Metronome/app/src/main/java/tech/waelk/radioactive/metronome/SaveDialogActivity.java

/*
 * Copyright (c) 2019.
 * This file is part of Metronome.
 *
 *      Metronome 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 3 of the License, or
 *      (at your option) any later version.
 *
 *      Metronome 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 Metronome.  If not, see <http://www.gnu.org/licenses/>.
 */

package tech.waelk.radioactive.metronome;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import java.io.FileOutputStream;
import java.io.IOException;

public class SaveDialogActivity extends Activity {

	public final static String DATA_STORAGE_FILE_NAME = "presets";
	public final static String EMPTY_NAME_FLAG_INTENT_NAME = "empty_flag";
	private final static String LOG_TAG = "SaveDialogActivity";

	EditText editText;
	Button buttonOK;
	Button buttonCancel;
	Boolean success, emptyNameFlag;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		// Make us non-modal, so that others can receive touch events.
		getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL, WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL);

		// ...but notify us that it happened.
		getWindow().setFlags(WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH, WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH);
		//remove the title bar
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.activity_save_dialog);
		//fill the screen on the horizontal access
		//Grab the window of the dialog, and change the width
		WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
		Window window = getWindow();
		lp.copyFrom(window.getAttributes());
		//change size
		//lp.width = WindowManager.LayoutParams.MATCH_PARENT;
		lp.width = (int)(getResources().getDisplayMetrics().widthPixels*0.9);
		lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
		window.setAttributes(lp);
		//init
		final int beats = getIntent().getExtras().getInt(MetronomeActivity.DIALOG_SAVE_BEATS);
		final int bpm = getIntent().getExtras().getInt(MetronomeActivity.DIALOG_SAVE_BPM);
		final double beatSound = getIntent().getExtras().getDouble(MetronomeActivity.DIALOG_SAVE_BEAT_SOUND);
		final double sound = getIntent().getExtras().getDouble(MetronomeActivity.DIALOG_SAVE_SOUND);
		final String uniqueID = getIntent().getExtras().getString(MetronomeActivity.DIALOG_SAVE_ID);
		final String wave = getIntent().getExtras().getString(MetronomeActivity.DIALOG_SAVE_WAVE);
		editText = findViewById(R.id.editTextDialog);
		buttonOK = findViewById(R.id.buttonOK);
		buttonCancel = findViewById(R.id.buttonCancel);

		//assume write will work
		success = true;
		emptyNameFlag = false;

		//user clicked save, do so.
		buttonOK.setOnClickListener(v -> {
			//check for a valid name
			if (!editText.getText().toString().equals("") && !editText.getText().toString().contains(MiscUtils.separator + "")) {
				FileOutputStream fileOutputStream;
				String data, oldData;
				//check if the storage file exists, if not, create it
				if (!MiscUtils.fileExists(SaveDialogActivity.this, DATA_STORAGE_FILE_NAME)) {
					try {
						fileOutputStream = openFileOutput(DATA_STORAGE_FILE_NAME, Context.MODE_PRIVATE);
						fileOutputStream.write("".getBytes());
						fileOutputStream.close();
					} catch (IOException e) {
						Log.w(LOG_TAG, "failed to read!\n" + e);
					}
				}
				data = MiscUtils.prepareForStorage(editText.getText().toString(), beats, bpm, MetronomeActivity.AUTO_SAVE_FLAG_FALSE, beatSound, sound, uniqueID, wave);
				try {
					//save the data
					//read the old data
					oldData = MiscUtils.readSavedData(SaveDialogActivity.this);
					fileOutputStream = openFileOutput(DATA_STORAGE_FILE_NAME, Context.MODE_PRIVATE);
					fileOutputStream.write((oldData + data).getBytes());
					fileOutputStream.close();
				} catch (IOException ex) {
					Log.w(LOG_TAG, "failed to save!\n" + ex);
					Toast.makeText(SaveDialogActivity.this, getResources().getText(R.string.save_fail_toast), Toast.LENGTH_SHORT).show();
					//failed to save!!
					success = false;
					emptyNameFlag = true;
				}


				//set the flag of the save
				SharedPreferences preferences = getSharedPreferences(MetronomeActivity.PREFS_NAME, 0);
				SharedPreferences.Editor editor = preferences.edit();
				editor.putBoolean(MetronomeActivity.DB_SAVE_EXISTS, success);
				//commit
				editor.apply();
				//set the result
				Intent resultIntent = new Intent();
				resultIntent.putExtra(EMPTY_NAME_FLAG_INTENT_NAME, emptyNameFlag);
				setResult(Activity.RESULT_OK, resultIntent);

				//finish the activity
				finish();
			} else if (editText.getText().toString().contains(MiscUtils.separator + "") || editText.getText().toString().contains(MiscUtils.newline + ""))
				Toast.makeText(SaveDialogActivity.this, "Name can't have:\n'" + MiscUtils.separator + "'\n" + "Or:\n" + MiscUtils.newline, Toast.LENGTH_SHORT).show();
			else
				Toast.makeText(SaveDialogActivity.this, "Empty name!", Toast.LENGTH_SHORT).show();
		});

		//user clicked cancel, do so
		buttonCancel.setOnClickListener(view -> {
			//set the result
			Intent resultIntent = new Intent();
			resultIntent.putExtra(EMPTY_NAME_FLAG_INTENT_NAME, true);
			setResult(Activity.RESULT_CANCELED, resultIntent);
			//finish the activity
			finish();
		});
	}

	@Override
	public boolean onTouchEvent(MotionEvent event) {
		// If we've received a touch notification that the user has touched
		// outside the app, finish the activity.
		if (MotionEvent.ACTION_OUTSIDE == event.getAction()) {
			//set the result
			Intent resultIntent = new Intent();
			resultIntent.putExtra(EMPTY_NAME_FLAG_INTENT_NAME, true);
			setResult(Activity.RESULT_CANCELED, resultIntent);
			//finish the activity
			finish();
			return true;
		}

		// Delegate everything else to Activity.
		return super.onTouchEvent(event);
	}

}