import Toybox.Lang;
import Toybox.WatchUi;
import Toybox.Application;
import Toybox.Lang;
import Toybox.Timer;
import Toybox.System;

class MetronomeApp ... {

    function getInitialView() ... {
        var view = new MetronomeView();
        return [view, new MetronomeDelegate(view)]
    }

}

class MetronomeView extends WatchUi.View {
    private var timer as Timer;
    private const updateInterval = 1000; // 1000 ms = 1 second
    private var vibrating as Boolean;

    private const vibeData = [
        new Attention.VibeProfile(75, 50),
        new Attention.VibeProfile(0, 950),
        new Attention.VibeProfile(50, 50),
        new Attention.VibeProfile(0, 950),
        new Attention.VibeProfile(50, 50),
        new Attention.VibeProfile(0, 950),
        new Attention.VibeProfile(50, 50),
        new Attention.VibeProfile(0, 950),
    ];

    function initialize() {
        timer = new Timer.Timer();
        myTimer.start(method(:timerCallback), updateInterval, true);
    }

    function timerCallback() as Void {
        WatchUi.requestUpdate(); // triggers a call to onUpdate()
    }

    function onUpdate() {
        if (vibrating) {
            Attention.vibrate(vibeData);
        }

        // render UI
        // ...
    }

    function startVibes() {
        vibrating = true;
    }

    function stopVibes() {
        vibrating = false;
    }
}

class MetronomeDelegate extends WatchUi.BehaviorDelegate {
    var metronomeView as MetronomeView;
    function initialize(view) {
        BehaviorDelegate.initialize();
        metronomeView = view;
    }

    function onSwipe(swipeEvent) {
        var direction = swipeEvent.getDirection();
        System.println(direction);
        if (direction == 0) {
            WatchUi.pushView(new Rez.Menus.MainMenu(), new MetronomeMenuDelegate(), WatchUi.SLIDE_UP);
        } else if (direction == 2) {
            metronomeView.startVibes();
        }
        return true;
    }

    function onKey(keyEvent) {
        var key = keyEvent.getKey();
        System.println(key);
        if (key == 4) {
            metronomeView.stopVibes();
            return true;
        }
        else {
            metronomeView.startVibes();
            return false;
        }
    }
}