#pragma once

#include <optional>
#include <filesystem>
#include "util/uix.hpp"
#include "util/id_type.hpp"
#include "util/string_lookup.hpp"
#include "util/result.hpp"

#include "assets/components/texture_components.hpp"
#include "assets/data/texture_data.hpp"
#include "assets/data_stores/texture_store.hpp"
#include "assets/data_stores.hpp"
#include "assets/prefetch_queue.hpp"
#include "assets/prefetch_lookups/texture_prefetch_lookup.hpp"
#include "util/string_list.hpp"

namespace assets
{

class texture_loader
{
public:
	using loader_id_type = ztu::id_type_for<texture_loader, ztu::u8>;

	explicit texture_loader(texture_components::flags enabled_components);

	[[nodiscard]] std::optional<loader_id_type> find_loader(const std::string_view& name);

	[[nodiscard]] std::error_code prefetch(
		loader_id_type loader_id,
		const ztu::string_list& directories,
		prefetch_queue& queue
	);

	[[nodiscard]] std::error_code load(
		loader_id_type loader_id,
		const ztu::string_list& directories,
		texture_store& store,
		texture_prefetch_lookup& id_lookup,
		bool pedantic = false
	);

private:
	ztu::string_lookup<loader_id_type> m_loader_id_lookup{};
	texture_components::flags m_enabled_components{ texture_components::flags::none };
};

}