Merge remote-tracking branch 'ui/master'

ui/task-queue.js

@@ -0,0 +1,86 @@
+"use strict";
+
+import * as store from "./store";
+
+const queue = new Set();
+const staging = new Set();
+
+function queueTask(task) {
+  staging.delete(task);
+  task.status = "queued";
+  queue.add(task);
+}
+
+function deleteTask(task) {
+  staging.delete(task);
+  queue.delete(task);
+}
+
+function getQueue() {
+  return queue;
+}
+
+function clear() {
+  queue.clear();
+}
+
+function getStaging() {
+  return staging;
+}
+
+function clearStaging() {
+  staging.clear();
+}
+
+function stageSpv(task) {
+  staging.add(task);
+}
+
+function stageDownload(task) {
+  staging.add(task);
+}
+
+function commit(tasks, callback) {
+  const devices = {};
+  for (const t of tasks) {
+    devices[t.device] = devices[t.device] || [];
+    devices[t.device].push(t);
+    queueTask(t);
+  }
+
+  return new Promise(resolve => {
+    let counter = 1;
+    for (const [deviceId, tasks2] of Object.entries(devices)) {
+      ++counter;
+      store
+        .postTasks(deviceId, tasks)
+        .then(connectionRequestStatus => {
+          for (const t of tasks2) {
+            if (t.status === "pending") t.status = "stale";
+            else if (t.status === "done") queue.delete(t);
+          }
+          callback(deviceId, null, connectionRequestStatus, tasks2);
+          if (--counter === 0) resolve();
+        })
+        .catch(err => {
+          for (const t of tasks2) t.status = "stale";
+          callback(deviceId, err, null, tasks2);
+          if (--counter === 0) resolve();
+        });
+    }
+
+    if (--counter === 0) resolve();
+  });
+}
+
+export {
+  queueTask,
+  deleteTask,
+  clear,
+  getQueue,
+  getStaging,
+  clearStaging,
+  stageSpv,
+  stageDownload,
+  commit
+};