safedispatch-mobile/safeDispatch/src/main/java/com/safemobile/safedispatch/AlarmActivity.java

package com.safemobile.safedispatch;

import java.util.ArrayList;
import java.util.Locale;

import com.safemobile.adapters.AlertGridViewAdapter;
import com.safemobile.adapters.AlertGridViewAdapter.ViewHolder;

import com.safemobile.lib.Alarm;
import com.safemobile.lib.AppParams;
import com.safemobile.lib.OperationCodes;
import com.safemobile.lib.SM;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.res.Configuration;
import android.graphics.Typeface;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.view.View;
import android.widget.AdapterView;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;

public class AlarmActivity extends Activity {
	private Context context;
	private TabLayoutActivity parentTab;
	private ArrayList<Alarm> allAlarms = new ArrayList<>();
	private ArrayList<Boolean> acknowledged = new ArrayList<>();
	private AlertGridViewAdapter adapter;

	/* Visual resources */
	private GridView gridView;
	private View convertViewAlarm;

	private int ackPosition;
	private Bundle savedInstanceState;

	// Need handler for callbacks to the UI thread
	private final Handler myHandler = new Handler(Looper.getMainLooper());

	private static final String ALARM = "alarm";

	/**
	 * Called when the activity is first created.
	 */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		this.setSavedInstanceState(savedInstanceState);
		// get parentTab
		setParentTab((TabLayoutActivity) getParent());

		Locale locale = new Locale(AppParams.LANGUAGETMP);
		Locale.setDefault(locale);
		Configuration config = new Configuration();
		config.locale = locale;
		getBaseContext().getResources().updateConfiguration(config,
				getBaseContext().getResources().getDisplayMetrics());

		context = this;
		setContentView(R.layout.tabalarm);

		gridView = findViewById(R.id.gridViewAlarms);
		gridView.setNestedScrollingEnabled(true);
		adapter = new AlertGridViewAdapter(this, getAllAlarms(), context, acknowledged);
		gridView.setAdapter(adapter);

		gridView.setOnItemClickListener(onItemClickListener);

		// change tab header fontFace
		TextView textView1 = findViewById(R.id.textView1);
		textView1.setTypeface(Typeface.createFromAsset(getAssets(), "Sketch_Block.ttf"));
		textView1.setTextSize(24);

		getParentTab().setAlarmActivity(this);
	}

	@Override
	public void onBackPressed() {
		AlertDialog.Builder builder = new AlertDialog.Builder(this);
		builder.setMessage(getString(R.string.exit))
				.setCancelable(false)
				.setNeutralButton(getString(R.string.logout), (dialog, id) -> getParentTab().whenBackPressed(AppParams.ActivityResult.logout))
				.setPositiveButton(getString(R.string.ext), (dialog, id) -> getParentTab().whenBackPressed(AppParams.ActivityResult.exit))
				.setNegativeButton(getString(R.string.cancel), (dialog, id) -> dialog.cancel());
		AlertDialog alert = builder.create();
		alert.show();
	}

	@Override
	public void onPause() {
		super.onPause();
		SM.Debug("onPause");
	}

	@Override
	public void onResume() {
		super.onResume();
		if (!AppParams.DEMO)
			getAlarms();
		else {
			for (int i = getAllAlarms().size() - 1; i >= 0; i--) {
				Alarm alarm = getAllAlarms().get(i);
				if (alarm.ack == 1)
					getAllAlarms().remove(i);
			}

			acknowledged = new ArrayList<>();

			for (int i = 0; i < getAllAlarms().size(); i++)
				acknowledged.add(false);
			updateResultsInUi(ALARM);
		}
		SM.Debug("onResume");
	}


	private final OnItemClickListener onItemClickListener = new OnItemClickListener() {

		@Override
		public void onItemClick(AdapterView<?> arg0, View arg1, int position,
								long arg3) {
			SM.Debug(" ### CLICK Alarm : " + position);
			setConvertViewAlarm(arg1);
			// save position 
			ackPosition = position;
			if (!AppParams.DEMO) {
				getParentTab().getAlarms(AppParams.USERID);
				setACK(getAllAlarms().get(position).idx, getAllAlarms().get(position).type, getAllAlarms().get(position).unitName);
				acknowledged.set(position, true);
				updateResultsInUi(ALARM);
			} else {
				getAllAlarms().get(position).ack = 1;
				updateResultsInUi("else");
			}
		}

		// send ACK to AppServer
		private void setACK(int idx, int type, String unitName) {
			getParentTab().executeNetworkStuff(new String[]{OperationCodes.SendAlarmAcknoledge + "", idx + "", type + "", unitName});
		}
	};

	// Update Alarms received from AppServer
	public void updateAlarms(ArrayList<Alarm> list) {
		SM.Debug("## updateAlarms: " + list.size());
		setAllAlarms(list);
		acknowledged = new ArrayList<>();
		// set acknowledged based on alarm.ack value

		for (Alarm alarm : getAllAlarms()) {
			acknowledged.add(alarm.ack == 1);
			SM.Debug("ALARM", "SC_ID> " + alarm.sc_id + "   |  "
					+ (getParentTab().getVehHashByScId().get(alarm.sc_id) == null ? "null" : getParentTab().getVehHashByScId().get(alarm.sc_id).name));


			if (getParentTab().getVehHashByScId().get(alarm.sc_id) != null)
				alarm.unitName = getParentTab().getVehHashByScId().get(alarm.sc_id).name;
		}
		myHandler.post(updateResultsRUN);
	}

	// Create runnable for posting
	final Runnable updateResultsRUN = () -> updateResultsInUi(ALARM);

	private void updateResultsInUi(String param) {
		if (param.equals(ALARM)) {
			// set adapter
			adapter = new AlertGridViewAdapter(this, getAllAlarms(), context, acknowledged);
			int position = gridView.getFirstVisiblePosition();

			gridView.setAdapter(adapter);
			gridView.setSelection(position);
		} else {
			adapter.changeACK(ackPosition);
			SM.Debug("Set ACK: " + ackPosition + "  | " + (Boolean.TRUE.equals(acknowledged.get(ackPosition)) ? "true" : "false"));

			ViewHolder viewAlarm;
			viewAlarm = (ViewHolder) getConvertViewAlarm().getTag();

			switch (Boolean.TRUE.equals(acknowledged.get(ackPosition)) ? 1 : 0) {
				case 1:
					viewAlarm.imageViewAlert.setImageResource(R.drawable.alert_off);
					break;
				case 0:
					viewAlarm.imageViewAlert.setImageResource(R.drawable.siren);
					break;
				default:
					throw new IllegalStateException("Unexpected value: " + (Boolean.TRUE.equals(acknowledged.get(ackPosition)) ? 1 : 0));
			}
		}
	}

	// update ACK received from AppServer
	public void updateACK() {
		myHandler.post(updateAckRUN);
	}

	// Create runnable for posting
	final Runnable updateAckRUN = () -> {
		SM.Debug(" updateACK: ");
		updateResultsInUi("adapter");
	};

	// send to AppServer
	private void getAlarms() {
		getParentTab().executeNetworkStuff(new String[]{OperationCodes.GetAlarms + "", AppParams.USERID + ""});
	}

	public TabLayoutActivity getParentTab() {
		return parentTab;
	}

	public void setParentTab(TabLayoutActivity parentTab) {
		this.parentTab = parentTab;
	}

	public ArrayList<Alarm> getAllAlarms() {
		return allAlarms;
	}

	public void setAllAlarms(ArrayList<Alarm> allAlarms) {
		this.allAlarms = allAlarms;
	}

	public View getConvertViewAlarm() {
		return convertViewAlarm;
	}

	public void setConvertViewAlarm(View convertViewAlarm) {
		this.convertViewAlarm = convertViewAlarm;
	}

	public Bundle getSavedInstanceState() {
		return savedInstanceState;
	}

	public void setSavedInstanceState(Bundle savedInstanceState) {
		this.savedInstanceState = savedInstanceState;
	}
}