package coryCommon

import (
	"fmt"
	"github.com/golang/geo/s2"
	toolTurf "github.com/tiger1103/gfast/v3/api/v1/common/tool/turf"
	"github.com/tomchavakis/geojson/geometry"
	"github.com/tomchavakis/turf-go"
)

// DetailedMap shp文件数据
type DetailedMap struct {
	Positions []struct {
		Lng float64 `json:"lng"`
		Lat float64 `json:"lat"`
		Alt float64 `json:"alt"`
	} `json:"positions"`
	Width     string `json:"width"`
	Color     string `json:"color"`
	Alpha     string `json:"alpha"`
	Name      string `json:"name"`
	Property  string `json:"property"`
	TxtMemo   string `json:"TxtMemo"`
	ShapeLeng string `json:"Shape_Leng"`
	ShapeArea string `json:"Shape_Area"`
	Range     struct {
		MinX float64 `json:"min_x"`
		MinY float64 `json:"min_y"`
		MaxX float64 `json:"max_x"`
		MaxY float64 `json:"max_y"`
	} `json:"range"`
}

// RectangularFrameRange 是否在矩形框范围内，是否在打卡范围内
func RectangularFrameRange(dataInfo DetailedMap, locationLng float64, locationLat float64) (flag bool) {
	//1、组装数据 84坐标
	polygon := [][]float64{}
	for _, data := range dataInfo.Positions {
		polygon = append(polygon, []float64{data.Lng, data.Lat})
	}
	//3、判断位置
	distance := toolTurf.BooleanPointInPolygon([]float64{locationLng, locationLat}, polygon)
	if distance {
		fmt.Println("点在矩形框内")
		return true
	} else {
		fmt.Println("点在矩形框外")
		return false
	}
}

// FEIQI_RectangularFrameRange 是否在矩形框范围内，是否在打卡范围内   ！！！！！！！！！！！！！！！！！有问题
func FEIQI_RectangularFrameRange(dataInfo DetailedMap, locationLng float64, locationLat float64) (flag bool) {
	//1、组装数据
	var pl geometry.Polygon
	var ls []geometry.LineString
	var pt []geometry.Point
	for _, data := range dataInfo.Positions {
		wgs84 := LatLng{Latitude: data.Lat, Longitude: data.Lng}
		t1 := WGS84ToEPSG900913(wgs84)
		var p geometry.Point
		p.Lng = t1.Latitude
		p.Lat = t1.Longitude
		pt = append(pt, p)
	}
	var lsTwo geometry.LineString
	lsTwo.Coordinates = pt
	ls = append(ls, lsTwo)
	pl.Coordinates = append(pl.Coordinates, lsTwo)
	//2、当前人所在位置
	locationLng, locationLat = GCJ02toWGS84(locationLng, locationLat)
	wgs84 := LatLng{Latitude: locationLng, Longitude: locationLat}
	t1 := WGS84ToEPSG900913(wgs84)
	myPoint := geometry.Point{
		Lng: t1.Longitude,
		Lat: t1.Latitude,
	}
	//3、判断myPoint是否在pl框内
	distance, _ := turf.PointInPolygon(myPoint, pl)
	if distance {
		fmt.Println("点在矩形框内")
		return true
	} else {
		fmt.Println("点在矩形框外")
		return false
	}
}

type LatLng struct {
	Latitude  float64
	Longitude float64
}

// WGS84ToEPSG900913 将WGS84坐标转换为EPSG-900913坐标
func WGS84ToEPSG900913(wgs84 LatLng) LatLng {
	// 将WGS84坐标转换为s2.LatLng
	ll := s2.LatLngFromDegrees(wgs84.Latitude, wgs84.Longitude)

	// 创建s2.Point
	p := s2.PointFromLatLng(ll)

	// 计算EPSG-900913坐标
	//epsgX, epsgY := p.Normalize()
	normalize := p.Normalize()

	// 将坐标范围映射到EPSG-900913的范围
	epsgX := normalize.X * 20037508.34 / 180.0
	epsgY := normalize.Y * 20037508.34 / 180.0

	return LatLng{Latitude: epsgY, Longitude: epsgX}
}