#include "connection.h"



Connection::Connection(SOCKET sock, 
					   sockaddr_in sockaddr, 
					   LoginInfo log, 
					   PlayerInfo play):
	m_sock(sock), 
	m_addr(sockaddr), 
	m_loginfo(log), 
	m_playinfo(play) {

}

Connection::~Connection() { closesocket(m_sock); }

uint64_t Connection::GetHash(bool self) const { return self? m_loginfo.sid: m_playinfo.id; }

uint64_t Connection::GetTeamHash() const { return m_loginfo.tid; }

std::string Connection::GetName() const { return m_loginfo.name; }

void Connection::AddInput(Input in) { m_input_manifest.insert({ in.timestamp, in }); }

Output* Connection::getOutput(Timestamp time) {
	auto out = m_output_manifest.find(time);
	if (out != m_output_manifest.end())
		return &out->second;
	return nullptr;
}

Sync Connection::getSync(Timestamp time) {
	Sync sync;
	auto out = m_output_manifest.find(time);
	if (out != m_output_manifest.end()) {
		sync.timestamp = out->second.timestamp;
		sync.position = out->second.position;
		sync.sid = m_loginfo.sid;
	}
	return sync;
}

SOCKET Connection::getSock() const { return m_sock; }

PlayerInfo* Connection::getInfo() const { return (PlayerInfo*)&m_playinfo; }

sockaddr_in* Connection::getAddr() const { return (sockaddr_in*)&m_addr; }

void Connection::getPacks(SOCKET sock) {
	std::vector<char*> lsPck;
	Input in;
	while (true) {
		lsPck = recvPacksFrom(sock, &m_buf, m_addr);

		for (auto& pck : lsPck) {
			uint32_t bsize = m_buf.len - (pck - m_buf.ptr);
			switch (netprot::getType(pck, 1)) {
				using enum netprot::PACKET_TYPE;
			case INPUT:
				if (Deserialize(&in, pck, &bsize))
					m_input_manifest[in.timestamp] = in;
				break;
			default: break;
			}
		}
		lsPck.clear();
	}
}

void Connection::sendPacks(SOCKET sock, std::unordered_map<uint64_t, Connection*> conns) {
	while (m_last_out < m_output_manifest.size()) {
		Output out = m_output_manifest.at(m_last_out++);

		for (auto& [key, conn] : conns) {
			if (m_playinfo.id == conn->GetHash(true))
				continue;
			sendPackTo<Output>(sock, &out, &m_bufout, conn->getAddr());
		}
		++outs;

		[[unlikely]] if (last == 0) // !
			last = out.timestamp;

		outs += out.timestamp + last;

		if (outs >= 1000) {
			outs -= 1000;
			Sync sync;
			sync.hp = player->GetHP();
			sync.timestamp = out.timestamp;
			sync.position = out.position;
			sync.sid = m_loginfo.sid;
			sync.timer = timer;
			sync.timestamp = out.timestamp;
			sync.ammo = -1;
			sendPackTo<Sync>(sock, &sync, &m_bufout, &m_addr);
		}

		m_output_vector.pop_front();
	}
}

Timestamp Connection::Run(World* world) {
	Input in, last;
	Output out;
	Timestamp tstamp = 0;
	float el;

	if (m_input_manifest.size() < 2)
		return tstamp;

	while (m_last_in < m_input_manifest.size()) {
		in = m_input_manifest.at(m_last_in + 1);
		last = m_input_manifest.at(m_last_in);

		player->SetDirection(in.direction);
		player->ApplyPhysics(player->GetInput(in.keys.forward, 
											  in.keys.backward, 
											  in.keys.left, 
											  in.keys.right, 
											  in.keys.jump, false, el), world, el);

		if (in.keys.block) {
			bool block = false;
			ChunkMod* cmod = world->ChangeBlockAtCursor(BLOCK_TYPE::BTYPE_METAL, 
														player->GetPosition(), 
														player->GetDirection(), 
														block, true);
			if (cmod)
				ChunkDiffs.emplace_back(cmod);
		}

		if (in.keys.shoot && m_shoot_acc <= 0.)
			Bullets.push_back(Bullet(player->GetPOV() + player->GetDirection(), player->GetDirection()));
		
		out.position = player->GetPositionAbs();
		out.direction = in.direction;
		out.timestamp = in.timestamp;
		out.id = m_playinfo.id;

		m_output_manifest[out.timestamp] = out;
		m_output_vector.push_back(out);
		tstamp = out.timestamp;
		
		++m_last_in;
	}

	return tstamp;
}

void Connection::CleanInputManifest(Timestamp time) {
	auto wat = m_input_manifest.find(time);

	while (wat != m_input_manifest.begin())
		m_input_manifest.erase(wat--);
}

Timestamp Connection::GetTStamp() const { return m_tstamp; }