From 1f22b009e0ecbf341e4096fdfea51efed4d2fbe9 Mon Sep 17 00:00:00 2001
From: ayala-orca <93713792+ayala-orca@users.noreply.github.com>
Date: Thu, 21 Nov 2024 13:51:17 +0200
Subject: [PATCH] Create flag.go

---
 flag.go | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 flag.go

diff --git a/flag.go b/flag.go
new file mode 100644
index 000000000..5aadb7f1a
--- /dev/null
+++ b/flag.go
@@ -0,0 +1,30 @@
+package validator
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	"golang.org/x/exp/slices"
+
+	"github.com/orcasecurity/shiftleft-cli/lib/utils"
+)
+
+type FlagDependencyValidator[T any] struct {
+}
+
+func (v FlagDependencyValidator[T]) Validate(cmdOptions T, dependentField string, dependencyField string, allowedValues []string) error {
+	cmd := reflect.ValueOf(cmdOptions)
+	dependentFieldValue := reflect.Indirect(cmd).FieldByName(dependentField)
+	dependencyFieldValue := reflect.Indirect(cmd).FieldByName(dependencyField)
+	if slices.Contains(allowedValues, "") && dependencyFieldValue.IsZero() {
+		return nil
+	}
+	allowedValues = utils.RemoveFromSlice(allowedValues, "")
+	if !dependentFieldValue.IsZero() && !slices.Contains(allowedValues, dependencyFieldValue.String()) {
+		allowedValues := strings.Join(allowedValues, ",")
+		return fmt.Errorf("input error - '%s' option can be used only with %s=%s", dependentField, dependencyField, allowedValues)
+	}
+
+	return nil
+}