#include "PackIndex.h"
#include "BinaryIO.h"
#include "Game.h"
#include "Logger.h"

PackIndex::PackIndex(const std::filesystem::path& filePath) {
	m_FileStream = std::ifstream(filePath / "versions" / "primary.pki", std::ios::in | std::ios::binary);

	BinaryIO::BinaryRead<uint32_t>(m_FileStream, m_Version);
	BinaryIO::BinaryRead<uint32_t>(m_FileStream, m_PackPathCount);
	
	m_PackPaths.resize(m_PackPathCount);
	for (auto& item : m_PackPaths) {
		BinaryIO::ReadString<uint32_t>(m_FileStream, item, BinaryIO::ReadType::String);
	}

	BinaryIO::BinaryRead<uint32_t>(m_FileStream, m_PackFileIndexCount);

	for (int i = 0; i < m_PackFileIndexCount; i++) {
		PackFileIndex packFileIndex;
		BinaryIO::BinaryRead<PackFileIndex>(m_FileStream, packFileIndex);

		m_PackFileIndices.push_back(packFileIndex);
	}

	Log::Info("Loaded pack catalog with {:d} pack files and {:d} files", m_PackPaths.size(), m_PackFileIndices.size());

	for (auto& item : m_PackPaths) {
		std::replace(item.begin(), item.end(), '\\', '/');

		auto* pack = new Pack(filePath / item);

		m_Packs.push_back(pack);
	}

	m_FileStream.close();
}

PackIndex::~PackIndex() {
	for (const auto* item : m_Packs) {
		delete item;
	}
}