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virtweb_frontend/src/hooks/providers/AlertDialogProvider.tsx

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+import {
+  Button,
+  Dialog,
+  DialogActions,
+  DialogContent,
+  DialogContentText,
+  DialogTitle,
+} from "@mui/material";
+import React, { PropsWithChildren } from "react";
+
+type AlertContext = (message: string, title?: string) => Promise<void>;
+
+const AlertContextK = React.createContext<AlertContext | null>(null);
+
+export function AlertDialogProvider(p: PropsWithChildren): React.ReactElement {
+  const [open, setOpen] = React.useState(false);
+
+  const [title, setTitle] = React.useState<string | undefined>(undefined);
+  const [message, setMessage] = React.useState("");
+
+  const cb = React.useRef<null | (() => void)>(null);
+
+  const handleClose = () => {
+    setOpen(false);
+
+    if (cb.current !== null) cb.current();
+    cb.current = null;
+  };
+
+  const hook: AlertContext = (message, title) => {
+    setTitle(title);
+    setMessage(message);
+    setOpen(true);
+
+    return new Promise((res) => {
+      cb.current = res;
+    });
+  };
+
+  return (
+    <>
+      <AlertContextK.Provider value={hook}>{p.children}</AlertContextK.Provider>
+
+      <Dialog
+        open={open}
+        onClose={handleClose}
+        aria-labelledby="alert-dialog-title"
+        aria-describedby="alert-dialog-description"
+      >
+        {title && <DialogTitle id="alert-dialog-title">{title}</DialogTitle>}
+        <DialogContent>
+          <DialogContentText id="alert-dialog-description">
+            {message}
+          </DialogContentText>
+        </DialogContent>
+        <DialogActions>
+          <Button onClick={handleClose} autoFocus>
+            Ok
+          </Button>
+        </DialogActions>
+      </Dialog>
+    </>
+  );
+}
+
+export function useAlert(): AlertContext {
+  return React.useContext(AlertContextK)!;
+}

virtweb_frontend/src/hooks/providers/SnackbarProvider.tsx

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+import { Snackbar } from "@mui/material";
+
+import React, { PropsWithChildren } from "react";
+
+type SnackbarContext = (message: string, duration?: number) => void;
+
+const SnackbarContextK = React.createContext<SnackbarContext | null>(null);
+
+export function SnackbarProvider(p: PropsWithChildren): React.ReactElement {
+  const [open, setOpen] = React.useState(false);
+
+  const [message, setMessage] = React.useState("");
+  const [duration, setDuration] = React.useState(0);
+
+  const handleClose = () => {
+    setOpen(false);
+  };
+
+  const hook: SnackbarContext = (message, duration) => {
+    setMessage(message);
+    setDuration(duration ?? 6000);
+    setOpen(true);
+  };
+
+  return (
+    <>
+      <SnackbarContextK.Provider value={hook}>
+        {p.children}
+      </SnackbarContextK.Provider>
+
+      <Snackbar
+        open={open}
+        autoHideDuration={duration}
+        onClose={handleClose}
+        message={message}
+      />
+    </>
+  );
+}
+
+export function useSnackbar(): SnackbarContext {
+  return React.useContext(SnackbarContextK)!;
+}