package logic

import (
	"errors"
	"fusenapi/constants"
	"fusenapi/model/gmodel"
	"fusenapi/utils/auth"
	"fusenapi/utils/basic"
	"fusenapi/utils/format"
	"math"

	"context"

	"fusenapi/server/home-user-auth/internal/svc"
	"fusenapi/server/home-user-auth/internal/types"

	"github.com/zeromicro/go-zero/core/logx"
	"gorm.io/gorm"
)

type UserOrderListLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewUserOrderListLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UserOrderListLogic {
	return &UserOrderListLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *UserOrderListLogic) UserOrderList(req *types.UserOrderListReq, userinfo *auth.UserInfo) (resp *basic.Response) {
	// 返回值必须调用Set重新返回, resp可以空指针调用 resp.SetStatus(basic.CodeOK, data)
	// userinfo 传入值时, 一定不为null

	orderDetailModel := gmodel.NewFsOrderDetailModel(l.svcCtx.MysqlConn)
	orderModel := gmodel.NewFsOrderModel(l.svcCtx.MysqlConn)
	rowBuilder := orderModel.RowSelectBuilder(nil)
	if userinfo == nil || userinfo.UserId == 0 {
		return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "order not found")
	}

	// 查询条件
	var page = req.Page
	var pageSize = req.PageSize
	var listRes []*gmodel.FsOrderRel
	rowBuilder = rowBuilder.Where("user_id =?", userinfo.UserId).Where("status =?", req.Status)

	// 查询总数
	total, err := orderModel.FindCount(l.ctx, rowBuilder, nil)
	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "order not found")
		}
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeServiceErr, "failed to get order info")
	}

	// 查询数据
	if total > 0 {
		rowBuilder = rowBuilder.Preload("FsOrderDetails", func(dbPreload *gorm.DB) *gorm.DB {
			return dbPreload.Table(orderDetailModel.TableName()).Preload("FsOrderDetailTemplateInfo").Preload("FsProductInfo")
		})
		listRes, err = orderModel.FindPageListByPage(l.ctx, rowBuilder, &page, &pageSize, nil, "")
	}

	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return resp.SetStatusWithMessage(basic.CodeDbRecordNotFoundErr, "order not found")
		}
		logx.Error(err)
		return resp.SetStatusWithMessage(basic.CodeServiceErr, "failed to get order info")
	}
	listResLen := len(listRes)

	var respList []types.Items
	if listResLen > 0 {
		// 数据处理
		for _, item := range listRes {
			var pbData types.Items
			pbData.ID = item.Id
			pbData.Sn = *item.Sn
			pbData.UserID = *item.UserId
			pbData.TotalAmount = *item.TotalAmount
			pbData.Ctime = format.TimeIntToFormat(*item.Ctime)
			pbData.Status = *item.Status
			pbData.DeliveryMethod = *item.DeliveryMethod
			pbData.TsTime = format.TimeToFormat(*item.TsTime)
			pbData.IsPayCompleted = *item.IsPayCompleted
			pbData.DeliverSn = *item.DeliverSn

			var pcsBox int64
			var pcs int64
			var productList []*types.Product
			if len(item.FsOrderDetails) > 0 {
				for _, fsOrderDetailItem := range item.FsOrderDetails {
					fsOrderDetailBuyNum := *fsOrderDetailItem.FsOrderDetail.BuyNum
					fsOrderDetailEachBoxNum := *fsOrderDetailItem.FsOrderDetailTemplateInfo.EachBoxNum
					pcs = pcs + fsOrderDetailBuyNum
					pcsBoxNum := fsOrderDetailBuyNum / fsOrderDetailEachBoxNum
					var csBoxNumF int64
					if (fsOrderDetailBuyNum % fsOrderDetailEachBoxNum) > 0 {
						csBoxNumF = 1
					}
					pcsBox = pcsBox + pcsBoxNum + csBoxNumF

					var product types.Product
					product.Cover = *fsOrderDetailItem.Cover
					product.Fitting = *fsOrderDetailItem.OptionalTitle
					product.OptionPrice = *fsOrderDetailItem.OptionPrice
					product.OrderDetailTemplateId = *fsOrderDetailItem.OrderDetailTemplateId
					product.OrderId = *fsOrderDetailItem.OrderId
					product.Pcs = fsOrderDetailBuyNum
					product.PcsBox = pcsBox
					product.Price = *fsOrderDetailItem.FsOrderDetail.Amount
					product.ProductId = *fsOrderDetailItem.OptionPrice
					//product.Size = *fsOrderDetailItem.FsProductInfo.s
					product.Title = *fsOrderDetailItem.FsProductInfo.Title

					productList = append(productList, &product)
				}
				pbData.ProductList = productList
			}

			pbData.PcsBox = pcsBox
			pbData.Pcs = pcs
			pbData.SurplusAt = *item.Ctime + constants.CANCLE_ORDER_EXPIRE
			pbData.LogisticsStatus = 1
			pbData.Deposit = *item.TotalAmount / 2
			pbData.Remaining = pbData.Deposit
			respList = append(respList, pbData)
		}

	}

	return resp.SetStatusWithMessage(basic.CodeOK, "success", types.UserOrderListRsp{
		Items: respList,
		Meta: types.Meta{
			TotalCount:  total,
			PageCount:   int64(math.Ceil(float64(total) / float64(pageSize))),
			CurrentPage: int(page),
			PerPage:     int(pageSize),
		},
	})
}