#include "server_node.h"
#include "core/config/engine.h"
#include "you_done_it/ydi_server.h"

ServerNode *ServerNode::singleton_instance{ nullptr };
String const ServerNode::sig_clue_revealed{ "clue_revealed" };
String const ServerNode::sig_connection_established{ "connection_established" };
String const ServerNode::sig_connection_lost{ "connection_lost" };

void ServerNode::_bind_methods() {
	ADD_SIGNAL(MethodInfo(sig_clue_revealed, PropertyInfo(Variant::INT, "id")));
	ADD_SIGNAL(MethodInfo(sig_connection_established));
	ADD_SIGNAL(MethodInfo(sig_connection_lost));

	ClassDB::bind_method(D_METHOD("open"), &self_type::open);
	ClassDB::bind_method(D_METHOD("close"), &self_type::close);
	ClassDB::bind_method(D_METHOD("is_open"), &self_type::is_open);
	ClassDB::bind_method(D_METHOD("send_conclusion", "method", "motive", "murderer"), &self_type::send_conclusion);
	ClassDB::bind_static_method(self_type::get_class_static(), "get_singleton", &self_type::get_singleton);
}

void ServerNode::enter_tree() {
	if (singleton_instance) {
		print_error("Attempt to create duplicate ServerNode, aborting");
		abort();
	} else {
		singleton_instance = this;
	}
}

void ServerNode::process(double delta) {
	bool new_is_connected{ ydi::server::has_client() };
	if (this->is_connected != new_is_connected) {
		this->is_connected = new_is_connected;
		emit_signal(this->is_connected ? sig_connection_established : sig_connection_lost);
	}
	if (!ydi::server::has_client()) {
		return;
	}
	Vector<NetworkData::ClueID> new_clues{};
	if (ydi::server::receive::new_clues(new_clues)) {
		for (NetworkData::ClueID clue : new_clues) {
			emit_signal(sig_clue_revealed, clue);
		}
	}
}

void ServerNode::exit_tree() {
	ydi::server::close();
	if (singleton_instance == this) {
		singleton_instance = nullptr;
	}
}

void ServerNode::_notification(int what) {
	if (Engine::get_singleton()->is_editor_hint()) {
		return;
	}
	switch (what) {
		case NOTIFICATION_ENTER_TREE:
			set_process(true);
			enter_tree();
			return;
		case NOTIFICATION_PROCESS:
			process(get_process_delta_time());
			return;
		case NOTIFICATION_EXIT_TREE:
			exit_tree();
			return;
		default:
			return;
	}
}

ServerNode *ServerNode::get_singleton() {
	return singleton_instance;
}

void ServerNode::send_conclusion(NetworkData::ClueID method, NetworkData::ClueID motive, NetworkData::ClueID murderer) {
	ydi::server::send::conclusion(method, motive, murderer);
}

bool ServerNode::open() {
	return ydi::server::open();
}

void ServerNode::close() {
	ydi::server::close();
}

bool ServerNode::is_open() const {
	return ydi::server::is_running();
}