// ==========================================================================
// GFast自动生成controller操作代码。
// 生成日期：2023-08-08 10:08:24
// 生成路径: internal/app/system/controller/qianqi_pingchang.go
// 生成人：gfast
// desc:平场数据
// company:云南奇讯科技有限公司
// ==========================================================================

package controller

import (
	"context"
	"encoding/json"
	"errors"
	"github.com/gogf/gf/v2/crypto/gmd5"
	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/net/ghttp"
	"github.com/tiger1103/gfast/v3/api/v1/common/globe"
	"github.com/tiger1103/gfast/v3/api/v1/common/shp"
	"github.com/tiger1103/gfast/v3/api/v1/common/tool"
	"github.com/tiger1103/gfast/v3/api/v1/system"
	"github.com/tiger1103/gfast/v3/internal/app/system/dao"
	"github.com/tomchavakis/turf-go/constants"
	"github.com/tomchavakis/turf-go/measurement"
	"math"
	"strings"
)

const MaxNeighborsLen = 8 //最大邻居个数
type qianqiPingchangController struct {
	BaseController
}

var QianqiPingchang = new(qianqiPingchangController)

func (c *qianqiPingchangController) PingchangImport(ctx context.Context, req *system.PingchangImportReq) (res *system.UsualRes, err error) {
	r := ghttp.RequestFromCtx(ctx)
	files := r.GetUploadFiles("file")
	names, err := files.Save(globe.SOURCE)
	if err != nil {
		return nil, err
	}
	//fmt.Println(names)
	prefix := strings.Split(names[0], ".")[0]

	shpfile := globe.SOURCE + "/" + prefix + ".shp"

	err, s := shp.ReadShp(shpfile)
	if err != nil {
		return nil, err
	}
	var pcs []system.PC
	//name := strings.Split(shpfile, ".")[0]
	//导入平场区域时，只处理线部分
	//marshal, err := json.Marshal(s.Polylines)
	//if err != nil {
	//	return nil, err
	//}

	for _, v := range s.Polylines {
		pc := system.PC{
			ProjectID: req.ProjectID,
			PCName:    v.Name,
			GridWidth: 3,
			SHP:       shpfile,
		}
		marshal, err := json.Marshal(v.Positions)
		if err != nil {
			continue
		}
		pc.Range = string(marshal)
		pc.PcID = gmd5.MustEncryptString(string(marshal))
		count, err := dao.QianqiPingchang.Ctx(ctx).Where(dao.QianqiPingchang.Columns().PcId, pc.PcID).Count()
		if err != nil {
			continue
		}
		if count == 0 {
			pcs = append(pcs, pc)
		}
	}
	if len(pcs) > 0 {
		dao.QianqiPingchang.Ctx(ctx).Insert(&pcs)
	}
	return
}

func (c *qianqiPingchangController) PingchangUpdate(ctx context.Context, req *system.PingchangUpdateReq) (res *system.UsualRes, err error) {
	var pc system.PC
	if len(req.Points) > 0 {
		marshal, err := json.Marshal(req.Points)
		if err != nil {
			return nil, err
		}
		pc.Points = string(marshal)
	}
	pc.GridWidth = req.GridWidth
	pc.PCName = req.PCName
	dao.QianqiPingchang.Ctx(ctx).Where("pc_id", req.PcID).Update(&gdb.Map{
		dao.QianqiPingchang.Columns().PcName:    req.PCName,
		dao.QianqiPingchang.Columns().GridWidth: req.GridWidth,
		dao.QianqiPingchang.Columns().Points:    pc.Points,
	})
	return
}

func (c *qianqiPingchangController) PingChangList(ctx context.Context, req *system.PingChangListReq) (res *system.PingChangListRes, err error) {
	var pcs []system.PC
	dao.QianqiPingchang.Ctx(ctx).Where("project_id", req.ProjectID).Offset((req.Page - 1) * req.PageSize).Limit(req.PageSize).Order("pc_name asc,created_at desc").Scan(&pcs)
	res = &system.PingChangListRes{}
	for _, v := range pcs {
		pc1 := system.PC1{
			ProjectID: v.ProjectID,
			PCName:    v.PCName,
			Progress:  v.Progress,
			GridWidth: v.GridWidth,
			PcID:      v.PcID,
			Cut:       v.Cut,
			Fill:      v.Fill,
			Total:     v.Total,
			Area:      v.Area,
			Shp:       v.SHP,
		}
		if len(v.Range) > 0 {
			err1 := json.Unmarshal([]byte(v.Range), &pc1.Range)
			if err1 != nil {
				continue
			}
		}
		pc1.Points = []system.Point{}
		if len(v.Points) > 0 {
			err2 := json.Unmarshal([]byte(v.Points), &pc1.Points)
			if err2 != nil {
				continue
			}
		}
		pc1.SmoothPoints = []system.Point{}
		if len(v.SmoothPoints) > 0 {
			err3 := json.Unmarshal([]byte(v.SmoothPoints), &pc1.SmoothPoints)
			if err3 != nil {
				continue
			}
		}
		res.Range = append(res.Range, pc1)
	}
	return
}

func (c *qianqiPingchangController) PingChangAdd(ctx context.Context, req *system.PingChangAddReq) (res *system.UsualRes, err error) {
	marshal, errs := json.Marshal(req.Range)
	if errs != nil {
		return nil, errs
	}
	dao.QianqiPingchang.Ctx(ctx).Insert(&system.PC{
		ProjectID: req.ProjectID,
		PcID:      tool.GetUuid(),
		PCName:    req.PCName,
		GridWidth: req.GridWidth,
		Range:     string(marshal),
	})
	return
}

func (c *qianqiPingchangController) PingchangDel(ctx context.Context, req *system.PingchangDelReq) (res *system.UsualRes, err error) {
	_, err = dao.QianqiPingchang.Ctx(ctx).Unscoped().Delete(dao.QianqiPingchang.Columns().PcId, req.PcID)
	return
}
func (c *qianqiPingchangController) PingchangCalculate(ctx context.Context, req *system.PingchangCalculateReq) (res *system.UsualRes, err error) {
	pc := &system.PC{}
	err = dao.QianqiPingchang.Ctx(ctx).Where(dao.QianqiPingchang.Columns().PcId, req.PcID).Scan(pc)
	if err != nil {
		return nil, err
	}
	if pc == nil {
		return nil, errors.New("资源不存在")
	}

	widthNeighbors := CalNeighbors(req.Locations, float64(pc.GridWidth*math.Sqrt(float64(2)))+2)
	/*	res = &SHPCreateRes{Points: widthNeighbors}
		filename := pcs.PCName + "_" + strconv.Itoa(int(req.GridWidth)) + "m精度"
		CreateSHP(widthNeighbors, filename)*/
	//CreateSHP(widthNeighbors, "test")
	var smoothPoints []system.Point
	for i, v := range widthNeighbors {
		var s_p system.Point
		s_p.Alt = v.Avrage
		s_p.Lng = v.Lng
		s_p.Lat = v.Lat
		smoothPoints = append(smoothPoints, s_p)
		widthNeighbors[i].Neighbors = []system.Point{}
	}
	marshal, err := json.Marshal(smoothPoints)
	if err != nil {
		return nil, err
	}
	locs, err := json.Marshal(req.Locations)
	if err != nil {
		return nil, err
	}
	/*	_, err = dao.QianqiPingchang.Ctx(ctx).Where(dao.QianqiPingchang.Columns().PcId, req.PcID).Update(&system.PC{
		SmoothPoints: string(marshal),
		Points:       string(locs),
	})*/
	_, err = dao.QianqiPingchang.Ctx(ctx).Where(dao.QianqiPingchang.Columns().PcId, req.PcID).Update(g.Map{
		"smooth_points": string(marshal),
		"points":        string(locs),
	})

	return
}

type Point struct {
	system.Point
	//WeightMap gmap.ListMap `json:"weight_map" dc:"权重表"`
	Neighbors []system.Point `json:"neighbors" dc:"相邻的点"`
	Avrage    float64        `json:"avrage" dc:"区域内的平均高度"`
	Total     float64        `json:"total" dc:"总高度"`
}

func CalNeighbors(locations []system.Point, dis float64) []*Point {
	var widthNeighbors []*Point
	for i, v := range locations {
		var point Point
		point.Lng = v.Lng
		point.Lat = v.Lat
		point.Alt = v.Alt
		for j, v2 := range locations {
			if i != j {
				//如果已经最多找到了8个临近点，就不再进行寻找，减少计算量
				if len(point.Neighbors) == MaxNeighborsLen {
					break
				}
				//排除自己,计算与其他点的权重
				distance, err := measurement.Distance(v.Lng, v.Lat, v2.Lng, v2.Lat, constants.UnitMeters)
				if err != nil {
					continue
				}
				//如果距离小于网格距离的2倍，代表是邻居
				if distance < dis {
					point.Total += v2.Alt
					point.Neighbors = append(point.Neighbors, v2)
				}
			}
		}
		widthNeighbors = append(widthNeighbors, &point)
	}
	for i, v := range widthNeighbors {
		num := len(v.Neighbors)
		if num > 0 {
			widthNeighbors[i].Avrage = v.Total / float64(num)
			//fmt.Println(i+1, "个点", "总高度", v.Total, "平均高度", widthNeighbors[i].Avrage, "邻居数量", num)
		}
	}
	return widthNeighbors
}

//
//// List 列表
//func (c *qianqiPingchangController) List(ctx context.Context, req *system.QianqiPingchangSearchReq) (res *system.QianqiPingchangSearchRes, err error) {
//	res, err = service.QianqiPingchang().List(ctx, req)
//	return
//}
//
//// Get 获取平场数据
//func (c *qianqiPingchangController) Get(ctx context.Context, req *system.QianqiPingchangGetReq) (res *system.QianqiPingchangGetRes, err error) {
//	res = new(system.QianqiPingchangGetRes)
//	res.QianqiPingchangInfoRes, err = service.QianqiPingchang().GetById(ctx, req.Id)
//	return
//}
//
//// Add 添加平场数据
//func (c *qianqiPingchangController) Add(ctx context.Context, req *system.QianqiPingchangAddReq) (res *system.QianqiPingchangAddRes, err error) {
//	err = service.QianqiPingchang().Add(ctx, req)
//	return
//}
//
//// Edit 修改平场数据
//func (c *qianqiPingchangController) Edit(ctx context.Context, req *system.QianqiPingchangEditReq) (res *system.QianqiPingchangEditRes, err error) {
//	err = service.QianqiPingchang().Edit(ctx, req)
//	return
//}
//
//// Delete 删除平场数据
//func (c *qianqiPingchangController) Delete(ctx context.Context, req *system.QianqiPingchangDeleteReq) (res *system.QianqiPingchangDeleteRes, err error) {
//	err = service.QianqiPingchang().Delete(ctx, req.Ids)
//	return
//}