package model

import (
	"time"
)

// User 用户表
type User struct {
	ID        int32     `gorm:"primaryKey;autoIncrement" json:"id"`
	Openid    string    `gorm:"uniqueIndex;size:64;not null" json:"openid"` // 微信OpenID
	Nickname  string    `gorm:"size:128;default:''" json:"nickname"`
	Avatar    string    `gorm:"size:512;default:''" json:"avatar"`
	Balance   float64   `gorm:"type:decimal(10,2);default:0.00" json:"balance"` // 余额
	CreatedAt time.Time `gorm:"autoCreateTime" json:"created_at"`
	UpdatedAt time.Time `gorm:"autoUpdateTime" json:"updated_at"`
	Orders    []Order   `gorm:"foreignKey:UserID" json:"orders,omitempty"`
}

func (User) TableName() string {
	return "user"
}

// Admin 管理员表
type Admin struct {
	ID           int32     `gorm:"primaryKey;autoIncrement" json:"id"`
	Username     string    `gorm:"uniqueIndex;size:64;not null" json:"username"`
	PasswordHash string    `gorm:"size:256;not null" json:"-"`
	Nickname     string    `gorm:"size:128;default:''" json:"nickname"`
	Role         int8      `gorm:"default:1" json:"role"` // 1:普通管理员 2:超级管理员
	CreatedAt    time.Time `gorm:"autoCreateTime" json:"created_at"`
}

func (Admin) TableName() string {
	return "admin"
}

// Printer 打印机表
type Printer struct {
	ID            int32      `gorm:"primaryKey;autoIncrement" json:"id"`
	Name          string     `gorm:"uniqueIndex;size:128;not null" json:"name"`   // 系统打印机名
	DisplayName   string     `gorm:"size:128;not null" json:"display_name"`       // 显示名称
	APIKey        string     `gorm:"uniqueIndex;size:64;not null" json:"api_key"` // 客户端认证Key
	IsActive      bool       `gorm:"default:true" json:"is_active"`
	Status        int8       `gorm:"default:0" json:"status"` // 0:空闲 1:打印中 2:离线
	LastHeartbeat *time.Time `json:"last_heartbeat"`
	CreatedAt     time.Time  `gorm:"autoCreateTime" json:"created_at"`
	PrintJobs     []PrintJob `gorm:"foreignKey:PrinterID" json:"print_jobs,omitempty"`
}

func (Printer) TableName() string {
	return "printer"
}

// Order 订单表
type Order struct {
	ID          int32       `gorm:"primaryKey;autoIncrement" json:"id"`
	OrderNo     string      `gorm:"uniqueIndex;size:32;not null" json:"order_no"` // 订单号
	UserID      int32       `gorm:"not null;index" json:"user_id"`
	Status      int8        `gorm:"default:0" json:"status"` // 0:待支付 1:已支付 2:打印中 3:已完成 4:已取消
	TotalAmount float64     `gorm:"type:decimal(10,2);not null" json:"total_amount"`
	Remark      string      `gorm:"size:512;default:''" json:"remark"`
	CreatedAt   time.Time   `gorm:"autoCreateTime" json:"created_at"`
	PaidAt      *time.Time  `json:"paid_at"`
	User        *User       `gorm:"foreignKey:UserID" json:"user,omitempty"`
	Items       []OrderItem `gorm:"foreignKey:OrderID" json:"items,omitempty"`
	Payment     *Payment    `gorm:"foreignKey:OrderNo;references:OrderNo" json:"payment,omitempty"`
}

func (Order) TableName() string {
	return "order"
}

// OrderItem 订单明细表
type OrderItem struct {
	ID        int32      `gorm:"primaryKey;autoIncrement" json:"id"`
	OrderID   int32      `gorm:"not null;index" json:"order_id"`
	FileID    int32      `gorm:"not null" json:"file_id"`
	PrinterID *int32     `json:"printer_id"`
	Copies    int        `gorm:"default:1" json:"copies"`
	Color     bool       `gorm:"default:false" json:"color"`
	Duplex    bool       `gorm:"default:false" json:"duplex"`
	PageRange string     `gorm:"size:64;default:'all'" json:"page_range"`
	Price     float64    `gorm:"type:decimal(10,2);not null" json:"price"`
	Order     *Order     `gorm:"foreignKey:OrderID" json:"order,omitempty"`
	File      *File      `gorm:"foreignKey:FileID" json:"file,omitempty"`
	Printer   *Printer   `gorm:"foreignKey:PrinterID" json:"printer,omitempty"`
	PrintJobs []PrintJob `gorm:"foreignKey:OrderItemID" json:"print_jobs,omitempty"`
}

func (OrderItem) TableName() string {
	return "order_item"
}

// File 文件表
type File struct {
	ID           int32     `gorm:"primaryKey;autoIncrement" json:"id"`
	FileName     string    `gorm:"size:256;not null" json:"file_name"`
	FilePath     string    `gorm:"size:512;not null" json:"file_path"`
	FileType     string    `gorm:"size:32;not null" json:"file_type"`     // pdf/doc/docx/xls/xlsx/ppt/pptx/txt/jpg/png/zip
	FileSize     int64     `gorm:"not null" json:"file_size"`             // 字节
	UploaderType string    `gorm:"size:16;not null" json:"uploader_type"` // user/admin/system
	UploaderID   int32     `gorm:"not null" json:"uploader_id"`
	CreatedAt    time.Time `gorm:"autoCreateTime" json:"created_at"`
}

func (File) TableName() string {
	return "file"
}

// LibraryCategory 文库分类表
type LibraryCategory struct {
	ID        int32         `gorm:"primaryKey;autoIncrement" json:"id"`
	Name      string        `gorm:"size:128;not null" json:"name"`
	Icon      string        `gorm:"size:128;default:''" json:"icon"`
	SortOrder int           `gorm:"default:0" json:"sort_order"`
	CreatedAt time.Time     `gorm:"autoCreateTime" json:"created_at"`
	Files     []LibraryFile `gorm:"foreignKey:CategoryID" json:"files,omitempty"`
}

func (LibraryCategory) TableName() string {
	return "library_category"
}

// LibraryFile 文库文件表
type LibraryFile struct {
	ID            int32            `gorm:"primaryKey;autoIncrement" json:"id"`
	CategoryID    int32            `gorm:"not null;index" json:"category_id"`
	FileID        int32            `gorm:"not null" json:"file_id"`
	Title         string           `gorm:"size:256;not null" json:"title"`
	Description   string           `gorm:"size:512;default:''" json:"description"`
	PageCount     int              `gorm:"default:0" json:"page_count"`
	DownloadCount int              `gorm:"default:0" json:"download_count"`
	CreatedAt     time.Time        `gorm:"autoCreateTime" json:"created_at"`
	Category      *LibraryCategory `gorm:"foreignKey:CategoryID" json:"category,omitempty"`
	File          *File            `gorm:"foreignKey:FileID" json:"file,omitempty"`
}

func (LibraryFile) TableName() string {
	return "library_file"
}

// PrintJob 打印任务表
type PrintJob struct {
	ID          int32      `gorm:"primaryKey;autoIncrement" json:"id"`
	JobNo       string     `gorm:"uniqueIndex;size:32;not null" json:"job_no"`
	PrinterID   int32      `gorm:"not null;index" json:"printer_id"`
	OrderItemID int32      `gorm:"not null;index" json:"order_item_id"`
	Status      string     `gorm:"size:16;default:'pending'" json:"status"` // pending/printing/completed/failed/cancelled
	Progress    int        `gorm:"default:0" json:"progress"`
	ErrorMsg    string     `gorm:"size:512;default:''" json:"error_msg"`
	StartedAt   *time.Time `json:"started_at"`
	CompletedAt *time.Time `json:"completed_at"`
	Printer     *Printer   `gorm:"foreignKey:PrinterID" json:"printer,omitempty"`
	OrderItem   *OrderItem `gorm:"foreignKey:OrderItemID" json:"order_item,omitempty"`
}

func (PrintJob) TableName() string {
	return "print_job"
}

// PriceList 价目表
type PriceList struct {
	ID           int32     `gorm:"primaryKey;autoIncrement" json:"id"`
	Name         string    `gorm:"size:128;not null" json:"name"`            // 项目名称
	Type         string    `gorm:"size:32;not null" json:"type"`             // 纸张类型: A4/A3/照片纸
	Price        float64   `gorm:"type:decimal(10,2);not null" json:"price"` // 单价
	Unit         string    `gorm:"size:16;not null" json:"unit"`             // 单位: 页/张/份
	ColorEnabled bool      `gorm:"default:true" json:"color_enabled"`        // 是否支持彩色
	IsActive     bool      `gorm:"default:true" json:"is_active"`
	SortOrder    int       `gorm:"default:0" json:"sort_order"`
	CreatedAt    time.Time `gorm:"autoCreateTime" json:"created_at"`
}

func (PriceList) TableName() string {
	return "price_list"
}

// Payment 支付记录表
type Payment struct {
	ID            int32      `gorm:"primaryKey;autoIncrement" json:"id"`
	OrderNo       string     `gorm:"uniqueIndex;size:32;not null" json:"order_no"`
	PayType       string     `gorm:"size:16;default:'wechat'" json:"pay_type"` // wechat/balance
	PayStatus     int8       `gorm:"default:0" json:"pay_status"`              // 0:待支付 1:支付中 2:成功 3:失败
	TransactionID string     `gorm:"size:64;default:''" json:"transaction_id"`
	PaidAt        *time.Time `json:"paid_at"`
	CreatedAt     time.Time  `gorm:"autoCreateTime" json:"created_at"`
}

func (Payment) TableName() string {
	return "payment"
}

// OrderStatus 订单状态常量
const (
	OrderStatusPending   = 0 // 待支付
	OrderStatusPaid      = 1 // 已支付
	OrderStatusPrinting  = 2 // 打印中
	OrderStatusCompleted = 3 // 已完成
	OrderStatusCancelled = 4 // 已取消
)

// PayStatus 支付状态常量
const (
	PayStatusPending = 0 // 待支付
	PayStatusPaying  = 1 // 支付中
	PayStatusSuccess = 2 // 成功
	PayStatusFailed  = 3 // 失败
)

// PrinterStatus 打印机状态常量
const (
	PrinterStatusIdle     = 0 // 空闲
	PrinterStatusPrinting = 1 // 打印中
	PrinterStatusOffline  = 2 // 离线
)

// PrintJobStatus 打印任务状态常量
const (
	PrintJobStatusPending   = "pending"
	PrintJobStatusPrinting  = "printing"
	PrintJobStatusCompleted = "completed"
	PrintJobStatusFailed    = "failed"
	PrintJobStatusCancelled = "cancelled"
)