shoppingCart

function solve() {
    let baughtItems = [];
    let totalSum = 0;
    let allBtns = document.querySelectorAll(".add-product"); // all 'add' buttons
    let textArea = document.getElementsByTagName("textarea")[0];

    let checkOutBtn = document.querySelector(".checkout");
    checkOutBtn.addEventListener("click", checkOut);

    for (let btn of allBtns) {
        btn.addEventListener("click", addProduct);
    }

    function addProduct(event) {
        let parentDivAllCh = event.target.parentElement.parentElement.children;
        let price = Number(
            parentDivAllCh[parentDivAllCh.length - 1].textContent
        );
        totalSum += price;

        let prodName = parentDivAllCh[1].children[0].textContent;
        if (!baughtItems.includes(prodName)) {
            baughtItems.push(prodName);
        }

        let curentText = `Added ${prodName} for ${price.toFixed(
            2
        )} to the cart.\n`;
        textArea.value += curentText;
    }

    function checkOut(event) {
        let baughtItemsAsString = baughtItems.join(", ");

        textArea.value += `You bought ${baughtItemsAsString} for ${totalSum.toFixed(
            2
        )}.`;

        event.target.disabled = true;

        for (let btn of allBtns) {
            btn.disabled = true;
        }
    }
}