<?php
// $Id: moderation.module,v 1.1.4.3 2009-04-23 09:35:58 sanduhrs Exp $

/**
 * @file
 * Moderation - nodes and comments queue
 *
 * @author
 * Stefan Auditor <stefan.auditor@erdfisch.de>
 */

/**
 * Implementation of hook_menu().
 **/
function moderation_menu() {
  $items = array();
  
  $items['node/%/log'] = array(
    'title' => 'Log',
    'page callback' => 'moderation_log',
    'page arguments' => array('node', 1),
    'access arguments' => array('administer nodes'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'moderation.moderation.inc',
  );
  $items['admin/content/node/moderation'] = array(
    'title' => 'Moderation',
    'page callback' => 'moderation_node_queue',
    'access arguments' => array('administer nodes'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'moderation.moderation.inc',
  );
  $items['admin/content/node/log'] = array(
    'title' => 'Log',
    'page callback' => 'moderation_log',
    'access arguments' => array('administer nodes'),
    'page arguments' => array('node'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'moderation.moderation.inc',
    'weight' => 1,
  );
  $items['admin/content/comment/moderation'] = array(
    'title' => 'Moderation',
    'page callback' => 'moderation_comment_queue',
    'access arguments' => array('administer comments'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'moderation.moderation.inc',
  );
  $items['admin/content/comment/log'] = array(
    'title' => 'Log',
    'page callback' => 'moderation_log',
    'page arguments' => array('comment'),
    'access arguments' => array('administer comments'),
    'type' => MENU_LOCAL_TASK,
    'file' => 'moderation.moderation.inc',
    'weight' => 1,
  );

  $items['admin/settings/moderation'] = array(
    'title' => 'Content moderation',
    'description' => 'Configure the moderation queue.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('moderation_admin_settings'),
    'access arguments' => array('administer site configuration'),
    'file' => 'moderation.admin.inc',
  );

  $items['moderation/%/%/%/%'] = array(
    'page callback' => 'moderation_callback_switch',
    'page arguments' => array(1, 2, 3, 4),
    'access callback' => 'moderation_moderation_access_callback',
    'access arguments' => array(1),
    'type' => MENU_CALLBACK,
    'file' => 'moderation.pages.inc',
  );

  return $items;
}

/**
 * Implementation of hook_theme().
 */
function moderation_theme() {
  return array(
    'moderation_node_preview' => array(
      'arguments' => array(
        'node',
      ),
    ),
  );
}

function moderation_moderation_access_callback($arg1) {
  $access = ($arg1 == 'node' AND user_access('administer nodes')) || ($arg1 == 'comment' AND user_access('administer comments')) ? TRUE : FALSE;
  return $access;
}

/**
 * Implementation of hook_nodeapi
 */
function moderation_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) {
  switch ($op) {
    case 'load':
      if (in_array($node->type, variable_get('moderation_moderated_types', array()))) {
        return db_fetch_array(db_query("SELECT status as moderate FROM {moderation_moderation} mm WHERE mm.obj_type = 'node' AND mm.obj_id = %d", $node->nid)); 
      }
    case 'update' :
    case 'insert' :
      if (moderation_is_moderated_type($node->type)) {
        db_query("DELETE FROM {moderation_moderation} WHERE obj_id=%d AND obj_type='node'", $node->nid);
        db_query("INSERT INTO {moderation_moderation} SET obj_id=%d, obj_type='node', status=%d", $node->nid, $node->moderate);
      }
      break;
    case 'delete':
      db_query("DELETE FROM {moderation} WHERE obj_type='node' AND obj_id=%d", $node->nid);
      db_query("DELETE FROM {moderation_moderation} WHERE obj_type='node' AND obj_id=%d", $node->nid);
      break;
  }
}

/**
 * Implementation of hook_comment().
 */
function moderation_comment(&$a1, $op) {
  switch ($op) {
    case 'insert':
    case 'update':
      db_query("DELETE FROM {moderation_moderation} WHERE obj_id=%d AND obj_type='comment'", $a1['cid']);
      db_query("INSERT INTO {moderation_moderation} SET obj_id=%d, obj_type='comment', status=%d", $a1['cid'], $a1['moderate']);
      break;
    case 'delete':
      db_query("DELETE FROM {moderation} WHERE obj_type='comment' AND obj_id=%d", $a1['cid']);
      db_query("DELETE FROM {moderation_moderation} WHERE obj_type='comment' AND obj_id=%d", $a1['cid']);
      break;
  }
}

function moderation_is_moderated_type($type) {
  $types = variable_get('moderation_moderated_types', array());
  return ($types[$type]);
}

/**
 * Implementation of hook_form_alter().
 */
function moderation_form_alter(&$form, &$form_state, $form_id) {
  if (isset($form['type']) && $form['type']['#value'] .'_node_form' == $form_id)  {
    if (moderation_is_moderated_type($form['type']['#value'])) {
      if (user_access('administer nodes')) {
        $form['options']['moderate'] = array(
          '#type' => 'checkbox', 
          '#title' => t('Has been moderated'), 
          '#default_value' => $form['#node']->moderate,
          '#weight' => 24,
          '#description' => t('Check to remove from moderation queue, uncheck to add it to the queue.'),
        );
      }
    }
  }
}

/**
 * Implementation of hook_form_comment_form_alter().
 */
function moderation_form_comment_form_alter(&$form, &$form_state) {
  if (user_access('administer nodes')) {
    $status = db_result(db_query("SELECT status FROM {moderation_moderation} WHERE obj_id=%d AND obj_type='comment'", $form['cid']['#value']));
      $form['admin']['moderate'] = array(
        '#type' => 'checkbox',
        '#title' => 'Has been moderated',
        '#default_value' => $status,
        '#weight' => -1,
        '#description' => t('Check to remove from moderation queue, uncheck to add it to the queue.'),
      );
  }
}

/*
/**
 * Display a node preview for display during node creation and editing.
 *
 * @param $node
 *   The node object which is being previewed.
 */
function theme_moderation_node_preview($node) {
  $output = '<div class="preview">';
  if ($node->teaser && $node->teaser != $node->body) {
    $output .= '<h3>'. t('Preview trimmed version') .'</h3>';
    $output .= node_view(drupal_clone($node), 1, FALSE, 0);
    $output .= '<h3>'. t('Preview full version') .'</h3>';
    $output .= node_view($node, 0, FALSE, 0);
  }
  else {
    $output .= node_view($node, 0, FALSE, 0);
  }
  $output .= "</div>\n";

  return $output;
}