export module oar;

import core;
import core.files;

export namespace oar {
	constexpr core::usize signature_length{4};

	constexpr core::u8 signature_magic[signature_length]{'o', 'a', 'r', 0};

	struct entry {
		core::u8 signature_magic[signature_length];

		core::path path;

		core::u64 data_offset;

		core::u64 data_length;

		core::u8 padding[244];
	};

	struct archive : public core::fs {
		using core::fs::access_result;

		archive() {

		}

		access_result read_file(core::path const & file_path,
			core::callable<void(core::readable const &)> const & then) override {

			return access_result::access_denied;
		}

		virtual access_result write_file(core::path const & file_path,
			core::callable<void(core::writable const &)> const & then) override {

			return access_result::access_denied;
		}
	};
}

static_assert(sizeof(oar::entry) == 512);