package service

import (
	"errors"
	"pure/dto"
	"pure/global"
	"pure/model"
	"pure/model/request"
	"pure/utils"
	"time"
)

func GetBillData(userId string, info *request.GetBillDataParams) (dto.BillData, error) {
	var (
		err    error
		result dto.BillData
	)
	now := time.Now()
	switch info.Uint {
	case "1": //累计
		var statistic model.DtStatisticOrder
		statistic, err = getStatisticsOrderInfluence(userId, "", nil)
		if err != nil {
			return result, err
		}
		result.Income = statistic.SettleReward
		result.OrderMoney = statistic.OrderMoney
		result.OrderNum = statistic.OrderNum
		result.CancelOrderNum = statistic.OrderCancelNum
		result.CancelOrderMoney = statistic.OrderCancelMoney
		_, result.RewardUnfinished = getMissionClaimRewardUnfinished(userId)

		result.FlowIncome, result.FlowExpend, err = getBillFlowData(userId, &request.SearchBillParams{Uint: "1"})
	case "2":
		var (
			timeArea  = make([]string, 2)
			statistic model.DtStatisticOrder
		)
		timeArea[0] = now.AddDate(0, 0, -1).Format(utils.DateFormat)
		timeArea[1] = now.Format(utils.DateFormat)
		statistic, err = getStatisticsOrderInfluence(userId, "", timeArea)
		if err != nil {
			return result, err
		}
		result.Income = statistic.SettleReward
		result.OrderMoney = statistic.OrderMoney
		result.OrderNum = statistic.OrderNum
		result.CancelOrderNum = statistic.OrderCancelNum
		result.CancelOrderMoney = statistic.OrderCancelMoney

		result.FlowIncome, result.FlowExpend, err = getBillFlowData(userId, &request.SearchBillParams{Uint: "2"})
	case "3":
		var (
			timeArea  = make([]string, 2)
			statistic model.DtStatisticOrder
		)
		timeArea[0] = now.AddDate(0, 0, -29).Format(utils.DateFormat)
		timeArea[1] = now.AddDate(0, 0, 1).Format(utils.DateFormat)
		statistic, err = getStatisticsOrderInfluence(userId, "", timeArea)
		if err != nil {
			return result, err
		}
		result.Income = statistic.SettleReward
		result.OrderMoney = statistic.OrderMoney
		result.OrderNum = statistic.OrderNum
		result.CancelOrderNum = statistic.OrderCancelNum
		result.CancelOrderMoney = statistic.OrderCancelMoney
		result.FlowIncome, result.FlowExpend, err = getBillFlowData(userId, &request.SearchBillParams{Uint: "3"})
	default:
		return dto.BillData{}, errors.New("uint取值有误")
	}
	return result, err
}

func getBillData(userId string, info *request.SearchBillParams) (float64, error) {
	var (
		err    error
		result float64
	)
	db := global.MG_DB.Model(&model.Bill{}).Where("user_id = ?", userId)
	now := time.Now()
	switch info.Uint {
	case "2": // 昨天
		db = db.Where("created_at >= ? AND created_at < ?", now.AddDate(0, 0, -1).Format(utils.DateFormat), now.Format(utils.DateFormat))
	case "3": // 30天
		db = db.Where("created_at >= ? AND created_at < ?", now.AddDate(0, 0, -29).Format(utils.DateFormat), now.AddDate(0, 0, 1).Format(utils.DateFormat))
	}
	if info.Status != "" {
		db = db.Where("`status` = ?", info.Status)
	}
	err = db.Select("SUM(price) as price").Scan(&result).Error
	if err != nil {
		return 0, err
	}
	return result, nil
}

func getBillFlowData(userId string, info *request.SearchBillParams) (income float64, expend float64, err error) {
	var list []model.BillFlowData
	db := global.MG_DB.Model(&model.Bill{}).Where("user_id = ?", userId)
	now := time.Now()
	switch info.Uint {
	case "2": // 昨天
		db = db.Where("created_at >= ? AND created_at < ?", now.AddDate(0, 0, -1).Format(utils.DateFormat), now.Format(utils.DateFormat))
	case "3": // 30天
		db = db.Where("created_at >= ? AND created_at < ?", now.AddDate(0, 0, -29).Format(utils.DateFormat), now.AddDate(0, 0, 1).Format(utils.DateFormat))
	}
	if info.Status != "" {
		db = db.Where("`status` = ?", info.Status)
	}
	err = db.Select("`status`,SUM(price) as price").Group("`status`").Find(&list).Error
	if err != nil {
		return 0, 0, err
	}
	for _, data := range list {
		if data.Status == 1 {
			expend = data.Price
		} else {
			income = data.Price
		}
	}
	return
}

func GetBillList(userId string, info *request.SearchBillParams) ([]model.Bill, error) {
	var (
		err    error
		result []model.Bill
	)
	limit := info.PageSize
	offset := info.PageSize * (info.Page - 1)
	db := global.MG_DB.Model(&model.Bill{}).Where("user_id = ?", userId)
	now := time.Now()
	switch info.Uint {
	case "2": // 昨天
		db = db.Where("created_at >= ? AND created_at < ?", now.AddDate(0, 0, -1).Format(utils.DateFormat), now.Format(utils.DateFormat))
	case "3": // 30天
		db = db.Where("created_at >= ? AND created_at < ?", now.AddDate(0, 0, -29).Format(utils.DateFormat), now.AddDate(0, 0, 1).Format(utils.DateFormat))
	}
	if info.Status != "" {
		db = db.Where("`status` = ?", info.Status)
	}
	err = db.Order("id DESC").Offset(offset).Limit(limit).Find(&result).Error
	if err != nil {
		return nil, err
	}
	return result, nil
}

func getBillView(orderId string) (model.BillView, error) {
	var (
		err    error
		result model.BillView
	)
	err = global.MG_DB.Model(&model.Bill{}).Where("order_id = ?", orderId).Select("id,order_id,transaction_id").First(&result).Error
	return result, err
}