package purchase

import (
	"github.com/shopspring/decimal"
	"srm/global"
	"srm/model/test"
)

type Purchase struct {
	global.GVA_MODEL
	PurchaseTypeId      int                 `json:"purchaseTypeId" form:"purchaseType" gorm:"type:int(11);not null;default 0;comment:采购类型id"` // 采购类型id
	PurchaseType        PurchaseType        `json:"purchaseType" gorm:"foreignKey:PurchaseTypeId"`
	OrderSource         string              `json:"orderSource" gorm:"type:varchar(255);not null;default '';comment:单据来源"`             // 单据来源
	SupplierId          int                 `json:"supplierId" form:"supplierId" gorm:"type:int(11);not null;default 0;comment:供应商id"` // 供应商id
	Supplier            test.Supplier       `json:"supplier" gorm:"foreignKey:SupplierId"`
	Number              string              `json:"number" form:"number" gorm:"unique;type:varchar(255);not null;default '';comment:采购编号"`                  // 采购编号
	Name                string              `json:"name" form:"name" gorm:"type:varchar(255);not null;default '';comment:采购名称"`                             // 采购名称
	Contact             string              `json:"contact" form:"contact" gorm:"type:varchar(255);not null;default '';comment:联系人"`                        // 联系人
	Phone               string              `json:"phone" form:"phone" gorm:"type:varchar(255);not null;default '';comment:联系人电话"`                          // 联系人电话
	SigningDate         string              `json:"signingDate" form:"signingDate" gorm:"type:varchar(255);not null;default '';comment:签约日期"`               // 签约日期
	DeliveryDate        string              `json:"deliveryDate" form:"deliveryDate" gorm:"type:varchar(255);not null;default '';comment:交付日期"`             //交付日期
	Remark              string              `json:"remark" form:"remark" gorm:"type:varchar(1000);not null;default '';comment:备注"`                          //备注
	Status              OrderStatus         `json:"status" form:"status" gorm:"type:tinyint(1);not null;default 0;comment:状态"`                              //状态
	HandledBy           string              `json:"handledBy" form:"handledBy" gorm:"type:varchar(255);not null;default '';comment:经办人"`                    //经办人
	Creator             string              `json:"creator" form:"creator" gorm:"type:varchar(255);not null;default '';comment:制单人"`                        //制单人
	Principal           string              `json:"principal" form:"principal" gorm:"type:varchar(255);not null;default '';comment:采购负责人"`                  //采购负责人
	OrderType           string              `json:"orderType" form:"orderType" gorm:"type:varchar(255);not null;default '';comment:单据类型"`                   //单据类型
	Warehouse           string              `json:"warehouse" form:"warehouse" gorm:"type:varchar(255);not null;default '';comment:收货仓库"`                   //收货仓库
	Quantity            decimal.Decimal     `json:"quantity" form:"quantity" gorm:"type:decimal(12,4);not null;comment:采购数量"`                               // 采购数量
	TotalPrice          decimal.Decimal     `json:"totalPrice" form:"totalPrice" gorm:"type:decimal(12,2);not null;default '';comment:价税合计"`                //价税合计
	WholeDiscountType   WholeDiscountType   `json:"wholeDiscountType" form:"wholeDiscountType" gorm:"type:tinyint(1);not null;default '';comment:整单折扣"`     //整单折扣类型
	WholeDiscount       decimal.Decimal     `json:"wholeDiscount" form:"wholeDiscount" gorm:"type:decimal(12,2);not null;default '';comment:整单折扣"`          //整单折扣值
	PriceAdjustmentType PriceAdjustmentType `json:"priceAdjustmentType" form:"priceAdjustmentType" gorm:"type:tinyint(1);not null;default '';comment:价格调整"` //价格调整类型
	PriceAdjustment     decimal.Decimal     `json:"priceAdjustment" form:"priceAdjustment" gorm:"type:decimal(12,2);not null;default '';comment:价格调整"`      //价格调整值
	RealTotalPrice      decimal.Decimal     `json:"realTotalPrice" form:"realTotalPrice" gorm:"type:decimal(12,2);not null;default '';comment:最终价格"`        //最终价格
	InvoiceAmount       decimal.Decimal     `json:"invoiceAmount" form:"invoiceAmount" gorm:"type:decimal(12,2);not null;default '';comment:已收票金额"`         //已收票金额
	UnInvoiceAmount     decimal.Decimal     `json:"unInvoiceAmount" form:"unInvoiceAmount" gorm:"type:decimal(12,2);not null;default '';comment:未收票金额"`     //未收票金额
	ShouldPayAmount     decimal.Decimal     `json:"shouldPayAmount" form:"shouldPayAmount" gorm:"type:decimal(12,2);not null;default '';comment:应付金额"`      //应付金额
	PaidAmount          decimal.Decimal     `json:"paidAmount" form:"paidAmount" gorm:"type:decimal(12,2);not null;default '';comment:已付金额"`                //已付金额
}

func (Purchase) TableName() string {
	return "srm_purchase"
}

type OrderStatus int

const (
	OrderStatusConfirmed OrderStatus = 1 //待确认
	OrderStatusReceived  OrderStatus = 2 //待入库
	OrderStatusStored    OrderStatus = 3 //已入库
	OrderStatusCompleted OrderStatus = 4 //已完成
	OrderStatusCanceled  OrderStatus = 5 //已取消
)

type WholeDiscountType int

const (
	WholeDiscountTypePercent  WholeDiscountType = 1 //百分比降价
	WholeDiscountTypeDiscount WholeDiscountType = 2 //直接降价
)

func (wdt WholeDiscountType) IsValid(totalPrice, value decimal.Decimal) bool {
	if wdt == 0 {
		return true
	}
	if wdt != WholeDiscountTypePercent && wdt != WholeDiscountTypeDiscount {
		return false
	}
	if wdt == WholeDiscountTypeDiscount && value.GreaterThan(totalPrice) {
		return false
	}
	if wdt == WholeDiscountTypePercent && totalPrice.Mul(value).Div(decimal.NewFromInt(100)).GreaterThan(totalPrice) {
		return false
	}
	return true
}

type PriceAdjustmentType int

const (
	PriceAdjustmentTypeAdd PriceAdjustmentType = 1 //增加
	PriceAdjustmentTypeSub PriceAdjustmentType = 2 //减少
)

func (pat PriceAdjustmentType) IsValid(totalPrice, value decimal.Decimal) bool {
	if pat == 0 {
		return true
	}
	if pat != PriceAdjustmentTypeAdd && pat != PriceAdjustmentTypeSub {
		return false
	}
	if pat == PriceAdjustmentTypeSub && value.GreaterThan(totalPrice) {
		return false
	}
	return true
}

func (slf Purchase) CalcRealTotalPrice() decimal.Decimal {
	totalPrice := slf.TotalPrice
	if slf.WholeDiscountType == WholeDiscountTypePercent {
		totalPrice = totalPrice.Mul(decimal.NewFromInt(1).Sub(slf.WholeDiscount.Div(decimal.NewFromInt(100))))
	} else if slf.WholeDiscountType == WholeDiscountTypeDiscount {
		totalPrice = totalPrice.Sub(slf.WholeDiscount)
	}

	if slf.PriceAdjustmentType == PriceAdjustmentTypeAdd {
		totalPrice = totalPrice.Add(slf.PriceAdjustment)
	} else if slf.PriceAdjustmentType == PriceAdjustmentTypeSub {
		totalPrice = totalPrice.Sub(slf.PriceAdjustment)
	}
	return totalPrice.RoundCeil(2)
}