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/* Copyright (C) Alexandre Silva "Kelpy" - All Rights Reserved
 * Unauthorized copying of this file, via any medium is strictly prohibited
 * Proprietary and confidential
 * Written by Alexandre Silva <alexandresilva.coding@gmail.com>, 10 2022
 */

package com.mrkelpy.isle.elements;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageButton;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import com.mrkelpy.isle.R;
import com.mrkelpy.isle.elements.abstraction.AbstractConstraintLayout;
import com.mrkelpy.isle.utils.AppState;
import com.mrkelpy.isle.utils.DrawableUtils;

/**
 * This class implements a main constraint where all the app elements will be contained in, allowing for full,
 * free control over any element interactions during the app lifecycle.
 */
public class MainAppConstraintLayout extends AbstractConstraintLayout {

    /**
     * The current application state, can be enabled or disabled. <br>
     * If it isn't determined, it'll be off by default.
     */
    private final AppState state = this.determineAppState();

    /**
     * The logoButton that controls the current app state. This is the most important element
     * of the app, and is controlled by the main app constraint.
     */
    private ImageButton logoButton;

    public MainAppConstraintLayout(@NonNull Context context) {
        super(context);
        this.init(context);
    }

    public MainAppConstraintLayout(@NonNull Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        this.init(context);
    }

    public MainAppConstraintLayout(@NonNull Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        this.init(context);
    }

    /**
     * Since there is more than one constructor in the class, this method
     * performs every necessary actions that are common to all constructors. <br>
     * Loads up the logo button and adds the elements from the StateConstraintLayout matching the app state.
     * @param context The application context.
     */
    private void init(Context context) {
        this.logoButton = this.loadLogoButton(context);
    }

    /**
     * Loads up the logo button accordingly to the current app state. <br>
     * If the app is activated, the button should display the logo, and be located well above the
     * screen center. <br>
     * If not, it should display the turn-on picture, and be located slightly above the center.
     * @param context The application context.
     */
    private ImageButton loadLogoButton(Context context) {
        ImageButton button = (ImageButton) this.findViewById(R.id.logo_button);
        Drawable icon = DrawableUtils.get(context, this.state == AppState.ON ? "icon.isle" : "icon.off");
        button.setImageDrawable(icon);
        return button;
    }

    /**
     * Determines the app's state based on saved file settings, so it can boot back up
     * and stay active even in the case of a device restart.
     */
    private AppState determineAppState() {
        return AppState.OFF;
    }
}