Refactor codebase

internal/auth/empty/token.go

@@ -1,12 +1,26 @@
+// Package empty provides a no-operation token storage implementation.
+// This package is used when authentication tokens are not required or when
+// using API key-based authentication instead of OAuth tokens for any provider.
 package empty
 
+// EmptyStorage is a no-operation implementation of the TokenStorage interface.
+// It provides empty implementations for scenarios where token storage is not needed,
+// such as when using API keys instead of OAuth tokens for authentication.
 type EmptyStorage struct {
-	// Type indicates the type (gemini, chatgpt, claude) of token storage.
+	// Type indicates the authentication provider type, always "empty" for this implementation.
 	Type string `json:"type"`
 }
 
-// SaveTokenToFile serializes the token storage to a JSON file.
-func (ts *EmptyStorage) SaveTokenToFile(authFilePath string) error {
+// SaveTokenToFile is a no-operation implementation that always succeeds.
+// This method satisfies the TokenStorage interface but performs no actual file operations
+// since empty storage doesn't require persistent token data.
+//
+// Parameters:
+//   - _: The file path parameter is ignored in this implementation
+//
+// Returns:
+//   - error: Always returns nil (no error)
+func (ts *EmptyStorage) SaveTokenToFile(_ string) error {
 	ts.Type = "empty"
 	return nil
 }