package dual_check

// 业务错误码
const (
	ErrCodeInvalidParam    = 4000
	ErrCodeSessionNotFound = 1001
	ErrCodeSessionExpired  = 1002
	ErrCodeDuplicateSubmit = 1003
	ErrCodeInvalidRole     = 1004
	ErrCodeSessionCreate   = 1005
	ErrCodeNicknameExists  = 1006 // 昵称已被其他人占用（WS 连接时发现）
	ErrCodeNotInSession    = 1007 // 该昵称未 join 会话就 submit
)

var errorMessages = map[int]string{
	ErrCodeInvalidParam:    "invalid parameter",
	ErrCodeSessionNotFound: "会话码不存在或已过期",
	ErrCodeSessionExpired:  "session has expired",
	ErrCodeDuplicateSubmit: "该昵称已提交过文本",
	ErrCodeInvalidRole:     "role must be 'initiator' or 'participant'",
	ErrCodeSessionCreate:   "failed to create session, please retry",
	ErrCodeNicknameExists:  "该昵称已在会话中，请换一个",
	ErrCodeNotInSession:    "该昵称未加入会话",
}

func ErrMessage(code int) string {
	if msg, ok := errorMessages[code]; ok {
		return msg
	}
	return "unknown error"
}