<?php
// +---
namespace app\admin\controller;
use  think\Db;

use app\admin\logic\MpLogic;
use yx\admin\builderClass;

class Mp extends AdminBase
{
    
    public function index(){
        $where = [
            ['lng','<>',''],
             ['lat','<>',''],
            ['onwork','=',1]    
        ];
        $u = Db::name('staff')->field('name,id,lng,lat,lnglat,mobile')->where($where)->select();
        // var_dump($u);
          $this->assign('u', json_encode($u));
        return $this->fetch();
    }
    
    
    public function map_user(){
        $input = input();
        if(empty($input['lng'])){
            return json(['code'=>0,'msg'=>'lng empty']);
        }
        if(empty($input['lat'])){
            return json(['code'=>0,'msg'=>'lat empty']);
        }
        $where = [
            ['lng','<>',''],
             ['lat','<>',''],
            ['onwork','=',1]    
        ];
        $list = Db::name('staff')->field('name,id,lng,lat,lnglat,mobile')->where($where)->select();
        
         // 函数：将数组转换为 LatLng 对象数组
        function convertToLatLngArray($coordArray) {
             $latLngArray = [];
            for ($i = 0; $i < count($coordArray); $i += 2) {
                $lat = floatval($coordArray[$i]);
                $lng = floatval($coordArray[$i + 1]);
                $latLngArray[] = [$lng,$lat];
            }
            return $latLngArray;
        }
        
        $u = [];
         foreach($list as $item=>$k){ 
                //获取用户的范围
                if( !$list[$item]['lnglat']){
                     unset($list[$item]);
                     continue;
                }
                $points = convertToLatLngArray(explode(',',$list[$item]['lnglat']));
            // //   var_dump($points);
              
                
                if(!$this->is_ptin_poly($input['lng'],$input['lat'],$points)){
                    unset($list[$item]);
                     continue;
                }
                $u[] = $k;
         }
         
         $this->_success('获取数据成功',$u);
    }
    
    //是否再范围内
    public function is_ptin_poly($aLon, $aLat, $pointList = array())
    {
        $iSum = 0;
        $iCount = count($pointList);
        if ($iCount < 3) {
            return false;
        }
        foreach ($pointList as $key => $row) {
            $pLon1 = $row[0];
            $pLat1 = $row[1];
            if ($key === $iCount - 1) {
                $pLon2 = $pointList[0][0];
                $pLat2 = $pointList[0][1];
            } else {
                $pLon2 = $pointList[$key + 1][0];
                $pLat2 = $pointList[$key + 1][1];
            }
            if ((($aLat >= $pLat1) && ($aLat < $pLat2)) || (($aLat >= $pLat2) && ($aLat < $pLat1))) {
                if (abs($pLat1 - $pLat2) > 0) {
                    $pLon = $pLon1 - (($pLon1 - $pLon2) * ($pLat1 - $aLat)) / ($pLat1 - $pLat2);
                    if ($pLon < $aLon) {
                        $iSum += 1;
                    }
                }
            }
        }
        if ($iSum % 2 != 0) {
            return true;
        } else {
            return false;
        }
    }
    
    

}