package errcode

type Error struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
}

func (e *Error) Error() string {
	return e.Message
}

func NewError(code int, message string) *Error {
	return &Error{
		Code:    code,
		Message: message,
	}
}

var (
	// 通用错误
	ErrBadRequest          = NewError(10001, "Bad Request")
	ErrUnauthorized        = NewError(10002, "Unauthorized")
	ErrForbidden           = NewError(10003, "Forbidden")
	ErrNotFound            = NewError(10004, "Not Found")
	ErrInternalServerError = NewError(10005, "Internal Server Error")

	// 用户相关错误
	ErrInvalidUsername   = NewError(20001, "Invalid Username")
	ErrInvalidPassword   = NewError(20002, "Invalid Password")
	ErrUserAlreadyExists = NewError(20003, "User Already Exists")
	ErrUserNotFound      = NewError(20004, "User Not Found")
	ErrInvalidToken      = NewError(20005, "Invalid Token")
	ErrUsernameExists    = NewError(20006, "Username Already Exists")
	ErrEmailExists       = NewError(20007, "Email Already Exists")

	// 帖子相关错误
	ErrPostNotFound   = NewError(30001, "Post Not Found")
	ErrInvalidTitle   = NewError(30002, "Invalid Title")
	ErrInvalidContent = NewError(30003, "Invalid Content")

	// 其他错误
	ErrDatabaseError = NewError(40001, "Database Error")
)