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virtweb_frontend/src/hooks/providers/LoadingMessageProvider.tsx

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+import {
+  CircularProgress,
+  Dialog,
+  DialogContent,
+  DialogContentText,
+} from "@mui/material";
+import React, { PropsWithChildren } from "react";
+
+type LoadingMessageContext = {
+  show: (message: string) => void;
+  hide: () => void;
+};
+
+const LoadingMessageContextK =
+  React.createContext<LoadingMessageContext | null>(null);
+
+export function LoadingMessageProvider(
+  p: PropsWithChildren
+): React.ReactElement {
+  const [open, setOpen] = React.useState(false);
+
+  const [message, setMessage] = React.useState("");
+
+  const hook: LoadingMessageContext = {
+    show(message) {
+      setMessage(message);
+      setOpen(true);
+    },
+    hide() {
+      setMessage("");
+      setOpen(false);
+    },
+  };
+
+  return (
+    <>
+      <LoadingMessageContextK.Provider value={hook}>
+        {p.children}
+      </LoadingMessageContextK.Provider>
+
+      <Dialog open={open}>
+        <DialogContent>
+          <DialogContentText>
+            <div
+              style={{
+                display: "flex",
+                alignItems: "center",
+                justifyContent: "center",
+              }}
+            >
+              <CircularProgress style={{ marginRight: "15px" }} />
+
+              {message}
+            </div>
+          </DialogContentText>
+        </DialogContent>
+      </Dialog>
+    </>
+  );
+}
+
+export function useLoadingMessage(): LoadingMessageContext {
+  return React.useContext(LoadingMessageContextK)!;
+}