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// Copyright 2024 The Forgejo Authors. All rights reserved.
// Copyright 2023 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package validation
import (
"fmt"
"reflect"
"strings"
"unicode/utf8"
"code.gitea.io/gitea/modules/timeutil"
)
// ErrNotValid represents an validation error
type ErrNotValid struct {
Message string
}
func (err ErrNotValid) Error() string {
return fmt.Sprintf("Validation Error: %v", err.Message)
}
// IsErrNotValid checks if an error is a ErrNotValid.
func IsErrNotValid(err error) bool {
_, ok := err.(ErrNotValid)
return ok
}
type Validateable interface {
Validate() []string
}
func IsValid(v Validateable) (bool, error) {
if err := v.Validate(); len(err) > 0 {
typeof := reflect.TypeOf(v)
errString := strings.Join(err, "\n")
return false, ErrNotValid{fmt.Sprint(typeof, ": ", errString)}
}
return true, nil
}
func ValidateNotEmpty(value any, name string) []string {
isValid := true
switch v := value.(type) {
case string:
if v == "" {
isValid = false
}
case timeutil.TimeStamp:
if v.IsZero() {
isValid = false
}
case int64:
if v == 0 {
isValid = false
}
default:
isValid = false
}
if isValid {
return []string{}
}
return []string{fmt.Sprintf("%v should not be empty", name)}
}
func ValidateMaxLen(value string, maxLen int, name string) []string {
if utf8.RuneCountInString(value) > maxLen {
return []string{fmt.Sprintf("Value %v was longer than %v", name, maxLen)}
}
return []string{}
}
func ValidateOneOf(value any, allowed []any, name string) []string {
for _, allowedElem := range allowed {
if value == allowedElem {
return []string{}
}
}
return []string{fmt.Sprintf("Value %v is not contained in allowed values %v", value, allowed)}
}
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