<?php
/*
 * 工具服务
 */

namespace App\Services;
class ToolService
{
    // 静态对象
    protected static $instance = null;
    protected $apiUrls = [
            // ip编号信息
            'ip-api'=>'http://ip-api.com/json/%s?lang=%s',
            // IP解析
            'ip-api—data'=>'https://www.ip.cn/api/index?ip=%s&type=1',
    ];

    /**
     * @return static|null
     */
    public static function make(){
        if(!self::$instance){
            self::$instance = new static();
        }

        return self::$instance;
    }

    /**
     * 获取IP对应地址
     * @param $ip IP
     * @param $returnKey 返回数据格式：返回某个字段，空返回全部
     * @param $lang 返回数据语言格式：zh-CN（中文）、en(英文拼音)
     * @return array|bool
     */
    public function getIpAddress($ip, $returnKey = '', $lang='zh-CN'){
        $apiUrl = $this->apiUrls['ip-api'];
        if(empty($urls) || empty($ip)){
            return false;
        }

        $cacheKey = "caches:address:ip_".$ip.'_'.$returnKey;
        $result = RedisService::get($cacheKey);
        $data = isset($result['data']) && !is_array($result['data'])? trim($result['data']) : '';
        if(!empty($data)){
            return $data;
        }

        $apiUrl = sprintf($apiUrl, $ip, $lang);
        $result = httpRequest($apiUrl,'','get');
        $status = isset($result['status'])? $result['status'] : '';
        if($status == 'success'){
            $result = [
                'country'=> isset($result['country'])? strtolower($result['country']) : '中国',
                'countryCode'=> isset($result['countryCode'])? strtolower($result['countryCode']) : 'zh-CN',
                'region'=> isset($result['region'])? $result['region'] : '',
                'regionName'=> isset($result['regionName'])? $result['regionName'] : '',
                'city'=> isset($result['city'])? $result['city'] : '',
                'lat'=> isset($result['lat'])? $result['lat'] : '',
                'lng'=> isset($result['lon'])? $result['lon'] : '',
                'ip'=> isset($result['query'])? $result['query'] : '',
            ];

            $data = $returnKey && isset($result[$returnKey])? $result[$returnKey] : $result;
            if(!empty($data)){
                RedisService::set($cacheKey, ['apiUrl'=> $apiUrl, 'data'=> $data, 'result'=> $result], 3600);
                return $data;
            }
        }
        return false;
    }
}