Mitra: handle status context endpoint as a list of statuses

app/soapbox/__fixtures__/mitra-context.json

@@ -0,0 +1,107 @@
+[
+  {
+    "id": "017ed503-bc96-301a-e871-2c23b30ddd05",
+    "uri": "https://mitra.social/objects/017ed503-bc96-301a-e871-2c23b30ddd05",
+    "created_at": "2022-02-07T16:28:18.966874Z",
+    "account": {
+      "id": "017ed4f9-c121-2ae6-0805-15516cce02c3",
+      "username": "alex",
+      "acct": "alex",
+      "url": "https://mitra.social/users/alex",
+      "display_name": null,
+      "created_at": "2022-02-07T16:17:24.769229Z",
+      "note": null,
+      "avatar": null,
+      "header": null,
+      "fields": [],
+      "followers_count": 1,
+      "following_count": 1,
+      "statuses_count": 3,
+      "source": null,
+      "wallet_address": null
+    },
+    "content": "<span class=\"h-card\"><a class=\"u-url mention\" href=\"https://mitra.social/users/silverpill\">@silverpill</a></span> sup!",
+    "in_reply_to_id": null,
+    "reblog": null,
+    "visibility": "public",
+    "replies_count": 1,
+    "favourites_count": 0,
+    "reblogs_count": 0,
+    "media_attachments": [],
+    "mentions": [
+      {
+        "id": "dd4ebc18-269d-4c7b-a310-03d29c6ab551",
+        "username": "silverpill",
+        "acct": "silverpill",
+        "url": "https://mitra.social/users/silverpill"
+      }
+    ],
+    "tags": [],
+    "favourited": false,
+    "reblogged": false,
+    "ipfs_cid": null,
+    "token_id": null,
+    "token_tx_id": null
+  },
+  {
+    "id": "017ed505-5926-392f-256a-f86d5075df70",
+    "uri": "https://mitra.social/objects/017ed505-5926-392f-256a-f86d5075df70",
+    "created_at": "2022-02-07T16:30:04.582771Z",
+    "account": {
+      "id": "dd4ebc18-269d-4c7b-a310-03d29c6ab551",
+      "username": "silverpill",
+      "acct": "silverpill",
+      "url": "https://mitra.social/users/silverpill",
+      "display_name": "silverpill",
+      "created_at": "2021-11-06T21:08:57.441927Z",
+      "note": "Admin of <a href=\"https://mitra.social/\" rel=\"noopener noreferrer\">mitra.social</a> instance. It is running experimental ActivityPub server <a href=\"https://codeberg.org/silverpill/mitra\" rel=\"noopener noreferrer\">Mitra</a>.",
+      "avatar": "https://mitra.social/media/6a785bf7dd05f61c3590e8935aa49156a499ac30fd1e402f79e7e164adb36e2c.png",
+      "header": null,
+      "fields": [
+        {
+          "name": "Matrix",
+          "value": "@silverpill:poa.st"
+        },
+        {
+          "name": "Alt",
+          "value": "@silverpill@poa.st"
+        },
+        {
+          "name": "Code",
+          "value": "<a href=\"https://codeberg.org/silverpill/\" rel=\"noopener noreferrer\">https://codeberg.org/silverpill/</a>"
+        },
+        {
+          "name": "$XMR",
+          "value": "884y9LmsWY7PQNsyR7bJy1dvj91tuF5spVabyCnPk4KfQtSuzFbQobTFC7xSemJgVW1FWAwnJbjTZX5zZWbBrfkv62DB62d"
+        }
+      ],
+      "followers_count": 27,
+      "following_count": 15,
+      "statuses_count": 110,
+      "source": null,
+      "wallet_address": null
+    },
+    "content": "<span class=\"h-card\"><a class=\"u-url mention\" href=\"https://mitra.social/users/alex\">@alex</a></span> welcome",
+    "in_reply_to_id": "017ed503-bc96-301a-e871-2c23b30ddd05",
+    "reblog": null,
+    "visibility": "public",
+    "replies_count": 0,
+    "favourites_count": 1,
+    "reblogs_count": 0,
+    "media_attachments": [],
+    "mentions": [
+      {
+        "id": "017ed4f9-c121-2ae6-0805-15516cce02c3",
+        "username": "alex",
+        "acct": "alex",
+        "url": "https://mitra.social/users/alex"
+      }
+    ],
+    "tags": [],
+    "favourited": true,
+    "reblogged": false,
+    "ipfs_cid": null,
+    "token_id": null,
+    "token_tx_id": null
+  }
+]

app/soapbox/actions/__tests__/statuses-test.js

@@ -0,0 +1,29 @@
+import { Map as ImmutableMap } from 'immutable';
+
+import { STATUSES_IMPORT } from 'soapbox/actions/importer';
+import { __stub } from 'soapbox/api';
+import { mockStore } from 'soapbox/test_helpers';
+
+import { fetchContext } from '../statuses';
+
+describe('fetchContext()', () => {
+  it('handles Mitra context', done => {
+    const statuses = require('soapbox/__fixtures__/mitra-context.json');
+
+    __stub(mock => {
+      mock.onGet('/api/v1/statuses/017ed505-5926-392f-256a-f86d5075df70/context')
+        .reply(200, statuses);
+    });
+
+    const store = mockStore(ImmutableMap());
+
+    store.dispatch(fetchContext('017ed505-5926-392f-256a-f86d5075df70')).then(context => {
+      const actions = store.getActions();
+
+      expect(actions[3].type).toEqual(STATUSES_IMPORT);
+      expect(actions[3].statuses[0].id).toEqual('017ed503-bc96-301a-e871-2c23b30ddd05');
+
+      done();
+    }).catch(console.error);
+  });
+});

app/soapbox/actions/statuses.js

@@ -143,10 +143,18 @@ export function fetchContext(id) {
     dispatch({ type: CONTEXT_FETCH_REQUEST, id });
 
     return api(getState).get(`/api/v1/statuses/${id}/context`).then(({ data: context }) => {
-      const { ancestors, descendants } = context;
-      const statuses = ancestors.concat(descendants);
-      dispatch(importFetchedStatuses(statuses));
-      dispatch({ type: CONTEXT_FETCH_SUCCESS, id, ancestors, descendants });
+      if (Array.isArray(context)) {
+        // Mitra: returns a list of statuses
+        dispatch(importFetchedStatuses(context));
+      } else if (typeof context === 'object') {
+        // Standard Mastodon API returns a map with `ancestors` and `descendants`
+        const { ancestors, descendants } = context;
+        const statuses = ancestors.concat(descendants);
+        dispatch(importFetchedStatuses(statuses));
+        dispatch({ type: CONTEXT_FETCH_SUCCESS, id, ancestors, descendants });
+      } else {
+        throw context;
+      }
       return context;
     }).catch(error => {
       if (error.response && error.response.status === 404) {