Client: lint config

mpwo_client/src/App.test.js

@@ -1,8 +0,0 @@
-import React from 'react';
-import ReactDOM from 'react-dom';
-import App from './App';
-
-it('renders without crashing', () => {
-  const div = document.createElement('div');
-  ReactDOM.render(<App />, div);
-});

mpwo_client/src/client.jsx

@@ -0,0 +1,8 @@
+import React from 'react'
+import ReactDOM from 'react-dom'
+
+import App from './components/App'
+import registerServiceWorker from './registerServiceWorker'
+
+ReactDOM.render(<App />, document.getElementById('root'))
+registerServiceWorker()

mpwo_client/src/components/App.jsx

@@ -1,8 +1,14 @@
-import React, { Component } from 'react';
-import logo from './logo.svg';
-import './App.css';
+import React from 'react'
+
+import logo from '../logo.svg'
+import './App.css'
+
+class App extends React.Component {
+  constructor(props) {
+    super(props)
+    this.props = props
+  }
 
-class App extends Component {
   render() {
     return (
       <div className="App">
@@ -14,8 +20,8 @@ class App extends Component {
           To get started, edit <code>src/App.js</code> and save to reload.
         </p>
       </div>
-    );
+    )
   }
 }
 
-export default App;
+export default App

mpwo_client/src/components/App.test.jsx

@@ -0,0 +1,9 @@
+import React from 'react'
+import ReactDOM from 'react-dom'
+
+import App from './App'
+
+it('renders without crashing', () => {
+  const div = document.createElement('div')
+  ReactDOM.render(<App />, div)
+})

mpwo_client/src/index.css

@@ -1,5 +0,0 @@
-body {
-  margin: 0;
-  padding: 0;
-  font-family: sans-serif;
-}

mpwo_client/src/index.js

@@ -1,8 +1 @@
-import React from 'react';
-import ReactDOM from 'react-dom';
-import './index.css';
-import App from './App';
-import registerServiceWorker from './registerServiceWorker';
-
-ReactDOM.render(<App />, document.getElementById('root'));
-registerServiceWorker();
+require('./client.jsx')

mpwo_client/src/registerServiceWorker.js

@@ -16,30 +16,32 @@ const isLocalhost = Boolean(
     window.location.hostname.match(
       /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
     )
-);
+)
 
 export default function register() {
   if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
     // The URL constructor is available in all browsers that support SW.
-    const publicUrl = new URL(process.env.PUBLIC_URL, window.location);
+    const publicUrl = new URL(process.env.PUBLIC_URL, window.location)
     if (publicUrl.origin !== window.location.origin) {
       // Our service worker won't work if PUBLIC_URL is on a different origin
       // from what our page is served on. This might happen if a CDN is used to
-      // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374
-      return;
+      // serve assets;
+      // see https://github.com/facebookincubator/create-react-app/issues/2374
+      return
     }
 
     window.addEventListener('load', () => {
-      const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
+      const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`
 
       if (isLocalhost) {
-        // This is running on localhost. Lets check if a service worker still exists or not.
-        checkValidServiceWorker(swUrl);
+        // This is running on localhost.
+        // Lets check if a service worker still exists or not.
+        checkValidServiceWorker(swUrl)
       } else {
         // Is not local host. Just register service worker
-        registerValidSW(swUrl);
+        registerValidSW(swUrl)
       }
-    });
+    })
   }
 }
 
@@ -48,7 +50,7 @@ function registerValidSW(swUrl) {
     .register(swUrl)
     .then(registration => {
       registration.onupdatefound = () => {
-        const installingWorker = registration.installing;
+        const installingWorker = registration.installing
         installingWorker.onstatechange = () => {
           if (installingWorker.state === 'installed') {
             if (navigator.serviceWorker.controller) {
@@ -56,20 +58,22 @@ function registerValidSW(swUrl) {
               // the fresh content will have been added to the cache.
               // It's the perfect time to display a "New content is
               // available; please refresh." message in your web app.
-              console.log('New content is available; please refresh.');
+// eslint-disable-next-line no-console
+              console.log('New content is available; please refresh.')
             } else {
               // At this point, everything has been precached.
               // It's the perfect time to display a
               // "Content is cached for offline use." message.
-              console.log('Content is cached for offline use.');
+// eslint-disable-next-line no-console
+              console.log('Content is cached for offline use.')
             }
           }
-        };
-      };
+        }
+      }
     })
     .catch(error => {
-      console.error('Error during service worker registration:', error);
-    });
+      console.error('Error during service worker registration:', error)
+    })
 }
 
 function checkValidServiceWorker(swUrl) {
@@ -84,25 +88,26 @@ function checkValidServiceWorker(swUrl) {
         // No service worker found. Probably a different app. Reload the page.
         navigator.serviceWorker.ready.then(registration => {
           registration.unregister().then(() => {
-            window.location.reload();
-          });
-        });
+            window.location.reload()
+          })
+        })
       } else {
         // Service worker found. Proceed as normal.
-        registerValidSW(swUrl);
+        registerValidSW(swUrl)
       }
     })
     .catch(() => {
+// eslint-disable-next-line no-console
       console.log(
         'No internet connection found. App is running in offline mode.'
-      );
-    });
+      )
+    })
 }
 
 export function unregister() {
   if ('serviceWorker' in navigator) {
     navigator.serviceWorker.ready.then(registration => {
-      registration.unregister();
-    });
+      registration.unregister()
+    })
   }
 }