package de.ctdo.bunti.dmx;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationListener;

import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import de.ctdo.bunti.DeviceChangedEvent;
import de.ctdo.bunti.artnet.SimpleArtNetSender;
import de.ctdo.bunti.model.*;

@Component

public class DMXMixerImpl implements DMXMixer, ApplicationListener<DeviceChangedEvent> {
	private static final Logger LOGGER = LoggerFactory.getLogger(DMXMixerImpl.class);
	private static final String ARTNET_DEVICE_ADDRESS = "192.168.0.90";
	
	private final Map<Integer,Integer> dmxMap = Collections.synchronizedMap(new HashMap<Integer,Integer>());
	private SimpleArtNetSender artNetSender;
	private boolean hasDataChanged = true;
	
	@Autowired
	public void setArtNetSender(SimpleArtNetSender artNetSender) {
		this.artNetSender = artNetSender;
	}


	public void initDMXData() {
		for (int i = 0; i <= DMX.DMX_CHANNELS_MAX; i++) {
			dmxMap.put(i, 0);
		}
	}


	@Scheduled(fixedDelay=100) //TODO aendern auf 10ms
	public void sendOutDMXBuffer() {	
		if( dmxMap.size() == 0) initDMXData();

		if( hasDataChanged ) {
			artNetSender.sendDMXData(dmxMap, ARTNET_DEVICE_ADDRESS);
			hasDataChanged = false;
		}
		
//		logger.debug(sb.toString()); 		
	}
	
	public void updateDevice(BuntiDevice device, Map<String, Object> options) {
		BuntiDMXDevice dmxDev = (BuntiDMXDevice)device;
	
		if( dmxDev.setValuesFromOptions(options) ) {
			
			dmxMap.putAll(dmxDev.getChannelData());
			
			LOGGER.info("setValuesFromOptions on " + device);
		} else {
			LOGGER.info("setValuesFromOptions on " + device + " failed");
		}
		
	}
	
	@Override
	public void setDMX512Channel(int channel, int value) {
		if(!DMX.checkChannelBoundaries(channel)) return;
		value = DMX.sanitizeDMXValue(value);
		
		dmxMap.put(channel, value);
		hasDataChanged = true;
	}
	
	@Override
	public void onApplicationEvent(DeviceChangedEvent arg0) {		
		if( arg0.getDevice() instanceof BuntiDMXDevice) {
			updateDevice(arg0.getDevice(), arg0.getOptions());
			
			hasDataChanged = true;
			// TODO: hier kann man z.B. auch noch direkt einmal die DMX Daten zu verschicken veranlassen
		}
	}
	
}