package org.simantics.r;

import org.simantics.db.RequestProcessor;
import org.simantics.db.Resource;
import org.simantics.db.ReadGraph;
import org.simantics.db.request.Read;
import org.simantics.db.Session;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.service.QueryControl;

public class RResource {
    
    public final Resource Model;
    public final Resource RProperty;
    public final Resource Script;
    public final Resource Script_text;
    public final Resource Script_text_Inverse;
    public final Resource Session;
    public final Resource SessionConfiguration;
    public final Resource SessionConfiguration_hasScript;
    public final Resource SessionConfiguration_host;
    public final Resource SessionConfiguration_host_Inverse;
    public final Resource SessionConfiguration_password;
    public final Resource SessionConfiguration_password_Inverse;
    public final Resource SessionConfiguration_port;
    public final Resource SessionConfiguration_port_Inverse;
    public final Resource SessionConfiguration_username;
    public final Resource SessionConfiguration_username_Inverse;
    public final Resource Session_hasValue;
    public final Resource Session_hasValue_Inverse;
    public final Resource TabContribution;
        
    public static class URIs {
        public static final String Model = "http://www.simantics.org/R-1.0/Model";
        public static final String RProperty = "http://www.simantics.org/R-1.0/RProperty";
        public static final String Script = "http://www.simantics.org/R-1.0/Script";
        public static final String Script_text = "http://www.simantics.org/R-1.0/Script/text";
        public static final String Script_text_Inverse = "http://www.simantics.org/R-1.0/Script/text/Inverse";
        public static final String Session = "http://www.simantics.org/R-1.0/Session";
        public static final String SessionConfiguration = "http://www.simantics.org/R-1.0/SessionConfiguration";
        public static final String SessionConfiguration_hasScript = "http://www.simantics.org/R-1.0/SessionConfiguration/hasScript";
        public static final String SessionConfiguration_host = "http://www.simantics.org/R-1.0/SessionConfiguration/host";
        public static final String SessionConfiguration_host_Inverse = "http://www.simantics.org/R-1.0/SessionConfiguration/host/Inverse";
        public static final String SessionConfiguration_password = "http://www.simantics.org/R-1.0/SessionConfiguration/password";
        public static final String SessionConfiguration_password_Inverse = "http://www.simantics.org/R-1.0/SessionConfiguration/password/Inverse";
        public static final String SessionConfiguration_port = "http://www.simantics.org/R-1.0/SessionConfiguration/port";
        public static final String SessionConfiguration_port_Inverse = "http://www.simantics.org/R-1.0/SessionConfiguration/port/Inverse";
        public static final String SessionConfiguration_username = "http://www.simantics.org/R-1.0/SessionConfiguration/username";
        public static final String SessionConfiguration_username_Inverse = "http://www.simantics.org/R-1.0/SessionConfiguration/username/Inverse";
        public static final String Session_hasValue = "http://www.simantics.org/R-1.0/Session/hasValue";
        public static final String Session_hasValue_Inverse = "http://www.simantics.org/R-1.0/Session/hasValue/Inverse";
        public static final String TabContribution = "http://www.simantics.org/R-1.0/TabContribution";
    }
    
    public static Resource getResourceOrNull(ReadGraph graph, String uri) {
        try {
            return graph.getResource(uri);
        } catch(DatabaseException e) {
            System.err.println(e.getMessage());
            return null;
        }
    }
    
    public RResource(ReadGraph graph) {
        Model = getResourceOrNull(graph, URIs.Model);
        RProperty = getResourceOrNull(graph, URIs.RProperty);
        Script = getResourceOrNull(graph, URIs.Script);
        Script_text = getResourceOrNull(graph, URIs.Script_text);
        Script_text_Inverse = getResourceOrNull(graph, URIs.Script_text_Inverse);
        Session = getResourceOrNull(graph, URIs.Session);
        SessionConfiguration = getResourceOrNull(graph, URIs.SessionConfiguration);
        SessionConfiguration_hasScript = getResourceOrNull(graph, URIs.SessionConfiguration_hasScript);
        SessionConfiguration_host = getResourceOrNull(graph, URIs.SessionConfiguration_host);
        SessionConfiguration_host_Inverse = getResourceOrNull(graph, URIs.SessionConfiguration_host_Inverse);
        SessionConfiguration_password = getResourceOrNull(graph, URIs.SessionConfiguration_password);
        SessionConfiguration_password_Inverse = getResourceOrNull(graph, URIs.SessionConfiguration_password_Inverse);
        SessionConfiguration_port = getResourceOrNull(graph, URIs.SessionConfiguration_port);
        SessionConfiguration_port_Inverse = getResourceOrNull(graph, URIs.SessionConfiguration_port_Inverse);
        SessionConfiguration_username = getResourceOrNull(graph, URIs.SessionConfiguration_username);
        SessionConfiguration_username_Inverse = getResourceOrNull(graph, URIs.SessionConfiguration_username_Inverse);
        Session_hasValue = getResourceOrNull(graph, URIs.Session_hasValue);
        Session_hasValue_Inverse = getResourceOrNull(graph, URIs.Session_hasValue_Inverse);
        TabContribution = getResourceOrNull(graph, URIs.TabContribution);
    }
    
    public static RResource getInstance(ReadGraph graph) {
        Session session = graph.getSession();
        RResource ret = session.peekService(RResource.class);
        if(ret == null) {
            QueryControl qc = graph.getService(QueryControl.class);
            ret = new RResource(qc.getIndependentGraph(graph));
            session.registerService(RResource.class, ret);
        }
        return ret;
    }
    
    public static RResource getInstance(RequestProcessor session) throws DatabaseException {
        RResource ret = session.peekService(RResource.class);
        if(ret == null) {
            ret = session.syncRequest(new Read<RResource>() {
                public RResource perform(ReadGraph graph) throws DatabaseException {
                    QueryControl qc = graph.getService(QueryControl.class);
                    return new RResource(qc.getIndependentGraph(graph));
                }
            });
            session.registerService(RResource.class, ret);
        }
        return ret;
    }
    
}