Add announcements page

modern/src/Navigation.jsx

@@ -56,6 +56,7 @@ import GroupConnectionsPage from './settings/GroupConnectionsPage';
 import UserConnectionsPage from './settings/UserConnectionsPage';
 import LogsPage from './reports/LogsPage';
 import SharePage from './settings/SharePage';
+import AnnouncementPage from './settings/AnnouncementPage';
 
 const Navigation = () => {
   const navigate = useNavigate();
@@ -111,6 +112,7 @@ const Navigation = () => {
 
         <Route path="settings">
           <Route path="accumulators/:deviceId" element={<AccumulatorsPage />} />
+          <Route path="announcement" element={<AnnouncementPage />} />
           <Route path="calendars" element={<CalendarsPage />} />
           <Route path="calendar/:id" element={<CalendarPage />} />
           <Route path="calendar" element={<CalendarPage />} />

modern/src/resources/l10n/en.json

@@ -11,6 +11,7 @@
     "sharedRemove": "Remove",
     "sharedRemoveConfirm": "Remove item?",
     "sharedNoData": "No data",
+    "sharedSubject": "Subject",
     "sharedYes": "Yes",
     "sharedNo": "No",
     "sharedKm": "km",

modern/src/settings/AnnouncementPage.jsx

@@ -0,0 +1,106 @@
+import React, { useState } from 'react';
+import { useNavigate } from 'react-router-dom';
+import {
+  Accordion,
+  AccordionSummary,
+  AccordionDetails,
+  Typography,
+  Container,
+  TextField,
+  Button,
+} from '@mui/material';
+import ExpandMoreIcon from '@mui/icons-material/ExpandMore';
+import { useTranslation } from '../common/components/LocalizationProvider';
+import PageLayout from '../common/components/PageLayout';
+import SettingsMenu from './components/SettingsMenu';
+import { useCatchCallback } from '../reactHelper';
+import useSettingsStyles from './common/useSettingsStyles';
+import SelectField from '../common/components/SelectField';
+import { prefixString } from '../common/util/stringUtils';
+
+const AnnouncementPage = () => {
+  const navigate = useNavigate();
+  const classes = useSettingsStyles();
+  const t = useTranslation();
+
+  const [users, setUsers] = useState([]);
+  const [notificator, setNotificator] = useState();
+  const [message, setMessage] = useState({});
+
+  const handleSend = useCatchCallback(async () => {
+    const query = new URLSearchParams();
+    users.forEach((userId) => query.append('userId', userId));
+    const response = await fetch(`/api/notifications/send/${notificator}?${query.toString()}`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify(message),
+    });
+    if (response.ok) {
+      navigate(-1);
+    } else {
+      throw Error(await response.text());
+    }
+  }, [users, notificator, message, navigate]);
+
+  return (
+    <PageLayout menu={<SettingsMenu />} breadcrumbs={['serverAnnouncement']}>
+      <Container maxWidth="xs" className={classes.container}>
+        <Accordion defaultExpanded>
+          <AccordionSummary expandIcon={<ExpandMoreIcon />}>
+            <Typography variant="subtitle1">
+              {t('sharedRequired')}
+            </Typography>
+          </AccordionSummary>
+          <AccordionDetails className={classes.details}>
+            <SelectField
+              multiple
+              value={users}
+              onChange={(e) => setUsers(e.target.value)}
+              endpoint="/api/users"
+              label={t('settingsUsers')}
+            />
+            <SelectField
+              value={notificator}
+              onChange={(e) => setNotificator(e.target.value)}
+              endpoint="/api/notifications/notificators"
+              keyGetter={(it) => it.type}
+              titleGetter={(it) => t(prefixString('notificator', it.type))}
+              label={t('notificationNotificators')}
+            />
+            <TextField
+              value={message.subject}
+              onChange={(e) => setMessage({ ...message, subject: e.target.value })}
+              label={t('sharedSubject')}
+            />
+            <TextField
+              value={message.body}
+              onChange={(e) => setMessage({ ...message, body: e.target.value })}
+              label={t('commandMessage')}
+            />
+          </AccordionDetails>
+        </Accordion>
+        <div className={classes.buttons}>
+          <Button
+            type="button"
+            color="primary"
+            variant="outlined"
+            onClick={() => navigate(-1)}
+          >
+            {t('sharedCancel')}
+          </Button>
+          <Button
+            type="button"
+            color="primary"
+            variant="contained"
+            onClick={handleSend}
+            disabled={!notificator || !message.subject || !message.body}
+          >
+            {t('commandSend')}
+          </Button>
+        </div>
+      </Container>
+    </PageLayout>
+  );
+};
+
+export default AnnouncementPage;

modern/src/settings/components/SettingsMenu.jsx

@@ -14,6 +14,7 @@ import TodayIcon from '@mui/icons-material/Today';
 import PublishIcon from '@mui/icons-material/Publish';
 import SmartphoneIcon from '@mui/icons-material/Smartphone';
 import HelpIcon from '@mui/icons-material/Help';
+import CampaignIcon from '@mui/icons-material/Campaign';
 import { Link, useLocation } from 'react-router-dom';
 import { useSelector } from 'react-redux';
 import { useTranslation } from '../../common/components/LocalizationProvider';
@@ -139,12 +140,20 @@ const SettingsMenu = () => {
           <Divider />
           <List>
             {admin && (
-              <MenuItem
-                title={t('settingsServer')}
-                link="/settings/server"
-                icon={<StorageIcon />}
-                selected={location.pathname === '/settings/server'}
-              />
+              <>
+                <MenuItem
+                  title={t('serverAnnouncement')}
+                  link="/settings/announcement"
+                  icon={<CampaignIcon />}
+                  selected={location.pathname === '/settings/announcement'}
+                />
+                <MenuItem
+                  title={t('settingsServer')}
+                  link="/settings/server"
+                  icon={<StorageIcon />}
+                  selected={location.pathname === '/settings/server'}
+                />
+              </>
             )}
             <MenuItem
               title={t('settingsUsers')}