<?php
// $Id$

/**
 * Implementation of hook_install().
 */
function locale_install() {
  // locales_source.source and locales_target.target are not used as binary
  // fields; non-MySQL database servers need to ensure the field type is text
  // and that LIKE produces a case-sensitive comparison.

  // Create tables.
  drupal_install_schema('locale');

  db_query("INSERT INTO {languages} (language, name, native, direction, enabled, weight, javascript) VALUES ('en', 'English', 'English', '0', '1', '0', '')");
}

/**
 * @defgroup updates-5.x-to-6.x Locale updates from 5.x to 6.x
 * @{
 */

/**
 * {locales_meta} table became {languages}.
 */
function locale_update_6001() {
  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("CREATE TABLE {languages} (
        language varchar(12) NOT NULL default '',
        name varchar(64) NOT NULL default '',
        native varchar(64) NOT NULL default '',
        direction int NOT NULL default '0',
        enabled int NOT NULL default '0',
        plurals int NOT NULL default '0',
        formula varchar(128) NOT NULL default '',
        domain varchar(128) NOT NULL default '',
        prefix varchar(128) NOT NULL default '',
        weight int NOT NULL default '0',
        PRIMARY KEY (language)
      ) /*!40100 DEFAULT CHARACTER SET UTF8 */ ");
      break;
    case 'pgsql':
      $ret[] = update_sql("CREATE TABLE {languages} (
        language varchar(12) NOT NULL default '',
        name varchar(64) NOT NULL default '',
        native varchar(64) NOT NULL default '',
        direction int NOT NULL default '0',
        enabled int NOT NULL default '0',
        plurals int NOT NULL default '0',
        formula varchar(128) NOT NULL default '',
        domain varchar(128) NOT NULL default '',
        prefix varchar(128) NOT NULL default '',
        weight int NOT NULL default '0',
        PRIMARY KEY (language)
      )");
      break;
  }

  // Save the languages
  $ret[] = update_sql("INSERT INTO {languages} (language, name, native, direction, enabled, plurals, formula, domain, prefix, weight) SELECT locale, name, '', 0, enabled, plurals, formula, '', locale, 0 FROM {locales_meta}");

  // Save the language count in the variable table
  $count = db_result(db_query('SELECT COUNT(*) FROM {languages} WHERE enabled = 1'));
  variable_set('language_count', $count);

  // Save the default language in the variable table
  $default = db_fetch_object(db_query('SELECT * FROM {locales_meta} WHERE isdefault = 1'));
  variable_set('language_default', (object) array('language' => $default->locale, 'name' => $default->name, 'native' => '', 'direction' => 0, 'enabled' => 1, 'plurals' => $default->plurals, 'formula' => $default->formula, 'domain' => '', 'prefix' => $default->locale, 'weight' => 0));

  $ret[] = update_sql("DROP TABLE {locales_meta}");
  return $ret;
}

/**
 * Change locale column to language. The language column is added by
 * update_fix_d6_requirements() in update.php to avoid a large number
 * of error messages from update.php.  All we need to do here is copy
 * locale to language and then drop locale.
 */
function locale_update_6002() {
  $ret = array();
  $ret[] = update_sql('UPDATE {locales_target} SET language = locale');
  db_drop_field($ret, 'locales_target', 'locale');
  return $ret;
}

/**
 * Adds a column to store the filename of the JavaScript translation file.
 */
function locale_update_6003() {
  $ret = array();
  db_add_field($ret, 'languages', 'javascript', array('type' => 'varchar', 'length' => 32, 'not null' => TRUE, 'default' => ''));
  return $ret;
}

/**
 * Remove empty translations, we don't need these anymore.
 */
function locale_update_6004() {
  $ret = array();
  $ret[] = update_sql("DELETE FROM {locales_target} WHERE translation = ''");
  return $ret;
}

/**
 * Prune strings with no translations (will be automatically re-registered if still in use)
 */
function locale_update_6005() {
  $ret = array();
  $ret[] = update_sql("DELETE s FROM {locales_source} s LEFT JOIN {locales_target} t ON s.lid = t.lid WHERE t.lid IS NULL");
  return $ret;
}

/**
 * @} End of "defgroup updates-5.x-to-6.x"
 */

/**
 * Implementation of hook_uninstall().
 */
function locale_uninstall() {
  // Delete all JavaScript translation files
  $files = db_query('SELECT javascript FROM {languages}');
  while ($file = db_fetch_object($files)) {
    if (!empty($file)) {
      file_delete(file_create_path($file->javascript));
    }
  }

  // Remove tables.
  drupal_uninstall_schema('locale');
}

/**
 * Implementation of hook_schema().
 */
function locale_schema() {
  $schema['languages'] = array(
    'fields' => array(
      // Language code, eg 'de' or 'en-US'.
      'language'   => array('type' => 'varchar', 'length' => 12, 'not null' => TRUE, 'default' => ''),
      // Language name in English.
      'name'       => array('type' => 'varchar', 'length' => 64, 'not null' => TRUE, 'default' => ''),
      // Native language name.
      'native'     => array('type' => 'varchar', 'length' => 64, 'not null' => TRUE, 'default' => ''),
      // LANGUAGE_RTL or LANGUAGE_LTR
      'direction'  => array('type' => 'int', 'not null' => TRUE, 'default' => 0),
      // Enabled flag.
      'enabled'    => array('type' => 'int', 'not null' => TRUE, 'default' => 0),
      // Number of plural indexes in this language.
      'plurals'    => array('type' => 'int', 'not null' => TRUE, 'default' => 0),
      // Plural formula in PHP code to evaluate to get plural indexes.
      'formula'    => array('type' => 'varchar', 'length' => 128, 'not null' => TRUE, 'default' => ''),
      // Domain to use for this language.
      'domain'     => array('type' => 'varchar', 'length' => 128, 'not null' => TRUE, 'default' => ''),
      // Path prefix to use for this language.
      'prefix'     => array('type' => 'varchar', 'length' => 128, 'not null' => TRUE, 'default' => ''),
      // Weight, used in lists of languages.
      'weight'     => array('type' => 'int', 'not null' => TRUE, 'default' => 0),
      // Location of JavaScript translation file.
      'javascript' => array('type' => 'varchar', 'length' => 32, 'not null' => TRUE, 'default' => ''),
    ),
    'primary key' => array('language'),
  );

  $schema['locales_source'] = array(
    'fields' => array(
      // Unique identifier of this string.
      'lid'       => array('type' => 'serial', 'not null' => TRUE),
      // Drupal path in case of online discovered translations or file path in case of imported strings.
      'location'  => array('type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => ''),
      // A module defined group of translations, see hook_locale().
      'textgroup' => array('type' => 'varchar', 'length' => 255, 'not null' => TRUE, 'default' => 'default'),
      // The original string in English.
      'source'    => array('type' => 'text', 'mysql_type' => 'blob', 'not null' => TRUE),
      // Drupal core version, which last used the string.
      'version'   => array('type' => 'varchar', 'length' => 20, 'not null' => TRUE, 'default' => 'none'),
    ),
    'primary key' => array('lid'),
    'indexes' => array
        ('source' => array(array('source', 30))),
  );

  $schema['locales_target'] = array(
    'fields' => array(
      // References locales_source.
      'lid'         => array('type' => 'int', 'not null' => TRUE, 'default' => 0),
      // Translation string value in this language.
      'translation' => array('type' => 'text', 'mysql_type' => 'blob', 'not null' => TRUE),
      // Language code referencing the languages table.
      'language'    => array('type' => 'varchar', 'length' => 12, 'not null' => TRUE, 'default' => ''),
      // Parent lid (lid of the previous string in the plural chain) in case of plural strings.
      'plid'        => array('type' => 'int', 'not null' => TRUE, 'default' => 0),
      // Plural index number in case of plural strings.
      'plural'      => array('type' => 'int', 'not null' => TRUE, 'default' => 0)
    ),
    'indexes' => array(
      'language'   => array('language'),
      'lid'    => array('lid'),
      'plid'   => array('plid'),
      'plural' => array('plural')
    ),
  );

  return $schema;
}