package model

import (
	"time"
	"gorm.io/gorm"
)

// User 用户模型
type User struct {
	ID        uint           `gorm:"primaryKey" json:"id"`
	Username  string         `gorm:"uniqueIndex;not null;size:50" json:"username"`
	Email     string         `gorm:"uniqueIndex;not null;size:100" json:"email"`
	Password  string         `gorm:"not null;size:255" json:"-"`
	FirstName string         `gorm:"size:50" json:"first_name"`
	LastName  string         `gorm:"size:50" json:"last_name"`
	Avatar    string         `gorm:"size:255" json:"avatar"`
	Phone     string         `gorm:"size:20" json:"phone"`
	Address   string         `gorm:"size:255" json:"address"`
	IsActive  bool           `gorm:"default:true" json:"is_active"`
	Role      string         `gorm:"default:user;size:20" json:"role"`
	CreatedAt time.Time      `json:"created_at"`
	UpdatedAt time.Time      `json:"updated_at"`
	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
}

// TableName 指定表名
func (User) TableName() string {
	return "users"
}

// BeforeCreate GORM钩子 - 创建前
func (u *User) BeforeCreate(tx *gorm.DB) error {
	// 这里可以添加密码加密等逻辑
	return nil
}

// BeforeUpdate GORM钩子 - 更新前
func (u *User) BeforeUpdate(tx *gorm.DB) error {
	// 这里可以添加更新前的逻辑
	return nil
}

// CreateUserRequest 创建用户请求
type CreateUserRequest struct {
	Username  string `json:"username" binding:"required,min=3,max=50"`
	Email     string `json:"email" binding:"required,email"`
	Password  string `json:"password" binding:"required,min=6"`
	FirstName string `json:"first_name" binding:"max=50"`
	LastName  string `json:"last_name" binding:"max=50"`
	Phone     string `json:"phone" binding:"max=20"`
	Address   string `json:"address" binding:"max=255"`
}

// UpdateUserRequest 更新用户请求
type UpdateUserRequest struct {
	FirstName string `json:"first_name" binding:"max=50"`
	LastName  string `json:"last_name" binding:"max=50"`
	Avatar    string `json:"avatar" binding:"max=255"`
	Phone     string `json:"phone" binding:"max=20"`
	Address   string `json:"address" binding:"max=255"`
}

// LoginRequest 登录请求
type LoginRequest struct {
	Username string `json:"username" binding:"required"`
	Password string `json:"password" binding:"required"`
}

// UserResponse 用户响应
type UserResponse struct {
	ID        uint      `json:"id"`
	Username  string    `json:"username"`
	Email     string    `json:"email"`
	FirstName string    `json:"first_name"`
	LastName  string    `json:"last_name"`
	Avatar    string    `json:"avatar"`
	Phone     string    `json:"phone"`
	Address   string    `json:"address"`
	IsActive  bool      `json:"is_active"`
	Role      string    `json:"role"`
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`
}

// LoginResponse 登录响应
type LoginResponse struct {
	Token string       `json:"token"`
	User  UserResponse `json:"user"`
}

// ToResponse 转换为响应格式
func (u *User) ToResponse() UserResponse {
	return UserResponse{
		ID:        u.ID,
		Username:  u.Username,
		Email:     u.Email,
		FirstName: u.FirstName,
		LastName:  u.LastName,
		Avatar:    u.Avatar,
		Phone:     u.Phone,
		Address:   u.Address,
		IsActive:  u.IsActive,
		Role:      u.Role,
		CreatedAt: u.CreatedAt,
		UpdatedAt: u.UpdatedAt,
	}
}