Add an accommodations reservations module (#188)

Add a new module to enable accommodations reservation

![](https://gitea.communiquons.org/attachments/de1f5b12-0a93-40f8-b29d-97665daa6fd5)

Reviewed-on: #188

geneit_app/src/hooks/context_providers/accommodations/InstallCalendarDialogProvider.tsx

@@ -0,0 +1,44 @@
+import React, { PropsWithChildren } from "react";
+import { AccommodationCalendarURL } from "../../../api/accommodations/AccommodationsCalendarURLApi";
+import { InstallCalendarDialog } from "../../../dialogs/accommodations/InstallCalendarDialog";
+
+type DialogContext = (cal: AccommodationCalendarURL) => Promise<void>;
+
+const DialogContextK = React.createContext<DialogContext | null>(null);
+
+export function InstallCalendarDialogProvider(
+  p: PropsWithChildren
+): React.ReactElement {
+  const [cal, setCal] = React.useState<AccommodationCalendarURL | undefined>();
+
+  const cb = React.useRef<null | (() => void)>(null);
+
+  const handleClose = () => {
+    setCal(undefined);
+
+    if (cb.current !== null) cb.current();
+    cb.current = null;
+  };
+
+  const hook: DialogContext = (c) => {
+    setCal(c);
+
+    return new Promise((res) => {
+      cb.current = res;
+    });
+  };
+
+  return (
+    <>
+      <DialogContextK.Provider value={hook}>
+        {p.children}
+      </DialogContextK.Provider>
+
+      {cal && <InstallCalendarDialog cal={cal} onClose={handleClose} />}
+    </>
+  );
+}
+
+export function useInstallCalendarDialog(): DialogContext {
+  return React.useContext(DialogContextK)!;
+}