#!/usr/bin/env php
<?php
/*
 +-----------------------------------------------------------------------+
 | bin/update.sh                                                         |
 |                                                                       |
 | This file is part of the Roundcube Webmail client                     |
 | Copyright (C) 2010-2011, The Roundcube Dev Team                       |
 |                                                                       |
 | Licensed under the GNU General Public License version 3 or            |
 | any later version with exceptions for skins & plugins.                |
 | See the README file for a full license statement.                     |
 |                                                                       |
 | PURPOSE:                                                              |
 |   Check local configuration and database schema after upgrading       |
 |   to a new version                                                    |
 +-----------------------------------------------------------------------+
 | Author: Thomas Bruederli <roundcube@gmail.com>                        |
 +-----------------------------------------------------------------------+

 $Id$

*/

define('INSTALL_PATH', realpath(dirname(__FILE__) . '/..') . '/' );

require_once INSTALL_PATH . 'program/include/clisetup.php';
require_once INSTALL_PATH . 'installer/rcube_install.php';

// get arguments
$opts = get_opt(array('v' => 'version'));

// ask user if no version is specified
if (!$opts['version']) {
  echo "What version are you upgrading from? Type '?' if you don't know.\n";
  if (($input = trim(fgets(STDIN))) && preg_match('/^[0-9.]+[a-z-]*$/', $input))
    $opts['version'] = $input;
}

if ($opts['version'] && version_compare($opts['version'], RCMAIL_VERSION, '>'))
  die("Nothing to be done here. Bye!\n");


$RCI = rcube_install::get_instance();
$RCI->load_config();

if ($RCI->configured) {
  $success = true;
  
  if ($messages = $RCI->check_config()) {
    $success = false;
    $err = 0;

    // list missing config options
    if (is_array($messages['missing'])) {
      echo "WARNING: Missing config options:\n";
      echo "(These config options should be present in the current configuration)\n";

      foreach ($messages['missing'] as $msg) {
        echo "- '" . $msg['prop'] . ($msg['name'] ? "': " . $msg['name'] : "'") . "\n";
        $err++;
      }
      echo "\n";
    }

    // list old/replaced config options
    if (is_array($messages['replaced'])) {
      echo "WARNING: Replaced config options:\n";
      echo "(These config options have been replaced or renamed)\n";

      foreach ($messages['replaced'] as $msg) {
        echo "- '" . $msg['prop'] . "' was replaced by '" . $msg['replacement'] . "'\n";
        $err++;
      }
      echo "\n";
    }

    // list obsolete config options (just a notice)
    if (is_array($messages['obsolete'])) {
      echo "NOTICE: Obsolete config options:\n";
      echo "(You still have some obsolete or inexistent properties set. This isn't a problem but should be noticed)\n";

      foreach ($messages['obsolete'] as $msg) {
        echo "- '" . $msg['prop'] . ($msg['name'] ? "': " . $msg['name'] : "'") . "\n";
        $err++;
      }
      echo "\n";
    }

    // ask user to update config files
    if ($err) {
      echo "Do you want me to fix your local configuration? (y/N)\n";
      $input = trim(fgets(STDIN));

      // positive: let's merge the local config with the defaults
      if (strtolower($input) == 'y') {
        $copy1 = $copy2 = $write1 = $write2 = false;
        
        // backup current config
        echo ". backing up the current config files...\n";
        $copy1 = copy(RCMAIL_CONFIG_DIR . '/main.inc.php', RCMAIL_CONFIG_DIR . '/main.old.php');
        $copy2 = copy(RCMAIL_CONFIG_DIR . '/db.inc.php', RCMAIL_CONFIG_DIR . '/db.old.php');
        
        if ($copy1 && $copy2) {
          $RCI->merge_config();
        
          echo ". writing " . RCMAIL_CONFIG_DIR . "/main.inc.php...\n";
          $write1 = file_put_contents(RCMAIL_CONFIG_DIR . '/main.inc.php', $RCI->create_config('main', true));
          echo ". writing " . RCMAIL_CONFIG_DIR . "/main.db.php...\n";
          $write2 = file_put_contents(RCMAIL_CONFIG_DIR . '/db.inc.php', $RCI->create_config('db', true));
        }
        
        // Success!
        if ($write1 && $write2) {
          echo "Done.\n";
          echo "Your configuration files are now up-to-date!\n";

          if ($messages['missing']) {
            echo "But you still need to add the following missing options:\n";
            foreach ($messages['missing'] as $msg)
              echo "- '" . $msg['prop'] . ($msg['name'] ? "': " . $msg['name'] : "'") . "\n";
          }
        }
        else {
          echo "Failed to write config files!\n";
          echo "Grant write privileges to the current user or update the files manually according to the above messages.\n";
        }
      }
      else {
        echo "Please update your config files manually according to the above messages.\n\n";
      }
    }

    // check dependencies based on the current configuration
    if (is_array($messages['dependencies'])) {
      echo "WARNING: Dependency check failed!\n";
      echo "(Some of your configuration settings require other options to be configured or additional PHP modules to be installed)\n";

      foreach ($messages['dependencies'] as $msg) {
        echo "- " . $msg['prop'] . ': ' . $msg['explain'] . "\n";
      }
      echo "Please fix your config files and run this script again!\n";
      echo "See ya.\n";
    }
  }

  // check database schema
  if ($RCI->config['db_dsnw']) {
    $DB = new rcube_mdb2($RCI->config['db_dsnw'], '', false);
    $DB->db_connect('w');
    if ($db_error_msg = $DB->is_error()) {
      echo "Error connecting to database: $db_error_msg\n";
      $success = false;
    }
    else if ($err = $RCI->db_schema_check($DB, false)) {
      $updatefile = INSTALL_PATH . 'SQL/' . (isset($RCI->db_map[$DB->db_provider]) ? $RCI->db_map[$DB->db_provider] : $DB->db_provider) . '.update.sql';
      echo "WARNING: Database schema needs to be updated!\n";
      echo join("\n", $err) . "\n\n";
      $success = false;
      
      if ($opts['version']) {
        echo "Do you want to run the update queries to get the schmea fixed? (y/N)\n";
        $input = trim(fgets(STDIN));
        if (strtolower($input) == 'y') {
          $success = $RCI->update_db($DB, $opts['version']);
        }
      }
      
      if (!$success)
        echo "Open $updatefile and execute all queries below the comment with the currently installed version number.\n";
    }
  }
  
  // index contacts for fulltext searching
  if (version_compare($opts['version'], '0.6', '<')) {
    system(INSTALL_PATH . 'bin/indexcontacts.sh');
  }
  
  if ($success) {
    echo "This instance of Roundcube is up-to-date.\n";
    echo "Have fun!\n";
  }
}
else {
  echo "This instance of Roundcube is not yet configured!\n";
  echo "Open http://url-to-roundcube/installer/ in your browser and follow the instuctions.\n";
}

echo "\n";

?>
