Can stop sync thread from UI

matrixgw_frontend/src/routes/MatrixLinkRoute.tsx

@@ -3,15 +3,21 @@ import CloseIcon from "@mui/icons-material/Close";
 import KeyIcon from "@mui/icons-material/Key";
 import LinkIcon from "@mui/icons-material/Link";
 import LinkOffIcon from "@mui/icons-material/LinkOff";
+import PlayArrowIcon from "@mui/icons-material/PlayArrow";
+import PowerSettingsNewIcon from "@mui/icons-material/PowerSettingsNew";
+import StopIcon from "@mui/icons-material/Stop";
 import {
   Button,
   Card,
   CardActions,
   CardContent,
+  CircularProgress,
+  Grid,
   Typography,
 } from "@mui/material";
 import React from "react";
 import { MatrixLinkApi } from "../api/MatrixLinkApi";
+import { MatrixSyncApi } from "../api/MatrixSyncApi";
 import { SetRecoveryKeyDialog } from "../dialogs/SetRecoveryKeyDialog";
 import { useAlert } from "../hooks/contexts_provider/AlertDialogProvider";
 import { useConfirm } from "../hooks/contexts_provider/ConfirmDialogProvider";
@@ -27,10 +33,17 @@ export function MatrixLinkRoute(): React.ReactElement {
       {user.info.matrix_user_id === null ? (
         <ConnectCard />
       ) : (
-        <>
-          <ConnectedCard />
-          <EncryptionKeyStatus />
-        </>
+        <Grid container spacing={2}>
+          <Grid size={{ sm: 12, md: 6 }}>
+            <ConnectedCard />
+          </Grid>
+          <Grid size={{ sm: 12, md: 6 }}>
+            <EncryptionKeyStatus />
+          </Grid>
+          <Grid size={{ sm: 12, md: 6 }}>
+            <SyncThreadStatus />
+          </Grid>
+        </Grid>
       )}
     </MatrixGWRouteContainer>
   );
@@ -202,3 +215,115 @@ function EncryptionKeyStatus(): React.ReactElement {
     </>
   );
 }
+
+function SyncThreadStatus(): React.ReactElement {
+  const alert = useAlert();
+  const snackbar = useSnackbar();
+
+  const [started, setStarted] = React.useState<undefined | boolean>();
+
+  const loadStatus = async () => {
+    try {
+      setStarted(await MatrixSyncApi.Status());
+    } catch (e) {
+      console.error(`Failed to refresh sync thread status! ${e}`);
+      snackbar(`Failed to refresh sync thread status! ${e}`);
+    }
+  };
+
+  const handleStartThread = async () => {
+    try {
+      setStarted(undefined);
+      await MatrixSyncApi.Start();
+      snackbar("Sync thread started");
+    } catch (e) {
+      console.error(`Failed to start sync thread! ${e}`);
+      alert(`Failed to start sync thread! ${e}`);
+    }
+  };
+
+  const handleStopThread = async () => {
+    try {
+      setStarted(undefined);
+      await MatrixSyncApi.Stop();
+      snackbar("Sync thread stopped");
+    } catch (e) {
+      console.error(`Failed to stop sync thread! ${e}`);
+      alert(`Failed to stop sync thread! ${e}`);
+    }
+  };
+
+  React.useEffect(() => {
+    const interval = setInterval(loadStatus, 1000);
+
+    () => clearInterval(interval);
+  }, []);
+
+  return (
+    <>
+      <Card>
+        <CardContent>
+          <Typography variant="h5" component="div" gutterBottom>
+            Sync thread status
+          </Typography>
+          <Typography variant="body1" gutterBottom>
+            <p>
+              A thread is spawned on the server to watch for events on the
+              Matrix server. You can restart this thread from here in case of
+              issue.
+            </p>
+
+            <p>
+              Current thread status:{" "}
+              {started === undefined ? (
+                <>
+                  <CircularProgress
+                    size={"1rem"}
+                    style={{ verticalAlign: "middle" }}
+                  />
+                </>
+              ) : started === true ? (
+                <>
+                  <CheckIcon
+                    style={{ display: "inline", verticalAlign: "middle" }}
+                  />{" "}
+                  Started
+                </>
+              ) : (
+                <>
+                  <PowerSettingsNewIcon
+                    style={{ display: "inline", verticalAlign: "middle" }}
+                  />
+                  Stopped
+                </>
+              )}
+            </p>
+          </Typography>
+        </CardContent>
+        <CardActions>
+          {started === false && (
+            <Button
+              size="small"
+              variant="outlined"
+              startIcon={<PlayArrowIcon />}
+              onClick={handleStartThread}
+            >
+              Start thread
+            </Button>
+          )}
+
+          {started === true && (
+            <Button
+              size="small"
+              variant="outlined"
+              startIcon={<StopIcon />}
+              onClick={handleStopThread}
+            >
+              Stop thread
+            </Button>
+          )}
+        </CardActions>
+      </Card>
+    </>
+  );
+}