package com.e1.pdj;

import com.cycling74.max.MaxSystem;

import java.awt.Component;
import java.awt.Frame;
import java.awt.Toolkit;
import java.io.*;

/**
 * Startup class for pdj.
 */
public class PDJSystem {
	private static int loaded = 0;

	public static PrintStream err;

	public static PrintStream out;

	/**
	  * Called by the pdj external when the JVM is initializing.
	  */
	public static void _init_system() {
		if ( loaded == 1 )
			return;
		linknative();
		initIO();
	}

	static void resolvRtJar() {
		char ps = File.separatorChar;
		String systemCpJar = System.getProperty("pdj.JAVA_HOME");
		if ( systemCpJar == null ) {
			systemCpJar = System.getProperty("JAVA_HOME");
			if ( systemCpJar == null ) {
				systemCpJar = System.getenv("JAVA_HOME");
			}
		}
        
		System.setProperty("pdj.JAVA_HOME", systemCpJar);
		GenericCompiler.rtJar = systemCpJar + ps + "jre" + ps + "lib" + ps + "rt.jar" + File.pathSeparator;
	}

	/**
	  * Link the Java native classes
	  */
	static void linknative() {
		String pdjHome = System.getProperty("pdj.home");

		// this is a hack to be sure that statics of MaxSystem are loaded
		// before everything
		Class cls = MaxSystem.class;

		String osname = System.getProperty("os.name");

		if ( osname.indexOf("Linux") != -1 ) {
			// maps PD object as a JVM native library
			Runtime.getRuntime().load(pdjHome + "/pdj.pd_linux");
			loaded = 1;
			resolvRtJar();
			return;
		}

		if ( osname.indexOf("Windows") != -1 ) {
			// maps PD object as a JVM native library
			Runtime.getRuntime().load(pdjHome + "/pdj.dll");
			loaded = 1;
			resolvRtJar();
			return;
		}

		if ( osname.indexOf("OS X") != -1 ) {
			// maps PD object as a JVM native library
			try {
				Runtime.getRuntime().load(pdjHome + "/pdj.pd_darwin");
			} catch (UnsatisfiedLinkError e ) {
				Runtime.getRuntime().load(pdjHome + "/pdj.pd_imac");
			}
			loaded = 1;
 
            // this will initialize the AWT component in another thread
            new Thread(new Runnable() {
            		public void run() {
                    Class clz = Component.class;
            		}
    			}).start();

			GenericCompiler.rtJar = "/System/Library/Frameworks/JavaVM.framework/Classes/classes.jar:";

			return;
		}

		System.err.println("pdj: operating system type not found, the native link has not been made");
	}

	static boolean redirectIO() {
		String prop = System.getProperty("pdj.redirect-pdio");

		if ( prop == null )
			return true;

		if ( prop.charAt(0) == '0' )
			return false;

		if ( prop.equals("false") )
			return false;

		return true;
	}

	static void initIO() {
		if ( redirectIO() ) {
			if ( System.getProperty("os.name").indexOf("Windows") == -1 ) {
				out = new PrintStream(new ConsoleStream(), true);
				err = new PrintStream(new ConsoleStream(), true);
			} else {
				out = new PrintStream(new ConsoleStreamWin32(), true);
				err = new PrintStream(new ConsoleStreamWin32(), true);
			}
			System.setOut(out);
			System.setErr(err);
		} else {
			out = System.out;
			err = System.err;
		}
	}
    
    public static boolean isSystemPropertyTrue(String name) {
        String value = System.getProperty(name);
        
        if ( value == null ) 
            return false;
        
        if ( value.toLowerCase().equals("true") ) 
            return true;
        
        if ( value.equals("1") )
            return true;
        
        return false;
    }
}