Start moving webapp to Redux (#6140)

* Start moving webapp to Redux

* Fix localforage import

* Updates per feedback

* Feedback udpates and a few fixes

* Minor updates

* Fix statuses, config not loading properly, getMe sanitizing too much

* Fix preferences

* Fix user autocomplete

* Fix sessions and audits

* Fix error handling for all redux actions

* Use new directory structure for components and containers

* Refresh immediately on logout instead of after timeout

* Add fetch polyfill

2 files changed, 154 insertions, 0 deletions

diff --git a/webapp/store/index.js b/webapp/store/index.js
new file mode 100644
index 000000000..1af7127e8
--- /dev/null
+++ b/webapp/store/index.js
@@ -0,0 +1,112 @@
+// Copyright (c) 2017 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import {batchActions} from 'redux-batched-actions';
+import configureServiceStore from 'mattermost-redux/store';
+import {General, RequestStatus} from 'mattermost-redux/constants';
+import reduxInitialState from 'mattermost-redux/store/initial_state';
+import {createTransform, persistStore} from 'redux-persist';
+import localForage from 'localforage';
+
+import {transformSet} from './utils';
+
+const usersSetTransform = [
+    'profilesInChannel',
+    'profilesNotInChannel',
+    'profilesInTeam',
+    'profilesNotInTeam'
+];
+
+const teamSetTransform = [
+    'membersInTeam'
+];
+
+const setTransforms = [
+    ...usersSetTransform,
+    ...teamSetTransform
+];
+
+export default function configureStore(initialState) {
+    const setTransformer = createTransform(
+        (inboundState, key) => {
+            if (key === 'entities') {
+                const state = {...inboundState};
+                for (const prop in state) {
+                    if (state.hasOwnProperty(prop)) {
+                        state[prop] = transformSet(state[prop], setTransforms);
+                    }
+                }
+
+                return state;
+            }
+
+            return inboundState;
+        },
+        (outboundState, key) => {
+            if (key === 'entities') {
+                const state = {...outboundState};
+                for (const prop in state) {
+                    if (state.hasOwnProperty(prop)) {
+                        state[prop] = transformSet(state[prop], setTransforms, false);
+                    }
+                }
+
+                return state;
+            }
+
+            return outboundState;
+        }
+    );
+
+    const offlineOptions = {
+        persist: (store, options) => {
+            const persistor = persistStore(store, {storage: localForage, ...options}, () => {
+                store.dispatch({
+                    type: General.STORE_REHYDRATION_COMPLETE,
+                    complete: true
+                });
+            });
+
+            let purging = false;
+
+            // check to see if the logout request was successful
+            store.subscribe(() => {
+                const state = store.getState();
+                if (state.requests.users.logout.status === RequestStatus.SUCCESS && !purging) {
+                    purging = true;
+
+                    persistor.purge();
+
+                    store.dispatch(batchActions([
+                        {
+                            type: General.OFFLINE_STORE_RESET,
+                            data: Object.assign({}, reduxInitialState, initialState)
+                        }
+                    ]));
+
+                    localStorage.removeItem('currentUserId');
+                    window.location.href = '/';
+
+                    setTimeout(() => {
+                        purging = false;
+                    }, 500);
+                }
+            });
+
+            return persistor;
+        },
+        persistOptions: {
+            autoRehydrate: {
+                log: false
+            },
+            blacklist: ['errors', 'offline', 'requests', 'entities'],
+            debounce: 500,
+            transforms: [
+                setTransformer
+            ]
+        }
+    };
+
+    return configureServiceStore({}, {}, offlineOptions);
+}
+
diff --git a/webapp/store/utils.js b/webapp/store/utils.js
new file mode 100644
index 000000000..5566f54b8
--- /dev/null
+++ b/webapp/store/utils.js
@@ -0,0 +1,42 @@
+// Copyright (c) 2017 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+function transformFromSet(incoming) {
+    const state = {...incoming};
+
+    for (const key in state) {
+        if (state.hasOwnProperty(key)) {
+            if (state[key] instanceof Set) {
+                state[key] = Array.from([...state[key]]);
+            }
+        }
+    }
+
+    return state;
+}
+
+function transformToSet(incoming) {
+    const state = {...incoming};
+
+    for (const key in state) {
+        if (state.hasOwnProperty(key)) {
+            state[key] = new Set(state[key]);
+        }
+    }
+
+    return state;
+}
+
+export function transformSet(incoming, setTransforms, toStorage = true) {
+    const state = {...incoming};
+
+    const transformer = toStorage ? transformFromSet : transformToSet;
+
+    for (const key in state) {
+        if (state.hasOwnProperty(key) && setTransforms.includes(key)) {
+            state[key] = transformer(state[key]);
+        }
+    }
+
+    return state;
+}