<?php

declare(strict_types=1);

use App\Core\View;

function app_env(string $key, ?string $default = null): ?string
{
    $value = $_ENV[$key] ?? getenv($key);

    if ($value === false || $value === null) {
        return $default;
    }

    return (string) $value;
}

function base_path(string $path = ''): string
{
    $base = dirname(__DIR__);

    return $path === '' ? $base : $base . '/' . ltrim($path, '/');
}

function view(string $template, array $data = []): void
{
    View::render($template, $data);
}

function e(?string $value): string
{
    return htmlspecialchars((string) $value, ENT_QUOTES, 'UTF-8');
}

function unit_label(?string $unit): string
{
    return match ((string) $unit) {
        'kg' => 'кг',
        'g' => 'г',
        'l' => 'л',
        'ml' => 'мл',
        'pcs' => 'шт.',
        default => (string) ($unit ?: 'ед.'),
    };
}

function money_label(mixed $value): string
{
    if ($value === null || $value === '') {
        return '';
    }

    $number = (float) $value;
    $formatted = abs($number - round($number)) < 0.005
        ? number_format($number, 0, ',', ' ')
        : number_format($number, 2, ',', ' ');

    return $formatted . ' руб.';
}