<?php

namespace App\Services;

use App\Models\CityGps;
use App\Models\Profile;
use App\Utils\Common;
use Calchen\LaravelDingtalkRobot\DingtalkRobot;
use Calchen\LaravelDingtalkRobot\Message\TextMessage;
use Exception;
use Illuminate\Support\Facades\Redis;
use Illuminate\Support\Facades\Log;
use Throwable;
use Illuminate\Support\Facades\DB;
use Overtrue\Pinyin\Pinyin;
use App\Utils\Http;

class SaasMatchService
{
    //偏好要求字段
    const  prefer_attrs = [
        'min_age', 'max_age', 'min_height', 'max_height', 'is_same_city', 'is_same_resident_province'
    ];

    const degree = [
        '其他' => 0, '小学' => 1, '初中' => 2, '初中及初中以下' => 2, '中专' => 4, '高中' => 4,
        '高中/中专' => 4, '大专' => 5, '专科' => 5, '本科' => 6, '硕士' => 7, '硕士以上' => 7,'博士' => 8,
    ];

    function __construct()
    {
        // Log::notice('[CommonService] init global common services');
    }


    /**
     * 字符串截取指定长度
     * @param $text
     * @param $length
     * @param string $replace
     * @param string $encoding
     * @return string
     */
    static public function substring_format($text, $length, $replace = '......', $encoding = 'UTF-8')
    {
        if ($text && mb_strlen($text, $encoding) > $length) {
            return mb_substr($text, 0, $length, $encoding) . $replace;
        }
        return $text;
    }

    /**
     * 计算两个用户的分值
     * 将send_user_id 推给 user_id
     * @param $user_id
     * @param $send_user_id
     * @param bool $is_full
     * @return bool|mixed
     * @throws \Calchen\LaravelDingtalkRobot\Exceptions\Exception
     */
    public function calculateUserScore($user, $send_user)
    {
        //$match['userId'] = $user->user_id;
        //$match['sendUserId'] = $send_user->user_id;
        /** 计算年龄 */
        $match['age'] = $this->calculateAge($user, $send_user);
        /** 计算身高 */
        $match['stature'] = $this->calculateStature($user, $send_user);
        /** 计算信仰 */
        $match['belief'] = $this->calculateBelief($user, $send_user);
        /** 计算最低月收入 */
        $match['salary'] = $this->calculateSalary($user, $send_user);
        /** 计算学历 */
        $match['degree'] = $this->calculateDegreeScore($user, $send_user);
        /** 计算地域 */
        $match['regional'] = $this->calculateRegional($user, $send_user);
        $match['total_score'] = $match['age']['分值'] + $match['stature']['分值']
            + $match['belief']['分值'] + $match['degree']['分值'] + $match['regional']['分值'];
        return $match;
    }

    /**
     * 计算年龄分数
     * @param $user
     * @param $send_user
     * @return array
     * @throws \Calchen\LaravelDingtalkRobot\Exceptions\Exception
     */
    public function calculateAge($user, $send_user): array
    {

        $score = 10;
        $send_user_age = $this->getAge($send_user->birthday);
        if ($send_user_age < 18) {
            return ['code' => 1, '期望年龄' => '', '实际年龄' => $send_user_age, '分值' => 0];
        }
        $mate_conditon = json_decode($user->mate_conditon, true);
        if ($mate_conditon && $mate_conditon['age'] != '年龄不限') {
            list($min_age, $max_age) = explode("-", $mate_conditon['age']);
            $max_age = str_replace('岁', "", $max_age);
            //是否要求
            if ($min_age && $max_age) {          //有要求
                if ($send_user_age < $min_age) {
                    $subAge = $min_age - $send_user_age;
                    $score = $score + $subAge;
                    if ($score > 10) {
                        $score = 10;
                    }
                    return ['code' => 0, '期望年龄' => $min_age . '-' . $max_age . '之间，', '实际年龄' => $send_user_age, '分值' => $score];
                } elseif ($send_user_age > $max_age) {
                    $subAge = $send_user_age - $max_age;
                    $score = $score - $subAge;
                    if ($score < 0) {
                        $score = 0;
                    }
                    return ['code' => 0, '期望年龄' => $min_age . '-' . $max_age . '之间，', '实际年龄' => $send_user_age, '分值' => $score];
                } elseif ($send_user_age > $min_age && $send_user_age < $max_age) {
                    return ['code' => 0, '期望年龄' => $min_age . '-' . $max_age . '之间，', '实际年龄' => $send_user_age, '分值' => $score];
                } else {
                    return ['code' => 0, '期望年龄' => $min_age . '-' . $max_age . '之间，', '实际年龄' => $send_user_age, '分值' => $score];
                }
            } else {
                return ['code' => 0, '期望年龄' => $mate_conditon['age'], '实际年龄' => $send_user_age, '分值' => $score];
            }
        } else {
            return ['code' => 0, '期望年龄' => '无要求', '实际年龄' => $send_user_age, '分值' => $score];
        }

    }

    /**
     * 获取年龄
     * @param string $birthday 生日
     * @return integer 年龄
     */
    public function getAge($birthday): int
    {
        if (empty($birthday)) {
            return 0;
        }
        $age = strtotime($birthday);
        if ($age === false) {
            return 0;
        }
        list($y1, $m1, $d1) = explode("-", date("Y-m-d", $age));
        $now = strtotime("now");
        list($y2, $m2, $d2) = explode("-", date("Y-m-d", $now));
        $age = $y2 - $y1;
        if ((int)($m2 . $d2) < (int)($m1 . $d1))
            $age -= 1;
        return $age;
    }

    /**
     * 计算身高分数
     * @param $user
     * @param $send_user
     * @return array
     * @throws \Calchen\LaravelDingtalkRobot\Exceptions\Exception
     */
    public function calculateStature($user, $send_user): array
    {
        $score = 10;
        $mate_conditon = json_decode($user->mate_conditon, true);
        if ($mate_conditon && $mate_conditon['stature'] != '身高不限') {
            list($min_height, $max_height) = explode("-", $mate_conditon['stature']);
            $max_height = str_replace('cm', "", $max_height);
            if(empty($max_height)){
                $max_height = 190;
            }
            if (isset($min_height) || isset($max_height)) {
                if ($send_user->stature < $min_height) {
                    $subStature = $min_height - $send_user->stature;
                    $score = $score - $subStature;
                    if ($score < 0) {
                        $score = 0;
                    }
                    return ['code' => 0, '期望身高' => $min_height . '-' . $max_height . '之间，', '实际身高' => $send_user->stature, '分值' => $score];
                } elseif ($send_user->stature > $max_height) {
                    $subStature = $send_user->stature - $max_height;
                    $score = $score + $subStature;
                    if ($score > 10) {
                        $score = 10;
                    }
                    return ['code' => 0, '期望身高' => $min_height . '-' . $max_height . '之间，', '实际身高' => $send_user->stature, '分值' => $score];
                } elseif ($send_user->stature > $min_height && $send_user->stature < $max_height) {
                    return ['code' => 0, '期望身高' => $min_height . '-' . $max_height . '之间，', '实际身高' => $send_user->stature, '分值' => $score];
                } else {
                    return ['code' => 0, '期望身高' => $min_height . '-' . $max_height . '之间，', '实际身高' => $send_user->stature, '分值' => $score];
                }
            } else {
                return ['code' => 0, '期望身高' => '无要求，', '实际身高' => $send_user->stature, '分值' => $score];
            }
        } else {
            if ($send_user->stature) {
                return ['code' => 0, '期望身高' => '无要求，', '实际身高' => $send_user->stature, '分值' => $score];
            } else {
                return ['code' => 0, '期望身高' => '无要求，', '实际身高' => "未填写", '分值' => $score];
            }
        }
    }

    /**
     * 计算信仰分数
     * @param $user
     * @param $send_user
     * @throws \Calchen\LaravelDingtalkRobot\Exceptions\Exception
     */
    public function calculateBelief($user, $send_user): array
    {

        $score = 10;
        if ($user->mate_conditon) {
            $mate_conditon = json_decode($user->mate_conditon, true);
            //有要求信仰
            if ($mate_conditon && $mate_conditon['belief'] != '信仰不限') {
                //同信仰
                if ($mate_conditon['belief'] == $send_user->belief) {
                    return ['code' => 0, '要求信仰' => $mate_conditon['belief'], '用户信仰' => $send_user->belief, '分值' => $score];
                } else {
                    return ['code' => 0, '要求信仰' => $mate_conditon['belief'], '用户信仰' => $send_user->belief, '分值' => 0];
                }
            } else {
                return ['code' => 0, '要求信仰' => '未要求', '用户信仰' => $send_user->belief, '分值' => $score];
            }
        } else {
            return ['code' => 0, '要求信仰' => '未要求', '用户信仰' => $send_user->belief, '分值' => $score];
        }


    }

    /**
     * 计算月收入
     * @param $user
     * @param $send_user
     */
    public function calculateSalary($user, $send_user): array
    {
        $mate_conditon = json_decode($user->mate_conditon, true);
        $score = 10;
        if (isset($mate_conditon['income']) && $mate_conditon['income'] != '月收入不限') {
            if (strpos($mate_conditon['income'], '-')) {
                list($min_salary, $max_salary) = explode("-", $mate_conditon['income']);
                if (strpos($min_salary, '千')) {
                    $min_salary = str_replace('千', "", $min_salary);
                    $min_salary = $min_salary * 12;

                }
                if (strpos($max_salary, '千')) {
                    $max_salary = str_replace('千', "", $max_salary);
                    $max_salary = $max_salary * 12;
                }
                if (strpos($min_salary, '万')) {
                    $min_salary = str_replace('万', "", $min_salary);
                    $min_salary = $min_salary * 10 * 12;
                }

                if (strpos($max_salary, '万')) {
                    $max_salary = str_replace('万', "", $max_salary);
                    $max_salary = $max_salary * 10 * 12;
                }
            } elseif (strpos($mate_conditon['income'], '以上')) {
                $min_salary = str_replace('万以上', "", $mate_conditon['income']);
                $min_salary = $min_salary * 10 * 12;
                $max_salary = $min_salary;
            }

            if ($send_user->income) {
                if (strpos($send_user->income, '~')) {
                    list($send_user_min_salary, $send_user_max_salary) = explode('~', $send_user->income);
                    $send_user_max_salary = str_replace("w", "", $send_user_max_salary);
                    $send_user_salary = ($send_user_min_salary + $send_user_max_salary) / 2 * 10;
                    if ($min_salary > $send_user_salary) {
                        $sub_salary = $min_salary - $send_user_salary;
                        $score = $score - $sub_salary;
                        if ($score < 0) {
                            $score = 0;
                        }
                        return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪平均数' => $send_user_salary . '千', '分值' => $score];
                    } elseif ($max_salary < $send_user_salary) {
                        return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪平均数' => $send_user_salary . '千', '分值' => $score];
                    } elseif ($min_salary < $send_user_salary && $max_salary > $send_user_salary) {
                        return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪平均数' => $send_user_salary . '千', '分值' => $score];
                    }
                } elseif (strpos($send_user->income, '以下')) {
                    $send_user_max_salary = str_replace("w以下", "", $send_user->income);
                    $send_user_max_salary = $send_user_max_salary * 10;
                    if ($min_salary > $send_user_max_salary) {
                        $sub_salary = $min_salary - $send_user_max_salary;
                        $score = $score - $sub_salary;
                        if ($score < 0) {
                            $score = 0;
                        }
                        return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪' => $send_user_max_salary . '千以下', '分值' => $score];
                    } elseif ($send_user_max_salary > $max_salary) {
                        return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪' => $send_user_max_salary . '千以下', '分值' => $score];
                    } else {
                        return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪' => $send_user_max_salary . '千以下', '分值' => $score];
                    }

                } elseif (strpos($send_user->income, '以上')) {
                    $send_user_min_salary = str_replace("w以上", "", $send_user->income);
                    $send_user_min_salary = $send_user_min_salary * 10;
                    if ($min_salary > $send_user_min_salary) {
                        $sub_salary = $min_salary - $send_user_min_salary;
                        $score = $score - $sub_salary;
                        if ($score < 0) {
                            $score = 0;
                        }
                        return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪' => $send_user_min_salary . '千以上', '分值' => $score];
                    } elseif ($send_user_min_salary > $max_salary) {
                        return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪' => $send_user_min_salary . '千以上', '分值' => $score];
                    } else {
                        return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪' => $send_user_min_salary . '千以上', '分值' => $score];
                    }
                }
            } else {
                return ['code' => 0, '期望年薪' => $min_salary . '-' . $max_salary . '千', '实际年薪平均数' => "未设置", '分值' => 0];
            }
        } else {
            if ($send_user->income) {
                return ['code' => 0, '期望年薪' => "未设置", '实际年薪平均数' => $send_user->income, '分值' => $score];
            } else {
                return ['code' => 0, '期望年薪' => "未设置", '实际年薪平均数' => "未设置", '分值' => $score];
            }
        }
    }

    /**
     * 计算动态学历分数
     * @param $user
     * @param $send_user
     * @return array
     */
    public function calculateDegreeScore($user, $send_user)
    {
        $score = 10;
        if ($user->mate_conditon) {
            $mate_conditon = json_decode($user->mate_conditon, true);
            if ($mate_conditon['degree'] != '学历不限') {
                if (!$send_user->degree) {
                    return ['code' => 0, '要求学历' => $mate_conditon['degree'], '用户学历' => "未设置", '分值' => 0];
                } else {
                    //学历文字转为数字以备比较
                    $user_degree_number = self::degree[$mate_conditon['degree']];
                    $send_user_degree_number = self::degree[$send_user->degree];
                    if ($send_user_degree_number < $user_degree_number) {
                        $sub_degree = $user_degree_number - $send_user_degree_number;
                        $score = $score - $sub_degree;
                        return ['code' => 0, '要求学历' => $mate_conditon['degree'], '用户学历' => $send_user->degree, '分值' => $score];
                    } elseif ($send_user_degree_number > $user_degree_number) {
                        return ['code' => 0, '要求学历' => $mate_conditon['degree'], '用户学历' => $send_user->degree, '分值' => $score];
                    } else {
                        return ['code' => 0, '要求学历' => $mate_conditon['degree'], '用户学历' => $send_user->degree, '分值' => $score];
                    }
                }
            } else {
                return ['code' => 0, '要求学历' => '未设置', '用户学历' => $send_user->degree, '分值' => $score];
            }
        } else {
            return ['code' => 0, '要求学历' => '未设置', '用户学历' => $send_user->degree, '分值' => $score];
        }
    }

    /**
     * 计算地域分数
     * @param $user
     * @param $send_user
     * @return array
     */
    public function calculateRegional($user, $send_user): array
    {
        $score = 10;
        if ($user->mate_conditon) {
            $mate_conditon = json_decode($user->mate_conditon, true);
            if ($mate_conditon['location'] == '所在地不限') {
                return ['code' => 0, '要求所在地' => '所在地不限', '用户所在地' => $send_user->city, '分值' => $score];
            } elseif ($mate_conditon['location'] == '距离优先') {
                if (($user->province != $send_user->province || empty($send_user->province)) && ($user->resident_province != $send_user->resident_province || empty($send_user->resident_province))) {
                    //非同省同家乡 或者 没有地址信息
                    $score = 0;
                } elseif (($user->province != $send_user->province || empty($send_user->province)) && ($user->resident_province == $send_user->resident_province && $user->resident_city != $send_user->resident_city)) {
                    //非同省、同家乡省、非同家乡市
                    $score += $user->type == "single" ? 1 : 10;
                } elseif (($user->province != $send_user->province || empty($send_user->province)) && $user->resident_city == $send_user->resident_city) {
                    //非同省、同家乡省市
                    $score += $user->type == "single" ? 2 : 20;
                } elseif (($user->province == $send_user->province && $user->city != $send_user->city) && ($user->resident_province != $send_user->resident_province || empty($send_user->resident_province))) {
                    //同省非同市、非同家乡省
                    $score += $user->type == "single" ? 3 : 30;
                } elseif (($user->province == $send_user->province && $user->city != $send_user->city) && ($user->resident_province == $send_user->resident_province && $user->resident_city != $send_user->resident_city)) {
                    //同省非同市、同家乡省非同家乡市
                    $score += $user->type == "single" ? 3 : 30;
                } elseif (($user->province == $send_user->province && $user->city != $send_user->city) && $user->resident_city == $send_user->resident_city) {
                    //同省非同市、同家乡市
                    $score += $user->type == "single" ? 4 : 40;
                } elseif ($user->city != $send_user->city && $user->resident_province != $send_user->resident_province) {
                    //同市、同家乡省
                    $score += $user->type == "single" ? 4 : 40;
                } elseif (($user->province == $send_user->province && $user->city != $send_user->city) && $user->resident_city == $send_user->resident_city) {
                    //同省非同市、同家乡市
                    $score += $user->type == "single" ? 5 : 50;
                } elseif ($user->city == $send_user->city && $user->resident_city == $send_user->resident_city) {
                    //同省非同市、同家乡市
                    $score += $user->type == "single" ? 6 : 60;
                }
                return ['code' => 0, '要求' => '距离优先', '用户所在地' => $user->province, '分值' => $score];
            } else {
                if ($mate_conditon['location'] == $user->province) {
                    return ['code' => 0, '要求所在地' => $mate_conditon['location'], '用户所在地' => $user->province, '分值' => $score];
                } else {
                    return ['code' => 0, '要求所在地' => $mate_conditon['location'], '用户所在地' => $user->province, '分值' => 0];
                }
            }
        } else {
            return ['code' => 0, '要求所在地' => '未要求', '用户所在地' => $user->province, '分值' => 10];
        }
    }

    /**
     * 检测单身状态
     * @param $user
     * @param $send_user
     * @return array
     * @throws \Calchen\LaravelDingtalkRobot\Exceptions\Exception
     */
    public function checkType($user, $send_user): array
    {

        if (empty($user->type) || empty($user->sex) || empty($send_user->sex) || empty($send_user->type)) {
            return ['code' => 1, 'msg' => 'user_id = ' . $user->id . ', send_user_id =' . $send_user->id . " 有性别信息或者没有用户类型，"];
        }
        //类型不同
        if ($user->type != $send_user->type) {
            //单身
            if ($user->type == 'signle') {
                return ['code' => 1, 'msg' => 'receive_user_id = ' . $user->id . ',send_user_id = ' . $send_user->id . " 介绍人不能匹配给单身，"];
            }
        } else {
            //介绍人
            if ($send_user->type != 'single') {
                return ['code' => 1, 'msg' => 'receive_user_id = ' . $user->id . ',send_user_id = ' . $send_user->id . " 介绍人之间不能相互匹配，"];
            }
        }
        return ['code' => 0, 'msg' => ''];

    }

    /**
     * 查询城市gps
     * @param $city_pin_yin
     * @param $user
     * @param $city
     * @return array|false|mixed
     */
    public function getCityGps($city_pin_yin, $user, $city)
    {
        if (isset(self::$static_city_gps[$city_pin_yin])) {
            $city_gps = self::$static_city_gps[$city_pin_yin];
        } else {
            $city_gps = json_decode(Redis::get('cityGps:' . $city_pin_yin), true);
            if (empty($city_gps)) {
                //Log::warning('[calculateRegional] 从数据据查询城市!!!');
                $city_gps = CityGps::where('prefecture_level_city', $city)->select('prefecture_level_city', 'east_longitude', 'northern_latitude')->first();
                if (!empty($city_gps)) {
                    Redis::set('cityGps:' . $city_pin_yin, json_encode($city_gps));
                    self::$static_ai_reviews[$city_pin_yin] = $city_gps;
                } else {
                    Log::warning('[calculateRegional] 百度查询!!!');
                    $request_url = 'http://api.map.baidu.com/geocoder?';
                    $request_address = 'address=地址';
                    $request_output = '&output=json';
                    $request_key = '&key=nKGpPpuOlcOA3nPy9jHj28kywEkn1N08';
                    $request_city = '&city=' . $user->city;
                    $url = $request_url . $request_address . $request_output . $request_key . $request_city;
                    $result = Http::post($url, null);
                    if (!empty($result)) {
                        $result = json_decode($result, true);
                        if ($result['status'] == 'OK' && !empty($result['result']['location']['lng']) && !empty($result['result']['location']['lat'])) {
                            if ($result['result']['location']['lng'] == '104.102' || $result['result']['location']['lat'] == '30.6545') {
                                Log::warning('查询用户城市位置出错了!!! user_id = ' . $user->id . ' city = ' . $user->city);
                                return ['code' => 1, 'msg' => '查询用户城市位置出错了!!! user_id = ' . $user->id . ' city = ' . $user->city . '，'];
                            }
                            $insert = [
                                'east_longitude' => $result['result']['location']['lng'],
                                'northern_latitude' => $result['result']['location']['lat'],
                                'area_code' => '999999',
                                'province' => str_replace('省', '', $user->province),
                                'prefecture_level_city' => str_replace('市', '', $user->city),
                                'county_level_city' => str_replace('市', '', $user->city),
                                'ping_yin' => $city,
                                //'ping_yin' =>str_replace( '-','',$pinyin->permalink($city)),
                                'telephone_area_code' => '999999',
                                'postal_code' => '999999',
                            ];
                            CityGps::insert($insert);
                            Redis::set('cityGps:' . $city_pin_yin, json_encode($insert));
                            $city_gps = $insert;
                            self::$static_city_gps[$city_pin_yin] = $insert;
                        } else {
                            Log::warning('查不到用户城市位置 user_id = ' . $user->id . ' city = ' . $user->city);
                            return ['code' => 1, 'msg' => '查不到用户城市位置 user_id = ' . $user->id . ' city = ' . $user->city . '，'];
                        }
                    } else {
                        return ['code' => 1, 'msg' => '查不到用户城市位置 user_id = ' . $user->id . ' city = ' . $user->city . '，'];
                    }
                }
            } else {
                self::$static_city_gps[$city_pin_yin] = $city_gps;
            }
        }
        $city_gps['code'] = 0;
        return $city_gps;
    }

    /**
     * 查询其它城市是否在范围内
     * @param $city_pin_yin
     * @param $city_gps
     * @return array
     */
    public function getOtherCity($city_pin_yin, $city_gps)
    {
        if (isset(self::$static_other_city[$city_pin_yin])) {
            $other_city = self::$static_other_city[$city_pin_yin];
        } else {
            $other_city = json_decode(Redis::get('otherCity:' . $city_pin_yin));
            if (empty($other_city)) {
                $point = $this->returnSquarePoint($city_gps['east_longitude'], $city_gps['northern_latitude'], 300);
                $other_city = CityGps::where('northern_latitude', '>', $point['right_bottom']['lat'])->where('northern_latitude', '<', $point['left_top']['lat'])
                    ->where('east_longitude', '>', $point['left_top']['lng'])->where('east_longitude', '<', $point['right_bottom']['lng'])
                    ->pluck('prefecture_level_city')->toArray();
                if (!empty($other_city)) {
                    $other_city = array_unique($other_city);
                    Redis::set("otherCity:" . $city_pin_yin, json_encode(array_values($other_city)));
                    self::$static_other_city[$city_pin_yin] = $other_city;
                } else {
                    return ['code' => 1, 'msg' => '城市不在范围内，'];
                }
            } else {
                if (!is_array($other_city)) {
                    $other_city = json_decode($other_city, true);
                }
                self::$static_other_city[$city_pin_yin] = $other_city;
            }
        }
        $other_city['code'] = 0;
        return $other_city;
    }

    /**
     *计算某个经纬度的周围某段距离的正方形的四个点
     * @param $lng
     * @param $lat
     * @param float $distance
     * @return array 正方形的四个点的经纬度坐标
     */
    function returnSquarePoint($lng, $lat, $distance = 0.5)
    {
        $EARTH_RADIUS = 6371;//地球半径，平均半径为6371km
        $dlng = 2 * asin(sin($distance / (2 * $EARTH_RADIUS)) / cos(deg2rad($lat)));
        $dlng = rad2deg($dlng);
        $dlat = $distance / $EARTH_RADIUS;
        $dlat = rad2deg($dlat);
        return array(
            'left_top' => array('lat' => round($lat + $dlat, 2), 'lng' => round($lng - $dlng, 2)),
            'right_top' => array('lat' => round($lat + $dlat, 2), 'lng' => round($lng + $dlng, 2)),
            'left_bottom' => array('lat' => round($lat - $dlat, 2), 'lng' => round($lng - $dlng, 2)),
            'right_bottom' => array('lat' => round($lat - $dlat, 2), 'lng' => round($lng + $dlng, 2))
        );
    }

    /**
     * 计算两个坐标的距离
     * @param $lng1 , $lng2 经度
     * @param $lat1 , $lat2 纬度
     * @param int $unit 单位 1:米 2:千米
     * @param int $decimal 精度 保留小数位数
     */
    function getDistance($lng1, $lat1, $lng2, $lat2, $unit = 1, $decimal = 2)
    {
        $earthdata = 6371;//地球半径，平均半径为6371km
        // 将角度转为狐度
        $radLat1 = deg2rad($lat1); //deg2rad()函数将角度转换为弧度
        $radLat2 = deg2rad($lat2);
        $radLng1 = deg2rad($lng1);
        $radLng2 = deg2rad($lng2);
        $dlat = $radLat1 - $radLat2;
        $dlng = $radLng1 - $radLng2;
        $length = 2 * asin(sqrt(pow(sin($dlat / 2), 2) + cos($radLat1) * cos($radLat2) * pow(sin($dlng / 2), 2))) * $earthdata * 1000;

        if ($unit == 2) {
            $length /= 1000;
        }
        $length = round($length, $decimal);
        return $length;
    }

    /**
     * 年龄转成时间
     * @param $age
     * @param string $symbol
     * @return string
     */
    public function ageToBirthday($age, $symbol = '-')
    {
        $age = $age == 0 ? 25 : $age;
        $nowyear = date("Y", time());
        $year = $nowyear - $age;
        $monthArr = [];
        for ($i = 1; $i < 13; $i++) {
            $monthArr[] = $i < 10 ? '0' . $i : $i;
        }
        $dayArr = [];
        for ($i = 1; $i < 29; $i++) {
            $dayArr[] = $i < 10 ? '0' . $i : $i;
        }
        $month_key = array_rand($monthArr, 1);
        $month = $monthArr[$month_key];
        $date_tmp_stamp = strtotime($year . '-' . $month);
        $day = '';
        if ($month == '02' && date("t", $date_tmp_stamp) == '29') {
            $dayArr = array_merge($dayArr, ['29']);
            $day_key = array_rand($dayArr, 1);
            $day = $dayArr[$day_key];
        } else if ($month == '02' && date("t", $date_tmp_stamp) == '28') {
            $day_key = array_rand($dayArr, 1);
            $day = $dayArr[$day_key];
        } else if (in_array($month, ['01', '03', '05', '07', '08', '10', '12'])) {
            $dayArr = array_merge($dayArr, ['29', '30', '31']);
            $day_key = array_rand($dayArr, 1);
            $day = $dayArr[$day_key];
        } else {
            $dayArr = array_merge($dayArr, ['29', '30']);
            $day_key = array_rand($dayArr, 1);
            $day = $dayArr[$day_key];
        }
        return $year . $symbol . $month . $symbol . $day;
    }
}