<?php

namespace App\Service;

use App\Model\Device;
use App\Model\DeviceType;
use App\Model\ScreenDevice;
use App\Model\SystemL;

class SystemlService extends Service
{
    public static function getLastData($code = [], $min = -1){
        if(empty($code)) return [];

        $time = strtotime($min.' min',time());
        $time = $time * 1000;

        $result = SystemL::whereIn('device_no',$code)
            ->where('push_time','>=',$time)
            ->select('data_point_name','value','device_no')
            ->orderBy('id','desc')
            ->get()->toArray();

        $return = [];
        if(! empty($result)){
            foreach ($result as $value){
                if(isset($return[$value['device_no']])) continue;
                //只取每个设备最新的一条数据
                $return[$value['device_no']] = [
                    'data_point_name' => $value['data_point_name'],
                    'value' => $value['value']
                ];
            }
        }

        return $return;
    }

    //'gateway_id' => 键,'screen_id' => 值
    public static function getIsOnlineStatus($map = []){
        if(empty($map)) return [];

        //仓是否在线
        $result = $screen_id = $gateway = $tmp = [];
        foreach ($map as $value){
            $result[$value['screen_id']] = 0;
//            $gateway[] = $value['gateway_id'];
//            $tmp[$value['screen_id']] = $value['gateway_id'];
            $screen_id[] = $value['screen_id'];
        }
;
        //设备 和 仓的关系
        $return = ScreenDevice::from('screen_device as a')
            ->leftJoin('device as b','b.id','a.device_id')
            ->whereIn('a.screen_id',$screen_id)
            ->where('a.del_time',0)
            ->pluck('a.screen_id','b.code')
            ->toArray();
//        $device = Device::where('del_time',0)
//            ->whereIn('gateway_id',$gateway)
//            ->select('code','gateway_id')->get()->toArray();dump($tmp);die;
//        foreach ($device as $value){
//            foreach ($tmp as $k_screen_id => $v){
//                if($value['gateway_id'] == $v){
//                    $return[$value['code']] = $k_screen_id;
//                }
//            }
//        }

        //获取最新设备的数据
        $data = self::getLastData(array_keys($return));
        foreach ($data as $key => $value){
            if(isset($return[$key])){
                $result[$return[$key]] = 1;
            }
        }

        return $result;
    }

    public static function getGpsStatus($screen_id){
        if(empty($screen_id)) return [];

        //仓 载运2/闲置1/停运0
        $result = [];
        foreach ($screen_id as $value){
            $result[$value] = 0;
        }

        $screen = ScreenDevice::from('screen_device as a')
            ->leftJoin('device as b','b.id','a.device_id')
            ->leftJoin('screen as c','c.id','a.screen_id')
            ->where('b.device_type_id',DeviceType::type_four)
            ->whereIn('a.screen_id',$screen_id)
            ->select('b.code','c.coordinate','a.screen_id')
            ->get()->toArray();
        if(empty($screen)) return $result;
        $screen_map = array_column($screen,null,'code');

        //获取最新设备的数据
        $data = self::getLastData(array_column($screen,'code'));
        foreach ($data as $key => $value){
            if(isset($screen_map[$key])){
                $tmp = $screen_map[$key];
                $tmp_coordinate = $tmp['coordinate'];
                if(isset($result[$tmp['screen_id']]) && $tmp_coordinate){
                    //计算偏差值
                    try {
                        $meter = self::calculateDistance($tmp_coordinate,$value['value']);

                        if($meter > 200){
                            $result[$tmp['screen_id']] = 2;
                        }else{
                            $result[$tmp['screen_id']] = 1;
                        }
                    }catch (\Exception $e){
                        continue;
                    }
                }
            }
        }

        return $result;
    }

    public static function calculateDistance($coordinate1, $coordinate2) {
        $earthRadius = 6371000; // 地球半径，单位为米

        list($lat1,$lon1) = explode(',',$coordinate1);
        list($lat2,$lon2) = explode(',',$coordinate2);
        $lat1Rad = deg2rad($lat1);
        $lon1Rad = deg2rad($lon1);
        $lat2Rad = deg2rad($lat2);
        $lon2Rad = deg2rad($lon2);

        $deltaLat = $lat2Rad - $lat1Rad;
        $deltaLon = $lon2Rad - $lon1Rad;

        $a = sin($deltaLat / 2) * sin($deltaLat / 2) +
            cos($lat1Rad) * cos($lat2Rad) *
            sin($deltaLon / 2) * sin($deltaLon / 2);
        $c = 2 * atan2(sqrt($a), sqrt(1 - $a));

        $distance = $earthRadius * $c;

        return $distance;
    }

    public static function getExceptionStatus($screen_id){
        if(empty($screen_id)) return [];

        //仓 正常1/异常0
        $result = [];
        foreach ($screen_id as $value){
            $result[$value] = 0;
        }

        $screen = ScreenDevice::from('screen_device as a')
            ->leftJoin('device as b','b.id','a.device_id')
            ->whereIn('b.device_type_id',[DeviceType::type_two, DeviceType::type_three])
            ->whereIn('a.screen_id',$screen_id)
            ->select('b.code','a.screen_id')
            ->get()->toArray();
        if(empty($screen)) return $result;
        $screen_map = array_column($screen,null,'code');

        //获取最新设备的数据
        $data = self::getLastData(array_column($screen,'code'));
        foreach ($data as $key => $value){
            if(isset($screen_map[$key])){
                $tmp = $screen_map[$key];
                if(isset($result[$tmp['screen_id']]) && $value['value'] == 1){
                    $result[$tmp['screen_id']] = 1;
                }
            }
        }

        return $result;
    }

    public static function getIsOnlineStatusGateWay($gateway){
        if(empty($gateway)) return [];

        //网关是否在线
        $result = [];
        foreach ($gateway as $value){
            $result[$value] = 0;
        }

        $device = Device::where('del_time',0)
            ->whereIn('gateway_id',$gateway)
            ->select('code','gateway_id')
            ->get()->toArray();
        $gateway_connect_device = [];
        foreach ($device as $value){
            $gateway_connect_device[$value['gateway_id']][] = $value['code'];
        }

        //获取最新设备的数据
        $data = self::getLastData(array_column($device,'code'));
        foreach ($gateway_connect_device as $gateway => $value){
            if(! empty($result[$gateway])) continue;
            foreach ($value as $code){
                if(isset($data[$code])){
                    $result[$gateway] = 1;
                }
            }
        }

        return $result;
    }
}