package dao

import (
	"errors"
	"opencatd-open/team/model"
	"time"

	"gorm.io/gorm"
)

// 确保 UserDAO 实现了 UserRepository 接口
var _ UserRepository = (*UserDAO)(nil)

// UserRepository 定义用户数据访问操作的接口
type UserRepository interface {
	Create(user *model.User) error
	GetByID(id int64) (*model.User, error)
	GetByUsername(username string) (*model.User, error)
	Update(user *model.User) error
	Delete(id int64) error
	List(offset, limit int) ([]model.User, error)
	Enable(id int64) error
	Disable(id int64) error
	BatchEnable(ids []int64) error
	BatchDisable(ids []int64) error
	BatchDelete(ids []int64) error
}

type UserDAO struct {
	db *gorm.DB
}

func NewUserDAO(db *gorm.DB) *UserDAO {
	return &UserDAO{db: db}
}

// CreateUser 创建用户
func (dao *UserDAO) Create(user *model.User) error {
	if user == nil {
		return errors.New("user is nil")
	}
	return dao.db.Create(user).Error
}

// GetUserByID 根据ID获取用户
func (dao *UserDAO) GetByID(id int64) (*model.User, error) {
	var user model.User
	err := dao.db.First(&user, id).Error
	if err != nil {
		return nil, err
	}
	return &user, nil
}

// GetUserByUsername 根据用户名获取用户
func (dao *UserDAO) GetByUsername(username string) (*model.User, error) {
	var user model.User
	err := dao.db.Where("user_name = ?", username).First(&user).Error
	if err != nil {
		return nil, err
	}
	return &user, nil
}

// UpdateUser 更新用户信息
func (dao *UserDAO) Update(user *model.User) error {
	if user == nil {
		return errors.New("user is nil")
	}
	user.UpdatedAt = time.Now()
	return dao.db.Save(user).Error
}

// DeleteUser 删除用户
func (dao *UserDAO) Delete(id int64) error {
	return dao.db.Delete(&model.User{}, id).Error
	// return dao.db.Model(&model.User{}).Where("id = ?", id).Update("status", 2).Error
}

// ListUsers 获取用户列表
func (dao *UserDAO) List(offset, limit int) ([]model.User, error) {
	var users []model.User
	err := dao.db.Offset(offset).Limit(limit).Find(&users).Error
	if err != nil {
		return nil, err
	}
	return users, nil
}

// EnableUser 启用User
func (dao *UserDAO) Enable(id int64) error {
	return dao.db.Model(&model.User{}).Where("id = ?", id).Update("status", 0).Error
}

// DisableUser 禁用User
func (dao *UserDAO) Disable(id int64) error {
	return dao.db.Model(&model.User{}).Where("id = ?", id).Update("status", 1).Error
}

// BatchEnableUsers 批量启用User
func (dao *UserDAO) BatchEnable(ids []int64) error {
	if len(ids) == 0 {
		return errors.New("ids is empty")
	}
	return dao.db.Model(&model.User{}).Where("id IN ?", ids).Update("status", 0).Error
}

// BatchDisableUsers 批量禁用User
func (dao *UserDAO) BatchDisable(ids []int64) error {
	if len(ids) == 0 {
		return errors.New("ids is empty")
	}
	return dao.db.Model(&model.User{}).Where("id IN ?", ids).Update("status", 1).Error
}

// BatchDeleteUser 批量删除用户
func (dao *UserDAO) BatchDelete(ids []int64) error {
	if len(ids) == 0 {
		return errors.New("ids is empty")
	}
	return dao.db.Where("id IN ?", ids).Delete(&model.User{}).Error
	// return dao.db.Model(&model.User{}).Where("id IN ?", ids).Update("status", 2).Error
}