package org.gcube.data.transfer.library.transferers;

import lombok.extern.slf4j.Slf4j;

import org.gcube.data.transfer.library.caches.CapabilitiesCache;
import org.gcube.data.transfer.library.faults.HostingNodeNotFoundException;
import org.gcube.data.transfer.library.faults.ServiceNotFoundException;
import org.gcube.data.transfer.library.faults.UnreachableNodeException;
import org.gcube.data.transfer.library.utils.Utils;
import org.gcube.data.transfer.model.ServiceConstants;
import org.gcube.data.transfer.model.TransferCapabilities;
@Slf4j
public class TransfererBuilder {

	private static final int timeout=10*1000;
	
	
	
	public static Transferer getTransfererByHost(String host) throws UnreachableNodeException, ServiceNotFoundException{
		log.debug("Get transferer by Host "+host);
		if(!Utils.pingURL(host, timeout)) throw new UnreachableNodeException("No response from host in "+timeout);
		if(!Utils.pingURL(host+"REST-API/"+ServiceConstants.APPLICATION_PATH, timeout)) throw new ServiceNotFoundException("No DT Service found @ "+host+"REST-API/"+ServiceConstants.APPLICATION_PATH);
		log.debug("Host is ok, getting targetCapabilities");
		TransferCapabilities cap=CapabilitiesCache.getInstance().getObject(host);
		return new HTTPTransferer(cap); 
	}
	public static Transferer getTransfererByhostingNodeId(String hostId) throws HostingNodeNotFoundException, UnreachableNodeException, ServiceNotFoundException{
		String hostname=retrieveHostnameByNodeId(hostId);
		return getTransfererByHost(hostname);
	}

	
	private static String retrieveHostnameByNodeId(String nodeId)throws HostingNodeNotFoundException{
		return null;
	}
}