index-soutien/includes/cache.php

<?php

require_once __DIR__ . '/config.php';

function getSoutenirContent(string $lang = 'fr'): array {
    $cacheFile = CACHE_DIR . "/content.{$lang}.json";

    // Serve cache if fresh
    if (file_exists($cacheFile) && (time() - filemtime($cacheFile)) < CACHE_TTL) {
        return json_decode(file_get_contents($cacheFile), true) ?: [];
    }

    // Fetch from Kirby API
    $url = KIRBY_API_URL . '?lang=' . urlencode($lang);
    if (SOUTIEN_API_TOKEN) {
        $url .= '&token=' . urlencode(SOUTIEN_API_TOKEN);
    }

    $context = stream_context_create([
        'http' => [
            'timeout' => 5,
            'header' => "Referer: https://soutenir.index.ngo\r\n",
        ],
    ]);

    $response = @file_get_contents($url, false, $context);

    if ($response !== false) {
        $data = json_decode($response, true);
        if ($data && !isset($data['error'])) {
            @file_put_contents($cacheFile, $response, LOCK_EX);
            return $data;
        }
    }

    // Fallback: serve stale cache rather than nothing
    if (file_exists($cacheFile)) {
        return json_decode(file_get_contents($cacheFile), true) ?: [];
    }

    return [];
}