Add SQLite indexes for contenus page language/tag queries + WIP: Peertube orphans, dialogs, contact decoupling, context note, finality types

app/public/admin/actions/peertube-relink.php

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+<?php
+/**
+ * PeerTube video relink endpoint (admin).
+ *
+ * POST /admin/actions/peertube-relink.php
+ * Body: JSON { thesis_id: 123, uuid: "bmpQZTUPv4ou8ufiwajV63" }
+ *
+ * Links an existing PeerTube video to a thesis by inserting a thesis_files row
+ * with file_path = 'peertube_ids:{uuid}'. Only videos that are on the channel
+ * but NOT linked to any TFE can be relinked.
+ */
+require_once __DIR__ . '/../../../bootstrap.php';
+require_once __DIR__ . '/../../../src/AdminAuth.php';
+AdminAuth::requireLogin();
+
+function peertubeRelinkError(int $code, string $message): never {
+    http_response_code($code);
+    header('Content-Type: application/json');
+    echo json_encode(['ok' => false, 'error' => $message]);
+    exit;
+}
+
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    peertubeRelinkError(405, 'Méthode non autorisée.');
+}
+
+$csrfHeader = $_SERVER['HTTP_X_CSRF_TOKEN'] ?? '';
+if (!isset($_SESSION['csrf_token'])
+    || !hash_equals($_SESSION['csrf_token'], $csrfHeader)) {
+    peertubeRelinkError(403, 'Token CSRF invalide.');
+}
+
+$body = json_decode(file_get_contents('php://input'), true);
+if (!is_array($body)) {
+    peertubeRelinkError(400, 'JSON invalide.');
+}
+
+$thesisId = filter_var($body['thesis_id'] ?? '', FILTER_VALIDATE_INT);
+$uuid     = trim($body['uuid'] ?? '');
+
+if (!$thesisId || $uuid === '') {
+    peertubeRelinkError(400, 'Paramètres invalides (thesis_id + uuid requis).');
+}
+
+// Validate UUID format (shortUUID or full UUID)
+if (!preg_match('/^[a-zA-Z0-9\-_]+$/', $uuid)) {
+    peertubeRelinkError(400, 'UUID invalide.');
+}
+
+require_once APP_ROOT . '/src/Database.php';
+require_once APP_ROOT . '/src/PeerTubeService.php';
+
+$db = new Database();
+
+if (!PeerTubeService::isConfigured($db)) {
+    peertubeRelinkError(503, 'PeerTube non configuré.');
+}
+
+// Check thesis exists
+$thesis = $db->getThesis($thesisId);
+if (!$thesis) {
+    peertubeRelinkError(404, 'TFE introuvable.');
+}
+
+// Check this UUID is not already linked to this thesis
+$pdo = $db->getConnection();
+$stmt = $pdo->prepare(
+    "SELECT id FROM thesis_files
+     WHERE thesis_id = ? AND file_path = ?"
+);
+$stmt->execute([$thesisId, 'peertube_ids:' . $uuid]);
+if ($stmt->fetch()) {
+    peertubeRelinkError(409, 'Cette vidéo est déjà liée à ce TFE.');
+}
+
+// Verify the video exists on the channel
+$info = PeerTubeService::fetchVideoInfo($db, $uuid);
+if ($info === null) {
+    peertubeRelinkError(404, 'Vidéo introuvable sur PeerTube.');
+}
+
+// Verify it's not already linked to another TFE
+$stmt = $pdo->prepare(
+    "SELECT t.identifier FROM thesis_files tf
+     JOIN theses t ON t.id = tf.thesis_id
+     WHERE tf.file_path = ? AND t.deleted_at IS NULL"
+);
+$stmt->execute(['peertube_ids:' . $uuid]);
+$existing = $stmt->fetch();
+if ($existing) {
+    peertubeRelinkError(409,
+        'Cette vidéo est déjà liée au TFE ' . htmlspecialchars($existing['identifier'] ?? '?')
+        . '. Dé-liez-la d\'abord avant de la relier à un autre.'
+    );
+}
+
+// Determine file type from PeerTube info
+$videoName = $info['name'] ?? $uuid;
+$fileType  = 'video'; // default
+$catId     = (int)($info['category']['id'] ?? 0);
+if ($catId === 16) {
+    $fileType = 'audio';
+}
+
+$db->insertThesisFile(
+    $thesisId,
+    $fileType,
+    'peertube_ids:' . $uuid,
+    $videoName,
+    0,                // size unknown (not on disk)
+    'video/mp4',      // PeerTube streams HLS, mime is nominal
+    null,
+    null
+);
+
+$newId = $pdo->lastInsertId();
+
+error_log("[peertube-relink] thesis_id=$thesisId uuid=$uuid file_type=$fileType new_id=$newId");
+
+header('Content-Type: application/json');
+echo json_encode([
+    'ok'      => true,
+    'id'      => (int)$newId,
+    'message' => 'Vidéo PeerTube reliée avec succès.',
+]);
+exit;