<?php

/**
 * @file
 *
 * This module enables an administrative dashboard.
 */

include_once('includes/total_control.inc'); 
include_once('includes/total_control.views_default.inc');

define('TOTAL_CONTROL_REQUIRED_PANELS_API', '3');
define('TOTAL_CONTROL_REQUIRED_VIEWS_API', '2');
// This is the name of the dashboard as the page manager module sees it via the page task.
define('TOTAL_CONTROL_DASHBOARD_PANEL_NAME', 'dashboard');
define('TOTAL_CONTROL_MINIMUM_VERSION', 2);
define('TOTAL_CONTROL_VERSION', 2);

/** 
 * Implements hook_perm().
 *
 * Adds permissions for access to the total control dashboard
 */
function total_control_permission() {
  return array(
    'have total control' => array(
      'title' => t('Have total control'), 
      'description' => t('See the Total Control administrative dashboard.'),
    ),
    'administer total control' => array(
      'title' => t('Administer total control'), 
      'description' => t('Adjust the settings for the Total Control administrative dashboard.'),
    ),
  );
}

/** 
 * Implements hook_menu().
 *
 * Adds the total control dashboard
 */
function total_control_menu() {
  $items = array();

  $items['admin/config/administration/control'] = array(
    'title' => 'Total Control Dashboard',
    'description' => 'Adjust dashboard settings.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('total_control_admin_settings'),
    'access arguments' => array('administer total control'),
    'file' => 'total_control.admin.inc',
  );
  // Add a tab for the dashboard.
  $items['admin/dashboard/overview'] = array(
    'title' => 'Dashboard',
    'description' => 'Total Control admin dashboard',
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -100,
  );

  return $items;
}

/**
 * Implements hook_form_alter().
 *
 * Adds views adjustment handling when content types are added or removed
 */
function total_control_form_alter(&$form, $form_state, $form_id) {
  if ('node_type_form' == $form_id) {
    $form['#submit'][] = 'total_control_add_type_submit';
  }
  if ('node_type_delete_confirm' == $form_id) {
    $form['#submit'][] = 'total_control_remove_type_submit';
  }
}

/**
 * Implements hook_user_login().
 * Redirects to the dashboard if configured.
 */
function total_control_user_login(&$edit, $account) {
  // Don't redirect for password reset.
  if (!((arg(0) == 'user') && (arg(1) == 'reset'))) {
    // Check for permission to use total control.
    if (user_access('have total control', $account)) {
      // Check for redirect to dashboard setting.
      if (variable_get('total_control_login_redirect', 0) == 1) {
        // TODO Make sure destination is not already set.
        //if (!isset($_GET['destination'])) {
          // TODO worry about overlay module.
          $_GET['destination'] = 'admin/dashboard';
        //}
      }
    }
  }
}

/**
 * Implements hook_views_pre_render().
 *
 * Adds the create content links to dashboard views.
 */
function total_control_views_pre_render(&$view) {
  // Check that this is the control content view
  if ($view->name == 'control_content') {

    // Create an array of type-based page displays.
    $type_displays = $view->display;
    unset($type_displays['default']);
    unset($type_displays['page_1']);

    // Get the content type of each display.
    $machine_names = array();
    foreach ($type_displays as $key => $value) {
      if (is_string(substr($key, 8))) {
        $machine_names[] = substr($key, 8);
      }
    }

    foreach ($machine_names as $type) {
      // Check if the user has access to create content of that type.
      if (user_access('create ' . $type . ' content')) {
        // Add the create content link.
        $add_link = l(t('Create ' . $type . ' content'), 'node/add/' . $type);
        if (array_key_exists('page_tc_' . $type, $view->display)){
          if (array_key_exists('header', $view->display['page_tc_' . $type]->handler->options)) {
            // If there's already a header, append to it.
            $view->display['page_tc_' . $type]->handler->options['header'] .= $add_link;
          }
          else {
            // Otherwise add our own header.
            $view->display['page_tc_' . $type]->handler->options['header'] = $add_link;
          }
        }
      }
    }
  }
}

/**
 * Implements hook_ctools_plugin_dierctory().
 */
function total_control_ctools_plugin_directory($module, $plugin) {
  if ($module == 'ctools' && !empty($plugin)) {
    return "plugins/$plugin";
  }
}

/**
 * Implements hook_ctools_plugin_api().
 */
function total_control_ctools_plugin_api($module, $api) {
  if ($module == 'panels_mini' && $api == 'panels_default') {
    return array('version' => 1);
  }
  if ($module == 'page_manager' && $api == 'pages_default') {
    return array('version' => 1);
  }
}

/**
 * Implements hook_views_api().
 *
 * Register View API information. This is required for your module to have
 * its include files loaded; for example, when implementing
 * hook_views_default_views().
 *
 * @return
 *   An array with the following possible keys:
 *   - api:  (required) The version of the Views API the module implements.
 *   - path: (optional) If includes are stored somewhere other than within
 *       the root module directory or a subdirectory called includes, specify
 *       its path here.
 */
function total_control_views_api() {
  return array(
    'api' => 2,
  );
}

/**
 * Implements hook_theme().
 *
 * Adds theme functions for the output of content panes.
 */
function total_control_theme() {
  return array(
    'total_control_create' => array(
      'variables' => array('create' => array()), 
      'file' => 'total_control.theme.inc',
    ),
    'total_control_overview' => array(
      'variables' => array('content' => array(), 'users' => array()), 
      'file' => 'total_control.theme.inc',
    ),
    'total_control_overview_content' => array(
      'variables' => array('overview' => array()), 
      'file' => 'total_control.theme.inc',
    ),
    'total_control_overview_user' => array(
      'variables' => array('overview' => array()), 
      'file' => 'total_control.theme.inc',
    ),
    'total_control_admin_table' => array(
      'variables' => array('header' => array(), 'rows' => array(), 'link' => FALSE), 
      'file' => 'total_control.theme.inc',
    ),
  );
}