package models

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

// User 用户模型
type User struct {
	ID        uint           `gorm:"primaryKey" json:"id"`
	Username  string         `gorm:"size:50;not null;unique" json:"username"`
	Email     string         `gorm:"size:100;not null;unique" json:"email"`
	Password  string         `gorm:"size:255;not null" json:"-"`
	Name      string         `gorm:"size:100" json:"name"`
	Avatar    string         `gorm:"size:500" json:"avatar"`
	Role      string         `gorm:"size:20;default:user" json:"role"`
	IsActive  bool           `gorm:"default:true" json:"is_active"`
	LastLogin *time.Time     `json:"last_login"`
	CreatedAt time.Time      `json:"created_at"`
	UpdatedAt time.Time      `json:"updated_at"`
	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
}

// TableName 返回用户表名
func (User) TableName() string {
	return "users"
}

// UserRole 用户角色常量
const (
	RoleUser   = "user"
	RoleEditor = "editor"
	RoleAdmin  = "admin"
)

// 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"`
	Name     string `json:"name" binding:"max=100"`
	Role     string `json:"role" binding:"omitempty,oneof=user editor admin"`
}

// UpdateUserRequest 更新用户请求
type UpdateUserRequest struct {
	Name     *string `json:"name" binding:"omitempty,max=100"`
	Avatar   *string `json:"avatar" binding:"omitempty,max=500"`
	IsActive *bool   `json:"is_active"`
}

// UpdatePasswordRequest 更新密码请求
type UpdatePasswordRequest struct {
	OldPassword string `json:"old_password" binding:"required"`
	NewPassword string `json:"new_password" binding:"required,min=6"`
}

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

// LoginResponse 登录响应
type LoginResponse struct {
	AccessToken  string `json:"access_token"`
	RefreshToken string `json:"refresh_token"`
	TokenType    string `json:"token_type"`
	ExpiresIn    int64  `json:"expires_in"`
	User         *User  `json:"user"`
}

// RefreshTokenRequest 刷新令牌请求
type RefreshTokenRequest struct {
	RefreshToken string `json:"refresh_token" binding:"required"`
}