<?php
declare(strict_types=1);

require __DIR__ . '/../inc/admin_boot.php';
$pdo = Database::pdo();
$err = '';
$msg = '';

/* detect optional is_featured column */
$hasFeatured = false;
try {
    $cols = $pdo->query("SHOW COLUMNS FROM games")->fetchAll(PDO::FETCH_COLUMN);
    $cols = array_map('strtolower', $cols);
    $hasFeatured = in_array('is_featured', $cols, true);
} catch (Throwable $e) {}

/* ensure column hint */
$featuredHint = '';
if (!$hasFeatured) {
    $featuredHint = "Heads up: your games table has no is_featured column. Run:
  ALTER TABLE `games` ADD COLUMN `is_featured` TINYINT(1) NOT NULL DEFAULT 0 AFTER `is_published`;";
}

/* -------------------------------------------------
   EXPORT ALL GAMES (ignores filters & pagination)
------------------------------------------------- */
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['export_all']) && $_POST['export_all'] === '1') {
    csrf_check();
    try {
        // Determine game columns (excluding id + category_id)
        $colStmt = $pdo->query("SHOW COLUMNS FROM games");
        $gameCols = [];
        while ($c = $colStmt->fetch(PDO::FETCH_ASSOC)) {
            $name = (string)$c['Field'];
            if ($name === 'id' || $name === 'category_id') {
                continue;
            }
            $gameCols[] = $name;
        }

        // Fetch ALL games with category name
        $st = $pdo->query("
      SELECT g.*, c.name AS category_name
      FROM games g
      LEFT JOIN categories c ON c.id = g.category_id
      ORDER BY g.id ASC
    ");
        $games = [];
        while ($row = $st->fetch(PDO::FETCH_ASSOC)) {
            $fields = [];
            foreach ($gameCols as $col) {
                if (array_key_exists($col, $row)) {
                    $fields[$col] = $row[$col];
                }
            }
            $games[] = [
                'fields'        => $fields,
                'category_name' => $row['category_name'] ?? '',
            ];
        }

        $payload = [
            'export_type'  => 'games',
            'scope'        => 'all',
            'exported_at'  => gmdate('c'),
            'source_host'  => $_SERVER['HTTP_HOST'] ?? '',
            'games_count'  => count($games),
            'games'        => $games,
        ];

        header('Content-Type: application/json; charset=utf-8');
        header('Content-Disposition: attachment; filename="games-export-ALL-' . date('Ymd-His') . '.json"');
        echo json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
        exit;
    } catch (Throwable $e) {
        $err = 'Export ALL failed: ' . $e->getMessage();
    }
}

/* -------------------------------------------------
   BULK ACTIONS (selected rows)
------------------------------------------------- */
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['bulk_action'])) {
    csrf_check();
    $ids = array_filter(array_map('intval', $_POST['ids'] ?? []));
    $act = $_POST['bulk_action'] ?? '';

    if ($ids) {
        $ph = implode(',', array_fill(0, count($ids), '?'));

        /* Export selected games as JSON for import on another installation */
        if ($act === 'export_json') {
            try {
                // Determine game columns (excluding id + category_id)
                $colStmt = $pdo->query("SHOW COLUMNS FROM games");
                $gameCols = [];
                while ($c = $colStmt->fetch(PDO::FETCH_ASSOC)) {
                    $name = (string)$c['Field'];
                    if ($name === 'id' || $name === 'category_id') {
                        continue;
                    }
                    $gameCols[] = $name;
                }

                // Fetch selected games with category name
                $st = $pdo->prepare("
          SELECT g.*, c.name AS category_name
          FROM games g
          LEFT JOIN categories c ON c.id = g.category_id
          WHERE g.id IN ($ph)
        ");
                $st->execute($ids);
                $games = [];
                while ($row = $st->fetch(PDO::FETCH_ASSOC)) {
                    $fields = [];
                    foreach ($gameCols as $col) {
                        if (array_key_exists($col, $row)) {
                            $fields[$col] = $row[$col];
                        }
                    }
                    $games[] = [
                        'fields'        => $fields,
                        'category_name' => $row['category_name'] ?? '',
                    ];
                }

                $payload = [
                    'export_type'  => 'games',
                    'scope'        => 'selected',
                    'exported_at'  => gmdate('c'),
                    'source_host'  => $_SERVER['HTTP_HOST'] ?? '',
                    'games_count'  => count($games),
                    'games'        => $games,
                ];

                header('Content-Type: application/json; charset=utf-8');
                header('Content-Disposition: attachment; filename="games-export-' . date('Ymd-His') . '.json"');
                echo json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
                exit;
            } catch (Throwable $e) {
                $err = 'Export failed: ' . $e->getMessage();
            }
        }

        // Normal bulk actions
        try {
            if ($act === 'publish') {
                $st = $pdo->prepare("UPDATE games SET is_published=1,updated_at=NOW() WHERE id IN ($ph)");
                $st->execute($ids);
                $msg = "Published " . $st->rowCount() . " game(s).";
            } elseif ($act === 'unpublish') {
                $st = $pdo->prepare("UPDATE games SET is_published=0,updated_at=NOW() WHERE id IN ($ph)");
                $st->execute($ids);
                $msg = "Unpublished " . $st->rowCount() . " game(s).";
            } elseif ($act === 'delete') {
                $st = $pdo->prepare("DELETE FROM games WHERE id IN ($ph)");
                $st->execute($ids);
                $msg = "Deleted " . $st->rowCount() . " game(s).";
            } elseif ($act === 'feature_on' && $hasFeatured) {
                $st = $pdo->prepare("UPDATE games SET is_featured=1,updated_at=NOW() WHERE id IN ($ph)");
                $st->execute($ids);
                $msg = "Set Featured on " . $st->rowCount() . " game(s).";
            } elseif ($act === 'feature_off' && $hasFeatured) {
                $st = $pdo->prepare("UPDATE games SET is_featured=0,updated_at=NOW() WHERE id IN ($ph)");
                $st->execute($ids);
                $msg = "Removed Featured on " . $st->rowCount() . " game(s).";
            } else {
                if ($act !== 'export_json') {
                    $err = 'Unknown action or missing is_featured column.';
                }
            }
        } catch (Throwable $e) {
            $err = $e->getMessage();
        }
    } else {
        $err = 'No rows selected.';
    }
}

/* single-row feature toggle (legacy POST: feature_id + feature_set)
   Kept for backward-compatibility (non-JS). The UI below now uses AJAX. */
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['feature_id']) && $hasFeatured) {
    csrf_check();
    $gid = (int)($_POST['feature_id'] ?? 0);
    $set = (int)($_POST['feature_set'] ?? 0);
    if ($gid > 0) {
        $st = $pdo->prepare("UPDATE games SET is_featured=:s,updated_at=NOW() WHERE id=:id");
        $st->execute([':s' => $set, ':id' => $gid]);
        $msg = $set ? 'Marked as featured.' : 'Removed from featured.';
    }
}

/* FILTERS */
$q        = trim((string)($_GET['q'] ?? ''));
$cat      = (int)($_GET['cat'] ?? 0);
$prov     = trim((string)($_GET['provider'] ?? ''));
$status   = $_GET['status'] ?? 'any';       // any|1|0
$feat     = $_GET['feat'] ?? 'any';         // any|1|0
$sort     = $_GET['sort'] ?? 'new';         // new|name|popular|featured
$page     = max(1, (int)($_GET['page'] ?? 1));
$perPage  = min(100, max(10, (int)($_GET['per'] ?? 30)));

$where = ['1=1'];
$args  = [];

/* SAFE SEARCH (unique placeholders per column to avoid PDO duplicate-name issue) */
if ($q !== '') {
    $like = "%{$q}%";
    $searchCols = ['g.name', 'g.slug', 'g.description', 'g.external_id'];
    $ors = [];
    $i = 0;
    foreach ($searchCols as $col) {
        $i++;
        $ph = ":q{$i}";
        $ors[] = "$col LIKE $ph";
        $args[$ph] = $like;
    }
    $where[] = '(' . implode(' OR ', $ors) . ')';
}

if ($cat > 0) {
    $where[] = 'g.category_id=:cat';
    $args[':cat'] = $cat;
}
if ($prov !== '') {
    $where[] = 'g.provider=:prov';
    $args[':prov'] = $prov;
}
if ($status === '1' || $status === '0') {
    $where[] = 'g.is_published=:st';
    $args[':st'] = (int)$status;
}
if ($hasFeatured && ($feat === '1' || $feat === '0')) {
    $where[] = 'g.is_featured=:ft';
    $args[':ft'] = (int)$feat;
}

$orderSql = 'g.created_at DESC';
switch ($sort) {
    case 'name':
        $orderSql = 'g.name ASC';
        break;
    case 'popular':
        $orderSql = 'g.plays DESC, g.created_at DESC';
        break;
    case 'featured':
        $orderSql = $hasFeatured ? 'g.is_featured DESC, g.created_at DESC' : 'g.created_at DESC';
        break;
    default:
        $orderSql = 'g.created_at DESC';
}

$whereSql = 'WHERE ' . implode(' AND ', $where);

/* COUNT */
$st = $pdo->prepare("SELECT COUNT(*) FROM games g $whereSql");
$st->execute($args);
$total  = (int)$st->fetchColumn();
$pages  = max(1, (int)ceil($total / $perPage));
$offset = ($page - 1) * $perPage;

/* FETCH */
$selectFeatured = $hasFeatured ? ', g.is_featured' : '';
$sql = "SELECT g.id,g.name,g.slug,g.provider,g.external_id,g.is_published$selectFeatured,
             g.thumb_url,g.category_id,c.name AS category_name,g.created_at,g.updated_at,g.plays
      FROM games g
      LEFT JOIN categories c ON c.id=g.category_id
      $whereSql
      ORDER BY $orderSql
      LIMIT :lim OFFSET :off";
$st = $pdo->prepare($sql);
foreach ($args as $k => $v) {
    $st->bindValue($k, $v);
}
$st->bindValue(':lim', $perPage, PDO::PARAM_INT);
$st->bindValue(':off', $offset, PDO::PARAM_INT);
$st->execute();
$rows = $st->fetchAll(PDO::FETCH_ASSOC);

/* FILTER DATA */
$cats      = $pdo->query("SELECT id,name FROM categories ORDER BY name ASC")->fetchAll(PDO::FETCH_ASSOC);
$providers = $pdo->query("SELECT DISTINCT provider FROM games WHERE provider IS NOT NULL AND provider<>'' ORDER BY provider ASC")->fetchAll(PDO::FETCH_COLUMN);

require __DIR__ . '/../inc/header.php';
?>
<!-- Expose CSRF for AJAX -->
<meta name="csrf-token" content="<?= h($_SESSION['csrf'] ?? ($_SESSION['csrf_token'] ?? '')) ?>">

<section class="section">
  <div class="container">
    <div class="level">
      <div class="level-left"><h1 class="title">Manage Games</h1></div>
      <div class="level-right" style="gap:0.5rem; align-items:center;">
        <a class="button is-primary is-light" href="/admin/games/edit.php">Add Game</a>
        <a class="button is-link is-light" href="/admin/games/externalimport.php">External Import</a>
        <!-- Export ALL Games (separate POST form) -->
        <form method="post" style="margin-left:0.5rem;">
          <?php csrf_field(); ?>
          <input type="hidden" name="export_all" value="1">
          <button class="button is-success is-light" type="submit">
            Export ALL Games
          </button>
        </form>
      </div>
    </div>

    <?php if ($featuredHint): ?>
      <article class="message is-warning">
        <div class="message-body"><?= nl2br(h($featuredHint)) ?></div>
      </article>
    <?php endif; ?>

    <?php if ($msg): ?><div class="notification is-success"><?= h($msg) ?></div><?php endif; ?>
    <?php if ($err): ?><div class="notification is-danger"><?= h($err) ?></div><?php endif; ?>

    <!-- Filters -->
    <form method="get" class="box" style="border-radius:12px;">
      <div class="columns is-multiline">
        <div class="column is-4">
          <label class="label">Search</label>
          <input class="input" name="q" value="<?= h($q) ?>" placeholder="Name, slug, external id…">
        </div>
        <div class="column is-3">
          <label class="label">Category</label>
          <div class="select is-fullwidth">
            <select name="cat">
              <option value="0">All</option>
              <?php foreach ($cats as $c): ?>
                <option value="<?= (int)$c['id'] ?>" <?= $cat === (int)$c['id'] ? 'selected' : ''; ?>><?= h($c['name']) ?></option>
              <?php endforeach; ?>
            </select>
          </div>
        </div>
        <div class="column is-2">
          <label class="label">Provider</label>
          <div class="select is-fullwidth">
            <select name="provider">
              <option value="">All</option>
              <?php foreach ($providers as $p): ?>
                <option value="<?= h($p) ?>" <?= $prov === $p ? 'selected' : ''; ?>><?= h($p) ?></option>
              <?php endforeach; ?>
            </select>
          </div>
        </div>
        <div class="column is-1">
          <label class="label">Status</label>
          <div class="select is-fullwidth">
            <select name="status">
              <option value="any" <?= $status === 'any' ? 'selected' : ''; ?>>Any</option>
              <option value="1"   <?= $status === '1' ? 'selected' : ''; ?>>Published</option>
              <option value="0"   <?= $status === '0' ? 'selected' : ''; ?>>Hidden</option>
            </select>
          </div>
        </div>
        <div class="column is-1">
          <label class="label">Featured</label>
          <div class="select is-fullwidth">
            <select name="feat" <?= $hasFeatured ? '' : 'disabled'; ?>>
              <option value="any" <?= $feat === 'any' ? 'selected' : ''; ?>>Any</option>
              <option value="1"   <?= $feat === '1' ? 'selected' : ''; ?>>Yes</option>
              <option value="0"   <?= $feat === '0' ? 'selected' : ''; ?>>No</option>
            </select>
          </div>
        </div>
        <div class="column is-1">
          <label class="label">Sort</label>
          <div class="select is-fullwidth">
            <select name="sort">
              <option value="new"      <?= $sort === 'new' ? 'selected' : ''; ?>>New</option>
              <option value="popular"  <?= $sort === 'popular' ? 'selected' : ''; ?>>Popular</option>
              <option value="name"     <?= $sort === 'name' ? 'selected' : ''; ?>>A–Z</option>
              <option value="featured" <?= $sort === 'featured' ? 'selected' : ''; ?> <?= $hasFeatured ? '' : 'disabled'; ?>>Featured</option>
            </select>
          </div>
        </div>
        <div class="column is-1">
          <label class="label">Per</label>
          <div class="select is-fullwidth">
            <select name="per">
              <?php foreach ([10, 20, 30, 50, 100] as $pp): ?>
                <option value="<?= $pp ?>" <?= $perPage === $pp ? 'selected' : ''; ?>><?= $pp ?></option>
              <?php endforeach; ?>
            </select>
          </div>
        </div>
        <div class="column is-12">
          <button class="button is-primary">Apply</button>
          <a class="button is-light" href="/admin/games/manage.php">Reset</a>
          <span class="ml-3 has-text-grey">Found <strong><?= number_format($total) ?></strong> result(s)</span>
        </div>
      </div>
    </form>

    <!-- Bulk actions (selected rows) -->
    <form method="post" id="games-bulk-form">
      <?php csrf_field(); ?>
      <div class="level">
        <div class="level-left">
          <div class="field has-addons">
            <div class="control">
              <div class="select">
                <select name="bulk_action" required>
                  <option value="">Bulk action…</option>
                  <option value="publish">Publish</option>
                  <option value="unpublish">Unpublish</option>
                  <option value="delete">Delete</option>
                  <?php if ($hasFeatured): ?>
                    <option value="feature_on">Set Featured</option>
                    <option value="feature_off">Remove Featured</option>
                  <?php endif; ?>
                  <option value="export_json">Export as JSON (selected)</option>
                </select>
              </div>
            </div>
            <div class="control">
              <button class="button is-danger" type="submit">Apply</button>
            </div>
          </div>
        </div>
        <div class="level-right">
          <!-- Optionally add a separate "Export Selected" button here if you want -->
        </div>
      </div>

      <div class="table-container">
        <table class="table is-striped is-hoverable is-fullwidth">
          <thead>
          <tr>
            <th><label class="checkbox"><input type="checkbox" id="check-all"></label></th>
            <th>Game</th>
            <th>Provider / Ext.ID</th>
            <th>Category</th>
            <?php if ($hasFeatured): ?><th>Featured</th><?php endif; ?>
            <th>Status</th>
            <th>Plays</th>
            <th>Created</th>
            <th style="width:160px;">Actions</th>
          </tr>
          </thead>
          <tbody>
          <?php if (!$rows): ?>
            <tr>
              <td colspan="<?= $hasFeatured ? 9 : 8 ?>" class="has-text-centered has-text-grey">No games.</td>
            </tr>
          <?php else: foreach ($rows as $r): ?>
            <tr>
              <td>
                <label class="checkbox">
                  <input type="checkbox" name="ids[]" value="<?= (int)$r['id'] ?>">
                </label>
              </td>
              <td>
                <div style="display:flex; gap:10px; align-items:center;">
                  <img src="<?= h($r['thumb_url'] ?: '/assets/images/placeholder-thumb.jpg') ?>" alt="" style="width:56px;height:56px;object-fit:cover;border-radius:8px;">
                  <div>
                    <strong><?= h($r['name']) ?></strong><br>
                    <span class="is-size-7 has-text-grey"><?= h($r['slug']) ?></span>
                  </div>
                </div>
              </td>
              <td>
                <span class="tag is-light"><?= h($r['provider'] ?: '—') ?></span><br>
                <span class="is-size-7"><?= h($r['external_id'] ?: '—') ?></span>
              </td>
              <td><?= $r['category_name'] ? h($r['category_name']) : '—' ?></td>
              <?php if ($hasFeatured): ?>
                <td>
                  <?php $f = (int)($r['is_featured'] ?? 0); ?>
                  <button
                    class="button is-small js-toggle-feature <?= $f ? 'is-warning is-light' : '' ?>"
                    data-id="<?= (int)$r['id'] ?>"
                    data-set="<?= $f ? 0 : 1 ?>"
                    title="<?= $f ? 'Click to unfeature' : 'Click to feature' ?>"
                    type="button"
                  >
                    <?= $f ? '★ Featured' : '☆ Feature' ?>
                  </button>
                </td>
              <?php endif; ?>
              <td>
                <?php if ((int)$r['is_published'] === 1): ?>
                  <span class="tag is-success">Published</span>
                <?php else: ?>
                  <span class="tag is-warning">Hidden</span>
                <?php endif; ?>
              </td>
              <td><?= (int)$r['plays'] ?></td>
              <td class="is-size-7"><?= h($r['created_at']) ?></td>
              <td>
                <div class="buttons are-small">
                  <a class="button is-link is-light" href="/pages/game.php?slug=<?= urlencode($r['slug']) ?>" target="_blank">View</a>
                  <a class="button is-info is-light" href="/admin/games/edit.php?id=<?= (int)$r['id'] ?>">Edit</a>
                </div>
              </td>
            </tr>
          <?php endforeach; endif; ?>
          </tbody>
        </table>
      </div>
    </form>

    <!-- Pagination -->
    <?php if ($pages > 1): ?>
      <nav class="pagination is-centered mt-4" role="navigation" aria-label="pagination">
        <?php
        $base = $_GET;
        $prev = $page > 1 ? array_merge($base, ['page' => $page - 1]) : null;
        $next = $page < $pages ? array_merge($base, ['page' => $page + 1]) : null;
        $mk   = function ($p) use ($base) {
            $x       = $base;
            $x['page'] = $p;
            return '?' . http_build_query($x);
        };
        ?>
        <a class="pagination-previous" <?= $page <= 1 ? 'disabled' : ''; ?> href="<?= $prev ? ('?' . http_build_query($prev)) : '#'; ?>">Previous</a>
        <a class="pagination-next" <?= $page >= $pages ? 'disabled' : ''; ?> href="<?= $next ? ('?' . http_build_query($next)) : '#'; ?>">Next page</a>
        <ul class="pagination-list">
          <?php
          $win   = 2;
          $start = max(1, $page - $win);
          $end   = min($pages, $page + $win);
          if ($start > 1) {
              echo '<li><a class="pagination-link" href="' . $mk(1) . '">1</a></li>';
              if ($start > 2) {
                  echo '<li><span class="pagination-ellipsis">&hellip;</span></li>';
              }
          }
          for ($p = $start; $p <= $end; $p++) {
              $cur = $p === $page ? ' is-current' : '';
              echo '<li><a class="pagination-link' . $cur . '" href="' . $mk($p) . '">' . $p . '</a></li>';
          }
          if ($end < $pages) {
              if ($end < $pages - 1) {
                  echo '<li><span class="pagination-ellipsis">&hellip;</span></li>';
              }
              echo '<li><a class="pagination-link" href="' . $mk($pages) . '">' . $pages . '</a></li>';
          }
          ?>
        </ul>
      </nav>
    <?php endif; ?>
  </div>
</section>

<?php require __DIR__ . '/../inc/footer.php'; ?>

<script>
// Master "check all" checkbox
document.addEventListener('DOMContentLoaded', function () {
  const chkAll = document.getElementById('check-all');
  if (chkAll) {
    chkAll.addEventListener('change', function () {
      const checked = chkAll.checked;
      document.querySelectorAll('input[name="ids[]"]').forEach(function (cb) {
        cb.checked = checked;
      });
    });
  }
});

// AJAX feature toggle
(function () {
  const token = document.querySelector('meta[name="csrf-token"]')?.getAttribute('content') || '';
  function setBtnLoading(btn, yes) {
    btn.disabled = !!yes;
    if (yes) {
      btn.dataset._text = btn.textContent;
      btn.textContent = '…';
    } else if (btn.dataset._text) {
      btn.textContent = btn.dataset._text;
      delete btn.dataset._text;
    }
  }
  async function toggleFeature(btn) {
    const id  = btn.getAttribute('data-id');
    const set = btn.getAttribute('data-set');
    if (!id || (set !== '0' && set !== '1')) return;
    setBtnLoading(btn, true);
    try {
      const res = await fetch('/admin/games/feature_toggle.php', {
        method: 'POST',
        headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
        body: new URLSearchParams({ id, set, csrf: token })
      });
      const json = await res.json();
      if (!json.ok) throw new Error(json.error || 'Request failed');

      const featured = Number(json.is_featured) === 1;
      btn.classList.toggle('is-warning', featured);
      btn.classList.add('is-light');
      btn.textContent = featured ? '★ Featured' : '☆ Feature';
      btn.setAttribute('data-set', featured ? '0' : '1');
      btn.title = featured ? 'Click to unfeature' : 'Click to feature';
    } catch (err) {
      alert('Failed: ' + err.message);
    } finally {
      setBtnLoading(btn, false);
    }
  }
  document.addEventListener('click', function (e) {
    const btn = e.target.closest('.js-toggle-feature');
    if (!btn) return;
    e.preventDefault();
    toggleFeature(btn);
  });
})();
</script>