package de.c3ma.ollo;

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;

import javax.management.RuntimeErrorException;
import javax.swing.SwingUtilities;

import org.luaj.vm2.Globals;
import org.luaj.vm2.LuaValue;
import org.luaj.vm2.lib.jse.JsePlatform;

import de.c3ma.ollo.mockup.DoFileFunction;
import de.c3ma.ollo.mockup.ESP8266File;
import de.c3ma.ollo.mockup.ESP8266Net;
import de.c3ma.ollo.mockup.ESP8266Node;
import de.c3ma.ollo.mockup.ESP8266Time;
import de.c3ma.ollo.mockup.ESP8266Tmr;
import de.c3ma.ollo.mockup.ESP8266Uart;
import de.c3ma.ollo.mockup.ESP8266Wifi;
import de.c3ma.ollo.mockup.ESP8266Ws2812;

/**
 * created at 28.12.2017 - 13:19:32<br />
 * creator: ollo<br />
 * project: WS2812Emulation<br />
 * $Id: $<br />
 * 
 * @author ollo<br />
 */
public class WS2812Simulation implements LuaSimulation {

	private Globals globals = JsePlatform.standardGlobals();
	private ESP8266Tmr espTmr = new ESP8266Tmr();
	private ESP8266File espFile = new ESP8266File();
	private ESP8266Node espNode = new ESP8266Node(this);
	private DoFileFunction doFile = new DoFileFunction(globals);
	private ESP8266Ws2812 ws2812 = new ESP8266Ws2812();
	private String scriptName;

	public WS2812Simulation(File sourceFolder) {
		globals.load(new ESP8266Uart());
		globals.load(ws2812);
		globals.load(espTmr);
		globals.load(espFile);
		globals.load(espNode);
		globals.load(new ESP8266Wifi());
		globals.load(new ESP8266Net());
		globals.load(new ESP8266Time());
		globals.set("dofile", doFile);

		try {
			File tempFile = File.createTempFile("NodemcuSimuFile", "");
			File tempDir = new File(tempFile.getParent() + File.separator + "Nodemcu" + System.currentTimeMillis());
			tempDir.mkdir();

			System.out.println("[Nodemcu] Directory is " + tempDir.getAbsolutePath());

			// Copy all files into the temporary folder
			for (File f : sourceFolder.listFiles()) {
				Files.copy(f.toPath(), new File(tempDir.getAbsolutePath() + File.separator + f.getName()).toPath());
			}

			espFile.setWorkingDirectory(tempDir);
			espNode.setWorkingDirectory(tempDir);
			doFile.setWorkingDirectory(tempDir);
		} catch (IOException e) {
			System.err.println("[Nodemcu] " + e.getMessage());
			espFile = null;
			espNode = null;
		}
	}

	public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable() {
			@Override
			public void run() {
				if (args.length == 0) {
					printUsage();
					return;
				}

				if (args.length >= 1) {
					File f = new File(args[0]);
					if (f.exists()) {
						WS2812Simulation simu = new WS2812Simulation(f.getParentFile());
						System.out.println("File : " + f.getAbsolutePath());

						if (args.length >= 2) {
							simu.setWS2812Layout(new File(args[1]));
						}
						try {
							if (args.length >= 3) {
								File additionalFile = new File(args[2]);
								if (additionalFile.exists() && (simu.doFile != null)) {

									Files.copy(additionalFile.toPath(), new File(simu.doFile.getWorkingDirectory()
											+ File.separator + additionalFile.getName()).toPath());
									System.out.println("Integrate " + additionalFile.getName() + " into simulation");
								} else {
									System.err.println("Script " + args[2] + " cannot be found");
									System.exit(1);
								}
							}

							simu.callScript(f.getName());
						} catch (IOException e) {
							System.err.println("[Nodemcu] " + e.getMessage());
						}
					}
				} else {
					printUsage();
				}

			}
		});
	}

	private void setWS2812Layout(File file) {
		if (file.exists()) {
			ws2812.setLayout(file);
		} else {
			throw new RuntimeException("WS2812 Layout: " + file.getAbsolutePath() + " does not exists");
		}
	}

	private static void printUsage() {
		System.out.println("Usage:");
		System.out.println("one argument required: file to execute.");
		System.out.println(".e.g: init.lua");
	}

	@Override
	public void rebootTriggered() {
		System.out.println("=================== Reboot in Simulation -> call it again =================");
		this.espTmr.stopAllTimer();
		try {
			Thread.sleep(200);
			if (this.scriptName != null) {
				System.out.println("Reexecuting...");
				callScript(this.scriptName);
			}
		} catch (InterruptedException e) {

		}

	}

	private void callScript(String filename) {
		this.scriptName = filename;

		if ((espFile != null) && (espFile.getFileInWorkingDir(filename) != null)) {
			LuaValue chunk = globals.loadfile(espFile.getFileInWorkingDir(filename).getAbsolutePath());
			chunk.call();
		} else {
			throw new RuntimeException("Copy into temporary folder failed; script not available");
		}
	}
}