merge: ragil-before-sso from development-before-sso

internal/utils/strings.go

@@ -1,6 +1,9 @@
 package utils
 
-import "strings"
+import (
+	"sort"
+	"strings"
+)
 
 // NormalizeTrim returns the input string without leading/trailing whitespace.
 func NormalizeTrim(value string) string {
@@ -11,3 +14,36 @@ func NormalizeTrim(value string) string {
 func NormalizeUpper(value string) string {
 	return strings.ToUpper(NormalizeTrim(value))
 }
+
+// NormalizeFlag trims whitespace, removes surrounding brackets/quotes and returns upper-case flag
+func NormalizeFlag(value string) string {
+	v := NormalizeTrim(value)
+	v = strings.Trim(v, "[]\"'")
+	return strings.ToUpper(v)
+}
+
+// ParseFlags parses a raw flags string like "[DOC, PAKAN]" or "DOC,PAKAN"
+// and returns a deduplicated, sorted slice of normalized flags (upper-case, trimmed).
+func ParseFlags(raw string) []string {
+	if raw == "" {
+		return nil
+	}
+	parts := strings.Split(raw, ",")
+	set := make(map[string]struct{}, len(parts))
+	for _, p := range parts {
+		f := NormalizeFlag(p)
+		if f == "" {
+			continue
+		}
+		set[f] = struct{}{}
+	}
+	if len(set) == 0 {
+		return nil
+	}
+	res := make([]string, 0, len(set))
+	for k := range set {
+		res = append(res, k)
+	}
+	sort.Strings(res)
+	return res
+}