<?php
// News endpoint — serves from api_cache + custom pinned news from admin kb_facts

$cached = JarvisDB::query(
    'SELECT data, UNIX_TIMESTAMP(updated_at) as ts FROM api_cache WHERE cache_key=? LIMIT 1',
    ['news']
);

if ($cached && !empty($cached[0]['data'])) {
    $out = json_decode($cached[0]['data'], true);
    $out['cache_age_s'] = (int)(time() - (int)$cached[0]['ts']);
} else {
    $out = [
        'categories'  => [],
        'total'       => 0,
        'cache_age_s' => -1,
        'message'     => 'News feed warming up — available within 5 minutes.',
    ];
}

// Prepend custom/pinned news items added via admin portal
$custom = JarvisDB::query(
    "SELECT fact_key as title, fact_value as url, updated_at FROM kb_facts WHERE category='custom_news' ORDER BY id DESC"
);
if (!empty($custom)) {
    $pinned = array_map(fn($r) => [
        'title'     => $r['title'],
        'url'       => $r['url'] ?: null,
        'source'    => 'JARVIS',
        'published' => $r['updated_at'],
        'pinned'    => true,
    ], $custom);
    // Insert pinned as first category
    $out['categories'] = array_merge(['pinned' => $pinned], $out['categories'] ?? []);
}

echo json_encode($out);