chore: implement error interface with the ValidationError struct (#23)

Signed-off-by: Armando Ruocco <[email protected]>

pkg/operator/extensions.go

@@ -0,0 +1,28 @@
+package operator
+
+import (
+	"fmt"
+	"strings"
+)
+
+type ValidationErrors []ValidationError
+
+func (v ValidationErrors) Error() string {
+	messages := make([]string, len(v))
+
+	for idx := range v {
+		validationError := &v[idx]
+		messages[idx] = validationError.Error()
+	}
+
+	return strings.Join(messages, ";")
+}
+
+func (v *ValidationError) Error() string {
+	return fmt.Sprintf(
+		"encountered a validation error, message: %s, value: %s, pathComponents: %s",
+		v.Message,
+		v.Value,
+		v.PathComponents,
+	)
+}