03. Gaming Store

<?php
$startMoney = floatval(readline());
$currentMoney = $startMoney;

$game = readline();
$outOfMoney = false;

while ($game !== ("Game Time")) {
    $gamePrice = 0;
    $isValid = true;
    switch ($game) {
        case "OutFall 4":
            $gamePrice = 39.99;
            break;
        case "CS: OG":
            $gamePrice = 15.99;
            break;
        case "Zplinter Zell":
            $gamePrice = 19.99;
            break;
        case "Honored 2":
            $gamePrice = 59.99;
            break;
        case "RoverWatch":
            $gamePrice = 29.99;
            break;
        case "RoverWatch Origins Edition":
            $gamePrice = 39.99;
            break;
        default:
            $isValid = false;
            echo "Not Found" . PHP_EOL;
            break;
    }
    if ($isValid) {
        if ($currentMoney - $gamePrice >= 0) {
            $currentMoney -= $gamePrice;
            echo "Bought $game" . PHP_EOL;

            if ($currentMoney == 0) {
                echo "Out of money!" . PHP_EOL;
                $outOfMoney = true;
                break;
            }
        } else {
            echo "Too Expensive" . PHP_EOL;
        }
    }

    $game = readline();
}

if (!$outOfMoney) {
    $totalSpend = $startMoney - $currentMoney;
    printf("Total spent: $%.2f. Remaining: $%.2f" . PHP_EOL, $totalSpend, $currentMoney);
}