Add admin health page and printable 24h export

- add a protected health.php page for config, XMLTV and M3U diagnostics
- add shared admin/config helpers for authenticated internal tools
- add a styled 24h export page designed for PDF/print output
- add browser-side PNG export for the daily schedule
- update README with the new admin tools

README.md

@@ -43,6 +43,8 @@ This demo runs with sample XMLTV feeds to showcase the interface.
 - ⭐ **Favorites** — pin channels to the top of the grid, persisted in localStorage
 - 🌍 **i18n** — auto-detects browser language, supports EN / FR / ES (add your own in `locales/`)
 - ⚙️ **Re-editable setup** — protected by an admin key, no SSH required to update config
+- 🩺 **Admin health page** — check config, XMLTV, M3U, response times, and metadata coverage
+- 🖨️ **24h printable export** — generate a polished daily schedule for PDF/print and PNG export
 - 🔔 **Update notifications** — a badge appears in the topbar when a new release is available on GitHub
 - 🔄 **Auto-reload** EPG every 30 minutes
 - 0️⃣ **Zero build tooling** — vanilla PHP/JS/CSS, with bundled local assets
@@ -225,6 +227,13 @@ GridTV detects the missing config and automatically redirects you to the setup p
 
 Once submitted, `config.json` is created on the server. **The setup page becomes inaccessible until you re-enter your admin key.**
 
+Admin tools are available here once unlocked with the same key:
+
+```text
+http://guide.your-domain.com/health.php
+http://guide.your-domain.com/export.php
+```
+
 ---
 
 <details>
@@ -280,9 +289,10 @@ nano /var/www/gridtv/config.json
 gridtv/
 ├── index.php            # Entry point
 ├── setup.php            # Setup + re-configuration (admin key protected)
+├── health.php           # Admin diagnostics page
+├── export.php           # 24h printable export (PDF/image friendly)
 ├── proxy.php            # HTTP→HTTPS stream proxy
 ├── version.json         # Current version (used for update check)
-├── config.example.json  # Config template
 ├── Dockerfile
 ├── docker-compose.yml
 ├── .gitignore           # config.json excluded
@@ -485,9 +495,9 @@ GNU Affero General Public License v3.0 (AGPLv3)
 - **i18n** — EN / FR / ES with browser auto-detection, extensible via locales/
 - **Favorites** — pin channels to the top of the grid (localStorage)
 - **Setup re-editable** — protected by an admin key, auto-generated on first setup
+- **Admin health page** — diagnostics for config, XMLTV, M3U, timing, and metadata coverage
 - **Update notifications** — topbar badge links to latest GitHub release
 
 ### 🔜 Coming soon
 - **Dark/Light auto mode** — follow system preference when using the default theme
-- **Grid export** — export today's schedule as PDF or image
 </details>

export.php

@@ -0,0 +1,246 @@
+<?php
+require_once __DIR__ . '/src/lib/admin.php';
+
+$config = gridtv_load_config();
+gridtv_require_admin($config, 'Export');
+[$locale, $L] = gridtv_load_locale($config);
+
+function export_parse_xmltv_programmes(string $xml, string $target_day): array {
+    libxml_use_internal_errors(true);
+    $dom = new DOMDocument();
+    if (!$dom->loadXML($xml, LIBXML_NOERROR | LIBXML_NOWARNING)) {
+        return ['channels' => [], 'programmes' => [], 'error' => 'Invalid XMLTV response'];
+    }
+
+    $xp = new DOMXPath($dom);
+    $channels = [];
+    foreach ($xp->query('/tv/channel') as $channel) {
+        $id = $channel->getAttribute('id');
+        $name = trim($xp->evaluate('string(display-name[1])', $channel));
+        $icon = trim($xp->evaluate('string(icon/@src)', $channel));
+        $channels[$id] = ['id' => $id, 'name' => $name ?: $id, 'icon' => $icon];
+    }
+
+    $start_day = new DateTimeImmutable($target_day . ' 00:00:00');
+    $end_day = $start_day->modify('+1 day');
+    $rows = [];
+
+    foreach ($xp->query('/tv/programme') as $programme) {
+        $channel_id = $programme->getAttribute('channel');
+        $start = DateTimeImmutable::createFromFormat('YmdHis O', $programme->getAttribute('start'));
+        $stop = DateTimeImmutable::createFromFormat('YmdHis O', $programme->getAttribute('stop'));
+        if (!$start || !$stop) continue;
+        if ($stop <= $start_day || $start >= $end_day) continue;
+
+        $title = trim($xp->evaluate('string(title)', $programme));
+        $subtitle = trim($xp->evaluate('string(sub-title)', $programme));
+        $desc = trim($xp->evaluate('string(desc)', $programme));
+        $rating = trim($xp->evaluate('string(rating/value)', $programme));
+
+        $cats = [];
+        foreach ($xp->query('category', $programme) as $cat) {
+            $value = trim($cat->textContent);
+            if ($value !== '') $cats[strtolower($value)] = $value;
+        }
+
+        $rows[$channel_id][] = [
+            'start' => $start,
+            'stop' => $stop,
+            'title' => $title,
+            'subtitle' => $subtitle,
+            'desc' => $desc,
+            'rating' => $rating,
+            'categories' => array_values($cats),
+        ];
+    }
+
+    uasort($channels, static function ($a, $b) {
+        preg_match('/^\d+/', $a['name'], $ma);
+        preg_match('/^\d+/', $b['name'], $mb);
+        $na = isset($ma[0]) ? (int) $ma[0] : 9999;
+        $nb = isset($mb[0]) ? (int) $mb[0] : 9999;
+        return $na <=> $nb ?: strcmp($a['name'], $b['name']);
+    });
+
+    foreach ($rows as &$programmes) {
+        usort($programmes, static fn($a, $b) => $a['start'] <=> $b['start']);
+    }
+
+    return ['channels' => $channels, 'programmes' => $rows, 'error' => ''];
+}
+
+$sources = array_values($config['epg_sources'] ?? []);
+$source_index = max(0, min((int) ($_GET['source'] ?? 0), max(count($sources) - 1, 0)));
+$source = $sources[$source_index] ?? null;
+$target_day = preg_match('/^\d{4}-\d{2}-\d{2}$/', (string) ($_GET['day'] ?? '')) ? (string) $_GET['day'] : (new DateTimeImmutable('today'))->format('Y-m-d');
+
+$fetch = $source ? gridtv_fetch_url((string) $source['epg_url'], 25) : ['ok' => false, 'error' => 'No source configured', 'body' => ''];
+$parsed = $fetch['ok'] ? export_parse_xmltv_programmes($fetch['body'], $target_day) : ['channels' => [], 'programmes' => [], 'error' => $fetch['error'] ?: 'Unable to fetch XMLTV'];
+$print_channels = [];
+foreach ($parsed['channels'] as $channel_id => $channel) {
+    if (!empty($parsed['programmes'][$channel_id])) {
+        $print_channels[$channel_id] = $channel;
+    }
+}
+$day_label = (new DateTimeImmutable($target_day))->format('l d F Y');
+?><!DOCTYPE html>
+<html lang="<?= htmlspecialchars($locale) ?>">
+<head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<title>GridTV — Export 24h</title>
+<link rel="stylesheet" href="/assets/fonts/fonts.css">
+<script src="/assets/vendor/html2canvas.min.js"></script>
+<style>
+:root{--paper:#f4ecda;--ink:#22201b;--ink-soft:#675f52;--accent:#aa4231;--accent-2:#264653;--line:#d3c5ab;--stamp:#d8b24a}
+*{box-sizing:border-box}body{margin:0;font-family:'Barlow Condensed',sans-serif;background:linear-gradient(180deg,#1f2125 0,#121317 100%);color:#f7f4ee}
+.page{max-width:1380px;margin:0 auto;padding:26px 18px 40px}
+.toolbar{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap;margin-bottom:18px}
+.heading{max-width:760px}.heading h1{margin:0 0 6px;font-size:34px;letter-spacing:.06em;text-transform:uppercase}.heading p{margin:0;color:#bcb7ad;font-size:14px;line-height:1.5}
+.controls{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
+.controls a,.controls button,.controls select,.controls input{height:42px;border:none}
+.controls a,.controls button{display:inline-flex;align-items:center;justify-content:center;padding:0 14px;background:#ebd58a;color:#1f1d18;text-decoration:none;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;cursor:pointer}
+.controls .ghost{background:#262a31;color:#f7f4ee;border:1px solid #3c4450}
+.controls select,.controls input{padding:0 12px;background:#262a31;color:#fff;border:1px solid #3c4450;font-family:'Share Tech Mono',monospace}
+.sheet-wrap{overflow:auto;padding:8px 0}
+.sheet{width:1120px;margin:0 auto;background:var(--paper);color:var(--ink);padding:30px 34px 36px;box-shadow:0 26px 70px rgba(0,0,0,.45);border:10px solid #f8f2e7;position:relative}
+.sheet::before{content:'';position:absolute;inset:14px;border:1px solid rgba(38,70,83,.18);pointer-events:none}
+.sheet-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;border-bottom:3px solid var(--accent);padding-bottom:16px;margin-bottom:18px}
+.sheet-title{font-family:'IM Fell English',serif;font-size:44px;line-height:1.05;letter-spacing:.01em}
+.sheet-sub{font-family:'Share Tech Mono',monospace;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-2)}
+.sheet-meta{text-align:right}.sheet-meta .group{font-size:22px;font-weight:700}.sheet-meta .date{font-size:14px;color:var(--ink-soft)}
+.legend{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
+.legend span{padding:6px 10px;border:1px solid var(--line);font-family:'Share Tech Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase}
+.table{display:grid;gap:12px}
+.row{display:grid;grid-template-columns:170px 1fr;gap:14px;align-items:stretch}
+.channel{border-top:2px solid var(--accent-2);padding-top:8px}
+.channel-top{display:flex;gap:10px;align-items:center}
+.channel img{width:42px;height:42px;object-fit:contain;background:#fff;border:1px solid var(--line);padding:4px}
+.channel-name{font-size:22px;font-weight:700;line-height:1.05}
+.timeline{display:grid;grid-template-columns:repeat(24,minmax(0,1fr));border-top:2px solid var(--accent-2);position:relative;min-height:112px}
+.hour{border-left:1px dashed var(--line);padding:8px 7px 10px 10px}
+.hour:first-child{border-left:none}
+.hour-label{font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px}
+.item{display:block;padding:8px 8px 9px;background:rgba(170,66,49,.08);border-left:3px solid var(--accent);margin-bottom:7px}
+.item.tight{padding:6px 7px}
+.item-title{font-size:14px;font-weight:700;line-height:1.1}
+.item-meta{font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:.03em;color:var(--ink-soft);margin-top:4px}
+.item-sub{font-size:11px;color:var(--ink-soft);margin-top:3px;line-height:1.2}
+.empty{color:var(--ink-soft);font-style:italic;font-size:12px;padding-top:24px}
+.note{margin-top:16px;font-size:12px;color:var(--ink-soft);text-align:right}
+@media print{body{background:#fff}.page{padding:0}.toolbar{display:none}.sheet{box-shadow:none;border:none;width:auto;margin:0}.sheet-wrap{overflow:visible}}
+@media (max-width:1200px){.sheet{transform-origin:top center}}
+</style>
+</head>
+<body>
+<div class="page">
+  <div class="toolbar">
+    <div class="heading">
+      <h1>Export 24h</h1>
+      <p>Version “programme télé” pensée pour être imprimée proprement en PDF, ou exportée en image pour l’envoyer facilement à quelqu’un.</p>
+    </div>
+    <div class="controls">
+      <form method="GET" style="display:flex;gap:10px;flex-wrap:wrap">
+        <select name="source">
+<?php foreach ($sources as $i => $src): ?>
+          <option value="<?= $i ?>"<?= $i === $source_index ? ' selected' : '' ?>><?= htmlspecialchars($src['name']) ?></option>
+<?php endforeach; ?>
+        </select>
+        <input type="date" name="day" value="<?= htmlspecialchars($target_day) ?>">
+        <button type="submit" class="ghost">Refresh</button>
+      </form>
+      <button type="button" onclick="window.print()">PDF / Print</button>
+      <button type="button" class="ghost" onclick="downloadImage()">Image</button>
+      <a href="/health.php" class="ghost">Health</a>
+      <a href="/index.php" class="ghost">Guide</a>
+    </div>
+  </div>
+
+  <div class="sheet-wrap">
+    <div class="sheet" id="exportSheet">
+      <div class="sheet-head">
+        <div>
+          <div class="sheet-sub">TV Guide · 24 hours · Printable edition</div>
+          <div class="sheet-title">Le programme télé de la journée</div>
+        </div>
+        <div class="sheet-meta">
+          <div class="group"><?= htmlspecialchars($config['group_name'] ?? 'GridTV') ?></div>
+          <div class="date"><?= htmlspecialchars($day_label) ?> · <?= htmlspecialchars($source['name'] ?? 'Source') ?></div>
+        </div>
+      </div>
+
+      <div class="legend">
+        <span>24h view</span>
+        <span><?= count($print_channels) ?> channel(s)</span>
+        <span>Generated from XMLTV</span>
+      </div>
+
+<?php if (!$fetch['ok'] || $parsed['error']): ?>
+      <div class="empty">Impossible de générer la feuille: <?= htmlspecialchars($parsed['error'] ?: ($fetch['error'] ?? 'Unknown error')) ?></div>
+<?php elseif (!$print_channels): ?>
+      <div class="empty">Aucun programme trouvé pour cette journée.</div>
+<?php else: ?>
+      <div class="table">
+<?php foreach ($print_channels as $channel_id => $channel): ?>
+        <div class="row">
+          <div class="channel">
+            <div class="channel-top">
+<?php if ($channel['icon']): ?><img src="<?= htmlspecialchars($channel['icon']) ?>" alt=""><?php endif; ?>
+              <div class="channel-name"><?= htmlspecialchars($channel['name']) ?></div>
+            </div>
+          </div>
+          <div class="timeline">
+<?php
+for ($hour = 0; $hour < 24; $hour++):
+    $hour_start = new DateTimeImmutable($target_day . sprintf(' %02d:00:00', $hour));
+    $hour_end = $hour_start->modify('+1 hour');
+    $items = [];
+    foreach ($parsed['programmes'][$channel_id] as $programme) {
+        if ($programme['stop'] <= $hour_start || $programme['start'] >= $hour_end) continue;
+        $items[] = $programme;
+    }
+?>
+            <div class="hour">
+              <div class="hour-label"><?= sprintf('%02dh', $hour) ?></div>
+<?php if (!$items): ?>
+              <div class="empty">—</div>
+<?php else: ?>
+<?php foreach ($items as $programme): ?>
+<?php
+$meta = $programme['start']->format('H:i') . ' - ' . $programme['stop']->format('H:i');
+if ($programme['rating']) $meta .= ' · ' . $programme['rating'];
+$cats = $programme['categories'] ? implode(' · ', $programme['categories']) : '';
+?>
+              <div class="item<?= strlen($programme['title']) > 28 ? ' tight' : '' ?>">
+                <div class="item-title"><?= htmlspecialchars($programme['title']) ?></div>
+<?php if ($programme['subtitle']): ?><div class="item-sub"><?= htmlspecialchars($programme['subtitle']) ?></div><?php endif; ?>
+                <div class="item-meta"><?= htmlspecialchars($meta) ?></div>
+<?php if ($cats): ?><div class="item-sub"><?= htmlspecialchars($cats) ?></div><?php endif; ?>
+              </div>
+<?php endforeach; ?>
+<?php endif; ?>
+            </div>
+<?php endfor; ?>
+          </div>
+        </div>
+<?php endforeach; ?>
+      </div>
+      <div class="note">Astuce: “PDF / Print” donne un export A4/PDF propre. “Image” fabrique un PNG de la feuille affichée.</div>
+<?php endif; ?>
+    </div>
+  </div>
+</div>
+
+<script>
+async function downloadImage() {
+  const sheet = document.getElementById('exportSheet');
+  if (!sheet || typeof html2canvas !== 'function') return;
+  const canvas = await html2canvas(sheet, {backgroundColor: '#f4ecda', scale: 2, useCORS: true});
+  const link = document.createElement('a');
+  link.href = canvas.toDataURL('image/png');
+  link.download = 'gridtv-24h-<?= htmlspecialchars($target_day) ?>.png';
+  link.click();
+}
+</script>
+</body>
+</html>

health.php

@@ -0,0 +1,274 @@
+<?php
+require_once __DIR__ . '/src/lib/admin.php';
+
+$config = gridtv_load_config();
+gridtv_require_admin($config, 'Health');
+[$locale, $L] = gridtv_load_locale($config);
+
+function health_status_class(bool $ok): string {
+    return $ok ? 'ok' : 'ko';
+}
+
+function health_status_label(bool $ok): string {
+    return $ok ? 'OK' : 'Issue';
+}
+
+function health_parse_xmltv(string $xml): array {
+    if ($xml === '') {
+        return ['ok' => false, 'error' => 'Empty response'];
+    }
+
+    libxml_use_internal_errors(true);
+    $dom = new DOMDocument();
+    $loaded = $dom->loadXML($xml, LIBXML_NOERROR | LIBXML_NOWARNING);
+    $errors = array_map(static fn($e) => trim($e->message), libxml_get_errors());
+    libxml_clear_errors();
+
+    if (!$loaded) {
+        return ['ok' => false, 'error' => $errors[0] ?? 'Invalid XML'];
+    }
+
+    $xp = new DOMXPath($dom);
+    $programmes = $xp->query('/tv/programme');
+    $channels = $xp->query('/tv/channel');
+    $categories = $xp->query('/tv/programme/category');
+    $subtitles = $xp->query('/tv/programme/sub-title');
+    $ratings = $xp->query('/tv/programme/rating');
+    $dates = $xp->query('/tv/programme/date');
+
+    $first = null;
+    $last = null;
+    foreach ($programmes as $programme) {
+        $start = $programme->getAttribute('start');
+        $stop = $programme->getAttribute('stop');
+        if ($start !== '' && ($first === null || strcmp($start, $first) < 0)) $first = $start;
+        if ($stop !== '' && ($last === null || strcmp($stop, $last) > 0)) $last = $stop;
+    }
+
+    return [
+        'ok' => true,
+        'channels' => $channels->length,
+        'programmes' => $programmes->length,
+        'categories' => $categories->length,
+        'subtitles' => $subtitles->length,
+        'ratings' => $ratings->length,
+        'dates' => $dates->length,
+        'first_start' => $first,
+        'last_stop' => $last,
+    ];
+}
+
+function health_parse_m3u(string $body): array {
+    $lines = preg_split('/\r\n|\r|\n/', $body);
+    $streams = 0;
+    $extinf = 0;
+    foreach ($lines as $line) {
+        $line = trim($line);
+        if ($line === '') continue;
+        if (stripos($line, '#EXTINF') === 0) {
+            $extinf++;
+            continue;
+        }
+        if ($line[0] !== '#') $streams++;
+    }
+    return ['streams' => $streams, 'extinf' => $extinf];
+}
+
+function health_format_xmltv_stamp(?string $stamp): string {
+    if (!$stamp) return '—';
+    $dt = DateTime::createFromFormat('YmdHis O', $stamp);
+    if (!$dt) return $stamp;
+    return $dt->format('d/m/Y H:i');
+}
+
+$config_path = gridtv_config_path();
+$config_exists = file_exists($config_path);
+$config_writable = $config_exists ? is_writable($config_path) : is_writable(dirname($config_path));
+$sources = array_values($config['epg_sources'] ?? []);
+
+$checks = [
+    [
+        'label' => 'Config file',
+        'ok' => $config_exists,
+        'detail' => $config_exists ? basename($config_path) . ' found' : 'Missing config.json',
+    ],
+    [
+        'label' => 'Config writable',
+        'ok' => $config_writable,
+        'detail' => $config_writable ? 'Writable by PHP' : 'Not writable by PHP',
+    ],
+    [
+        'label' => 'PHP version',
+        'ok' => version_compare(PHP_VERSION, '8.0.0', '>='),
+        'detail' => 'PHP ' . PHP_VERSION,
+    ],
+    [
+        'label' => 'php-curl',
+        'ok' => extension_loaded('curl'),
+        'detail' => extension_loaded('curl') ? 'Extension loaded' : 'Missing php-curl',
+    ],
+    [
+        'label' => 'Configured sources',
+        'ok' => count($sources) > 0,
+        'detail' => count($sources) . ' source(s) in config',
+    ],
+];
+
+$source_reports = [];
+foreach ($sources as $index => $source) {
+    $epg_url = trim((string) ($source['epg_url'] ?? ''));
+    $m3u_url = trim((string) ($source['m3u_url'] ?? ''));
+
+    $epg_fetch = $epg_url !== '' ? gridtv_fetch_url($epg_url, 25) : ['ok' => false, 'status' => 0, 'error' => 'Missing URL', 'body' => '', 'content_type' => '', 'final_url' => '', 'time_total' => 0.0];
+    $epg_stats = $epg_fetch['ok'] ? health_parse_xmltv($epg_fetch['body']) : ['ok' => false, 'error' => $epg_fetch['error'] ?: 'HTTP ' . $epg_fetch['status']];
+
+    $m3u_fetch = null;
+    $m3u_stats = null;
+    if ($m3u_url !== '') {
+        $m3u_fetch = gridtv_fetch_url($m3u_url, 20);
+        $m3u_stats = $m3u_fetch['ok'] ? health_parse_m3u($m3u_fetch['body']) : null;
+    }
+
+    $source_reports[] = [
+        'name' => $source['name'] ?: 'Source ' . ($index + 1),
+        'epg_url' => $epg_url,
+        'm3u_url' => $m3u_url,
+        'epg_fetch' => $epg_fetch,
+        'epg_stats' => $epg_stats,
+        'm3u_fetch' => $m3u_fetch,
+        'm3u_stats' => $m3u_stats,
+    ];
+}
+?><!DOCTYPE html>
+<html lang="<?= htmlspecialchars($locale) ?>">
+<head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<title>GridTV — Health</title>
+<link rel="stylesheet" href="/assets/fonts/fonts.css">
+<style>
+:root{--bg:#0b0d10;--surface:#13161b;--surface2:#1a1f27;--border:#2a3240;--accent:#e8c842;--accent2:#5ec0ff;--text:#eaf0f6;--muted:#8f9aac;--ok:#4fd18b;--warn:#ff6767}
+*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#1b2330 0,#0b0d10 48%);color:var(--text);font-family:'Barlow Condensed',sans-serif}
+.page{max-width:1200px;margin:0 auto;padding:32px 20px 56px}
+.hero{display:flex;justify-content:space-between;gap:18px;align-items:flex-end;margin-bottom:24px}
+.logo{font-family:'Share Tech Mono',monospace;font-size:26px;letter-spacing:.12em;color:var(--accent);text-transform:uppercase}
+.subtitle{color:var(--muted);font-size:14px;max-width:700px;line-height:1.5}
+.actions{display:flex;gap:10px;flex-wrap:wrap}
+.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 14px;border:1px solid var(--border);background:var(--surface);color:var(--text);text-decoration:none;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
+.btn-primary{background:var(--accent);color:#000;border-color:var(--accent)}
+.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-bottom:22px}
+.card,.source{background:rgba(19,22,27,.95);border:1px solid var(--border)}
+.card{padding:16px}
+.eyebrow{font-family:'Share Tech Mono',monospace;font-size:11px;color:var(--accent2);letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}
+.value{font-size:28px;font-weight:700}
+.small{font-size:13px;color:var(--muted)}
+.checks{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-bottom:24px}
+.check{padding:14px;background:var(--surface);border:1px solid var(--border)}
+.status{display:inline-flex;align-items:center;gap:8px;font-family:'Share Tech Mono',monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase}
+.status::before{content:'';width:10px;height:10px;border-radius:50%}
+.status.ok{color:var(--ok)}.status.ok::before{background:var(--ok)}
+.status.ko{color:var(--warn)}.status.ko::before{background:var(--warn)}
+.source-list{display:grid;gap:18px}
+.source{padding:20px}
+.source-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:16px}
+.source-title{font-size:24px;font-weight:700}
+.pill{display:inline-block;padding:6px 10px;font-family:'Share Tech Mono',monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;background:var(--surface2);border:1px solid var(--border);color:var(--accent2)}
+.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
+.panel{padding:16px;background:var(--surface2);border:1px solid var(--border)}
+.panel h3{margin:0 0 10px;font-size:16px;letter-spacing:.06em;text-transform:uppercase}
+.kv{display:grid;grid-template-columns:160px 1fr;gap:8px;font-size:14px;line-height:1.45}
+.kv div:nth-child(odd){color:var(--muted)}
+.mono{font-family:'Share Tech Mono',monospace;font-size:12px;word-break:break-all}
+@media (max-width:700px){.hero{flex-direction:column;align-items:flex-start}.kv{grid-template-columns:1fr}}
+</style>
+</head>
+<body>
+<div class="page">
+  <div class="hero">
+    <div>
+      <div class="logo">GridTV / Health</div>
+      <div class="subtitle">Page de diagnostic admin. Elle vérifie l’état de l’instance, les flux XMLTV/M3U configurés et les signaux qui aident à comprendre vite ce qui coince.</div>
+    </div>
+    <div class="actions">
+      <a class="btn btn-primary" href="/export.php">Export 24h</a>
+      <a class="btn" href="/setup.php">Setup</a>
+      <a class="btn" href="/index.php">Guide</a>
+    </div>
+  </div>
+
+  <div class="grid">
+    <div class="card"><div class="eyebrow">Group</div><div class="value"><?= htmlspecialchars($config['group_name'] ?? 'GridTV') ?></div><div class="small">Configured TV group name</div></div>
+    <div class="card"><div class="eyebrow">Sources</div><div class="value"><?= count($sources) ?></div><div class="small">Configured XMLTV sources</div></div>
+    <div class="card"><div class="eyebrow">Locale</div><div class="value"><?= strtoupper(htmlspecialchars($locale)) ?></div><div class="small">Detected UI locale</div></div>
+    <div class="card"><div class="eyebrow">Config Size</div><div class="value"><?= $config_exists ? htmlspecialchars(gridtv_format_bytes(filesize($config_path))) : '0 B' ?></div><div class="small"><?= htmlspecialchars($config_path) ?></div></div>
+  </div>
+
+  <div class="checks">
+<?php foreach ($checks as $check): ?>
+    <div class="check">
+      <div class="status <?= health_status_class($check['ok']) ?>"><?= health_status_label($check['ok']) ?></div>
+      <div style="font-size:18px;font-weight:700;margin:8px 0 6px"><?= htmlspecialchars($check['label']) ?></div>
+      <div class="small"><?= htmlspecialchars($check['detail']) ?></div>
+    </div>
+<?php endforeach; ?>
+  </div>
+
+  <div class="source-list">
+<?php foreach ($source_reports as $report): ?>
+    <section class="source">
+      <div class="source-head">
+        <div>
+          <div class="source-title"><?= htmlspecialchars($report['name']) ?></div>
+          <div class="small">EPG host: <?= htmlspecialchars(gridtv_extract_host($report['epg_url'])) ?: '—' ?><?= $report['m3u_url'] ? ' · M3U host: ' . htmlspecialchars(gridtv_extract_host($report['m3u_url'])) : '' ?></div>
+        </div>
+        <span class="pill"><?= htmlspecialchars($report['epg_fetch']['ok'] && $report['epg_stats']['ok'] ? 'Healthy XMLTV' : 'Check source') ?></span>
+      </div>
+      <div class="split">
+        <div class="panel">
+          <h3>XMLTV</h3>
+          <div class="kv">
+            <div>Status</div><div><span class="status <?= health_status_class($report['epg_fetch']['ok'] && $report['epg_stats']['ok']) ?>"><?= health_status_label($report['epg_fetch']['ok'] && $report['epg_stats']['ok']) ?></span></div>
+            <div>URL</div><div class="mono"><?= htmlspecialchars($report['epg_url']) ?></div>
+            <div>HTTP</div><div><?= htmlspecialchars((string) $report['epg_fetch']['status']) ?><?= $report['epg_fetch']['error'] ? ' · ' . htmlspecialchars($report['epg_fetch']['error']) : '' ?></div>
+            <div>Response time</div><div><?= htmlspecialchars(number_format($report['epg_fetch']['time_total'], 2)) ?> s</div>
+<?php if ($report['epg_fetch']['ok'] && $report['epg_stats']['ok']): ?>
+            <div>Channels</div><div><?= htmlspecialchars((string) $report['epg_stats']['channels']) ?></div>
+            <div>Programmes</div><div><?= htmlspecialchars((string) $report['epg_stats']['programmes']) ?></div>
+            <div>Sub-titles</div><div><?= htmlspecialchars((string) $report['epg_stats']['subtitles']) ?></div>
+            <div>Ratings</div><div><?= htmlspecialchars((string) $report['epg_stats']['ratings']) ?></div>
+            <div>Categories</div><div><?= htmlspecialchars((string) $report['epg_stats']['categories']) ?></div>
+            <div>Date tags</div><div><?= htmlspecialchars((string) $report['epg_stats']['dates']) ?></div>
+            <div>Window</div><div><?= htmlspecialchars(health_format_xmltv_stamp($report['epg_stats']['first_start'])) ?> → <?= htmlspecialchars(health_format_xmltv_stamp($report['epg_stats']['last_stop'])) ?></div>
+            <div>Content-Type</div><div><?= htmlspecialchars($report['epg_fetch']['content_type'] ?: '—') ?></div>
+<?php else: ?>
+            <div>Parse</div><div><?= htmlspecialchars($report['epg_stats']['error'] ?? 'Unable to read XMLTV') ?></div>
+<?php endif; ?>
+          </div>
+        </div>
+        <div class="panel">
+          <h3>M3U</h3>
+<?php if (!$report['m3u_url']): ?>
+          <div class="small">No M3U URL configured for this source.</div>
+<?php else: ?>
+          <div class="kv">
+            <div>Status</div><div><span class="status <?= health_status_class((bool) ($report['m3u_fetch']['ok'] ?? false)) ?>"><?= health_status_label((bool) ($report['m3u_fetch']['ok'] ?? false)) ?></span></div>
+            <div>URL</div><div class="mono"><?= htmlspecialchars($report['m3u_url']) ?></div>
+            <div>HTTP</div><div><?= htmlspecialchars((string) ($report['m3u_fetch']['status'] ?? 0)) ?><?= !empty($report['m3u_fetch']['error']) ? ' · ' . htmlspecialchars($report['m3u_fetch']['error']) : '' ?></div>
+            <div>Response time</div><div><?= htmlspecialchars(number_format((float) ($report['m3u_fetch']['time_total'] ?? 0), 2)) ?> s</div>
+<?php if (!empty($report['m3u_fetch']['ok']) && $report['m3u_stats']): ?>
+            <div>Streams</div><div><?= htmlspecialchars((string) $report['m3u_stats']['streams']) ?></div>
+            <div>#EXTINF</div><div><?= htmlspecialchars((string) $report['m3u_stats']['extinf']) ?></div>
+            <div>Content-Type</div><div><?= htmlspecialchars($report['m3u_fetch']['content_type'] ?: '—') ?></div>
+<?php else: ?>
+            <div>Parse</div><div>Unable to load playlist.</div>
+<?php endif; ?>
+          </div>
+<?php endif; ?>
+        </div>
+      </div>
+    </section>
+<?php endforeach; ?>
+  </div>
+</div>
+</body>
+</html>

src/lib/admin.php

@@ -0,0 +1,29 @@
+<?php
+
+require_once __DIR__ . '/common.php';
+
+function gridtv_require_admin(array $config, string $page_title = 'Admin'): array {
+    session_start();
+
+    $admin_key = (string) ($config['admin_key'] ?? '');
+    $session_key = $_SESSION['gridtv_admin_unlocked'] ?? '';
+    $error = '';
+
+    if ($admin_key !== '' && hash_equals($admin_key, (string) $session_key)) {
+        return ['unlocked' => true, 'error' => ''];
+    }
+
+    if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['admin_key_input'])) {
+        $submitted = trim((string) ($_POST['admin_key_input'] ?? ''));
+        if ($admin_key !== '' && hash_equals($admin_key, $submitted)) {
+            $_SESSION['gridtv_admin_unlocked'] = $admin_key;
+            header('Location: ' . strtok($_SERVER['REQUEST_URI'], '?'));
+            exit;
+        }
+        $error = 'Invalid admin key.';
+    }
+
+    http_response_code(401);
+    echo '<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>GridTV — ' . htmlspecialchars($page_title) . '</title><link rel="stylesheet" href="/assets/fonts/fonts.css"><style>:root{--bg:#0a0b0d;--surface:#111318;--surface2:#181b22;--border:#232733;--border-bright:#2e3444;--accent:#e8c842;--text:#c8cdd8;--text-dim:#5a6070;--text-bright:#eef0f5;--error:#ff4444;}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg);color:var(--text);font-family:"Barlow Condensed",sans-serif;padding:24px}.card{width:100%;max-width:460px;background:var(--surface);border:1px solid var(--border-bright);padding:34px}.logo{font-family:"Share Tech Mono",monospace;font-size:22px;color:var(--accent);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}.sub{font-size:13px;color:var(--text-dim);line-height:1.5;margin-bottom:24px}.error{background:rgba(255,68,68,.08);border-left:3px solid var(--error);padding:12px 14px;color:var(--error);font-size:13px;margin-bottom:18px}label{display:block;font-family:"Share Tech Mono",monospace;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-dim);margin-bottom:8px}input{width:100%;background:var(--surface2);border:1px solid var(--border-bright);color:var(--text-bright);font-family:"Share Tech Mono",monospace;font-size:13px;padding:11px 12px;margin-bottom:16px}button{width:100%;background:var(--accent);color:#000;border:none;font-family:"Barlow Condensed",sans-serif;font-size:14px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:12px;cursor:pointer}.links{margin-top:16px;font-size:12px;color:var(--text-dim)}.links a{color:var(--accent);text-decoration:none}</style></head><body><div class="card"><div class="logo">GridTV</div><div class="sub">Enter your admin key to access the ' . htmlspecialchars($page_title) . ' page.</div>' . ($error ? '<div class="error">' . htmlspecialchars($error) . '</div>' : '') . '<form method="POST"><label for="admin_key_input">Admin key</label><input id="admin_key_input" type="password" name="admin_key_input" autocomplete="off" autofocus><button type="submit">Unlock</button></form><div class="links"><a href="/setup.php">Open setup</a></div></div></body></html>';
+    exit;
+}

src/lib/common.php

@@ -0,0 +1,127 @@
+<?php
+
+function gridtv_config_path(): string {
+    return dirname(__DIR__, 2) . '/config.json';
+}
+
+function gridtv_load_config(): array {
+    $config_path = gridtv_config_path();
+    if (!file_exists($config_path)) {
+        header('Location: /setup.php');
+        exit;
+    }
+
+    $config = json_decode(file_get_contents($config_path), true);
+    if (!is_array($config)) {
+        http_response_code(500);
+        die('<h2>GridTV — Configuration error</h2><p><code>config.json</code> is invalid or corrupted.<br>Please delete it and re-run <a href="/setup.php">setup</a>, or fix it manually via SSH.</p>');
+    }
+
+    if (isset($config['epg_url']) && !isset($config['epg_sources'])) {
+        $config['epg_sources'] = [[
+            'name'    => 'Main',
+            'epg_url' => $config['epg_url'],
+            'm3u_url' => $config['m3u_url'] ?? '',
+        ]];
+        $config['allow_personal_epg'] = false;
+        unset($config['epg_url'], $config['m3u_url']);
+        file_put_contents($config_path, json_encode($config, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
+    }
+
+    return $config;
+}
+
+function gridtv_load_locale(array $config = []): array {
+    $locale_files = glob(dirname(__DIR__, 2) . '/locales/*.json') ?: [];
+    $supported_locales = array_map(fn($f) => basename($f, '.json'), $locale_files);
+
+    $locale = 'en';
+    $accept = $_SERVER['HTTP_ACCEPT_LANGUAGE'] ?? 'en';
+    foreach (explode(',', $accept) as $lang) {
+        $code = strtolower(substr(trim($lang), 0, 2));
+        if (in_array($code, $supported_locales, true)) {
+            $locale = $code;
+            break;
+        }
+    }
+
+    $locale_path = dirname(__DIR__, 2) . "/locales/{$locale}.json";
+    $strings = is_file($locale_path) ? json_decode(file_get_contents($locale_path), true) : null;
+    if (!is_array($strings)) {
+        $fallback_path = dirname(__DIR__, 2) . '/locales/en.json';
+        $strings = is_file($fallback_path) ? (json_decode(file_get_contents($fallback_path), true) ?? []) : [];
+        $locale = 'en';
+    }
+
+    return [$locale, $strings];
+}
+
+function gridtv_fetch_url(string $url, int $timeout = 20, bool $head_only = false): array {
+    if (!function_exists('curl_init')) {
+        return [
+            'ok' => false,
+            'status' => 0,
+            'error' => 'php-curl extension is not installed.',
+            'body' => '',
+            'headers' => [],
+            'content_type' => '',
+            'final_url' => $url,
+            'time_total' => 0.0,
+        ];
+    }
+
+    $headers = [];
+    $ch = curl_init($url);
+    curl_setopt_array($ch, [
+        CURLOPT_RETURNTRANSFER => true,
+        CURLOPT_FOLLOWLOCATION => true,
+        CURLOPT_MAXREDIRS => 5,
+        CURLOPT_CONNECTTIMEOUT => 8,
+        CURLOPT_TIMEOUT => $timeout,
+        CURLOPT_USERAGENT => $_SERVER['HTTP_USER_AGENT'] ?? 'GridTV/health',
+        CURLOPT_HEADERFUNCTION => static function ($ch, $line) use (&$headers) {
+            $trimmed = trim($line);
+            if ($trimmed !== '' && strpos($trimmed, ':') !== false) {
+                [$name, $value] = explode(':', $trimmed, 2);
+                $headers[strtolower(trim($name))] = trim($value);
+            }
+            return strlen($line);
+        },
+        CURLOPT_HTTPHEADER => ['Accept: */*'],
+        CURLOPT_NOBODY => $head_only,
+    ]);
+
+    $body = curl_exec($ch);
+    $error = curl_error($ch);
+    $status = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
+    $content_type = (string) curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
+    $final_url = (string) curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
+    $time_total = (float) curl_getinfo($ch, CURLINFO_TOTAL_TIME);
+    curl_close($ch);
+
+    return [
+        'ok' => $error === '' && $status >= 200 && $status < 400,
+        'status' => $status,
+        'error' => $error,
+        'body' => is_string($body) ? $body : '',
+        'headers' => $headers,
+        'content_type' => $content_type,
+        'final_url' => $final_url ?: $url,
+        'time_total' => $time_total,
+    ];
+}
+
+function gridtv_format_bytes(int $bytes): string {
+    $units = ['B', 'KB', 'MB', 'GB'];
+    $size = (float) $bytes;
+    $unit = 0;
+    while ($size >= 1024 && $unit < count($units) - 1) {
+        $size /= 1024;
+        $unit++;
+    }
+    return number_format($size, $size >= 10 || $unit === 0 ? 0 : 1) . ' ' . $units[$unit];
+}
+
+function gridtv_extract_host(string $url): string {
+    return strtolower(parse_url($url, PHP_URL_HOST) ?? '');
+}