Add projects

backend/internal/auth/codex/filename.go

@@ -0,0 +1,51 @@
+package codex
+
+import (
+	"fmt"
+	"strings"
+	"unicode"
+)
+
+// CredentialFileName returns the filename used to persist Codex OAuth credentials.
+// The account hash is included when available to keep accounts with the same email
+// and plan distinct. The legacy email-based format remains the fallback.
+func CredentialFileName(email, planType, hashAccountID string, includeProviderPrefix bool) string {
+	email = strings.TrimSpace(email)
+	plan := normalizePlanTypeForFilename(planType)
+	hashAccountID = strings.TrimSpace(hashAccountID)
+
+	prefix := ""
+	if includeProviderPrefix {
+		prefix = "codex"
+	}
+
+	if hashAccountID != "" {
+		if plan == "" {
+			return fmt.Sprintf("%s-%s-%s.json", prefix, hashAccountID, email)
+		}
+		return fmt.Sprintf("%s-%s-%s-%s.json", prefix, hashAccountID, email, plan)
+	}
+	if plan == "" {
+		return fmt.Sprintf("%s-%s.json", prefix, email)
+	}
+	return fmt.Sprintf("%s-%s-%s.json", prefix, email, plan)
+}
+
+func normalizePlanTypeForFilename(planType string) string {
+	planType = strings.TrimSpace(planType)
+	if planType == "" {
+		return ""
+	}
+
+	parts := strings.FieldsFunc(planType, func(r rune) bool {
+		return !unicode.IsLetter(r) && !unicode.IsDigit(r)
+	})
+	if len(parts) == 0 {
+		return ""
+	}
+
+	for i, part := range parts {
+		parts[i] = strings.ToLower(strings.TrimSpace(part))
+	}
+	return strings.Join(parts, "-")
+}