Atom Stack

const STACK = 'sistebbins';
/*
  'simple': simple deck: clubs, diamonds, hearts, and spades from Ace to King
  'new': a new deck order: AH->KH, AC->KC, KD->AD, KS->AS
  'sistebbins': Si Stebbins stack
  'mnemonica': Mnemonica by Juan Tamariz
  'aronson': Aronson stack by Simon Aronson
  'memorandum': Memorandum by Woody Aragón
*/

function main() {
  ps.connect('*');
  ps.print('AtomStack');
  setTimeout(help, 2000);
}

let card = '';
let cardPosInStack = 0;
let mapping = [
    '1', '2', '3',
    '4', '5', '6',
    '7', '8', '9',
    '<', '0', '>'
];
function search() {
    if (card === '') return;
    let cardCode = parseInt(card);
    card = ''; // reset the input
    
    if (cardCode === 0) {
        help();
        return;
    }
    cardCode = (cardCode - 1) % 52; // 1st card has index 0

    let simpleCard = db.query('card', 'simple', cardCode);
    let cardInStack = db.query('card', STACK, simpleCard.name);
    cardPosInStack = cardInStack.pos;
    display();
}
function move(direction) {
    if (direction === '<') {
        cardPosInStack = cardPosInStack - 1;
        if (cardPosInStack < 0) {
            cardPosInStack = 51;
        }
    }
    if (direction === '>') {
        cardPosInStack = cardPosInStack + 1;
        if (cardPosInStack > 51) {
            cardPosInStack = 0;
        }
    }
    display();
}

let timeout = 0;
function onButtonClick(buttonId) {
    let key = mapping[buttonId];
    if (key === '<' || key === '>') {
        move(key);
        return;
    }
    card = card + key;
    ps.print(`<${card}>`);

    clearTimeout(timeout);
    if (strLen(card) === 2) {
        search();
    } else {
        timeout = setTimeout(search, 3000);
    }
}

function display() {
    const card1 = db.query('card', STACK, cardPosInStack);
    const card2 = db.query('card', STACK, cardPosInStack + 1);
    const card3 = db.query('card', STACK, cardPosInStack + 2);
    ps.print(`${card1.name} ${card2.name} ${card3.name}`);
}

function help() {
    ps.print('♣ 0 ♦13\n♥26 ♠39');
}

function onEvent(e) {
  if (e.type === 'click' && e.source === 'atom:button') {
    onButtonClick(parseInt(e.value));
  }
}