feat: user domain -- errors

pkg/errors/errors.go

@@ -0,0 +1,6 @@
+package errors
+
+var (
+	ErrPhoneInvalid      = NewAppError(400, "Invalid phone number", ErrorTypeValidation, nil)
+	ErrNationalIDInvalid = NewAppError(400, "Invalid national ID", ErrorTypeValidation, nil)
+)

pkg/errors/types.go

@@ -0,0 +1,51 @@
+package errors
+
+import (
+	"errors"
+)
+
+type ErrorType string
+
+const (
+	ErrorTypeValidation ErrorType = "VALIDATION_ERROR"
+
+	ErrorTypeAuth ErrorType = "AUTH_ERROR"
+)
+
+type AppError struct {
+	Code    int       `json:"code"`
+	Message string    `json:"message"`
+	Type    ErrorType `json:"type"`
+	Cause   error     `json:"_"`
+}
+
+func NewAppError(code int, msg string, typ ErrorType, cause error) *AppError {
+	return &AppError{
+		Code:    code,
+		Message: msg,
+		Type:    typ,
+		Cause:   cause,
+	}
+}
+
+func (e *AppError) Error() string {
+	return e.Message
+}
+
+func (e *AppError) Unwrap() error {
+	return e.Cause
+}
+func (e *AppError) Is(target error) bool {
+	if t, ok := target.(*AppError); ok {
+		return e.Type == t.Type
+	}
+	return errors.Is(e.Cause, target)
+}
+
+func (e *AppError) As(target interface{}) bool {
+	if t, ok := target.(**AppError); ok {
+		*t = e
+		return true
+	}
+	return errors.As(e.Cause, target)
+}

pkg/validate/national/validate.go

@@ -0,0 +1,45 @@
+package national
+
+import (
+	"backend/pkg/errors"
+	"strconv"
+	"strings"
+)
+
+func IsValid(value string) (bool, error) {
+	valueCount := len(value)
+	if valueCount < 8 {
+		return false, errors.ErrNationalIDInvalid
+	}
+
+	if valueCount >= 8 && valueCount < 10 {
+		value = strings.Repeat("0", 10-valueCount) + value
+	}
+
+	var valueSlices []uint8
+	for _, s := range value {
+		i, err := strconv.ParseInt(string(s), 10, 8)
+		if err != nil {
+			return false, errors.ErrNationalIDInvalid
+		}
+		valueSlices = append(valueSlices, uint8(i))
+	}
+
+	s := calculateNationalIDNumbers(&valueSlices)
+
+	s %= 11
+	l := valueSlices[len(value)-1]
+	if (s < 2 && s != int(l)) || (s >= 2 && int(l) != 11-s) {
+		return false, errors.ErrNationalIDInvalid
+	}
+
+	return true, nil
+}
+
+func calculateNationalIDNumbers(valueSlices *[]uint8) (sum int) {
+	var i uint8
+	for i = 10; i >= 2; i-- {
+		sum += int(i * (*valueSlices)[10-i])
+	}
+	return sum
+}

pkg/validate/phone/validate.go

@@ -0,0 +1,15 @@
+package phone
+
+import (
+	"backend/pkg/errors"
+	"regexp"
+)
+
+func IsValid(value string) (bool, error) {
+	re := regexp.MustCompile(`^(?:0|\+98|0098)(\d{10})$`)
+	result := re.FindStringSubmatch(value)
+	if len(result) > 0 {
+		return true, nil
+	}
+	return false, errors.ErrPhoneInvalid
+}