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package net.fortytwo.rdfagents;

import net.fortytwo.rdfagents.data.DatasetFactory;
import net.fortytwo.rdfagents.jade.QueryConsumerImpl;
import net.fortytwo.rdfagents.jade.RDFAgentImpl;
import net.fortytwo.rdfagents.jade.RDFAgentsPlatformImpl;
import net.fortytwo.rdfagents.jade.SailBasedQueryProvider;
import net.fortytwo.rdfagents.jade.testing.EchoCallback;
import net.fortytwo.rdfagents.messaging.ConsumerCallback;
import net.fortytwo.rdfagents.messaging.query.QueryConsumer;
import net.fortytwo.rdfagents.model.AgentId;
import net.fortytwo.rdfagents.model.Dataset;
import net.fortytwo.rdfagents.model.RDFAgent;
import net.fortytwo.rdfagents.model.RDFAgentsPlatform;
import net.fortytwo.rdfagents.model.RDFContentLanguage;
import org.openrdf.model.Value;
import org.openrdf.model.impl.SimpleValueFactory;
import org.openrdf.sail.Sail;
import org.openrdf.sail.memory.MemoryStore;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Properties;

/**
 * @author Joshua Shinavier (http://fortytwo.net)
 */
public class Demo {

    private final Sail sail;

    private void run(final Properties config) throws Exception {

        RDFAgentsPlatform p = new RDFAgentsPlatformImpl("fortytwo.net", 8888, config);

        RDFAgent a1 = new RDFAgentImpl(p,
                new AgentId("urn:x-agent:[email protected]", "xmpp://[email protected]"));
        RDFAgent a2 = new RDFAgentImpl(p,
                new AgentId("urn:x-agent:[email protected]", "xmpp://[email protected]"));

        RDFAgent a3 = new RDFAgentImpl(p,
                new AgentId("urn:x-agent:[email protected]", "xmpp://[email protected]"));

        a2.setQueryProvider(new SailBasedQueryProvider(a2, sail));
        a3.setQueryProvider(new SparqlDescribeQueryProvider(a3, "http://dbpedia.org/sparql"));

        Sail baseSail = new MemoryStore();
        baseSail.initialize();

        RDFAgent ld = new LinkedDataAgent(baseSail, p,
                new AgentId("urn:x-agent:[email protected]", "xmpp://[email protected]"));

        QueryConsumer qc = new QueryConsumerImpl(a1);

        ConsumerCallback callback = new EchoCallback(p.getDatasetFactory());

        // Local store
        //qc.submit(RDFAgents.createIRI("http://example.org/ns#arthur"), a2.getIdentity(), callback);

        // Linked Data
        //qc.submit(RDFAgents.createIRI("http://identi.ca/user/114"), ld.getIdentity(), callback);

        // Linked Data
        qc.submit(RDFAgents.createIRI("http://xmlns.com/foaf/0.1/Person"), ld.getIdentity(), callback);

        // SPARQL
        //qc.submit(RDFAgents.createIRI("http://dbpedia.org/resource/Beijing"), a3.getIdentity(), callback);

        waitAWhile(10000);

        p.shutDown();
    }

    private void waitAWhile(final long time) {
        Object mutex = "";
        synchronized (mutex) {
            try {
                mutex.wait(time);
            } catch (InterruptedException e) {
                e.printStackTrace(System.err);
            }
        }
    }

    private Demo() throws Exception {
        DatasetFactory datasetFactory = new DatasetFactory(SimpleValueFactory.getInstance());
        for (RDFContentLanguage l : RDFContentLanguage.values()) {
            datasetFactory.addLanguage(l);
        }
        Dataset d;
        try (InputStream in = RDFAgents.class.getResourceAsStream("dummyData.trig")) {
            d = datasetFactory.parse(in, RDFContentLanguage.RDF_TRIG);
        }

        sail = new MemoryStore();
        sail.initialize();
        datasetFactory.addToSail(d, sail);
    }

    public static void main(final String args[]) {
        try {
            File props;
            if (1 == args.length) {
                props = new File(args[0]);
            } else {
                props = new File("rdfagents.props");
                //printUsage();
                //System.exit(1);
            }

            Properties config = new Properties();
            try (InputStream in = new FileInputStream(props)) {
                config.load(in);
            }

            new Demo().run(config);
        } catch (Throwable t) {
            t.printStackTrace(System.err);
            System.exit(1);
        }
    }

    private static void printUsage() {
        System.out.println("Usage:  rdfagents [configuration file]");
        System.out.println("For more information, please see:\n"
                + "  .");
    }
}