Add profile directory to web UI (#11688)

* Add profile directory to web UI

* Add a line of bio to the directory

app/javascript/mastodon/actions/directory.js

@@ -0,0 +1,61 @@
+import api from '../api';
+import { importFetchedAccounts } from './importer';
+import { fetchRelationships } from './accounts';
+
+export const DIRECTORY_FETCH_REQUEST = 'DIRECTORY_FETCH_REQUEST';
+export const DIRECTORY_FETCH_SUCCESS = 'DIRECTORY_FETCH_SUCCESS';
+export const DIRECTORY_FETCH_FAIL    = 'DIRECTORY_FETCH_FAIL';
+
+export const DIRECTORY_EXPAND_REQUEST = 'DIRECTORY_EXPAND_REQUEST';
+export const DIRECTORY_EXPAND_SUCCESS = 'DIRECTORY_EXPAND_SUCCESS';
+export const DIRECTORY_EXPAND_FAIL    = 'DIRECTORY_EXPAND_FAIL';
+
+export const fetchDirectory = params => (dispatch, getState) => {
+  dispatch(fetchDirectoryRequest());
+
+  api(getState).get('/api/v1/directory', { params: { ...params, limit: 20 } }).then(({ data }) => {
+    dispatch(importFetchedAccounts(data));
+    dispatch(fetchDirectorySuccess(data));
+    dispatch(fetchRelationships(data.map(x => x.id)));
+  }).catch(error => dispatch(fetchDirectoryFail(error)));
+};
+
+export const fetchDirectoryRequest = () => ({
+  type: DIRECTORY_FETCH_REQUEST,
+});
+
+export const fetchDirectorySuccess = accounts => ({
+  type: DIRECTORY_FETCH_SUCCESS,
+  accounts,
+});
+
+export const fetchDirectoryFail = error => ({
+  type: DIRECTORY_FETCH_FAIL,
+  error,
+});
+
+export const expandDirectory = params => (dispatch, getState) => {
+  dispatch(expandDirectoryRequest());
+
+  const loadedItems = getState().getIn(['user_lists', 'directory', 'items']).size;
+
+  api(getState).get('/api/v1/directory', { params: { ...params, offset: loadedItems, limit: 20 } }).then(({ data }) => {
+    dispatch(importFetchedAccounts(data));
+    dispatch(expandDirectorySuccess(data));
+    dispatch(fetchRelationships(data.map(x => x.id)));
+  }).catch(error => dispatch(expandDirectoryFail(error)));
+};
+
+export const expandDirectoryRequest = () => ({
+  type: DIRECTORY_EXPAND_REQUEST,
+});
+
+export const expandDirectorySuccess = accounts => ({
+  type: DIRECTORY_EXPAND_SUCCESS,
+  accounts,
+});
+
+export const expandDirectoryFail = error => ({
+  type: DIRECTORY_EXPAND_FAIL,
+  error,
+});