default_value' => $subs->send_interval,
    );
    $form['subscriptions']['send_method'][$key] = array(
      '#type' => 'select',
      '#options' => _notifications_send_methods(),
      '#default_value' => $subs->send_method,
    );    
    $form['subscriptions']['options'][$key] = array(
      '#value' => implode(' | ', $options),
    );
  }
  $form['submit'] = array('#type' => 'submit', '#value' => t('Save'));
  return $form;
}

function notifications_mixed_user_form_submit($form_id, $form_values) {
  // Compare values with current and save changes
  foreach ($form_values['current'] as $sid => $current) {
    $send_interval = $form_values['subscriptions']['send_interval'][$sid];
    $send_method = $form_values['subscriptions']['send_method'][$sid];
    if ($current->send_interval != $send_interval || $current->send_method != $send_method) {
      db_query("UPDATE {notifications} SET send_interval = '%s', send_method = '%s' WHERE sid = %d", $send_interval, $send_method, $sid);
    }
  }
  drupal_set_message(t('Your subscriptions have been updated.'));
}