<?php

/**
 * @file
 * Install file for Countries module.
 */

/**
 * Implements hook_schema().
 */
function countries_schema() {
  $schema['countries_country'] = array(
    'description' => 'Maintains a country database.',
    'fields' => array(
      'cid' => array(
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'description' => 'Primary Key: Unique country ID. Required for the country bundle.',
      ),
      'iso2' => array(
        'description' => 'ISO 3166-1 alpha-2 country code.',
        'type' => 'char',
        'length' => 2,
        'not null' => TRUE,
      ),
      'iso3' => array(
        'description' => 'ISO 3166-1 alpha-3 country code.',
        'type' => 'char',
        'length' => 3,
        'not null' => FALSE,
      ),
      'name' => array(
        'description' => 'ISO 3166-1 official short name.',
        'type' => 'varchar',
        'length' => 95,
        'not null' => TRUE,
      ),
      'official_name' => array(
        'description' => 'ISO 3166-1 official long name.',
        'type' => 'varchar',
        'length' => 127,
        'not null' => TRUE,
      ),
      'numcode' => array(
        'description' => 'ISO 3166-1 numeric-3 country code.',
        'type' => 'int',
        'size' => 'small',
        'not null' => FALSE,
      ),
      'continent' => array(
        'description' => 'Continent code.',
        'type'        => 'char',
        'length'      => 2,
        'not null'    => TRUE,
      ),
      'enabled' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 1,
        'description' => 'Whether the country is enabled.',
      ),
      'language' => array(
        'description' => 'The {languages}.language of this node.',
        'type' => 'varchar',
        'length' => 12,
        'not null' => TRUE,
        'default' => LANGUAGE_NONE,
      ),
    ),
    'primary key' => array('cid'),
    'unique keys' => array(
      'iso2' => array('iso2'),
      'name' => array('name'),
    ),
    'indexes' => array(
      'enabled' => array('enabled'),
      'continent' => array('continent'),
    ),

  );

  return $schema;
}

/**
 * Implements hook_field_schema().
 */
function countries_field_schema($field) {
  return array(
    'columns' => array(
      'iso2' => array(
        'type' => 'varchar',
        'length' => 2,
        'not null' => FALSE,
      ),
    ),
    'indexes' => array(
      'iso2' => array('iso2'),
    ),
  );
}

/**
 * Implements hook_install().
 */
function countries_install() {
  // Import the data.
  countries_import_csv();
  $t = get_t();
  drupal_set_message($t('Visit the countries !config_page to import the most recent changes from the ISO 3166-1 standard.',
    array(
      '!config_page' => l($t('configuration page'), 'admin/config/regional/countries/import'),
    )));
}

/**
 * Implements hook_uninstall().
 */
function countries_uninstall() {
  variable_del('countries_continents');
  variable_del('countries_csv_datasource');
  variable_del('countries_admin_overview_columns');
}


/**
 * Helper function to inform users about available updates.
 */
function countries_install_available_update_message($link) {
  $t = get_t();
  drupal_set_message($t('Visit the countries !config_page to import the most recent changes from the !link.',
    array(
      '!config_page' => l($t('configuration page'), 'admin/config/regional/countries/import'),
      '!link' => $link,
    )));
}

/**
 * Helper function to import countries.
 */
function countries_import_csv() {
  $t = get_t();
  $countries = array();
  $handle = fopen(dirname(__FILE__) . '/countries.csv', 'r');
  $headers = fgetcsv($handle, 1024, ",");
  while (($row = fgetcsv($handle, 1024, ",")) !== FALSE) {
    // The iso2 data.
    $row[0] = trim($row[0]);
    // The iso3 data.
    $row[1] = empty($row[1]) || $row[1] == 'NULL' ? '' : trim($row[1]);
    // The name data.
    $row[2] = empty($row[2]) || $row[2] == 'NULL' ? '' : $t(trim($row[2]));
    // The official name data.
    $row[3] = empty($row[3]) || $row[3] == 'NULL' ? '' : $t(trim($row[3]));
    // The number code data.
    $row[4] = empty($row[4]) || $row[4] == 'NULL' ? 0 : trim($row[4]);
    // The continent data.
    $row[5] = empty($row[5]) || $row[5] == 'NULL' ? 'UN' : trim($row[5]);
    // The enabled data.
    $row[6] = empty($row[6]) || $row[6] == 'NULL' ? 0 : 1;
    if (!empty($row[0]) && $row[0] != 'NULL') {
      $countries[$row[0]] = array(
        'iso2' => $row[0],
        'iso3' => $row[1],
        'name' => $row[2],
        'official_name' => $row[3],
        'numcode' => $row[4],
        'continent' => $row[5],
        'enabled' => $row[6],
      );
    }
  }
  fclose($handle);
  include_once DRUPAL_ROOT . '/includes/iso.inc';
  foreach (_country_get_predefined_list() as $code => $name) {
    if (array_key_exists($code, $countries)) {
      $countries[$code]['name'] = $name;
      $countries[$code]['enabled'] = 1;
    }
    else {
      drupal_set_message($t('Missing details for ISO 3166-1 alpha-2 code %code for %name in Countries data.', array('%code' => $code, '%name' => $name)), 'warning');
      $countries[$code] = array(
        'iso2' => $code,
        'iso3' => '',
        'name' => $name,
        'official_name' => '',
        'continent' => 'UN',
        'enabled' => 1,
        'numcode' => 0,
      );
    }
  }
  $insert = db_insert('countries_country')->fields(array(
    'iso2',
    'iso3',
    'name',
    'official_name',
    'continent',
    'enabled',
    'numcode',
  ));
  foreach ($countries as $country) {
    $insert->values($country);
  }
  $insert->execute();
  watchdog('countries', "Pre-populated countries data.");
}

/**
 * This adds a translatable country possibility.
 */
function countries_update_7101() {
  db_add_field('countries_country', 'language', array(
    'description' => 'The {languages}.language of this node.',
      'type' => 'varchar',
      'length' => 12,
      'not null' => TRUE,
      'default' => LANGUAGE_NONE,
  ));
}

/**
 * Convert fields into option module select lists.
 */
function countries_update_7200() {
  foreach (field_read_fields(array(), array('include_inactive' => TRUE)) as $field_name => $info) {
    if ($info['module'] == 'countries' && $info['type'] == 'country') {
      $field_updated = isset($info['settings']['continents']);
      foreach (field_read_instances(array('field_name' => $field_name), array('include_inactive' => TRUE)) as $instance_info) {
        if (!$field_updated) {
          if (!isset($info['settings']['continents']) && isset($instance_info['widget']['settings'])) {
            $info['settings'] += $instance_info['widget']['settings'];
            field_update_field($info);
            $field_updated = TRUE;
          }
        }
        if ($instance_info['widget']['type'] == 'country_select') {
          $instance_info['widget']['type'] = 'options_select';
          $instance_info['widget']['module'] = 'options';
          $instance_info['widget']['settings'] = array();
          field_update_instance($instance_info);
        }
      }
      // Set the defaults if required.
      if (!$field_updated) {
        $info['settings'] += array(
          'enabled' => COUNTRIES_ENABLED,
          'continents' => array(),
        );
        field_update_field($info);
      }
    }
  }
}

/**
 * This drops the unique indexes on the official name, ISO3 and NumCode.
 *
 * These fields are not required, so this will lead to PDO exceptions if two or
 * more countries have these fields left blank.
 */
function countries_update_7202() {
  db_drop_unique_key('countries_country', 'iso3');
  db_drop_unique_key('countries_country', 'numcode');
  db_drop_unique_key('countries_country', 'official_name');
}

/**
 * This updates the display settings to handle the new singular icon formatter.
 */
function countries_update_7203() {
  if (!module_exists('countryicons')) {
    return;
  }
  $flush = FALSE;
  foreach (field_info_fields() as $field_name => $field) {
    if ($field['type'] == 'country' && !empty($field['bundles'])) {
      foreach ($field['bundles'] as $entity_type => $bundles) {
        foreach ($bundles as $bundle) {
          $changed = FALSE;
          $instance = field_info_instance($entity_type, $field_name, $bundle);
          if (!empty($instance['display'])) {
            foreach ($instance['display'] as $view_mode => &$display) {
              if (strpos($display['type'], 'country_countryicons_') === 0) {
                list(, , $icon_type, $icon_set_name) = explode('_', $display['type'], 4);
                $property = '';
                if ($icon_type == 'imagename') {
                  $property = 'name';
                  $icon_type = 'image';
                }
                $display['type'] = 'country_icon';
                $display['settings']['countryiconset'] = $icon_type . '_' . $icon_set_name;
                $display['settings']['property'] = '';
                $changed = TRUE;
              }
            }
          }
          if ($changed) {
            field_update_instance($instance);
            $flush = TRUE;
          }
        }
      }
    }
  }
  if ($flush) {
    field_cache_clear();
  }
}

/**
 * Informs the user about the latest round of name changes.
 *
 * The name field is 100% in sync with the ISO standard with this release.
 */
function countries_update_7205() {
  $t = get_t();
  $link = l($t('ISO Newsletter !version', array('!version' => 'VI-14')),
    'http://www.iso.org/iso/iso_3166-1_newsletter_vi-14_name_change_state_of_palestine.pdf',
    array('external' => 1));
  countries_install_available_update_message($link);
  cache_clear_all();
}