<?php

namespace app\common\model;

use think\Model;

/**
 * 模型
 */
class Eyemargin extends Model
{
    // 定义时间戳字段名
    protected $createTime = 'createtime';

    /**
     * 获取携带标签的列表
     */
    public static function getDistanceList($user_lng,$user_lat,$field,$where,$user_id) {
        $results = \app\common\model\Eyemargin::alias("a")
            ->field($field)
            ->join("hx_user u","a.user_id = u.id")
            ->where($where)
            ->order("a.weight desc,a.createtime desc")
            ->select();
        if($results) foreach($results as $k => $v) {
            // 计算距离
            $results[$k]['distance'] = self::getDistance($v['lng'],$v['lat'],$user_lng,$user_lat);
//            $results[$k]['distance_txt'] = $results[$k]['distance'] > 15 ? $v['city_name'].'·'.$v['district_name']:"距离:".$results[$k]['distance'].'km';
            $results[$k]['distance_txt'] = self::getDistanceTxt($v['lng'],$v['lat'],$user_lng,$user_lat,$v['city_name'],$v['district_name']);
            $results[$k]['right_info'] = self::getIsView($v['user_id'],$user_id);
            $v['cover'] || $results[$k]['cover'] = $_SERVER["REQUEST_SCHEME"]."://".$_SERVER["HTTP_HOST"].'/assets/img/video_cover.jpeg';
            $results[$k]['file_name'] = $v['eye_type'] == 1 ? self::getFileUniq($v['video']) : "";
        }
        $distance = array_column($results,'distance');
        array_multisort($distance,SORT_ASC,$results);
        // 距离筛选
        return $results;
    }

    /**
     * 获取视频唯一识别码
     */
    public static function getFileUniq($file) {
        if(!$file) return false;
        $file_arr = explode('/',$file);
        end($file_arr);
        $file_name = $file_arr[key($file_arr)];
        $file_name_arr = explode(".",$file_name);
        if(!isset($file_name_arr[0])) return false;
        return $file_name_arr[0];
    }
    /**
     * 计算两点地理坐标之间的距离描述
     */
    public static function getDistanceTxt($longitude1, $latitude1, $longitude2, $latitude2,$city_name,$district_name){
        $distance = self::getDistance($longitude1, $latitude1, $longitude2, $latitude2, 1, 0);
        if($distance >= 15000) {
            $txt = -1;
        } elseif($distance >= 1000) {
            $distance = $distance / 1000;
            $txt = '距离:'.$distance."km";
        } else {
            $txt = '距离:'.$distance."米";
        }
        $txt = $txt == -1 ? $city_name.'·'.$district_name:$txt;
        return $txt;
    }

    /**
     * 获取是否眼缘/关注量/邀请
     */
    public static function getIsView($fate_user_id,$user_id) {
        $res = [];
        // 获取当前用户被关注数量
        $res['like_count'] = \app\common\model\UserLike::where(["user_id"=>$fate_user_id])->count();
        // 获取是否已有眼缘
        $is_fate = \app\common\model\UserFate::where(["user_id"=>$user_id,"fate_user_id"=>$fate_user_id])->find();
        $res['is_fate'] = $is_fate?1:0;
        // 获取是否关注
        $is_like = \app\common\model\UserLike::where(["fans_id"=>$user_id,"user_id"=>$fate_user_id])->find();
        $res['is_like'] = $is_like?1:0;
        // 获取是否显示分享
        $res['is_share'] = config("site.invite")?1:0;
        return $res;
    }

    /**
     * 计算两点地理坐标之间的距离
     * @param Decimal $longitude1 起点经度
     * @param Decimal $latitude1 起点纬度
     * @param Decimal $longitude2 终点经度
     * @param Decimal $latitude2 终点纬度
     * @param Int   $unit    单位 1:米 2:公里
     * @param Int   $decimal  精度 保留小数位数
     * @return Decimal
     */
    public static function getDistance($longitude1, $latitude1, $longitude2, $latitude2, $unit=2, $decimal=1){

        if(!$longitude1 || !$latitude1 || !$longitude2 || !$latitude2) return 1000000;
        if($longitude1 <= 0 || $latitude1 <= 0 || $longitude2 <= 0 || $latitude2 <= 0) return 1000000;

        $EARTH_RADIUS = 6370.996; // 地球半径系数
        $PI = 3.1415926;

        $radLat1 = $latitude1 * $PI / 180.0;
        $radLat2 = $latitude2 * $PI / 180.0;

        $radLng1 = $longitude1 * $PI / 180.0;
        $radLng2 = $longitude2 * $PI /180.0;

        $a = $radLat1 - $radLat2;
        $b = $radLng1 - $radLng2;

        $distance = 2 * asin(sqrt(pow(sin($a/2),2) + cos($radLat1) * cos($radLat2) * pow(sin($b/2),2)));
        $distance = $distance * $EARTH_RADIUS * 1000;

        if($unit==2){
            $distance = $distance / 1000;
        }

        return round($distance, $decimal);

    }

    /**
     * 三数组合并
     */
    public static function arrayMerge($b,$c,$d) {

        $bcd = [];
        if($b && $c && $d){
            $eb = array_merge($b,$c);
            $bcd = array_merge($eb,$d);
        } elseif($b && $c) {
            $bcd = array_merge($b,$c);
        } elseif($b && $d) {
            $bcd = array_merge($b,$d);
        } elseif($c && $d) {
            $bcd = array_merge($c,$d);
        } else {
            if($b) {
                $bcd = $b;
            }
            if($c) {
                $bcd = $c;
            }
            if($d) {
                $bcd = $d;
            }
        }
        return self::second_array_unique_bykey($bcd,'id');
    }

    /**
     * 二维数组去重复
     * @param $arr
     * @param $key
     * @return mixed
     */
    public static function second_array_unique_bykey($arr, $key) {
        $tmp_arr = array();
        foreach ($arr as $k => $v) {
            if (in_array($v[$key], $tmp_arr)) { //搜索$v[$key]是否在$tmp_arr数组中存在，若存在返回true
                unset($arr[$k]); //销毁一个变量 如果$tmp_arr中已存在相同的值就删除该值
            } else {
                $tmp_arr[$k] = $v[$key]; //将不同的值放在该数组中保存
            }
        }
        return array_values($arr);
    }


}