Revert "Revert "Support for getting SFU config using OIDC""

src/livekit/OpenIDLoader.tsx

@@ -0,0 +1,96 @@
+/*
+Copyright 2023 New Vector Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import {
+  ReactNode,
+  createContext,
+  useContext,
+  useEffect,
+  useState,
+} from "react";
+import { logger } from "matrix-js-sdk/src/logger";
+
+import {
+  OpenIDClientParts,
+  SFUConfig,
+  getSFUConfigWithOpenID,
+} from "./openIDSFU";
+import { ErrorView, LoadingView } from "../FullScreenView";
+
+interface Props {
+  client: OpenIDClientParts;
+  livekitServiceURL: string;
+  roomName: string;
+  children: ReactNode;
+}
+
+const SFUConfigContext = createContext<SFUConfig>(undefined);
+
+export const useSFUConfig = () => useContext(SFUConfigContext);
+
+export function OpenIDLoader({
+  client,
+  livekitServiceURL,
+  roomName,
+  children,
+}: Props) {
+  const [state, setState] = useState<
+    SFUConfigLoading | SFUConfigLoaded | SFUConfigFailed
+  >({ kind: "loading" });
+
+  useEffect(() => {
+    (async () => {
+      try {
+        const result = await getSFUConfigWithOpenID(
+          client,
+          livekitServiceURL,
+          roomName
+        );
+        setState({ kind: "loaded", sfuConfig: result });
+      } catch (e) {
+        logger.error("Failed to fetch SFU config: ", e);
+        setState({ kind: "failed", error: e });
+      }
+    })();
+  }, [client, livekitServiceURL, roomName]);
+
+  switch (state.kind) {
+    case "loading":
+      return <LoadingView />;
+    case "failed":
+      return <ErrorView error={state.error} />;
+    case "loaded":
+      return (
+        <SFUConfigContext.Provider value={state.sfuConfig}>
+          {children}
+        </SFUConfigContext.Provider>
+      );
+  }
+}
+
+type SFUConfigLoading = {
+  kind: "loading";
+};
+
+type SFUConfigLoaded = {
+  kind: "loaded";
+  sfuConfig: SFUConfig;
+};
+
+type SFUConfigFailed = {
+  kind: "failed";
+  error: Error;
+};