package kernel.net;

import lib.WorldPos;

typedef NetworkID = Int;
typedef GenericPackage = Package<Dynamic>;

enum PackageTypes {
	Data(proto:String);
	DataNoResponse(proto:String);
	Response;
	RouteDiscover(reachableIDs:Array<{id:NetworkID, cost:Int}>);
	RouteDiscoverResponse(reachableIDs:Array<{id:NetworkID, cost:Int}>);
	RouteDiscoverUpdate(reachableIDs:Array<{id:NetworkID, cost:Int}>);
	GPSResponse(pos:WorldPos);
	GPSRequest();
}

/**
	Representing a network package.
**/
@:structInit class Package<T> {
	public final fromID:NetworkID;
	public final toID:NetworkID;
	public final msgID:Int;
	public final type:PackageTypes;
	public final data:T;
	public var ttl:Int;

	public function new(fromID:NetworkID, toID:NetworkID, msgID:Int, type:PackageTypes, data:T, ttl:Int) {
		this.fromID = fromID;
		this.toID = toID;
		this.msgID = msgID;
		this.type = type;
		this.data = data;
		this.ttl = ttl;
	}

	/**
		Create package that can be used as a response.
	**/
	public function createResponse<T2>(newData:T2):Package<T2> {
		return {
			toID: fromID,
			fromID: toID,
			msgID: msgID,
			type: Response,
			data: newData,
			ttl: Net.DEFAULT_TTL,
		};
	}

	/**
		Wrapper for `Net.respondTo`.
	**/
	public function respond(data:Dynamic) {
		Net.respondTo(this, data);
	}
}