cmd: merge ship types

pkg/error/generic.go

@@ -13,12 +13,14 @@ const (
 	ErrDeleteShipTypeExistingGroup    = 5000
 	ErrDeleteShipTypePlanetProduction = 5001
 	ErrDeleteSciencePlanetProduction  = 5002
+	ErrMergeShipTypeNotEqual          = 5003
 )
 
 const (
 	ErrInputUnknownRace int = 3000 + iota
 	ErrInputEntityTypeNameInvalid
 	ErrInputEntityTypeNameDuplicate
+	ErrInputEntityTypeNameEquality
 	ErrInputEntityNotExists
 	ErrInputEntityNotOwned
 	ErrInputPlanetNumber
@@ -47,6 +49,8 @@ func GenericErrorText(code int) string {
 		return "Name has invalid length or symbols"
 	case ErrInputEntityTypeNameDuplicate:
 		return "Name already exists"
+	case ErrInputEntityTypeNameEquality:
+		return "Names should differ"
 	case ErrInputEntityNotExists:
 		return "Entity does not exists"
 	case ErrInputEntityNotOwned:
@@ -77,6 +81,8 @@ func GenericErrorText(code int) string {
 		return "Science proportions sum should be equal 1"
 	case ErrInputProductionInvalid:
 		return "Invalid Production type"
+	case ErrMergeShipTypeNotEqual:
+		return "Source and target ship types are not the same"
 	default:
 		return fmt.Sprintf("Undescribed error with code %d", code)
 	}

pkg/error/input.go

@@ -12,6 +12,10 @@ func NewEntityTypeNameDuplicateError(arg ...any) error {
 	return newGenericError(ErrInputEntityTypeNameDuplicate, arg...)
 }
 
+func NewEntityTypeNameEqualityError(arg ...any) error {
+	return newGenericError(ErrInputEntityTypeNameEquality, arg...)
+}
+
 func NewEntityNotExistsError(arg ...any) error {
 	return newGenericError(ErrInputEntityNotExists, arg...)
 }
@@ -59,3 +63,7 @@ func NewScienceSumValuesError(arg ...any) error {
 func NewProductionInvalidError(arg ...any) error {
 	return newGenericError(ErrInputProductionInvalid, arg...)
 }
+
+func NewMergeShipTypeNotEqualError(arg ...any) error {
+	return newGenericError(ErrMergeShipTypeNotEqual, arg...)
+}