#pragma once
#include <cstdint>
#include <filesystem>
#include <optional>

class IOFile {
	FILE* handle = nullptr;
	static inline std::filesystem::path appData = "";  // Directory for holding app data. AppData on Windows

  public:
	IOFile();
	IOFile(FILE* handle);
	IOFile(const std::filesystem::path& path, const char* permissions = "rb");

	bool isOpen();

	bool open(const std::filesystem::path& path, const char* permissions = "rb");

	bool open(const char* filename, const char* permissions = "rb");

	void close();

	std::pair<bool, std::size_t> read(void* data, std::size_t length, std::size_t dataSize);

	std::pair<bool, std::size_t> readBytes(void* data, std::size_t count);

	std::pair<bool, std::size_t> write(const void* data, std::size_t length, std::size_t dataSize);

	std::pair<bool, std::size_t> writeBytes(const void* data, std::size_t count);

	std::optional<std::uint64_t> size();

	bool seek(std::int64_t offset, int origin = SEEK_SET);

	bool rewind();

	FILE* getHandle();

	static void setAppDataDir(const std::filesystem::path& dir);

	// Sets the size of the file to "size" and returns whether it succeeded or not
	bool setSize(std::uint64_t size);

	static std::filesystem::path getAppData();
};