Add missing file

2020-05-13 17:36:02 +02:00
parent 061ffc60ac
commit ba2b19d4c0
1 changed files with 92 additions and 0 deletions
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2020 Spotify AB
+ *
+ * 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 { useContext, useEffect } from 'react';
+import { AppContext, STORAGE_KEY } from '../../components/Store';
+import { useApi, errorApiRef } from '@backstage/core';
+
+export type SettingsDispatch = {
+  saveSettings: (settings: SettingsState) => void;
+};
+
+export type SettingsState = {
+  token: string;
+  owner: string;
+  repo: string;
+};
+
+// type Effect = {
+//   type: 'rehydrate',
+//   payload: any
+// };
+
+// const effects = [];
+// pushEffect, popEffect
+
+export function useSettings(): [SettingsState, SettingsDispatch] {
+  const [{ settings }, dispatch] = useContext(AppContext);
+
+  // const interpret = eff => {
+  //   return {
+  //     async rehydrate() {},
+
+  //   }[eff.type](eff.payload)
+  // }
+  // useEffect(() => {
+  //   const effectToInterpret = effects[0];
+  //   removeEffect(0);
+  //   interpret(effectToInterpret)
+  // },[effects])
+
+  const errorApi = useApi(errorApiRef);
+
+  const rehydrate = () => {
+    try {
+      const stateFromStorage = JSON.parse(sessionStorage.getItem(STORAGE_KEY)!);
+      if (
+        stateFromStorage &&
+        Object.keys(stateFromStorage).some(
+          (k) => (settings as any)[k] !== stateFromStorage[k],
+        )
+      )
+        dispatch({
+          type: 'setCredentials',
+          payload: stateFromStorage,
+        });
+    } catch (error) {
+      errorApi.post(error);
+    }
+  };
+  useEffect(() => {
+    rehydrate();
+  }, []);
+
+  const persist = (state: SettingsState) => {
+    sessionStorage.setItem(STORAGE_KEY, JSON.stringify(state));
+  };
+
+  return [
+    settings,
+    {
+      saveSettings: (state: SettingsState) => {
+        persist(state);
+        dispatch({
+          type: 'setCredentials',
+          payload: state,
+        });
+      },
+    },
+  ];
+}