export.php

<?php
require_once __DIR__ . '/src/lib/common.php';

$config = gridtv_load_config();
[$locale, $L] = gridtv_load_locale($config);

function export_parse_xmltv_programmes(string $xml, string $target_day): array {
    if (!class_exists('DOMDocument')) {
        return ['channels' => [], 'programmes' => [], 'error' => 'PHP DOM/XML extension is not installed'];
    }

    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' => ''];
}

function export_window_definitions(string $target_day): array {
    return [
        'full' => [
            'label' => '00h-24h',
            'start' => new DateTimeImmutable($target_day . ' 00:00:00'),
            'end' => new DateTimeImmutable($target_day . ' 23:59:59'),
        ],
        'morning' => [
            'label' => 'Morning',
            'start' => new DateTimeImmutable($target_day . ' 06:00:00'),
            'end' => new DateTimeImmutable($target_day . ' 11:59:59'),
        ],
        'afternoon' => [
            'label' => 'Afternoon',
            'start' => new DateTimeImmutable($target_day . ' 12:00:00'),
            'end' => new DateTimeImmutable($target_day . ' 17:59:59'),
        ],
        'evening' => [
            'label' => 'Evening',
            'start' => new DateTimeImmutable($target_day . ' 18:00:00'),
            'end' => new DateTimeImmutable($target_day . ' 23:59:59'),
        ],
        'prime' => [
            'label' => 'Prime time',
            'start' => new DateTimeImmutable($target_day . ' 20:00:00'),
            'end' => new DateTimeImmutable($target_day . ' 23:59:59'),
        ],
    ];
}

function export_filter_programmes(array $programmes, DateTimeImmutable $start, DateTimeImmutable $end): array {
    return array_values(array_filter($programmes, static fn($p) => $p['stop'] > $start && $p['start'] < $end));
}

function export_hour_slots(DateTimeImmutable $start, DateTimeImmutable $end): array {
    $slots = [];
    $cursor = $start;
    while ($cursor < $end) {
        $slot_end = $cursor->modify('+1 hour');
        if ($slot_end > $end) $slot_end = $end;
        $slots[] = ['start' => $cursor, 'end' => $slot_end];
        $cursor = $slot_end;
    }
    return $slots;
}

function export_programme_weight(array $programme): int {
    $duration = max(1, (int) round(($programme['stop']->getTimestamp() - $programme['start']->getTimestamp()) / 60));
    $weight = min($duration, 240);
    if (!empty($programme['subtitle'])) $weight += 10;
    if (!empty($programme['categories'])) $weight += 8;
    if (!empty($programme['desc'])) $weight += min(40, (int) floor(strlen($programme['desc']) / 20));
    return $weight;
}

function export_programme_duration(array $programme): int {
    return max(1, (int) round(($programme['stop']->getTimestamp() - $programme['start']->getTimestamp()) / 60));
}

function export_programme_is_series(array $programme): bool {
    return !empty($programme['subtitle']);
}

function export_programme_has_category(array $programme, array $needles): bool {
    foreach ($programme['categories'] as $category) {
        $value = strtolower($category);
        foreach ($needles as $needle) {
            if (str_contains($value, strtolower($needle))) return true;
        }
    }
    return false;
}

function export_take_entries(array $entries, callable $filter, int $limit = 4): array {
    $picked = [];
    foreach ($entries as $entry) {
        if (!$filter($entry)) continue;
        $picked[] = $entry;
        if (count($picked) >= $limit) break;
    }
    return $picked;
}

$sources = array_values($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');
$layout_input = isset($_GET['layout']) ? (string) $_GET['layout'] : 'cards';
$limit_input = isset($_GET['limit']) ? (string) $_GET['limit'] : '8';
$window_input = isset($_GET['window']) ? (string) $_GET['window'] : 'full';
$layout = in_array($layout_input, ['cards', 'timeline'], true) ? $layout_input : 'cards';
$limit = in_array($limit_input, ['4', '8', 'all'], true) ? $limit_input : '8';
$windows = export_window_definitions($target_day);
$window_key = array_key_exists($window_input, $windows) ? $window_input : 'full';
$window = $windows[$window_key];
$slots = export_hour_slots($window['start'], $window['end']->modify('+1 second'));

$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'];

$visible_channels = [];
foreach ($parsed['channels'] as $channel_id => $channel) {
    $filtered = export_filter_programmes($parsed['programmes'][$channel_id] ?? [], $window['start'], $window['end']->modify('+1 second'));
    if (!$filtered) continue;
    $visible_channels[$channel_id] = $channel + ['programmes' => $filtered];
}

if ($limit !== 'all') {
    $visible_channels = array_slice($visible_channels, 0, (int) $limit, true);
}

$day_label = (new DateTimeImmutable($target_day))->format('l d F Y');
$layout_label = $layout === 'cards' ? 'Readable cards' : 'Dense timeline';
?><!DOCTYPE html>
<html lang="<?= htmlspecialchars($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;--paper-2:#fbf6ea}
*{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,.filter-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.controls a,.controls button,.controls select,.controls input,.filter-form select,.filter-form input,.filter-form button{height:42px;border:none}
.controls a,.controls button,.filter-form 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}
.ghost{background:#262a31 !important;color:#f7f4ee !important;border:1px solid #3c4450 !important}
.controls select,.controls input,.filter-form select,.filter-form 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:18px}
.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}
.empty{color:var(--ink-soft);font-style:italic;font-size:13px;padding-top:24px}
.note{margin-top:16px;font-size:12px;color:var(--ink-soft);text-align:right}
.cards-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.channel-card{background:rgba(255,255,255,.35);border:1px solid var(--line);padding:14px 14px 12px;break-inside:avoid}
.channel-head{display:flex;gap:12px;align-items:center;border-bottom:2px solid var(--accent-2);padding-bottom:10px;margin-bottom:12px}
.channel-head img{width:46px;height:46px;object-fit:contain;background:#fff;border:1px solid var(--line);padding:4px}
.channel-name{font-size:24px;font-weight:700;line-height:1.05}
.channel-count{font-family:'Share Tech Mono',monospace;font-size:11px;color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase}
.prog-list{display:grid;gap:8px}
.prog{display:grid;grid-template-columns:90px 1fr;gap:10px;padding:8px 0;border-top:1px dashed var(--line)}
.prog:first-child{border-top:none;padding-top:0}
.prog-time{font-family:'Share Tech Mono',monospace;font-size:11px;color:var(--accent-2);letter-spacing:.04em}
.prog-title{font-size:16px;font-weight:700;line-height:1.08}
.prog-sub,.prog-cats,.prog-desc{font-size:12px;color:var(--ink-soft);line-height:1.3;margin-top:2px}
.prog-desc{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.timeline-wrap{display:grid;gap:14px}
.timeline-row{display:grid;grid-template-columns:180px 1fr;gap:14px;align-items:stretch}
.timeline-channel{border-top:2px solid var(--accent-2);padding-top:8px}
.timeline-grid{display:grid;grid-template-columns:repeat(var(--cols),minmax(0,1fr));border-top:2px solid var(--accent-2);min-height:108px}
.timeline-slot{border-left:1px dashed var(--line);padding:8px 8px 10px}
.timeline-slot:first-child{border-left:none}
.slot-label{font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px}
.mini{display:block;padding:7px;background:rgba(170,66,49,.08);border-left:3px solid var(--accent);margin-bottom:6px}
.mini-title{font-size:13px;font-weight:700;line-height:1.05}
.mini-meta{font-family:'Share Tech Mono',monospace;font-size:10px;color:var(--ink-soft);margin-top:3px}
@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}.cards-grid{grid-template-columns:1fr 1fr}}
@media (max-width:1200px){.sheet{width:100%}.cards-grid{grid-template-columns:1fr}.timeline-row{grid-template-columns:1fr}.timeline-grid{overflow:auto}}
</style>
</head>
<body>
<div class="page">
  <div class="toolbar">
    <div class="heading">
      <h1>Export 24h</h1>
      <p>Version imprimable pensée pour être vraiment lisible. Le mode “cartes” sert au PDF ou à l’envoi à quelqu’un, la timeline dense reste disponible pour une vue plus technique.</p>
    </div>
    <div class="controls">
      <form method="GET" class="filter-form">
        <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($target_day) ?>">
        <select name="window">
<?php foreach ($windows as $key => $def): ?>
          <option value="<?= htmlspecialchars($key) ?>"<?= $key === $window_key ? ' selected' : '' ?>><?= htmlspecialchars($def['label']) ?></option>
<?php endforeach; ?>
        </select>
        <select name="limit">
          <option value="4"<?= $limit === '4' ? ' selected' : '' ?>>4 channels</option>
          <option value="8"<?= $limit === '8' ? ' selected' : '' ?>>8 channels</option>
          <option value="all"<?= $limit === 'all' ? ' selected' : '' ?>>All channels</option>
        </select>
        <select name="layout">
          <option value="cards"<?= $layout === 'cards' ? ' selected' : '' ?>>Readable cards</option>
          <option value="timeline"<?= $layout === 'timeline' ? ' selected' : '' ?>>Dense timeline</option>
        </select>
        <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="/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 · Printable edition · <?= htmlspecialchars($layout_label) ?></div>
          <div class="sheet-title">Le programme télé de la journée</div>
        </div>
        <div class="sheet-meta">
          <div class="group"><?= htmlspecialchars($config['group_name'] ?? 'GridTV') ?></div>
          <div class="date"><?= htmlspecialchars($day_label) ?> · <?= htmlspecialchars($source['name'] ?? 'Source') ?></div>
        </div>
      </div>

      <div class="legend">
        <span><?= htmlspecialchars($window['label']) ?></span>
        <span><?= count($visible_channels) ?> channel(s)</span>
        <span><?= htmlspecialchars($layout_label) ?></span>
      </div>

<?php if (!$fetch['ok'] || $parsed['error']): ?>
      <div class="empty">Impossible de générer la feuille: <?= htmlspecialchars($parsed['error'] ?: ($fetch['error'] ?? 'Unknown error')) ?></div>
<?php elseif (!$visible_channels): ?>
      <div class="empty">Aucun programme trouvé avec ce filtre.</div>
<?php elseif ($layout === 'cards'): ?>
      <div class="cards-grid">
<?php foreach ($visible_channels as $channel): ?>
        <section class="channel-card">
          <div class="channel-head">
<?php if ($channel['icon']): ?><img src="<?= htmlspecialchars($channel['icon']) ?>" alt=""><?php endif; ?>
            <div>
              <div class="channel-name"><?= htmlspecialchars($channel['name']) ?></div>
              <div class="channel-count"><?= count($channel['programmes']) ?> programme(s)</div>
            </div>
          </div>
          <div class="prog-list">
<?php foreach ($channel['programmes'] as $programme): ?>
<?php
$meta = $programme['rating'];
$cats = $programme['categories'] ? implode(' · ', $programme['categories']) : '';
?>
            <article class="prog">
              <div class="prog-time"><?= htmlspecialchars($programme['start']->format('H:i')) ?><br><?= htmlspecialchars($programme['stop']->format('H:i')) ?></div>
              <div>
                <div class="prog-title"><?= htmlspecialchars($programme['title']) ?></div>
<?php if ($programme['subtitle']): ?><div class="prog-sub"><?= htmlspecialchars($programme['subtitle']) ?></div><?php endif; ?>
<?php if ($meta): ?><div class="prog-sub"><?= htmlspecialchars($meta) ?></div><?php endif; ?>
<?php if ($cats): ?><div class="prog-cats"><?= htmlspecialchars($cats) ?></div><?php endif; ?>
<?php if ($programme['desc']): ?><div class="prog-desc"><?= htmlspecialchars($programme['desc']) ?></div><?php endif; ?>
              </div>
            </article>
<?php endforeach; ?>
          </div>
        </section>
<?php endforeach; ?>
      </div>
<?php elseif ($layout === 'timeline'): ?>
      <div class="timeline-wrap">
<?php foreach ($visible_channels as $channel): ?>
        <div class="timeline-row">
          <div class="timeline-channel">
            <div class="channel-head">
<?php if ($channel['icon']): ?><img src="<?= htmlspecialchars($channel['icon']) ?>" alt=""><?php endif; ?>
              <div>
                <div class="channel-name"><?= htmlspecialchars($channel['name']) ?></div>
                <div class="channel-count"><?= count($channel['programmes']) ?> programme(s)</div>
              </div>
            </div>
          </div>
          <div class="timeline-grid" style="--cols:<?= count($slots) ?>">
<?php foreach ($slots as $slot): ?>
<?php
$items = array_values(array_filter($channel['programmes'], static fn($p) => $p['stop'] > $slot['start'] && $p['start'] < $slot['end']));
?>
            <div class="timeline-slot">
              <div class="slot-label"><?= htmlspecialchars($slot['start']->format('H:i')) ?></div>
<?php if (!$items): ?>
              <div class="empty">—</div>
<?php else: ?>
<?php foreach ($items as $programme): ?>
              <div class="mini">
                <div class="mini-title"><?= htmlspecialchars($programme['title']) ?></div>
                <div class="mini-meta"><?= htmlspecialchars($programme['start']->format('H:i') . ' - ' . $programme['stop']->format('H:i')) ?></div>
              </div>
<?php endforeach; ?>
<?php endif; ?>
            </div>
<?php endforeach; ?>
          </div>
        </div>
<?php endforeach; ?>
      </div>
<?php endif; ?>

      <div class="note">Astuce: “Readable cards” reste le plus propre pour une impression exhaustive.</div>
    </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-<?= htmlspecialchars($window_key) ?>-<?= htmlspecialchars($target_day) ?>.png';
  link.click();
}
</script>
</body>
</html>