<?php
/**
 * IP查询服务
 * @author wesmielr
 */
namespace app\index\service;
class IpService
{
    /**
     * 获取IP对应地址
     * @param $ip IP
     * @param $format 返回数据格式：1-直接返回地址，2-返回数组
     * @return array|bool
     */
    public static function getAddress($ip, $format = 1){
        $urls = config('api.urls');
        if(empty($urls) || empty($ip)){
            return false;
        }

        $cacheKey = "address:ip:".$ip.'_'.$format;
        $result = RedisService::get($cacheKey);
        $data = isset($result['data'])? trim( $result['data']) : '';
        if(!empty($data)){
            return $data;
        }

        // 解析获取地址
        foreach ($urls as $key => $apiUrl){
            $apiUrl = sprintf($apiUrl, $ip);
            $result = httpGet($apiUrl,'array',5);
            $data = self::getResult($key, $result, $format);
            if(!empty($data)){
                RedisService::set($cacheKey, ['apiUrl'=> $apiUrl, 'data'=> $data], 7*24*3600);
                return $data;
            }
        }

        return false;
    }

    /**
     * 解析结果数据
     * @param $apiName 接口名称
     * @param $result 接口返回数据
     * @return array
     */
    private static function getResult($apiName, $result, $format){
        switch ($apiName){
            case 'pconline':  // 太平洋
                $address = [];
                if(isset($result['pro'])){
                    $address[] = isset($result['pro'])? $result['pro'] : '';
                }
                if(isset($result['city'])){
                    $address[] = isset($result['city'])? $result['city'] : '';
                }
                return $format==1 && $address? implode(' ', $address) : $result;
                break;
            case 'taobao': // 淘宝
                $address = [];
                $result = isset($result['data'])? $result['data'] : [];
                if(isset($result['region'])){
                    $address[] = isset($result['region'])? $result['region'] : '';
                }
                if(isset($result['city'])){
                    $address[] = isset($result['city'])? $result['city'] : '';
                }
                return $format==1 && $address? implode(' ', $address) : $result;
                break;
            default: // 默认
                return $format==1? (isset($result['city'])? $result['city'] : '') : $result;
        }
    }
}