package request

import (
	"errors"

	"gitea.ddegame.cn/open/servicebase/pkg/tools"

	"github.com/shopspring/decimal"
)

type BaseOrderIdRequest struct {
	BaseRequest
	OrderId            string
	OrderCountComplete string // 实际完成的订单量（局）
}

// 参数合法性检验
func (request *BaseOrderIdRequest) CheckParameter() (err error) {
	if len(request.OrderId) == 0 {
		err = errors.New("OrderId不能为空")
		return
	}
	return
}

type PayOrderIdRequest struct {
	BaseRequest
	OrderId     string
	BuyerUserId string
}

// 参数合法性检验
func (request *PayOrderIdRequest) CheckParameter() (err error) {
	if len(request.OrderId) == 0 {
		err = errors.New("OrderId不能为空")
		return
	}
	return
}

type SellerOrderIdRequest struct {
	BaseRequest
	OrderId      string
	SellerUserId string
}

// 参数合法性检验
func (request *SellerOrderIdRequest) CheckParameter() (err error) {
	if len(request.OrderId) == 0 {
		err = errors.New("OrderId不能为空")
		return
	}
	return
}

// 卖家提前完成订单
type BuyerEarlyFinishOrderRequest struct {
	BaseOrderIdRequest
	OrderCountComplete string // 实际完成得订单量
	OrderAmountPaid    string // 实际应支付的订单金额
}

// 参数合法性检验
func (request *BuyerEarlyFinishOrderRequest) CheckParameter() (err error) {
	if len(request.OrderId) == 0 {
		err = errors.New("OrderId不能为空")
		return
	}
	return
}

type FreeOfChargeOrderRequest struct {
	BaseRequest
	OrderId     string
	ChangeCount string // 完成单数
}

// 参数合法性检验
func (request *FreeOfChargeOrderRequest) CheckParameter() (err error) {
	if len(request.OrderId) == 0 {
		err = errors.New("OrderId不能为空")
		return
	}
	if len(request.ChangeCount) == 0 {
		err = errors.New("完成单数不能为空")
		return
	}
	var count decimal.Decimal
	if count, err = decimal.NewFromString(request.ChangeCount); err != nil {
		err = errors.New("完成单数不能为非数字")
		return
	}
	if !tools.IsHalfMultiple(count) {
		err = errors.New("完成单数必须为0.5的倍数")
		return
	}
	if count.LessThanOrEqual(decimal.NewFromInt(0)) {
		err = errors.New("完成单数不能小于等于零")
		return
	}
	return
}

type ReduceOrderRequest struct {
	BaseRequest
	OrderId     string
	ChangeCount string // 完成单数
}

// 参数合法性检验
func (request *ReduceOrderRequest) CheckParameter() (err error) {
	if len(request.OrderId) == 0 {
		err = errors.New("OrderId不能为空")
		return
	}
	if len(request.ChangeCount) == 0 {
		err = errors.New("减少单数不能为空")
		return
	}
	var count decimal.Decimal
	if count, err = decimal.NewFromString(request.ChangeCount); err != nil {
		err = errors.New("减少数不能为非数字")
		return
	}
	if !tools.IsHalfMultiple(count) {
		err = errors.New("减少单数必须为0.5的倍数")
		return
	}
	if count.LessThanOrEqual(decimal.NewFromInt(0)) {
		err = errors.New("减少单数不能小于等于零")
		return
	}
	return
}

// 卖家提前完成订单
type SellerFinishOrderRequest struct {
	BaseOrderIdRequest
	OrderCountComplete string // 实际完成的订单量（局）
}

// 参数合法性检验
func (request *SellerFinishOrderRequest) CheckParameter() (err error) {
	if len(request.OrderId) == 0 {
		err = errors.New("OrderId不能为空")
		return
	}
	if len(request.OrderCountComplete) == 0 {
		err = errors.New("OrderId不能为空")
		return
	}
	return
}