package model

import (
	"time"

	"gorm.io/datatypes"
)

// MohongCategory 摸大红商品分类。
type MohongCategory struct {
	ID        uint64    `gorm:"primaryKey" json:"id"`
	Name      string    `gorm:"size:64;not null;uniqueIndex" json:"name"`
	Code      string    `gorm:"size:64;not null;default:''" json:"code"`
	SortOrder int       `gorm:"column:sort_order;not null;default:0" json:"sort_order"`
	Status    string    `gorm:"size:16;not null;default:'enabled'" json:"status"`
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`
}

func (MohongCategory) TableName() string {
	return "mohong_categories"
}

// MohongProductCategory 商品与分类多对多（同一商品可出现在大红/九格等）。
type MohongProductCategory struct {
	ProductID  uint64 `gorm:"column:product_id;primaryKey" json:"product_id"`
	CategoryID uint64 `gorm:"column:category_id;primaryKey;index" json:"category_id"`
}

func (MohongProductCategory) TableName() string {
	return "mohong_product_categories"
}

// MohongProduct 摸大红商品。
type MohongProduct struct {
	ID                uint64         `gorm:"primaryKey" json:"id"`
	CategoryID        *uint64        `gorm:"column:category_id;index" json:"category_id"` // 主分类（展示用）
	Title             string         `gorm:"size:128;not null" json:"title"`
	CoverURL          string         `gorm:"column:cover_url;size:512;not null;default:''" json:"cover_url"`
	ImageURLs         datatypes.JSON `gorm:"column:image_urls" json:"image_urls"`
	Description       string         `gorm:"type:text;not null" json:"description"`
	PriceCent         int64          `gorm:"column:price_cent;not null;default:0" json:"-"`
	OriginalPriceCent int64          `gorm:"column:original_price_cent;not null;default:0" json:"-"`
	Unit              string         `gorm:"size:32;not null;default:'份'" json:"unit"`
	Stock             int            `gorm:"not null;default:-1" json:"stock"`
	SortOrder         int            `gorm:"column:sort_order;not null;default:0" json:"sort_order"`
	Status            string         `gorm:"size:16;not null;default:'draft'" json:"status"`
	QrcodeImageURL    string         `gorm:"column:qrcode_image_url;size:512;not null;default:''" json:"qrcode_image_url"`
	CreatedBy         *uint64        `gorm:"column:created_by" json:"created_by"`
	CreatedAt         time.Time      `json:"created_at"`
	UpdatedAt         time.Time      `json:"updated_at"`
}

func (MohongProduct) TableName() string {
	return "mohong_products"
}

// MohongOrder 摸大红订单。
type MohongOrder struct {
	ID                uint64         `gorm:"primaryKey" json:"id"`
	OrderNo           string         `gorm:"size:64;not null;uniqueIndex" json:"order_no"`
	UserID            uint64         `gorm:"not null;index" json:"user_id"`
	ProductID         uint64         `gorm:"not null;index" json:"product_id"`
	Quantity          int            `gorm:"not null;default:1" json:"quantity"`
	UnitPriceCent     int64          `gorm:"column:unit_price_cent;not null;default:0" json:"-"`
	AmountCent        int64          `gorm:"column:amount_cent;not null;default:0" json:"-"`
	Status            string         `gorm:"size:32;not null;default:'pending_payment';index" json:"status"`
	ProductSnapshot   datatypes.JSON `gorm:"column:product_snapshot" json:"product_snapshot"`
	QrcodeURLSnapshot string         `gorm:"column:qrcode_url_snapshot;size:512;not null;default:''" json:"qrcode_url_snapshot"`
	CopyText          string         `gorm:"type:text;not null" json:"copy_text"`
	PaidAt            *time.Time     `json:"paid_at"`
	CompletedAt       *time.Time     `json:"completed_at"`
	CancelledAt       *time.Time     `json:"cancelled_at"`
	CancelReason      string         `gorm:"size:255;not null;default:''" json:"cancel_reason"`
	AdminRemark       string         `gorm:"size:255;not null;default:''" json:"admin_remark"`
	CreatedAt         time.Time      `json:"created_at"`
	UpdatedAt         time.Time      `json:"updated_at"`
}

func (MohongOrder) TableName() string {
	return "mohong_orders"
}

const (
	MohongCategoryStatusEnabled  = "enabled"
	MohongCategoryStatusDisabled = "disabled"

	MohongProductStatusDraft   = "draft"
	MohongProductStatusOnSale  = "on_sale"
	MohongProductStatusOffSale = "off_sale"

	MohongOrderStatusPendingPayment = "pending_payment"
	MohongOrderStatusPaid           = "paid"
	MohongOrderStatusCompleted      = "completed"
	MohongOrderStatusCancelled      = "cancelled"
	MohongOrderStatusRefunded       = "refunded"
)