<?php

/**
 * Implementation of hook_enable().
 */
function strongarm_enable() {
  // Weight strongarm exceptionally light.
  db_query("UPDATE {system} SET weight = -1000 WHERE name = 'strongarm' AND type = 'module'");
}

/**
 * Update 6100: Weight strongarm exceptionally light.
 */
function strongarm_update_6100() {
  $ret = array();
  $ret[] = update_sql("UPDATE {system} SET weight = -1000 WHERE name = 'strongarm' AND type = 'module'");
  return $ret;
}

/**
 * Update 6200: Install CTools
 */
function strongarm_update_6200() {
  drupal_install_modules(array('ctools'));
  $modules = module_list();
  if (!isset($modules['ctools'])) {
    return array('#abort' => array('success' => FALSE, 'query' => 'Could not enable CTools.'));
  }
  return array(array('success' => TRUE, 'query' => 'Enabled CTools successfully.'));
}

/**
 * Update 6201: Set all strongarm 1.x variables that are not already set.
 */
function strongarm_update_6201() {
  $ret = array();
  $modules = module_implements('strongarm');
  foreach ($modules as $module) {
    $variables = module_invoke($module, 'strongarm');
    foreach ($variables as $variable => $value) {
      $exists = db_result(db_query("SELECT name FROM {variable} WHERE name = '%s'", $variable));
      if (!$exists && !(is_object($value) && isset($value->api_version))) {
        variable_set($variable, $value);
        $ret[] = array('success' => TRUE, 'query' => "Set 1.x strongarmed variable {$variable} in the database.");
      }
    }
  }
  return $ret;
}

/**
 * Update 6202: Set all strongarm variables that are only set in code in the database.
 */
function strongarm_update_6202() {
  module_load_include('module', 'strongarm', 'strongarm');
  $ret = array();
  $variables = strongarm_vars_load(TRUE, TRUE);
  if (!empty($variables)) {
    foreach ($variables as $var_name => $var) {
      $exists = db_result(db_query("SELECT name FROM {variable} WHERE name = '%s'", $var_name));
      if (!$exists) {
        variable_set($var_name, $var->value);
      }
    }
  }
  return $ret;
}