package api

import (
	"3dshow/db/model"
	"3dshow/db/repo"
	"errors"
	"fmt"
	"time"

	"github.com/gin-gonic/gin"
	"go.mongodb.org/mongo-driver/bson/primitive"
)

// 产品管理
func Order(r *GinRouter) {
	r.POSTJWT("/order/createBatch", OrderAddBatch)
	r.GETJWT("/order/list", OrderList)
	r.POSTJWT("/order/update", OrderUpdate)
	r.GETJWT("/order/detail/:id", OrderDetail)
	r.POSTJWT("/order/delete/:id", OrderDelete)
	r.GETJWT("/order/count", OrderCount)
}

// 批量新增订单
func OrderAddBatch(c *gin.Context, apictx *ApiSession) (interface{}, error) {
	var orders []*model.OrderAddReq
	err := c.ShouldBindJSON(&orders)
	if err != nil {
		fmt.Println(err)
		return nil, errors.New("参数错误！")
	}
	ctx := apictx.CreateRepoCtx()
	_userId := apictx.User.ID
	userId, _ := primitive.ObjectIDFromHex(_userId)

	if len(orders) < 1 {
		return nil, errors.New("购物车为空")
	}

	for _, v := range orders {
		order := &model.Order{}
		order.UserId = userId
		order.SupplyId = v.Supply.Id
		order.Address = v.Address
		// order.Products
		// 组装商品和设置默认状态
		if len(v.Products) > 0 {
			for _, p := range v.Products {
				order.Products = append(order.Products, &model.OrderProduct{
					Id:        p.ProductId,
					SupplyId:  p.SupplyId,
					Name:      p.Name,
					Size:      p.Size,
					Color:     p.Color,
					Unit:      p.Unit,
					Cover:     p.Cover,
					ExpressNo: "",
					Status:    -1,
				})
				// 加入购物车后 删除购物车对应商品
				repo.RepoDeleteDoc(ctx, repo.CollectionShopCart, p.Id.Hex())

			}
		}
		order.DeliveryMethod = v.DeliveryMethod
		order.Remark = v.Remark
		order.Status = -1
		order.CreateTime = time.Now()
		repo.RepoAddDoc(ctx, repo.CollectionOrder, order)

	}

	return true, nil

}

// 订单列表
func OrderList(c *gin.Context, apictx *ApiSession) (interface{}, error) {
	// customer
	// supplier
	page, size, query := UtilQueryPageSize(c)
	_userId := apictx.User.ID
	userId, _ := primitive.ObjectIDFromHex(_userId)

	// if apictx.User.Role == "customer"{
	query["userId"] = userId
	// }
	result, err := repo.RepoPageSearch(apictx.CreateRepoCtx(), &repo.PageSearchOptions{
		CollectName: repo.CollectionOrder,
		Page:        page,
		Size:        size,
		Query:       query,
		// Project: []string{},
		Sort: repo.Map{"createTime": -1},
	})

	if len(result.List) > 0 {
		for _, v := range result.List {
			supplyId := v["supplyId"].(primitive.ObjectID)
			supply := model.Supply{}
			repo.RepoSeachDoc(apictx.CreateRepoCtx(), &repo.DocSearchOptions{
				CollectName: repo.CollectionSupply,
				Query:       repo.Map{"_id": supplyId},
			}, &supply)
			v["supplyName"] = supply.Name
		}
	}

	return result, err
}

// 个人页面数量展示
func OrderCount(_ *gin.Context, apictx *ApiSession) (interface{}, error) {
	_userId := apictx.User.ID
	userId, err := primitive.ObjectIDFromHex(_userId)
	if err != nil {
		return nil, errors.New("非法用户")
	}
	statusArray := []int{-1, 1, 2, 3}
	resMap := make(map[int]int64)
	// var ret []int64
	ctx := apictx.CreateRepoCtx()
	for _, v := range statusArray {
		query := repo.Map{"userId": userId, "status": v}
		res, _ := repo.RepoCountDoc(ctx, repo.CollectionOrder, query)
		// ret = append(ret, res)
		resMap[v] = res
	}
	return resMap, nil
}

// 更新订单 发货
func OrderUpdate(c *gin.Context, apictx *ApiSession) (interface{}, error) {
	var form model.Order
	err := c.ShouldBindJSON(&form)
	if err != nil {
		return nil, errors.New("参数错误")
	}
	if form.Id.Hex() == "" {
		return nil, errors.New("更新的产品id不能为空")
	}
	form.UpdateTime = time.Now()

	result, err := repo.RepoUpdateSetDoc(apictx.CreateRepoCtx(), repo.CollectionOrder, form.Id.Hex(), &form)
	if err != nil {
		return nil, err
	}

	// 更新订单状态
	if result.ModifiedCount > 0 {
		// 查询订单
		curOder := model.Order{}
		found, _ := repo.RepoSeachDoc(apictx.CreateRepoCtx(), &repo.DocSearchOptions{
			CollectName: repo.CollectionOrder,
			Query:       repo.Map{"_id": form.Id},
			Project:     []string{"products"},
		}, &curOder)

		if found {
			if len(curOder.Products) > 0 {
				statusMap := make(map[int]struct{})
				for _, v := range curOder.Products {
					statusMap[v.Status] = struct{}{}
				}
				// {"-1",1,2}
				// {-1,1}
				// {-1,2}
				// {1,2}
				// {-1}
				// {1}
				// {3}
				status := curOder.Status
				if len(statusMap) == 1 {
					if _, ok := statusMap[-1]; ok {
						status = -1
					}
					if _, ok := statusMap[1]; ok {
						status = 1
					}
					if _, ok := statusMap[2]; ok {
						status = 2
					}
				}
				if len(statusMap) == 2 {
					if _, ok := statusMap[-1]; ok {
						status = -1
					} else if _, ok := statusMap[1]; ok {
						status = 1
					}
				}
				if len(statusMap) == 3 {
					status = -1
				}
				var statusOrder model.Order
				statusOrder.Status = status
				repo.RepoUpdateSetDoc(apictx.CreateRepoCtx(), repo.CollectionOrder, form.Id.Hex(), &statusOrder)

			}
		}

	}
	return result, err

}

// 订单信息
func OrderDetail(c *gin.Context, apictx *ApiSession) (interface{}, error) {
	orderId := c.Param("id")
	id, err := primitive.ObjectIDFromHex(orderId)
	if err != nil {
		return nil, errors.New("非法id")
	}
	var order model.Order
	option := &repo.DocSearchOptions{
		CollectName: repo.CollectionOrder,
		Query:       repo.Map{"_id": id},
	}

	found, err := repo.RepoSeachDoc(apictx.CreateRepoCtx(), option, &order)
	if !found || err != nil {
		return nil, errors.New("数据未找到")
	}

	return order, nil
}

// 删除订单
func OrderDelete(c *gin.Context, apictx *ApiSession) (interface{}, error) {
	orderId := c.Param("id")
	_, err := primitive.ObjectIDFromHex(orderId)
	if err != nil {
		return nil, errors.New("非法id")
	}

	return repo.RepoDeleteDoc(apictx.CreateRepoCtx(), repo.CollectionOrder, orderId)
}