add restentpoint for login/logout, restructuring of modules and components, add flow usage

scm-ui/src/users/modules/users.js

@@ -0,0 +1,58 @@
+const FETCH_USERS = 'scm/users/FETCH';
+const FETCH_USERS_SUCCESS= 'scm/users/FETCH_SUCCESS';
+const FETCH_USERS_FAILURE = 'scm/users/FETCH_FAILURE';
+
+function requestUsers() {
+  return {
+    type: FETCH_USERS
+  };
+}
+
+
+function fetchUsers() {
+  return function(dispatch) {
+    dispatch(requestUsers());
+    return null;
+  }
+}
+
+export function shouldFetchUsers(state: any): boolean {
+  const users = state.users;
+  return null;
+}
+
+export function fetchUsersIfNeeded() {
+  return (dispatch, getState) => {
+    if (shouldFetchUsers(getState())) {
+      dispatch(fetchUsers());
+    }
+  }
+}
+
+export default function reducer(state = {}, action = {}) {
+  switch (action.type) {
+    case FETCH_USERS:
+      return {
+        ...state,
+        login: true,
+        error: null
+      };
+    case FETCH_USERS_SUCCESS:
+      return {
+        ...state,
+        login: false,
+        timestamp: action.timestamp,
+        error: null,
+        users: action.payload
+      };
+    case FETCH_USERS_FAILURE:
+      return {
+        ...state,
+        login: false,
+        error: action.payload
+      };
+
+    default:
+      return state
+  }
+}