dual check v0.1

server/internal/tools/dual_check/errors.go

@@ -0,0 +1,31 @@
+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"
+}