Card Game

function countCards(input) {
    let players = new Map();
    for (let string of input) {
        let parts = string.split(': ');
        let playerName = parts.shift();
        let cards = parts[0].split(', ');
        if (players.has(playerName)) {
            let ownedCards = players.get(playerName);
            cards.push(...ownedCards);
        }

        players.set(playerName, cards);
    }

    for (let playerName of players.keys()) {
        let cardsToBeFiltered = players.get(playerName);
        let filteredCards = cardsToBeFiltered.filter((el, i) => {
            return cardsToBeFiltered.indexOf(el) === i
        });
        players.set(playerName, filteredCards);
    }

    let power = new Map([['J', 11], ['Q', 12], ['K', 13], ['A', 14]]);
    let type = new Map([['S', 4], ['H', 3], ['D', 2], ['C', 1]]);

    for (let playerName of players.keys()) {
        let allCards = players.get(playerName);
        let countOfCards = allCards
            .map(a => {
                if (isNaN(+a[0])) {
                    return power.get(a[0]) * type.get(a[1]);
                } else {
                    if (a.length === 2) {
                        return +a[0] * type.get(a[1]);
                    } else {
                        return 10 * type.get(a[2]);
                    }
                }
            })
            .reduce((a, b) => a + b);

        players.set(playerName, countOfCards);
    }

    for (let [playerName, cardsCount] of players.entries()) {
        console.log(`${playerName}: ${cardsCount}`);
    }
}