/*
    * #%L
    * prolobjectlink-jpi-jpl-swi
    * %%
    * Copyright (C) 2019 Prolobjectlink Project
    * %%
    * This program is free software: you can redistribute it and/or modify
    * it under the terms of the GNU Lesser General Public License as
    * published by the Free Software Foundation, either version 2.1 of the
   * License, or (at your option) any later version.
   * 
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Lesser Public License for more details.
   * 
   * You should have received a copy of the GNU General Lesser Public
   * License along with this program.  If not, see
   * <http://www.gnu.org/licenses/lgpl-2.1.html>.
   * #L%
   */
  package io.github.prolobjectlink.prolog.jpl.swi;
  
  import java.io.File;
  import java.util.ArrayList;
  import java.util.List;
  
  import io.github.prolobjectlink.prolog.Licenses;
  import io.github.prolobjectlink.prolog.PrologEngine;
  import io.github.prolobjectlink.prolog.PrologProvider;
  import io.github.prolobjectlink.prolog.jpl.JplEngine;
  import jpl.JPL;
  import jpl.Query;
  import jpl.Term;
  
  /**
   * 
   * @author Jose Zalacain
   * @since 1.0
   */
  public class SwiPrologEngine extends JplEngine implements PrologEngine {
  
  	protected SwiPrologEngine(PrologProvider provider) {
  		super(provider);
  	}
  
  	protected SwiPrologEngine(PrologProvider provider, String file) {
  		super(provider, file);
  	}
  
  	public final String getLicense() {
  		return Licenses.LGPL_V2_1;
  	}
  
  	public final String getVersion() {
  		Term swi = (Term) new Query("current_prolog_flag(version_data,Swi)").oneSolution().get("Swi");
  		return "" + swi.arg(1) + "." + swi.arg(2) + "." + swi.arg(3) + " (JPL v" + JPL.version_string() + ")";
  	}
  
  	public final String getVendor() {
  		return "SWI-Prolog";
  	}
  
  	public final String getName() {
  		return "SWI-Prolog";
  	}
  
  	public final List<String> verify() {
  		String slash = File.separator;
  		List<String> list = new ArrayList<String>();
  		String javaHome = System.getProperty("java.home");
  		String javaVersion = System.getProperty("java.version");
  		String pathSeparator = System.getProperty("path.separator");
  		if (runOnWindows()) {
  			list.add(javaHome.replace(slash + "jre", slash) + "/jdk" + javaVersion + "/bin" + pathSeparator);
  			list.add(javaHome.replace(slash + "jre", slash) + "/jdk" + javaVersion + "/lib/tools.jar" + pathSeparator);
  			list.add(
  					javaHome.replace(slash + "jre", slash) + "/jdk" + javaVersion + "/jre/lib/rt.jar;" + pathSeparator);
  			list.add("C:/Program Files/swipl/lib/jpl.jar" + pathSeparator);
  			list.add("C:/Program Files/swipl/bin");
  		} else if (runOnOSX()) {
  			// TODO environment routes for MacOSX
  		} else if (runOnLinux()) {
  			list.add("/usr/lib/jvm/java-" + javaVersion + "-openjdk-" + getOSArch() + "/bin" + pathSeparator);
  			list.add("/usr/lib/jvm/java-" + javaVersion + "-openjdk-" + getOSArch() + "/lib/tools.jar" + pathSeparator);
  			list.add(
  					"/usr/lib/jvm/java-" + javaVersion + "-openjdk-" + getOSArch() + "/jre/lib/rt.jar" + pathSeparator);
  			list.add("/usr/local/bin/swipl/lib/jpl.jar" + pathSeparator);
  			list.add("/usr/local/bin");
  		}
  		return list;
  	}
  
  }