03. New House

function newHouse(input) {
    let flower = input[0];
    let quantity = Number(input[1]);
    let budget = Number(input[2]);
    let sum = 0;

    if (flower === "Roses") {
        sum = quantity * 5.00;
        if (quantity > 80) {
            sum *= 0.90;
        }
    } else if (flower === "Dahlias") {
        sum = quantity * 3.80;
        if (quantity > 90) {
            sum *= 0.85;
        }
    } else if (flower === "Tulips") {
        sum = quantity * 2.80;
        if (quantity > 80) {
            sum *= 0.85;
        }
    } else if (flower === "Narcissus") {
        sum = quantity * 3.00;
        if (quantity < 120) {
            sum *= 1.15;
        }
    } else if (flower === "Gladiolus") {
        sum = quantity * 2.50;
        if (quantity < 80) {
            sum *= 1.20;
        }
    }

    if (sum > budget) {
        console.log(`Not enough money, you need ${(sum - budget).toFixed(2)} leva more.`);
    } else {
        console.log(`Hey, you have a great garden with ${quantity} ${flower} and ${(budget - sum).toFixed(2)} leva left.`);
    }
}

РЕШЕНИЕ СЪС SWITCH:

function newHouse(input) {
    let flower = input[0];
    let quantity = Number(input[1]);
    let budget = Number(input[2]);
    let sum = 0;

    switch (flower) {
        case "Roses":
            sum = quantity * 5.00;
            if (quantity > 80) {
                sum *= 0.90;
            }
            break;

        case "Dahlias":
            sum = quantity * 3.80;
            if (quantity > 90) {
                sum *= 0.85;
            }
            break;

        case "Tulips":
            sum = quantity * 2.80;
            if (quantity > 80) {
                sum *= 0.85;
            }
            break;

        case "Narcissus":
            sum = quantity * 3.00;
            if (quantity < 120) {
                sum *= 1.15;
            }
            break;

        case "Gladiolus":
            sum = quantity * 2.50;
            if (quantity < 80) {
                sum *= 1.20;
            }
            break;
    }

    if (sum > budget) {
        console.log(`Not enough money, you need ${(sum - budget).toFixed(2)} leva more.`);
    } else {
        console.log(`Hey, you have a great garden with ${quantity} ${flower} and ${(budget - sum).toFixed(2)} leva left.`);
    }
}

РЕШЕНИЕ С ТЕРНАРЕН ОПЕРАТОР:

function newHouse(input) {
    let flower = input[0];
    let quantity = Number(input[1]);
    let budget = Number(input[2]);

    let sum = (flower === "Roses" ? 5.00 * (quantity > 80 ? 0.90 : 1) :
               flower === "Dahlias" ? 3.80 * (quantity > 90 ? 0.85 : 1) :
               flower === "Tulips" ? 2.80 * (quantity > 80 ? 0.85 : 1) :
               flower === "Narcissus" ? 3.00 * (quantity < 120 ? 1.15 : 1) :
               flower === "Gladiolus" ? 2.50 * (quantity < 80 ? 1.20 : 1) : 0) * quantity;

    console.log(sum > budget ? `Not enough money, you need ${(sum - budget).toFixed(2)} leva more.` :
        `Hey, you have a great garden with ${quantity} ${flower} and ${(budget - sum).toFixed(2)} leva left.`);
}

ИЛИ С ИЗВАЖДАНЕ ОТ БЮДЖЕТА:

function newHouse(input) {
    let flower = input[0];
    let quantity = Number(input[1]);
    let budget = Number(input[2]);

    budget -= (flower === "Roses" ? 5.00 * (quantity > 80 ? 0.90 : 1) :
               flower === "Dahlias" ? 3.80 * (quantity > 90 ? 0.85 : 1) :
               flower === "Tulips" ? 2.80 * (quantity > 80 ? 0.85 : 1) :
               flower === "Narcissus" ? 3.00 * (quantity < 120 ? 1.15 : 1) :
               flower === "Gladiolus" ? 2.50 * (quantity < 80 ? 1.20 : 1) : 0) * quantity;

    console.log(budget < 0 ? `Not enough money, you need ${Math.abs(budget).toFixed(2)} leva more.` :
        `Hey, you have a great garden with ${quantity} ${flower} and ${budget.toFixed(2)} leva left.`);
}