PHP_AdminTool_Projekt/public/views/logs.php

<?php
declare(strict_types=1);

/**
 * Log Viewer (Ansicht).
 *
 * Erwartete Variablen:
 * @var array<int, array{name:string, size:int, mtime:int}> $files
 * @var string $selectedFile
 * @var array{name:string, size:int, mtime:int}|null $fileMeta
 * @var array<int, array{ts:string|null, level:string|null, message:string, context:array<string,mixed>|null, raw:string}> $entries
 * @var string $filterLevel
 * @var string $searchQuery
 * @var int $lines
 * @var string|null $error
 */
?>

<div class="d-sm-flex align-items-center justify-content-between mb-4">
    <h1 class="h3 mb-0 text-gray-800">Log Viewer</h1>
</div>

<?php if (!empty($error)) : ?>
    <div class="alert alert-danger" role="alert">
        <?php echo htmlspecialchars((string)$error, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?>
    </div>
<?php endif; ?>

<div class="card shadow mb-4">
    <div class="card-header py-3">
        <h6 class="m-0 font-weight-bold text-primary">Filter</h6>
    </div>
    <div class="card-body">
        <form method="get" action="../index.php">
            <input type="hidden" name="route" value="logs">

            <div class="form-row">
                <div class="form-group col-md-4">
                    <label for="file">Log-Datei</label>
                    <select class="form-control" id="file" name="file">
                        <?php foreach (($files ?? []) as $f) : ?>
                            <?php $name = (string)($f['name'] ?? ''); ?>
                            <option value="<?php echo htmlspecialchars($name, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?>"
                                <?php echo ($name === (string)$selectedFile) ? 'selected' : ''; ?>>
                                <?php echo htmlspecialchars($name, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?>
                            </option>
                        <?php endforeach; ?>
                    </select>
                </div>

                <div class="form-group col-md-2">
                    <label for="level">Level</label>
                    <select class="form-control" id="level" name="level">
                        <?php
                        $levels = ['', 'ERROR', 'WARNING', 'INFO', 'DEBUG'];
                        foreach ($levels as $lvl) :
                            $label = ($lvl === '') ? 'Alle' : $lvl;
                            ?>
                            <option value="<?php echo htmlspecialchars($lvl, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?>"
                                <?php echo ((string)$filterLevel === (string)$lvl) ? 'selected' : ''; ?>>
                                <?php echo htmlspecialchars($label, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?>
                            </option>
                        <?php endforeach; ?>
                    </select>
                </div>

                <div class="form-group col-md-3">
                    <label for="q">Suche</label>
                    <input type="text" class="form-control" id="q" name="q"
                           value="<?php echo htmlspecialchars((string)$searchQuery, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?>"
                           placeholder="Text in message/context">
                </div>

                <div class="form-group col-md-2">
                    <label for="lines">Zeilen</label>
                    <input type="number" class="form-control" id="lines" name="lines"
                           value="<?php echo (int)$lines; ?>" min="1" max="2000">
                </div>

                <div class="form-group col-md-1 d-flex align-items-end">
                    <button type="submit" class="btn btn-primary btn-block">
                        Anzeigen
                    </button>
                </div>
            </div>

            <?php if (is_array($fileMeta)) : ?>
                <div class="small text-gray-600">
                    Datei: <strong><?php echo htmlspecialchars((string)$fileMeta['name'], ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?></strong>
                    · Größe: <?php echo number_format((int)$fileMeta['size'], 0, ',', '.'); ?> Bytes
                    · Stand: <?php echo ($fileMeta['mtime'] ?? 0) > 0 ? date('d.m.Y H:i:s', (int)$fileMeta['mtime']) : 'n/a'; ?>
                </div>
            <?php endif; ?>
        </form>
    </div>
</div>

<div class="card shadow mb-4">
    <div class="card-header py-3 d-flex align-items-center justify-content-between">
        <h6 class="m-0 font-weight-bold text-primary">Einträge (neueste unten)</h6>
        <a class="btn btn-sm btn-outline-secondary"
           href="../index.php?route=logs&amp;file=<?php echo urlencode((string)$selectedFile); ?>&amp;level=<?php echo urlencode((string)$filterLevel); ?>&amp;q=<?php echo urlencode((string)$searchQuery); ?>&amp;lines=<?php echo (int)$lines; ?>">
            Refresh
        </a>
    </div>

    <div class="card-body">
        <?php if (empty($entries)) : ?>
            <div class="text-gray-600">Keine Einträge gefunden.</div>
        <?php else : ?>
            <div class="table-responsive">
                <table class="table table-bordered table-sm" width="100%" cellspacing="0">
                    <thead>
                    <tr>
                        <th style="width: 170px;">Zeit</th>
                        <th style="width: 110px;">Level</th>
                        <th>Message</th>
                        <th style="width: 35%;">Context</th>
                    </tr>
                    </thead>
                    <tbody>
                    <?php foreach ($entries as $e) : ?>
                        <?php
                        $lvl = strtoupper((string)($e['level'] ?? ''));
                        $badge = 'badge-secondary';
                        if ($lvl === 'ERROR') { $badge = 'badge-danger'; }
                        if ($lvl === 'WARNING') { $badge = 'badge-warning'; }
                        if ($lvl === 'INFO') { $badge = 'badge-info'; }
                        if ($lvl === 'DEBUG') { $badge = 'badge-light'; }

                        $ctx = $e['context'] ?? null;
                        $ctxPretty = '';
                        if (is_array($ctx)) {
                            $ctxPretty = (string)json_encode($ctx, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
                        }
                        ?>
                        <tr>
                            <td><?php echo htmlspecialchars((string)($e['ts'] ?? ''), ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?></td>
                            <td>
                                    <span class="badge <?php echo $badge; ?>">
                                        <?php echo htmlspecialchars($lvl, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?>
                                    </span>
                            </td>
                            <td><?php echo htmlspecialchars((string)($e['message'] ?? ''), ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?></td>
                            <td>
                                <?php if ($ctxPretty !== '') : ?>
                                    <pre class="mb-0" style="white-space: pre-wrap;"><?php echo htmlspecialchars($ctxPretty, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8'); ?></pre>
                                <?php else : ?>
                                    <span class="text-gray-600">-</span>
                                <?php endif; ?>
                            </td>
                        </tr>
                    <?php endforeach; ?>
                    </tbody>
                </table>
            </div>

            <div class="small text-gray-600">
                Hinweis: Dieser Viewer lädt bewusst nur die letzten Zeilen (Tail), damit große Logfiles die Oberfläche nicht killen.
            </div>
        <?php endif; ?>
    </div>
</div>