Change the generation to be done using Redux (instead of this.window...)

app/javascript/src/components/AlertsContainer/components/Alert.jsx

@@ -74,13 +74,8 @@ class Alert extends Component {
 Alert.propTypes = {
   message: PropTypes.string.isRequired,
   type: PropTypes.string.isRequired,
-  timeout: PropTypes.number,
-  onClose: PropTypes.func
-};
-
-Alert.defaultProps = {
-  timeout: 5000,
-  onClose: undefined
+  timeout: PropTypes.number.isRequired,
+  onClose: PropTypes.func.isRequired
 };
 
 export default Alert;

app/javascript/src/components/AlertsContainer/index.jsx

@@ -1,8 +1,10 @@
 import React, { Component } from "react";
+import { connect } from "react-redux";
 import styled from "styled-components";
-import update from "immutability-helper";
 import TransitionGroup from 'react-transition-group/TransitionGroup';
 import CSSTransition from 'react-transition-group/CSSTransition';
+import PropTypes from "prop-types";
+import { clearAlert } from "../actions/AlertsActions";
 import Alert from "./components/Alert";
 
 const Wrapper = styled.div`
@@ -15,36 +17,7 @@ class AlertsContainer extends Component {
   constructor(props) {
     super(props);
 
-    this.state = {
-      alerts: []
-    };
-
-    this.add = this.add.bind(this);
-    this.clearAll = this.clearAll.bind(this);
-    this.clear = this.clear.bind(this);
     this.renderAlert = this.renderAlert.bind(this);
-
-    // Bind self to global namespace
-    window.alerts = this;
-  }
-
-  add(message, type, timeout) {
-    this.setState(
-      update(
-        this.state,
-        { alerts: { $push: [{ message, type, timeout }] } }
-      )
-    );
-  }
-
-  clearAll() {
-    this.setState({ alerts: [] });
-  }
-
-  clear(alert) {
-    const index = this.state.alerts.indexOf(alert);
-    const alerts = update(this.state.alerts, { $splice: [[index, 1]] });
-    this.setState({ alerts });
   }
 
   renderAlert(alert) {
@@ -52,7 +25,7 @@ class AlertsContainer extends Component {
       <Alert message={alert.message}
              type={alert.type}
              timeout={alert.timeout}
-             onClose={() => this.clear(alert)}
+             onClose={() => this.props.onAlertClose(alert.id)}
       />
     );
   }
@@ -61,11 +34,11 @@ class AlertsContainer extends Component {
     return (
       <Wrapper>
         <TransitionGroup>
-          {this.state.alerts.map((alert, index) =>
-            <CSSTransition key={`alert-${index}`}
+          {this.props.alerts.map((alert) =>
+            <CSSTransition key={alert.id}
                            timeout={500}
                            classNames="alert-animated">
-              {this.renderAlert(alert, index)}
+              {this.renderAlert(alert)}
             </CSSTransition>
           )}
         </TransitionGroup>
@@ -74,4 +47,25 @@ class AlertsContainer extends Component {
   }
 }
 
-export default AlertsContainer;
+AlertsContainer.propTypes = {
+  alerts: PropTypes.arrayOf(
+    PropTypes.shape({
+      message: PropTypes.string.isRequired,
+      type: PropTypes.string.isRequired,
+      id: PropTypes.string.isRequired,
+      timeout: PropTypes.number,
+      onClose: PropTypes.func
+    }).isRequired
+  ).isRequired,
+  onAlertClose: PropTypes.func.isRequired
+}
+
+const mapStateToProps = ({ alerts }) => ({ alerts });
+
+const mapDispatchToProps = dispatch => ({
+  onAlertClose(id) {
+    dispatch(clearAlert(id));
+  }
+});
+
+export default connect(mapStateToProps, mapDispatchToProps)(AlertsContainer);

app/javascript/src/components/actions/AlertsActions.js

@@ -0,0 +1,29 @@
+import shortid from "shortid";
+import {
+  ADD_ALERT,
+  CLEAR_ALERT,
+  CLEAR_ALL_ALERTS
+} from "../../config/action_types";
+
+export function addAlert(message,
+                         type,
+                         id = shortid.generate(),
+                         timeout = 5000) {
+  return {
+    payload: {
+      message,
+      type,
+      id,
+      timeout
+    },
+    type: ADD_ALERT
+  };
+}
+
+export function clearAlert(id) {
+  return { payload: id, type: CLEAR_ALERT }
+}
+
+export function clearAllAlerts() {
+  return { type: CLEAR_ALL_ALERTS };
+}

app/javascript/src/components/reducers/AlertsReducers.js

@@ -0,0 +1,31 @@
+import {
+  ADD_ALERT,
+  CLEAR_ALERT,
+  CLEAR_ALL_ALERTS
+} from "../../config/action_types";
+
+export const alerts = (
+  state = [],
+  action
+) => {
+  switch(action.type) {
+    case ADD_ALERT:
+      return [
+        ...state,
+        {
+          message: action.payload.message,
+          type: action.payload.type,
+          id: action.payload.id,
+          timeout: action.payload.timeout
+        }
+      ];
+    case CLEAR_ALERT:
+      return state.filter((alert) => (
+        alert.id !== action.payload
+      ));
+    case CLEAR_ALL_ALERTS:
+      return [];
+    default:
+      return state;
+  }
+};

app/javascript/src/config/action_types.js

@@ -35,3 +35,8 @@ export const UPDATE_TEAM_DESCRIPTION_MODAL = "UPDATE_TEAM_DESCRIPTION_MODAL";
 // spinner
 export const SPINNER_ON = "SPINNER_ON";
 export const SPINNER_OFF = "SPINNER_OFF";
+
+// alerts
+export const ADD_ALERT = "ADD_ALERT";
+export const CLEAR_ALERT = "CLEAR_ALERT";
+export const CLEAR_ALL_ALERTS = "CLEAR_ALL_ALERTS";

app/javascript/src/config/reducers.js

@@ -6,11 +6,13 @@ import {
 } from "../components/reducers/TeamReducers";
 import { globalActivities } from "../components/reducers/ActivitiesReducers";
 import { currentUser } from "../components/reducers/UsersReducer";
+import { alerts } from "../components/reducers/AlertsReducers";
 
 export default combineReducers({
   current_team: setCurrentTeam,
   all_teams: getListOfTeams,
   global_activities: globalActivities,
   current_user: currentUser,
-  showLeaveTeamModal
+  showLeaveTeamModal,
+  alerts
 });

package.json

@@ -83,6 +83,7 @@
     "redux-thunk": "^2.2.0",
     "resolve-url-loader": "^2.1.0",
     "sass-loader": "^6.0.6",
+    "shortid": "^2.2.8",
     "style-loader": "^0.18.2",
     "styled-components": "^2.1.1",
     "webpack": "^3.2.0",

yarn.lock

@@ -5313,6 +5313,10 @@ shelljs@^0.7.5:
     interpret "^1.0.0"
     rechoir "^0.6.2"
 
+shortid@^2.2.8:
+  version "2.2.8"
+  resolved "https://registry.yarnpkg.com/shortid/-/shortid-2.2.8.tgz#033b117d6a2e975804f6f0969dbe7d3d0b355131"
+
 signal-exit@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"