package simple.love;

import android.app.Activity;
import android.content.ComponentName;
import android.content.ServiceConnection;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class Simple extends Activity {
	SimpleService mBoundRecService;
	Button start,end;
	VolumeMeter volumeMeter;
	BackgroundRecorder recorder;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);


		volumeMeter = (VolumeMeter)findViewById(R.id.volume_meter);
		start = (Button) findViewById(R.id.sbut);
		end = (Button) findViewById(R.id.ebut);
		end.setOnClickListener(new OnClickListener(){
			public void onClick(View v) {
				recorder.isRecording = false;
				start.setVisibility(View.VISIBLE);
				end.setVisibility(View.GONE);
			}
		});
		start.setOnClickListener(new OnClickListener(){
			public void onClick(View v) {
				recorder = new BackgroundRecorder(new ClickHandler());
				recorder.execute();
				start.setVisibility(View.GONE);
				end.setVisibility(View.VISIBLE);
			}
		});
	}
	public class BackgroundRecorder extends AsyncTask<String,String,String> {
		Handler handler;
		boolean isRecording;
		BackgroundRecorder(Handler handler) {
			this.handler = handler;
		}
		@Override
		protected String doInBackground(String... params) {
			isRecording=true;
			int audioBuf = AudioRecord.getMinBufferSize(44100,
					AudioFormat.CHANNEL_CONFIGURATION_MONO,
					AudioFormat.ENCODING_PCM_16BIT) * 2;

			// Set up the audio input.
			AudioRecord audioInput = new AudioRecord(MediaRecorder.AudioSource.MIC,
					44100,
					AudioFormat.CHANNEL_CONFIGURATION_MONO,
					AudioFormat.ENCODING_PCM_16BIT,
					audioBuf);
			while(audioInput.getState() != AudioRecord.STATE_INITIALIZED){}
			audioInput.startRecording();
			byte[] read = new byte[audioBuf];
			while(isRecording) {
				audioInput.read(read, 0, read.length);
				Message powerMsg = new Message();
				float sigPower = SignalUtil.calcSigPower(read, 0, read.length);
				Bundle powerBundle = new Bundle();
				powerBundle.putFloat("power", sigPower);
				System.out.println("power" + sigPower);
				powerMsg.setData(powerBundle);
				handler.sendMessage(powerMsg);
			}
			audioInput.stop();
			return null;
		}
	}


	public class ClickHandler extends Handler {
		@Override
		public void handleMessage(Message msg) {
			volumeMeter.update(msg.getData().getFloat("power"));
			volumeMeter.invalidate();
		}
	}
}