<?php
/*
 * Decir
 * Version 0.1
 * Copyright (C) 2007 Dan Fuhry
 * install.php - Database installation wizard
 *
 * 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.
 */

require('common.php');

if ( $session->auth_level < USER_LEVEL_ADMIN )
{
  header('Location: ' . makeUrlComplete('Special', 'Login/' . $paths->page, 'level=9', true));
  exit;
}

function install_decir()
{
  global $db, $session, $paths, $template, $plugins; // Common objects
  if ( $session->auth_level < USER_LEVEL_ADMIN )
    die('Snotty son of a b**** you are being today...');
  
  // Build an array of queries
  $schema = @file_get_contents( DECIR_ROOT . '/install.sql' );
  if ( !$schema )
  {
    echo '<pre>Decir installation error: can\'t load schema file</pre>';
    return false;
  }
  
  // Variables
  $schema = str_replace('{{TABLE_PREFIX}}', table_prefix, $schema);
  
  $schema = explode("\n", $schema);
  
  foreach ( $schema as $i => $sql )
  {
    $query =& $schema[$i];
    $t = trim($query);
    if ( empty($t) || preg_match('/^(\#|--)/i', $t) )
    {
      unset($schema[$i]);
      unset($query);
    }
  }
  
  $schema = array_values($schema);
  $schema = implode("\n", $schema);
  $schema = explode(";\n", $schema);
  
  foreach ( $schema as $i => $sql )
  {
    $query =& $schema[$i];
    if ( substr($query, ( strlen($query) - 1 ), 1 ) != ';' )
    {
      $query .= ';';
    }
  }
  
  foreach ( $schema as $sql )
  {
    $q = $db->sql_query($sql);
    if ( !$q )
    {
      echo '<pre>Decir installation failed: ' . $db->get_error() . '</pre>';
      return false;
    }
  }
  
  return true;
}

if ( $v = getConfig('decir_version') )
{
  $mode = 'upgrade';
  $upg_ver = $v;
}
else
{
  $mode = 'install';
}

$page = ( isset($_POST['step']) && in_array($_POST['step'], array('welcome', 'install', 'finish')) ) ? $_POST['step'] : 'welcome';

if ( $page == 'finish' )
{
  require('forum_index.php');
}
else
{

  $template->header();
  
  switch($page)
  {
    case 'welcome':
      ?>
      <h3>Welcome to Decir, the Enano bulletin board suite.</h3>
      <p>Before you can use your forum, we'll need to run a few database queries to get the forum set up.</p>
      <form action="<?php echo makeUrl($paths->page); ?>" method="post">
        <input type="hidden" name="step" value="install" />
        <input type="submit" value="Continue" style="display: block; margin: 0 auto;" />
      </form>
      <?php
      break;
    case 'install':
      $result = install_decir();
      if ( $result ):
        setConfig('decir_version', ENANO_DECIR_VERSION);
        setConfig('decir_install_date', time());
        ?>
        <p>Decir has been successfully installed.</p>
        <form action="<?php echo makeUrl($paths->page); ?>" method="post">
          <input type="hidden" name="step" value="finish" />
          <input type="submit" name="do_install_finish" value="Next &gt;" style="display: block; margin: 0 auto;" />
        </form>
        <?php
      else:
        echo 'ERROR: Decir installation failed.';
      endif;
      break;
  }
  
$template->footer();
  
}