Release v2.2.0

src/web/lib/background-tasks/tasks-adhoc/thumbnail-refresh-slide.js

@@ -0,0 +1,51 @@
+const TASK = {
+  taskType: 'slide-thumbnail-refresh'
+};
+
+async function fetchPlayerInternalBaseUrl(pool) {
+  const [rows] = await pool.query(
+    `SELECT internal_base_url
+     FROM d_players
+     WHERE device_id = '1'
+     LIMIT 1`
+  );
+
+  return String(rows && rows[0] && rows[0].internal_base_url || '').trim().replace(/\/$/, '') || null;
+}
+
+function registerSlideThumbnailRefreshTask(options) {
+  const backgroundTaskQueue = options && options.backgroundTaskQueue;
+  const captureSlideThumbnail = options && options.captureSlideThumbnail;
+  const pool = options && options.pool;
+  const common = options && options.common;
+  const mediaDir = String(options && options.mediaDir || '').trim();
+
+  if (!backgroundTaskQueue || typeof captureSlideThumbnail !== 'function' || !pool || !common || !mediaDir) {
+    throw new Error('registerSlideThumbnailRefreshTask requires the slide thumbnail dependencies.');
+  }
+
+  // Refresh the slide thumbnail for one slide id.
+  backgroundTaskQueue.setTaskHandler(TASK.taskType, async function (task) {
+    const payload = task && task.payload ? task.payload : {};
+    const slideId = Number(payload.slideId || 0);
+    if (!Number.isFinite(slideId) || slideId <= 0) {
+      throw new Error('Slide id is required.');
+    }
+
+    const playerInternalBaseUrl = await fetchPlayerInternalBaseUrl(pool);
+    if (!playerInternalBaseUrl) {
+      throw new Error('Player internal base URL is required.');
+    }
+
+    return captureSlideThumbnail({
+      pool: pool,
+      common: common,
+      mediaDir: mediaDir,
+      baseUrl: playerInternalBaseUrl,
+      slideId: slideId,
+      previousThumbnailPath: payload.previousThumbnailPath || null
+    });
+  });
+}
+
+module.exports = { registerSlideThumbnailRefreshTask };