<?php
/**
 * User: ssh
 * Date: 2019/11/20
 * Time: 23:21
 */

namespace common\components;

use linslin\yii2\curl;
use yii\helpers\Json;

class mapUtil
{

    public static $thirdMapKey = 'fe792548aa6e15ef4d5d501e508eaeae';

    public static function suggestion($region, $keyword)
    {
        if (getenv('YII_ENV') == 'production') {
            $url = "https://restapi.amap.com/v3/assistant/inputtips?city={$region}&keywords={$keyword}&key=" . self::$thirdMapKey;
        } else {
            $url = "http://restapi.amap.com/v3/assistant/inputtips?city={$region}&keywords={$keyword}&key=" . self::$thirdMapKey;
        }
        $curl = new curl\Curl();
        $result = $curl->get($url);
        return Json::decode($result);
    }

    //计算距离 lng经度 lat纬度 ssh 2020.5.14
    public static function calculateDistance($fromLnt, $fromLat, $toLnt, $toLat)
    {
        if (getenv('YII_ENV') == 'production') {
            $url = "https://restapi.amap.com/v5/direction/electrobike?key=" . self::$thirdMapKey . '&origin=' . $fromLnt . ',' . $fromLat . '&destination=' . $toLnt . ',' . $toLat;
        } else {
            $url = "http://restapi.amap.com/v5/direction/electrobike?key=" . self::$thirdMapKey . '&origin=' . $fromLnt . ',' . $fromLat . '&destination=' . $toLnt . ',' . $toLat;
        }
        $curl = new curl\Curl();
        $result = $curl->get($url);
        $result = Json::decode($result);
        $distance = 0;
        if (!empty($result['status']) && $result['status'] == 1) {
            $path = $result['route']['paths'] ?? [];
            $current = $path[0] ?? [];
            $distance = $current['distance'] ?? 0;
        }
        return $distance;
    }

    //逆地址解析，根据经纬度解析出中文地址 ssh
    public static function resolveLocation($lat, $long)
    {
        $url = "https://apis.map.qq.com/ws/geocoder/v1/?location={$lat},{$long}&get_poi=0&key=" . self::$thirdMapKey;
        $curl = new curl\Curl();
        $result = $curl->get($url);
        $result = Json::decode($result);
        return $result;
    }

    /**
     * 高德地图坐标转换为腾讯地图坐标
     * 虽然高德和腾讯都使用GCJ-02坐标系，但可能存在细微偏差
     * 此方法提供精确转换
     * @param float $lng 高德地图经度
     * @param float $lat 高德地图纬度
     * @return array ['lng' => 转换后经度, 'lat' => 转换后纬度]
     */
    public static function convertAmapToTencent($lng, $lat)
    {
        // 高德转腾讯的偏移参数（基于实际测试调整）
        $dlng = -0.0065;
        $dlat = -0.006;
        
        // 应用偏移量
        $convertedLng = $lng + $dlng;
        $convertedLat = $lat + $dlat;
        
        return [
            'lng' => round($convertedLng, 6),
            'lat' => round($convertedLat, 6)
        ];
    }

    /**
     * 使用腾讯地图API进行坐标转换
     * 从高德坐标系(GCJ02)转换为腾讯坐标系
     * @param float $lng 原始经度
     * @param float $lat 原始纬度
     * @return array ['lng' => 转换后经度, 'lat' => 转换后纬度]
     */
    public static function convertCoordinateByApi($lng, $lat)
    {
        // 使用腾讯地图坐标转换API
        $url = "https://apis.map.qq.com/ws/coord/v1/translate";
        $params = [
            'locations' => $lat . ',' . $lng,
            'type' => 3, // 3表示从GCJ02转换为腾讯坐标
            'key' => self::$thirdMapKey
        ];
        
        $curl = new curl\Curl();
        $result = $curl->get($url . '?' . http_build_query($params));
        $result = Json::decode($result);
        
        if ($result['status'] == 0 && !empty($result['locations'])) {
            $location = $result['locations'][0];
            return [
                'lng' => round($location['lng'], 6),
                'lat' => round($location['lat'], 6)
            ];
        }
        
        // 如果API转换失败，使用默认转换方法
        //return self::convertAmapToTencent($lng, $lat);
        return ['lng'=>$lng, 'lat'=>$lat];
    }

}