Merge branch 'main' of codeberg.org:cool-tech-zone/tangara-fw

1 files changed, 45 insertions, 0 deletions

diff --git a/src/tangara/lua/file_iterator.hpp b/src/tangara/lua/file_iterator.hpp
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--- /dev/null
+++ b/src/tangara/lua/file_iterator.hpp
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2023 ailurux <ailuruxx@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once 
+
+#include <string>
+#include <optional>
+
+#include "ff.h"
+
+namespace lua {
+
+// Note for when reading FILINFO, that we are in LFN mode:
+// http://elm-chan.org/fsw/ff/doc/sfileinfo.html
+struct FileEntry {
+    int index;
+    bool isHidden;
+    bool isDirectory;
+    bool isTrack;
+    std::string filepath;
+};
+
+class FileIterator {
+ public:
+  FileIterator(std::string filepath);
+  ~FileIterator();
+
+  auto value() const -> const std::optional<FileEntry>&;
+  auto next() -> void;
+  auto prev() -> void;
+
+ private: 
+  FF_DIR dir_;
+  std::string original_path_;
+
+  std::optional<FileEntry> current_;
+  int offset_;
+
+  auto iterate(bool reverse = false) -> bool;
+};
+
+} // namespace lua
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