FEATURE: Make user status on mentions on docs live (#117)

This makes status on mentions in docs receive live updates 
from the server.

assets/javascripts/discourse/models/docs.js

@@ -1,6 +1,7 @@
 import EmberObject from "@ember/object";
 import { ajax } from "discourse/lib/ajax";
 import Topic from "discourse/models/topic";
+import User from "discourse/models/user";
 import { getDocs } from "../../lib/get-docs";
 
 const Docs = EmberObject.extend({});
@@ -41,6 +42,9 @@ Docs.reopenClass({
         (topic) => Topic.create(topic)
       );
       data.topic = Topic.create(data.topic);
+      data.topic.post_stream?.posts.forEach((post) =>
+        this._initUserModels(post)
+      );
       return data;
     });
   },
@@ -53,6 +57,12 @@ Docs.reopenClass({
       return data;
     });
   },
+
+  _initUserModels(post) {
+    if (post.mentioned_users) {
+      post.mentioned_users = post.mentioned_users.map((u) => User.create(u));
+    }
+  },
 });
 
 export default Docs;

test/javascripts/acceptance/docs-user-status-test.js

@@ -0,0 +1,63 @@
+import {
+  acceptance,
+  publishToMessageBus,
+} from "discourse/tests/helpers/qunit-helpers";
+import { test } from "qunit";
+import docsFixtures from "../fixtures/docs";
+import { visit } from "@ember/test-helpers";
+
+acceptance("Docs - user status", function (needs) {
+  needs.user();
+  needs.site({ docs_path: "docs" });
+  needs.settings({
+    docs_enabled: true,
+  });
+
+  const mentionedUserId = 1;
+
+  needs.pretender((server, helper) => {
+    server.get("/docs.json", () => {
+      docsFixtures.topic = {
+        post_stream: {
+          posts: [
+            {
+              id: 427,
+              topic_id: 1,
+              username: "admin1",
+              cooked:
+                '<p>This is a document.</p>\n<p>I am mentioning another user <a class="mention" href="/u/andrei4">@andrei4</a></p>',
+              mentioned_users: [
+                {
+                  id: mentionedUserId,
+                  username: "andrei4",
+                  name: "andrei",
+                  avatar_template:
+                    "/letter_avatar_proxy/v4/letter/a/a87d85/{size}.png",
+                  assign_icon: "user-plus",
+                  assign_path: "/u/andrei4/activity/assigned",
+                },
+              ],
+            },
+          ],
+          stream: [427],
+        },
+      };
+
+      return helper.response(docsFixtures);
+    });
+  });
+
+  test("user status on mentions is live", async function (assert) {
+    await visit("/docs?topic=1");
+    assert.dom(".mention .user-status").doesNotExist();
+
+    const newStatus = { emoji: "surfing_man", description: "surfing" };
+    await publishToMessageBus(`/user-status`, { [mentionedUserId]: newStatus });
+    assert
+      .dom(".mention .user-status")
+      .hasAttribute("title", newStatus.description);
+
+    await publishToMessageBus(`/user-status`, { [mentionedUserId]: null });
+    assert.dom(".mention .user-status").doesNotExist();
+  });
+});