<?php

namespace App\Handlers;

use GuzzleHttp\Client;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Log;
use TencentCloud\Common\Credential;
use TencentCloud\Common\Profile\ClientProfile;
use TencentCloud\Common\Profile\HttpProfile;
use TencentCloud\Ocr\V20181119\Models\IDCardOCRRequest;
use TencentCloud\Ocr\V20181119\OcrClient;

class IdentifyAddress {
    /**
     * Function:识别地址
     * Author:cyw0413
     */
    public function getDiscern($discernDel)
    {
        if (empty($discernDel)) {
            throw new  \Exception("请传入要识别的地址");
        }

        $discernDel_left = explode ('[', $discernDel);
        if (!isset($discernDel_left[1])) {
            throw new  \Exception("你填写的地址规则错误,手机号码应该用[]");
        }
        $discernDel_right = explode (']', $discernDel_left[1]);
        if (!isset($discernDel_right[1]) || empty($discernDel_right[1])) {
            throw new  \Exception("你填写的地址规则错误,手机号码应该用[]");
        }

        $name = $discernDel_left[0];
        if (empty($name)) {
            throw new  \Exception("你填写的姓名有误！");
        }
        $mobile = $discernDel_right[0];
        if (empty($mobile) ) {//|| checkMobile($mobile) == 0
            throw new  \Exception("你填写的手机号码格式有误！");
        }
        $address = trim ($discernDel_right[1]);
        if (empty($address)) {
            throw new  \Exception("你填写的地址不能为空");
        }

        $var_address = $this->getAddressArrar($address);
        $var_address['name'] = $name;
        $var_address['mobile'] = $mobile;

        return $var_address;

    }

    /**
     * Function:地址的处理
     * Author:cyw0413
     * @param $address
     * @return array
     * @throws \Exception
     */
    function getAddressArrar($address){
        // 获取所有地址递归列表
        $regions = $this->getRegions();
        // 初始化数据
        $province = $city = $district = [];
        // 先查找省份-第一级地区
        $province = $this->checkAddress($address, $regions);
        if($province){

            $province_arr = ['110000','300000','404100','310000'];  //4个市辖区如果地址不存在二级（市辖区，县），则特殊处理
            if(!isset($province['region_code'])){
                throw new \Exception("请正确填写省份(市辖区)");
            }
            // 查找城市-第二级地区
            $city = $this->checkAddress($address, $province['list']);
            //这里只处理4个市辖区，可能还有多种情况，待发现
            if(in_array($province['region_code'],$province_arr)  && count($city['list']) == 0){
                $city = $this->checkAddress('市辖区', $province['list']);
                if($city){
                    // 查找地区-第三级地区
                    $district = $this->checkAddress($address, $city['list']);
                    //如果没有找到，则查找另外一个二级地区
                    if(!isset($district['region_code'])){
                        $city = $this->checkAddress('县', $province['list']);
                        // 查找地区-第三级地区
                        $district = $this->checkAddress($address, $city['list']);
                    }
                }
            }else{

                if($city){
                    // 查找地区-第三级地区
                    $district = $this->checkAddress($address, $city['list']);
                }
            }

        }else{
            //省份不填，报错误
            throw new \Exception("省份没填写，请检查");
        }

        return $this->getAddressInfo($address, $province, $city, $district);
    }


    /**
     * 匹配正确的城市地址
     * @param $address
     * @param $city_list
     * @param int $force
     * @param int $str_len
     * @return array
     **/
    function checkAddress($address, $city_list, $force=false, $str_len=2){
        $num = 0;
        $list = array();
        $result = array();
        // 遍历所有可能存在的城市
        foreach ($city_list as $city_key=>$city){
            $city_name = mb_substr($city['region_name'], 0, $str_len,'utf-8');
            // 判断是否存包含当前地址字符
            $city_arr = explode($city_name, $address);


            // 如果存在相关字眼，保存该地址的所有子地址
            if(count($city_arr) >= 2){
                // 必须名称长度同时达到当前比对长度
                if(strlen($city['region_name']) < $str_len){
                    continue;
                }
                $num ++;
                if(isset($city['child'])){
                    $list = $list + $city['child'];
                }

                $result[] = array(
                    'region_code' => $city_key,
                    'region_name' => $city['region_name'],
                    'list' =>$list,
                );
            }
        }

        // 如果有多个存在，则加大字符匹配长度
        if($num > 1 || $force){
            $region_name1 = $result[0]['region_name'];
            $region_name2 = $result[1]['region_name'];

            if(strlen($region_name1) == strlen($region_name2) && strlen($region_name1) == $str_len){
                $region_id1 = $result[0]['region_code'];
                $region_id2 = $result[1]['region_code'];
                $index = $region_id1 > $region_id2 ? 1 : 0;
                $result = $result[$index];
                return $result;
            }
            return $this->checkAddress($address, $city_list, $force, $str_len+1);
        } else {
            $result[0]['list'] = $list;
            return $result[0];
        }
    }


    /**
     * 根据原地址返回详细信息
     * @param $address
     * @param $province
     * @param $city
     * @param $area
     * @return array
     **/
    function getAddressInfo($address, $province, $city, $district){
        // 查找最后出现的地址 - 截取详细信息
        if(!isset($province['region_name'])){
            throw new \Exception("请检查并正确填写省份(市辖区)");
        }
        if(!isset($city['region_name'])){
            throw new \Exception("请检查并正确填写城市");
        }
        if(!isset($district['region_name'])){
            throw new \Exception("请检查并正确填写区域(县/区/镇)");
        }
        $find_str = '';
        if($province['region_name']){
            $find_str = $province['region_name'];
            if($city['region_name']){
                $find_str = $city['region_name'];
                if(isset($district['region_name']) && $district['region_name']){
                    $find_str = $district['region_name'];
                }
            }
        }
        // 截取详细的信息
        $find_str_len = mb_strlen($find_str,'utf-8');
        for($i=0; $i<$find_str_len-1; $i++){
            $substr = mb_substr($find_str,0,$find_str_len - $i, 'utf-8');
            $end_index = mb_strpos($address, $substr);
            if ($end_index){
                $address = mb_substr($address, $end_index + mb_strlen($substr) , mb_strlen($address) - $end_index);
            }
        }
        !empty($find_str) && $find_str = '|\S*' . $find_str;
        $area['info'] = preg_replace("/\s*|,|，|:|：{$find_str}/i", '', $address);
        if(empty($area['info'])){
            throw new \Exception("详细地址不存在，请检查");
        }

        return $address = [
            'province' => $province['region_code'],
            'city'     => $city['region_code'],
            'district' => $district['region_code'],
            'info'     => $area['info']
        ];
    }
}