1 files changed, 167 insertions, 0 deletions
diff --git a/packages/anastasis-webui/src/pages/home/AddingProviderScreen/state.ts b/packages/anastasis-webui/src/pages/home/AddingProviderScreen/state.ts
new file mode 100644
index 000000000..30e4d750d
--- /dev/null
+++ b/packages/anastasis-webui/src/pages/home/AddingProviderScreen/state.ts
@@ -0,0 +1,167 @@
+/*
+ This file is part of GNU Anastasis
+ (C) 2021-2022 Anastasis SARL
+
+ GNU Anastasis is free software; you can redistribute it and/or modify it under the
+ terms of the GNU Affero General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Anastasis is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License along with
+ GNU Anastasis; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+import { useEffect, useRef, useState } from "preact/hooks";
+import { Notification } from "../../../components/Notifications.js";
+import { useAnastasisContext } from "../../../context/anastasis.js";
+import { authMethods, KnownAuthMethods } from "../authMethod/index.jsx";
+import { AuthProvByStatusMap, State, testProvider } from "./index.js";
+
+interface Props {
+  providerType?: KnownAuthMethods;
+  onCancel: () => Promise<void>;
+  notifications?: Notification[];
+}
+
+export default function useComponentState({
+  providerType,
+  onCancel,
+  notifications = [],
+}: Props): State {
+  const reducer = useAnastasisContext();
+
+  const [providerURL, setProviderURL] = useState("");
+
+  const [error, setError] = useState<string | undefined>();
+  const [testing, setTesting] = useState(false);
+
+  const providerLabel = providerType
+    ? authMethods[providerType].label
+    : undefined;
+
+  const allAuthProviders =
+    !reducer ||
+    !reducer.currentReducerState ||
+    reducer.currentReducerState.reducer_type === "error" ||
+    !reducer.currentReducerState.authentication_providers
+      ? {}
+      : reducer.currentReducerState.authentication_providers;
+
+  const authProvidersByStatus = Object.keys(allAuthProviders).reduce(
+    (prev, url) => {
+      const p = allAuthProviders[url];
+      if (
+        providerLabel &&
+        p.status === "ok" &&
+        p.methods.findIndex((m) => m.type === providerType) !== -1
+      ) {
+        return prev;
+      }
+      prev[p.status].push({ ...p, url });
+      return prev;
+    },
+    {
+      "not-contacted": [],
+      disabled: [],
+      error: [],
+      ok: [],
+    } as AuthProvByStatusMap,
+  );
+  const authProviders = authProvidersByStatus["ok"].map((p) => p.url);
+
+  //FIXME: move this timeout logic into a hook
+  const timeout = useRef<ReturnType<typeof setTimeout> | undefined>(undefined);
+  useEffect(() => {
+    if (timeout.current) clearTimeout(timeout.current);
+    timeout.current = setTimeout(async () => {
+      let url = providerURL;
+      if (!url || authProviders.includes(url)) return;
+      if (url && !url.match(/^(https?:)\/\/.+\/(?:config)?$/iu))
+        return setError(
+          "Malformed URL: Must be an HTTP(S) URL ending with a /",
+        );
+      if (url.endsWith("/config")) url = url.substring(0, url.length - 6);
+      try {
+        setTesting(true);
+        await testProvider(url, providerType);
+        setError("");
+      } catch (e) {
+        if (e instanceof Error) setError(e.message);
+        else
+          throw new Error(
+            `Unexpected Error Type: ${typeof e} - Cannot handle. Error: ${e}`,
+          );
+      }
+      setTesting(false);
+    }, 200);
+  }, [providerURL, reducer]);
+
+  if (!reducer) {
+    return {
+      status: "no-reducer",
+    };
+  }
+
+  if (
+    !reducer.currentReducerState ||
+    !("authentication_providers" in reducer.currentReducerState)
+  ) {
+    return {
+      status: "invalid-state",
+    };
+  }
+
+  const addProvider = async (provider_url: string): Promise<void> => {
+    await reducer.transition("add_provider", { provider_url });
+    onCancel();
+  };
+  const deleteProvider = async (provider_url: string): Promise<void> => {
+    reducer.transition("delete_provider", { provider_url });
+  };
+
+  let errors = !providerURL ? "Add provider URL" : undefined;
+  let url: string | undefined;
+  // We'll validate it in testProvider & via a regex above - there's no need in this :)
+  // try {
+  //   url = new URL("", providerURL).href;
+  // } catch {
+  //   errors = "Check the URL";
+  // }
+  const _url = url;
+
+  if (!!error && !errors) {
+    errors = error;
+  }
+  if (!errors && authProviders.includes(url!)) {
+    errors = "That provider is already known";
+  }
+
+  const commonState = {
+    addProvider: !_url ? undefined : async () => addProvider(_url),
+    deleteProvider: async (url: string) => deleteProvider(url),
+    allAuthProviders,
+    authProvidersByStatus,
+    onCancel,
+    providerURL,
+    testing,
+    setProviderURL: async (s: string) => setProviderURL(s),
+    errors,
+    error,
+    notifications,
+  };
+
+  if (!providerLabel) {
+    return {
+      status: "without-type",
+      ...commonState,
+    };
+  } else {
+    return {
+      status: "with-type",
+      providerLabel,
+      ...commonState,
+    };
+  }
+}