<?php

declare(strict_types=1);

function app_timezone(string $value): string
{
    $timezone = trim($value);
    return in_array($timezone, DateTimeZone::listIdentifiers(), true) ? $timezone : 'UTC';
}

function app_now(): string
{
    return gmdate('Y-m-d H:i:s');
}

function app_slug(string $value): string
{
    $slug = Web::instance()->slug(trim($value));
    return $slug !== '' ? $slug : 'article';
}

function app_date_fr(string $value): string
{
    static $formatter = null;

    $value = trim($value);
    if ($value === '') {
        return '';
    }

    try {
        $date = new DateTimeImmutable($value, new DateTimeZone('UTC'));
        $date = $date->setTimezone(new DateTimeZone(date_default_timezone_get()));

        if (!$formatter instanceof IntlDateFormatter) {
            $formatter = new IntlDateFormatter(
                'fr_FR',
                IntlDateFormatter::LONG,
                IntlDateFormatter::SHORT,
                date_default_timezone_get(),
                IntlDateFormatter::GREGORIAN,
                "d MMMM yyyy 'à' HH:mm"
            );
        }

        return (string) ($formatter->format($date) ?: $value);
    } catch (Throwable) {
        return $value;
    }
}

function app_error_meta(int $code): array
{
    return match ($code) {
        400 => ['title' => 'Requête invalide', 'message' => 'La requête est invalide.'],
        403 => ['title' => 'Accès refusé', 'message' => 'Tu n’as pas accès à cette page.'],
        404 => ['title' => 'Page introuvable', 'message' => 'La page est introuvable.'],
        default => ['title' => 'Erreur serveur', 'message' => 'Une erreur est survenue.'],
    };
}

function app_request_is_secure(): bool
{
    if (!empty($_SERVER['HTTPS']) && strtolower((string) $_SERVER['HTTPS']) !== 'off') {
        return true;
    }

    if (strtolower((string) ($_SERVER['REQUEST_SCHEME'] ?? '')) === 'https') {
        return true;
    }

    $forwardedProto = strtolower(trim((string) ($_SERVER['HTTP_X_FORWARDED_PROTO'] ?? '')));
    if ($forwardedProto !== '') {
        return explode(',', $forwardedProto)[0] === 'https';
    }

    return false;
}

function app_ensure_dir(string $path): void
{
    if (!is_dir($path)) {
        mkdir($path, Base::MODE, true);
    }
}