<?php

/*

 * Decir

 * Version 0.1

 * Copyright (C) 2007 Dan Fuhry

 * admin_forums.php - forum creation and management frontend

 *

 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied

 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.

 */

$decir_menu['DecirForums'] = 'Manage forums';

require( DECIR_ROOT . '/constants.php' );

function page_Admin_DecirForums()

{

  global $db, $session, $paths, $template, $plugins; // Common objects

  if ( $session->auth_level < USER_LEVEL_ADMIN || $session->user_level < USER_LEVEL_ADMIN )

  {

    echo '<h3>Error: Not authenticated</h3><p>It looks like your administration session is invalid or you are not authorized to access this administration page. Please <a href="' . makeUrlNS('Special', 'Login/' . $paths->nslist['Special'] . 'Administration', 'level=' . USER_LEVEL_ADMIN, true) . '">re-authenticate</a> to continue.</p>';

    return;

  }

  $show_main_menu = true;

  if ( isset($_POST['act']) )

  {

    switch ( $_POST['act'] )

    {

      case "create":

      case "create_finish":

        // Do we have any categories yet?

        $q = $db->sql_query('SELECT forum_id, forum_name FROM ' . table_prefix . 'decir_forums WHERE forum_type = ' . FORUM_CATEGORY . ';');

        if ( !$q )

          $db->_die('Decir admin_forums.php retrieving category count');

        $need_category = ( $db->numrows() < 1 );

        $cats = array();

        if ( !$need_category )

        {

          while ( list($cat_id, $cat_name) = $db->fetchrow_num() )

          {

            $cats[ $cat_id ] = $cat_name;

          }

        }

        $db->free_result();

        if ( $_POST['act'] == 'create_finish' )

        {

          $errors = array();

          $forum_type = intval($_POST['forum_type']);

          if ( $forum_type != FORUM_FORUM && $forum_type != FORUM_CATEGORY )

            $errors[] = 'Invalid forum type. <tt>X.X</tt>';

          $forum_name = trim($_POST['forum_name']);

          if ( empty($forum_name) )

            $errors[] = 'Please enter a name for this forum.';

          $forum_desc = '';

          $forum_parent = 0;

          if ( $forum_type == FORUM_FORUM )

          {

            $forum_desc = trim($_POST['forum_desc']);

            if ( empty($forum_desc) )

              $errors[] = 'Please enter a description for this forum.';

            $forum_parent = intval($_POST['forum_parent']);

            if ( !isset($cats[$forum_parent]) )

              $errors[] = 'Invalid parent category';

          }

          if ( count($errors) > 0 )

          {

            // Errors encountered - bounce form back to the user

            $show_main_menu = false;

            $form = new Decir_Admin_SmartForm_Forum(DECIR_ADMIN_MODE_CREATE);

            $form->forum_name = $forum_name;

            $form->forum_desc = $forum_desc;

            $form->forum_type = $forum_type;

            $form->need_category = $need_category;

            $form->category_list = $cats;

            echo $form->html();

            break;

          }

          // All checks passed. Create forum.

          $forum_name_db = $db->escape($forum_name);

          $forum_desc_db = $db->escape($forum_desc);

          $sql = 'INSERT INTO ' . table_prefix . "decir_forums(forum_name, forum_desc, forum_type, parent, num_topics, num_posts) VALUES\n"

                 . "  ( '$forum_name_db', '$forum_desc_db', $forum_type, $forum_parent, 0, 0 );";

          if ( $db->sql_query($sql) )

          {

            $forum_name = htmlspecialchars($forum_name);

            $type = ( $forum_type == FORUM_FORUM ) ? 'forum' : 'category';

            echo "<div class=\"info-box\">The {$type} \"{$forum_name}\" has been created successfully.</div>";

          }

          break;

        }

        // Create a smartform

        $show_main_menu = false;

        $form = new Decir_Admin_SmartForm_Forum(DECIR_ADMIN_MODE_CREATE);

        $form->need_category = $need_category;

        $form->category_list = $cats;

        echo $form->html();

        break;

    }

  }

  if ( $show_main_menu )

  {

    // Display the main forum admin interface

    $form_url = makeUrlNS('Special', 'DecirAdmin', "module={$paths->nslist['Admin']}DecirForums", true);

    echo "<form action=\"$form_url\" method=\"post\" enctype=\"multipart/form-data\">";

    echo '<div class="tblholder">

            <table border="0" cellspacing="1" cellpadding="4">

              <tr>

                <th colspan="4">Forum administration</th>

              </tr>';

    // Select and display all forums

    $q = $db->sql_unbuffered_query('SELECT forum_id, forum_name, forum_type FROM ' . table_prefix . 'decir_forums ORDER BY ( forum_type = ' . FORUM_CATEGORY . ' ) DESC, forum_order;');

    if ( !$q )

      $db->_die('Decir admin_forums.php selecting main forum datum');

    if ( $row = $db->fetchrow() )

    {

      do

      {

      }

      while ( $row = $db->fetchrow() );

    }

    else

    {

      echo '<td colspan="4" class="row3">There are no forums on this board.</td>';

    }

    // Create forum button

    echo '    <tr>

                <th class="subhead">

                  <button name="act" value="create">Create new forum</button>

                </th>

              </tr>';

    echo '  </table>

          </div>';

    echo "</form>";

  }

}

/**

 * Smart form for creating and editing Decir forums.

 * @package Decir

 * @subpackage Administration

 * @copyright 2007 Dan Fuhry

 * @license GPL

 */

class Decir_Admin_SmartForm_Forum

{

  /**

   * Whether we are creating or editing a forum.

   * @var int

   */

  var $form_mode;

  /**

   * The name of the forum - only used in edit mode.

   * @var string

   */

  var $forum_name = '';

  /**

   * The description of the forum - only used in edit mode.

   * @var string

   */

  var $forum_desc = '';

  /**

   * The type of entry this is (forum or category)

   * @var int

   */

  var $forum_type = -1;

  /**

   * Track if we need to make the user create a category as opposed to a forum.

   * @var bool

   */

  var $need_category = false;

  /**

   * The list of categories on the site.

   * @var array

   */

  var $category_list = array();

  /**

   * Instance ID for javascripting

   * @var string

   */

  var $instance_id;

  /**

   * Constructor

   * @param int Form type - should be DECIR_ADMIN_MODE_CREATE or DECIR_ADMIN_MODE_EDIT

   */

  function __construct($form_mode)

  {

    global $db, $session, $paths, $template, $plugins; // Common objects

    $form_mode = intval($form_mode);

    if ( $form_mode != DECIR_ADMIN_MODE_CREATE && $form_mode != DECIR_ADMIN_MODE_EDIT )

      die('Syntax error: $form_mode to Decir_Admin_SmartForm_Forum::__construct should be DECIR_ADMIN_MODE_CREATE or DECIR_ADMIN_MODE_EDIT.');

    $this->form_mode = $form_mode;

    $this->instance_id = $session->dss_rand();

  }

  /**

   * PHP4 compatibility constructor.

   * @see Decir_Admin_SmartForm_Forum::__construct

   */

  function Decir_Admin_SmartForm_Forum($form_type)

  {

    $this->__construct($form_type);

  }

  /**

   * Render the form into HTML.

   * @return string

   */

  function html()

  {

    global $db, $session, $paths, $template, $plugins; // Common objects

    $f_f = FORUM_FORUM;

    $f_c = FORUM_CATEGORY;

    $tpl_code = <<<EOF

        <!-- Start forum creation/edit smartform {INSTANCE_ID} -->

        <script type="text/javascript">

          function set_form_type_category_{INSTANCE_ID}()

          {

            document.getElementById('type_category_{INSTANCE_ID}').style.display = 'block';

            document.getElementById('type_forum_{INSTANCE_ID}').style.display = 'none';

          }

          function set_form_type_forum_{INSTANCE_ID}()

          {

            document.getElementById('type_category_{INSTANCE_ID}').style.display = 'none';

            document.getElementById('type_forum_{INSTANCE_ID}').style.display = 'block';

          }

          var set_form_type_auto_{INSTANCE_ID} = function()

          {

            if ( document.getElementById('radio_forum_{INSTANCE_ID}').checked )

            {

              set_form_type_forum_{INSTANCE_ID}();

            }

            else if ( document.getElementById('radio_category_{INSTANCE_ID}').checked )

            {

              set_form_type_category_{INSTANCE_ID}();

            }

          }

          addOnloadHook(set_form_type_auto_{INSTANCE_ID});

        </script>

        <form action="{FORM_ACTION}" name="decir_forum_smartform_{INSTANCE_ID}" method="post" enctype="multipart/form-data">

        <div class="tblholder">

          <table border="0" cellspacing="1" cellpadding="4">

            <tr>

              <th colspan="2">

                <!-- BEGIN mode_is_create -->

                Create new forum

                <!-- BEGINELSE mode_is_create -->

                Edit forum {FORUM_NAME}

                <!-- END mode_is_create -->

              </th>

            </tr>

            <!-- BEGIN mode_is_create -->

            <tr>

              <td class="row2" style="width: 50%;">

                Forum type:

              </td>

              <td class="row1" style="width: 50%;">

                <label>

                  <input id="radio_forum_{INSTANCE_ID}" type="radio" name="forum_type" value="{TYPE_FORUM}" onclick="set_form_type_forum_{INSTANCE_ID}();" <!-- BEGIN type_is_forum -->checked="checked" <!-- END type_is_forum -->/> Forum

                </label>

                <label>

                  <input id="radio_category_{INSTANCE_ID}" type="radio" name="forum_type" value="{TYPE_CATEGORY}" onclick="set_form_type_category_{INSTANCE_ID}();" <!-- BEGINNOT type_is_forum -->checked="checked" <!-- END type_is_forum -->/> Category

                </label>

              </td>

            </tr>

            <!-- END mode_is_create -->

            <tr>

              <td class="row2" style="width: 50%;">

                Forum description:

              </td>

              <td class="row1" style="width: 50%;">

              <input type="text" name="forum_name" size="40" value="{FORUM_NAME}" />

              </td>

            </tr>

          </table>

        </div>

        <!-- BEGIN show_opts_category -->

        <div class="tblholder" id="type_category_{INSTANCE_ID}"<!-- BEGIN mode_is_create --> style="display: none;" <!-- END mode_is_create -->>

          <table border="0" cellspacing="1" cellpadding="4">

            <tr>

              <th colspan="2">

                Category options

              </th>

            </tr>

            <tr>

              <td class="row2" style="width: 50%;">

                Stub

              </td>

              <td class="row1" style="width: 50%;">

                Stub

              </td>

            </tr>

            <tr>

              <th class="subhead" colspan="2">

                <button name="act" value="create_finish"><b>Create category</b></button>

                <button name="act" value="noop" style="font-weight: normal;">Cancel</button>

              </th>

            </tr>

          </table>

        </div>

        <!-- END show_opts_category -->

        <!-- BEGIN show_opts_forum -->

        <div id="type_forum_{INSTANCE_ID}">

          <!-- BEGIN need_category -->

          <div class="error-box">

            There aren't any categories on this site yet. You need to create at least one category before you can create a forum.

          </div>

          <!-- BEGINELSE need_category -->

          <div class="tblholder">

            <table border="0" cellspacing="1" cellpadding="4">

              <tr>

                <th colspan="2">

                  Forum options

                </th>

              </tr>

              <tr>

                <td class="row2" style="width: 50%;">

                  Forum description:

                </td>

                <td class="row1" style="width: 50%;">

                  <input type="text" name="forum_desc" size="40" value="{FORUM_DESC}" />

                </td>

              </tr>

              <tr>

                <td class="row2">

                  Create in category:

                </td>

                <td class="row1">

                  <select name="forum_parent">

                    {CATEGORY_LIST}</select>

                </td>

              </tr>

              <tr>

                <th class="subhead" colspan="2">

                  <button name="act" value="create_finish"><b>Create forum</b></button>

                  <button name="act" value="noop" style="font-weight: normal;">Cancel</button>

                </th>

              </tr>

            </table>

          </div>

          <!-- END need_category -->

        </div>

        <!-- END show_opts_forum -->

        </form>

        <!-- Finish forum creation/edit smartform {INSTANCE_ID} -->

EOF;

    $parser = $template->makeParserText($tpl_code);

    $category_list = '';

    foreach ( $this->category_list as $cat_id => $cat_name )

    {

      $cat_id = intval($cat_id);

      $cat_name = htmlspecialchars($cat_name);

      $category_list .= "<option value=\"$cat_id\">$cat_name</option>\n                    ";

    }

    // FIXME: these should really call addslashes and htmlspecialchars

    $parser->assign_vars(array(

        'INSTANCE_ID' => $this->instance_id,

        'FORUM_NAME' => htmlspecialchars($this->forum_name),

        'FORUM_DESC' => htmlspecialchars($this->forum_desc),

        'FORM_ACTION' => makeUrlNS('Special', 'DecirAdmin', 'module=' . $paths->nslist['Admin'] . 'DecirForums', true),

        'TYPE_FORUM' => FORUM_FORUM,

        'TYPE_CATEGORY' => FORUM_CATEGORY,

        'CATEGORY_LIST' => $category_list

      ));

    $parser->assign_bool(array(

      'mode_is_create' => ( $this->form_mode == DECIR_ADMIN_MODE_CREATE ),

      'show_opts_category' => ( $this->form_mode == DECIR_ADMIN_MODE_CREATE ? true : $this->forum_type == FORUM_CATEGORY ),

      'show_opts_forum' => ( $this->form_mode == DECIR_ADMIN_MODE_CREATE ? true : $this->forum_type == FORUM_FORUM ),

      'type_is_forum' => ( $this->forum_type != FORUM_CATEGORY ),

      'need_category' => ( $this->form_mode == DECIR_ADMIN_MODE_CREATE && $this->need_category )

    ));

    return $parser->run();

  }

}

?>