#!/usr/bin/env php
<?php
declare(strict_types=1);

/**
 * Rulare:
 *   php script.php --name=Daniel --amount=125.50
 */

function usage(): void {
    echo "Usage: php script.php --name=NAME --amount=NUMBER\n";
    exit(1);
}

$options = getopt("", ["name:", "amount:"]);
$name   = $options["name"]   ?? null;
$amount = $options["amount"] ?? null;

if ($name === null || $amount === null) {
    usage();
}

if (!is_numeric($amount)) {
    fwrite(STDERR, "Error: --amount must be numeric.\n");
    exit(1);
}

$amount = (float)$amount;
$vatRate = 0.19; // TVA 19%
$vat = round($amount * $vatRate, 2);
$total = round($amount + $vat, 2);

$result = [
    "name"   => $name,
    "amount" => $amount,
    "vat"    => $vat,
    "total"  => $total,
    "time"   => date("c"),
];

echo json_encode($result, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE) . PHP_EOL;

// scrie și un log local
$logLine = $result["time"] . " | {$name} | amount={$amount} | vat={$vat} | total={$total}\n";
file_put_contents(__DIR__ . "/script.log", $logLine, FILE_APPEND);