feat: add user register

pkg/common/errors.go

@@ -3,31 +3,37 @@ package common
 type ErrorCode int
 
 const (
-	CodeSuccess         = 200
-	CodeParamError      = 400
-	CodeUnauthorized    = 401
-	CodeForbidden       = 403
-	CodeNotFound        = 404
-	CodeInvalidStatus   = 405
-	CodeDBError         = 500
-	CodeSystemError     = 501
-	CodeTaskNotComplete = 1001
-	CodeRecordRepeat    = 1002
-	CodeSmsCodeError    = 1003
+	CodeSuccess          = 200
+	CodeParamError       = 400
+	CodeUnauthorized     = 401
+	CodeForbidden        = 403
+	CodeNotFound         = 404
+	CodeInvalidStatus    = 405
+	CodeDBError          = 500
+	CodeSystemError      = 501
+	CodeTaskNotComplete  = 1001
+	CodeRecordRepeat     = 1002
+	CodeSmsCodeError     = 1003
+	CodeEmailExists      = 1004
+	CodeEmailNotFound    = 1005
+	CodePasswordMismatch = 1006
 )
 
 const (
-	CodeSuccessMsg         = "success"
-	CodeParamErrorMsg      = "param error"
-	CodeUnauthorizedMsg    = "unauthorized"
-	CodeForbiddenMsg       = "forbidden"
-	CodeNotFoundMsg        = "not found"
-	CodeInvalidStatusMsg   = "invalid status"
-	CodeDBErrorMsg         = "database error"
-	CodeSystemErrorMsg     = "system error"
-	CodeTaskNotCompleteMsg = "task not complete"
-	CodeRecordRepeatMsg    = "record repeat"
-	CodeSmsCodeErrorMsg    = "sms code error"
+	CodeSuccessMsg          = "success"
+	CodeParamErrorMsg       = "param error"
+	CodeUnauthorizedMsg     = "unauthorized"
+	CodeForbiddenMsg        = "forbidden"
+	CodeNotFoundMsg         = "not found"
+	CodeInvalidStatusMsg    = "invalid status"
+	CodeDBErrorMsg          = "database error"
+	CodeSystemErrorMsg      = "system error"
+	CodeTaskNotCompleteMsg  = "task not complete"
+	CodeRecordRepeatMsg     = "record repeat"
+	CodeSmsCodeErrorMsg     = "sms code error"
+	CodeEmailExistsMsg      = "email already registered"
+	CodeEmailNotFoundMsg    = "email not found"
+	CodePasswordMismatchMsg = "password mismatch"
 )
 
 type BusinessError struct {
@@ -47,3 +53,10 @@ func NewError(code ErrorCode, message string, err error) *BusinessError {
 		Err:     err,
 	}
 }
+
+// 预定义业务错误
+var (
+	ErrEmailExists      = NewError(CodeEmailExists, CodeEmailExistsMsg, nil)
+	ErrEmailNotFound    = NewError(CodeEmailNotFound, CodeEmailNotFoundMsg, nil)
+	ErrPasswordMismatch = NewError(CodePasswordMismatch, CodePasswordMismatchMsg, nil)
+)