package com.novel.tech1.gatewayServer.persistence;

import com.novel.tech1.gatewayServer.gatewayserver.GatewayServer;
import com.novel.tech1.utilityLibrary.datastructure.Arguments;
import java.util.HashMap;
import java.util.Map;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

/**
 *
 * @author David Yamanoha
 */
public abstract class ModelPersistence
{
    /** Entity manager responsible for database managed entities. */
    public static EntityManagerFactory m_entityManagerFactory;

    /**
     * Initializes the entity manager factory.
     * @param args Args to overwrite the factory creation with.
     */
    public static void initialize(Arguments args)
    {
        Map override = new HashMap();

        /** Override ip, port, and database name. */
        if(args.contains("-dbip") || args.contains("-dbp") || args.contains("-dbn"))
        {
            if(!args.contains("-dbip") || !args.contains("-dbp") || !args.contains("-dbn"))
            {
                GatewayServer.error("If -dbip, -dbp, or -dbn are specified they all must be specified.");

                return;
            }

            String ip = (String)args.get("-dbip");

            String port = (String)args.get("-dbp");

            String database = (String)args.get("-dbn");

            override.put("javax.persistence.jdbc.url", "jdbc:mysql://" + ip + ":" + port + "/" + database);
        }

        if(args.contains("-dbun"))
            override.put("javax.persistence.jdbc.user", (String)args.get("-dbun"));

        if(args.contains("-dbpw"))
            override.put("javax.persistence.jdbc.password", (String)args.get("-dbpw"));

        /** Generate the factory. */
        m_entityManagerFactory =
                Persistence.createEntityManagerFactory("game_pu", override);
    }
}