folio/templates/admin_stats.php

<?php
$_statsSaved  = isset($_GET['saved']);
$_statsError  = ($_GET['error'] ?? '') === 'write';
$_readable    = $adminData['stats_readable']  ?? false;
$_books       = $adminData['stats_books']     ?? [];
$_asList      = $adminData['stats_as']        ?? [];
$_pagesByDay  = $adminData['stats_pages_by_day'] ?? [];
$_ipData      = $adminData['stats_ip_data']   ?? [];
$_botPatterns = $adminData['bot_patterns']    ?? [];
$_allUas      = $adminData['stats_all_uas']  ?? [];
?>

<?php if ($_statsSaved): ?>
<div class="alert alert-success py-2 mb-3">Configuration enregistrée.</div>
<?php elseif ($_statsError): ?>
<div class="alert alert-danger py-2 mb-3">Impossible d'enregistrer : fichier non accessible en écriture.</div>
<?php endif; ?>

<?php if (!$_readable): ?>
<div class="alert alert-warning">
    Les logs ne sont pas lisibles. Vérifiez le pattern dans l'onglet <a href="/admin/searches">Recherches</a>
    et que <code>www-data</code> appartient au groupe <code>adm</code>.
</div>
<?php else: ?>

<p class="text-muted small mb-4">14 derniers jours · tous les chemins · flux RSS XML</p>

<script>
var FOLIO_PAGES_BY_DAY  = <?= json_encode($_pagesByDay, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) ?>;
var FOLIO_AS_LIST       = <?= json_encode($_asList, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) ?>;
var FOLIO_IP_DATA       = <?= json_encode($_ipData, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) ?>;
var FOLIO_BOT_PATTERNS  = <?= json_encode($_botPatterns, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) ?>;
var FOLIO_ALL_UAS       = <?= json_encode($_allUas, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) ?>;
var FOLIO_CSRF          = <?= json_encode($_session['csrf'] ?? '', JSON_UNESCAPED_UNICODE) ?>;
</script>

<div class="card mb-4">
    <div class="card-header bg-transparent py-2 small fw-semibold d-flex justify-content-between">
        <span>Pages les plus visitées</span>
        <span class="text-muted" id="stats-pages-count"></span>
    </div>
    <div class="card-body p-0" id="stats-pages-container">
        <p class="text-muted p-3 mb-0">Chargement…</p>
    </div>
    <div class="card-footer bg-transparent border-top px-3 pt-3 pb-2" id="stats-trend-container"></div>
    <div class="card-footer bg-transparent border-top px-3 pt-3 pb-2" id="stats-multiline-container"></div>
</div>

<div class="card mb-4">
    <div class="card-header bg-transparent py-2 small fw-semibold">Visiteurs par pays</div>
    <div class="card-body p-3" id="stats-country-container">
        <p class="text-muted mb-0">Chargement…</p>
    </div>
</div>

<div class="row g-4">
    <!-- Livres -->
    <div class="col-lg-6">
        <div class="card h-100">
            <div class="card-header bg-transparent py-2 small fw-semibold d-flex justify-content-between">
                <span>Livres consultés</span>
                <span class="text-muted"><?= count($_books) ?> livres</span>
            </div>
            <div class="card-body p-0">
                <?php if (empty($_books)): ?>
                    <p class="text-muted p-3 mb-0">Aucun accès à <code>/book/</code> dans les logs.</p>
                <?php else: ?>
                <div class="table-responsive">
                <table class="table table-sm table-hover mb-0 small">
                    <tbody>
                    <?php
                    $maxB  = max($_books) ?: 1;
                    $rankB = 0;
                    foreach ($_books as $url => $hits):
                        $rankB++;
                        $slug = rawurldecode(substr($url, 6));
                        $pct  = round($hits / $maxB * 100);
                        ?>
                    <tr>
                        <td class="text-muted ps-3" style="width:2rem"><?= $rankB ?></td>
                        <td>
                            <a href="<?= htmlspecialchars($url) ?>" target="_blank"
                               class="text-decoration-none text-truncate d-block" style="max-width:260px"
                               title="<?= htmlspecialchars($slug) ?>">
                                <?= htmlspecialchars($slug) ?>
                            </a>
                            <div class="progress mt-1" style="height:3px">
                                <div class="progress-bar bg-success" style="width:<?= $pct ?>%"></div>
                            </div>
                        </td>
                        <td class="text-end fw-semibold pe-3"><?= number_format($hits, 0, ',', '\u{202F}') ?> <span class="text-muted fw-normal">vis.</span></td>
                    </tr>
                    <?php endforeach; ?>
                    </tbody>
                </table>
                </div>
                <?php endif; ?>
            </div>
        </div>
    </div>
</div><!-- /row -->

<!-- Agents détectés -->
<div class="card mt-4">
    <div class="card-header bg-transparent py-2 small fw-semibold d-flex justify-content-between align-items-center">
        <span>Agents détectés <span class="text-muted fw-normal" id="agents-count"></span></span>
        <button class="btn btn-sm btn-outline-secondary py-0" type="button"
                data-bs-toggle="collapse" data-bs-target="#agents-edit-panel">
            Gérer les patterns
        </button>
    </div>
    <div class="card-body p-0" id="stats-agents-container">
        <p class="text-muted p-3 mb-0">Chargement…</p>
    </div>

    <!-- Panneau d'édition des patterns bots -->
    <div id="agents-edit-panel" class="collapse">
        <div class="card-footer bg-transparent border-top p-3">
            <p class="small text-muted mb-2">Un pattern par ligne (correspondance insensible à la casse, recherche partielle dans le User-Agent).</p>
            <form method="post" action="/?action=admin_save_bots">
                <input type="hidden" name="_csrf" value="<?= htmlspecialchars($_session['csrf'] ?? '') ?>">
                <textarea name="bot_patterns" class="form-control form-control-sm font-monospace mb-2"
                          rows="12" style="font-size:.75rem"><?= htmlspecialchars(implode("\n", $_botPatterns)) ?></textarea>
                <button type="submit" class="btn btn-sm btn-primary">Enregistrer les patterns</button>
            </form>
        </div>
    </div>
</div>

<?php endif; // readable?>

<script src="/assets/js/admin-stats.js" defer></script>