<?php

/**
 * 插件通用方法
 * Author: wbolt team
 * Author URI: https://www.wbolt.com
 */

class WBP
{

  public static $version = '1.1.0';

  public static function init() {}

  // 计算本地化key
  public static function set_localize_key($text = '')
  {
    $input = $text;
    if (function_exists('mb_convert_encoding') && function_exists('mb_detect_encoding')) {
      $input = mb_convert_encoding($text, 'UTF-8', mb_detect_encoding($text));
    }
    return hash('crc32b', $input);
  }

  // 获取缓存
  public static function cache_get($key, $group = 'wb_cache_plugin')
  {
    if (self::has_object_cache()) {
      return wp_cache_get($key, $group);
    }

    return get_transient($key);
  }

  // 设置缓存
  public static function cache_set($key, $value, $group = 'wb_cache_plugin', $expire = HOUR_IN_SECONDS)
  {
    if (self::has_object_cache()) {
      wp_cache_set($key, $value, $group, $expire);
    } else {
      set_transient($key, $value, $expire);
    }
  }

  // 清除缓存
  public static function cache_delete($key, $group = 'wb_cache_plugin')
  {

    if (self::has_object_cache()) {
      wp_cache_delete($key, $group);
    } else {
      delete_transient($key);
    }
  }

  // 重置缓存
  public static function cache_reset($group = 'wb_cache_plugin', $slug = 'wb_cache')
  {
    if (self::has_object_cache()) {
      if (wp_cache_supports('flush_group')) {
        wp_cache_flush_group($group);
      } else {
        wp_cache_flush();
      }
    } else {
      self::delete_all_transients($slug);
    }
  }

  public static function has_object_cache()
  {
    static $has_cache = null;

    if (null === $has_cache) {
      $has_cache = wp_using_ext_object_cache();

      // 双重验证防止错误配置
      if ($has_cache && !file_exists(WP_CONTENT_DIR . '/object-cache.php')) {
        $has_cache = false;
      }
    }

    return $has_cache;
  }

  public static function delete_all_transients($slug)
  {
    global $wpdb;

    // 删除普通 transient
    $query = $wpdb->prepare(
      "DELETE FROM $wpdb->options 
        WHERE option_name LIKE %s 
        OR option_name LIKE %s",
      '_transient_' . $slug . '_%',
      '_transient_timeout_' . $slug . '_%'
    );
    $wpdb->query($query);
  }

  /**
   * 获取json配置文件
   *
   * @param string $file_name
   * @param string $json_file_dir
   * @return array
   */
  public static function wb_get_json_fields($file_name, $json_file_dir = 'json/')
  {
    $locale = get_locale();
    $suport_locales = ['zh_TW', 'en_US']; // 支持的本地语言
    $default_file = $json_file_dir . 'zh_CN/' . $file_name;

    $cnf_fields_path = in_array($locale, $suport_locales) ? $json_file_dir . $locale . '/' . $file_name : $default_file;

    $cnf_fields_file = '{}';
    if (file_exists($cnf_fields_path)) {
      $cnf_fields_file = file_get_contents($cnf_fields_path) ?? '{}';
    } elseif (file_exists($default_file)) {
      $cnf_fields_file = file_get_contents($default_file) ?? '{}';
    }
    return json_decode($cnf_fields_file, true);
  }
}