From 4aed95a3cdf6eb39e158cb2333d09b354afe3614 Mon Sep 17 00:00:00 2001
From: ailurux <ailuruxx@gmail.com>
Date: Thu, 2 May 2024 17:02:58 +1000
Subject: WIP: Lua filesystem starting point

---
 src/lua/include/file_iterator.hpp  | 42 ++++++++++++++++++++++++++++++++++++++
 src/lua/include/lua_filesystem.hpp | 17 +++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 src/lua/include/file_iterator.hpp
 create mode 100644 src/lua/include/lua_filesystem.hpp

(limited to 'src/lua/include')

diff --git a/src/lua/include/file_iterator.hpp b/src/lua/include/file_iterator.hpp
new file mode 100644
index 00000000..6fc58245
--- /dev/null
+++ b/src/lua/include/file_iterator.hpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 ailurux <ailuruxx@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#pragma once 
+
+#include <string>
+#include <optional>
+
+#include "ff.h"
+
+namespace database {
+
+// Note for when reading FILINFO, that we are in LFN mode:
+// http://elm-chan.org/fsw/ff/doc/sfileinfo.html
+struct FileEntry {
+    bool isHidden;
+    bool isDirectory;
+    bool isTrack;
+    std::string filepath;
+};
+
+class FileIterator {
+ public:
+  FileIterator(std::string filepath);
+
+  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_;
+
+  auto iterate(bool reverse = false) -> bool;
+};
+
+} // namespace database
\ No newline at end of file
diff --git a/src/lua/include/lua_filesystem.hpp b/src/lua/include/lua_filesystem.hpp
new file mode 100644
index 00000000..2a829405
--- /dev/null
+++ b/src/lua/include/lua_filesystem.hpp
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2023 ailurux <ailuruxx@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+#pragma once
+
+#include "lua.hpp"
+#include "file_iterator.hpp"
+
+namespace lua {
+
+auto check_file_iterator(lua_State*, int stack_pos) -> database::FileIterator*;
+
+auto RegisterFileSystemModule(lua_State*) -> void;
+
+}  // namespace lua
-- 
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