/*
VideoCallActivity.java
Copyright (C) 2010  Belledonne Communications, Grenoble, France

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
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 Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
package org.linphone;



import org.linphone.core.LinphoneCore;
import org.linphone.core.Version;
import org.linphone.core.VideoSize;
import org.linphone.core.video.AndroidCameraRecordManager;

import android.app.Activity;
import android.content.Context;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.SurfaceView;
import android.view.ViewGroup.LayoutParams;

/**
 * For Android SDK >= 
 * @author Guillaume Beraudo
 *
 */
public class VideoCallActivity extends Activity {
	private SurfaceView mVideoView;
	private SurfaceView mVideoCaptureView;
	private AndroidCameraRecordManager recordManager;
	private static final String tag = "Linphone";
	public static boolean launched = false;
	private WakeLock mWakeLock;
	private static final int capturePreviewLargestDimension = 150;
	private int previousPhoneOrientation;
	private int phoneOrientation;

	public void onCreate(Bundle savedInstanceState) {
		launched = true;
		Log.d(tag, "onCreate VideoCallActivity");
		super.onCreate(savedInstanceState);
		setContentView(R.layout.videocall);

		mVideoView = (SurfaceView) findViewById(R.id.video_surface); 
		LinphoneCore lc = LinphoneManager.getLc();
		lc.setVideoWindow(mVideoView);

		mVideoCaptureView = (SurfaceView) findViewById(R.id.video_capture_surface);

		previousPhoneOrientation = AndroidCameraRecordManager.getInstance().getPhoneOrientation();
		phoneOrientation = 90 * getWindowManager().getDefaultDisplay().getOrientation();
		recordManager = AndroidCameraRecordManager.getInstance();
		recordManager.setSurfaceView(mVideoCaptureView, phoneOrientation);
		mVideoCaptureView.setZOrderOnTop(true);
		
		if (!recordManager.isMuted()) LinphoneManager.getInstance().sendStaticImage(false);
		PowerManager pm = (PowerManager)getSystemService(Context.POWER_SERVICE);
		mWakeLock = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK|PowerManager.ON_AFTER_RELEASE,"Linphone");
		mWakeLock.acquire();
		
		if (Version.sdkStrictlyBelow(8)) {
			// Force to display in portrait orientation for old devices
			// as they do not support surfaceView rotation
			setRequestedOrientation(recordManager.isCameraOrientationPortrait() ?
					ActivityInfo.SCREEN_ORIENTATION_PORTRAIT :
					ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
		}

		resizeCapturePreview(mVideoCaptureView);
	}


	@Override
	protected void onResume() {
		// Update call if orientation changed
		if (Version.sdkAboveOrEqual(8) && previousPhoneOrientation != phoneOrientation) {
			CallManager.getInstance().updateCall();
			resizeCapturePreview(mVideoCaptureView);
		}
		super.onResume();
	}


	private void rewriteToggleCameraItem(MenuItem item) {
		if (recordManager.isRecording()) {
			item.setTitle(getString(R.string.menu_videocall_toggle_camera_disable));
		} else {
			item.setTitle(getString(R.string.menu_videocall_toggle_camera_enable));
		}
	}


	private void rewriteChangeResolutionItem(MenuItem item) {
		if (BandwidthManager.getInstance().isUserRestriction()) {
			item.setTitle(getString(R.string.menu_videocall_change_resolution_when_low_resolution));
		} else {
			item.setTitle(getString(R.string.menu_videocall_change_resolution_when_high_resolution));
		}
	}


	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the currently selected menu XML resource.
		MenuInflater inflater = getMenuInflater();
		inflater.inflate(R.menu.videocall_activity_menu, menu);
		
		rewriteToggleCameraItem(menu.findItem(R.id.videocall_menu_toggle_camera));
		rewriteChangeResolutionItem(menu.findItem(R.id.videocall_menu_change_resolution));
		
		if (!recordManager.hasSeveralCameras()) {
			 menu.findItem(R.id.videocall_menu_switch_camera).setVisible(false);
		}
		return true;
	}



	/**
	 * Base capture frame on streamed dimensions and orientation.
	 * @param sv capture surface view to resize the layout
	 * @param vs video size from which to calculate the dimensions
	 */
	private void resizeCapturePreview(SurfaceView sv) {
		LayoutParams lp = sv.getLayoutParams();
		VideoSize vs = LinphoneManager.getLc().getPreferredVideoSize();

		float newRatio = (float) vs.width / vs.height;

		if (vs.isPortrait()) {
			lp.height = capturePreviewLargestDimension;
			lp.width = Math.round(lp.height * newRatio);
		} else {
			lp.width = capturePreviewLargestDimension;
			lp.height = Math.round(lp.width / newRatio);
		}

		sv.setLayoutParams(lp);
	}



	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case R.id.videocall_menu_back_to_dialer:
			if (!recordManager.isMuted())
				LinphoneManager.getInstance().sendStaticImage(true);
			finish();
			break;
		case R.id.videocall_menu_change_resolution:
			LinphoneManager.getInstance().changeResolution();
			rewriteChangeResolutionItem(item);
			resizeCapturePreview(mVideoCaptureView);
			break;
		case R.id.videocall_menu_terminate_call:
			LinphoneManager.getInstance().terminateCall();
			finish();
			break;
		case R.id.videocall_menu_toggle_camera:
			LinphoneManager.getInstance().toggleCameraMuting();
			rewriteToggleCameraItem(item);
			break;
		case R.id.videocall_menu_switch_camera:
			LinphoneManager.getInstance().switchCamera();
			resizeCapturePreview(mVideoCaptureView);
			break;
		default:
			Log.e(LinphoneManager.TAG, "Unknown menu item ["+item+"]");
			break;
		}

		return true;
	}


	@Override
	protected void onDestroy() {
		launched = false;
		super.onDestroy();
	}

	@Override
	protected void onPause() {
		Log.d(tag, "onPause VideoCallActivity");
		if (mWakeLock.isHeld())	mWakeLock.release();
		super.onPause();
	}
	
	
}