Feature: Add Info banner if user is not on latest version

web/src/components/InfoBanner.tsx

@@ -4,43 +4,29 @@ import React, { useEffect, useState } from 'react'
 import { Message } from '../data-providers/MessageBannerProvider'
 
 interface Props {
-  errorMsg?: string
-  successMsg?: string
+  message: Message
 }
 
-export default function Banner(props: Props): JSX.Element {
-  const messageFromProps = (props: Props): Message => {
-    if (props.errorMsg != null && props.errorMsg.trim() !== '') {
-      return { text: props.errorMsg, type: 'error' }
-    }
-    if (props.successMsg != null && props.successMsg.trim() !== '') {
-      return { text: props.successMsg, type: 'success' }
-    }
-
-    return { text: undefined, type: 'success' }
-  }
-
-  const [msg, setMsg] = useState<Message>(messageFromProps(props))
+export default function Banner (props: Props): JSX.Element {
   const [show, setShow] = useState<boolean>(false)
 
   useEffect(() => {
     setShow(true)
-    setMsg(messageFromProps(props))
-  }, [props])
+  }, [props.message])
 
   return (
     <Snackbar
       key={uniqueId()}
-      open={show && msg.text != null}
-      autoHideDuration={6000}
+      open={show && props.message.content != null}
+      autoHideDuration={props.message.showMs}
       onClose={() => setShow(false)}
     >
       <Alert
         onClose={() => setShow(false)}
-        severity={msg.type}
+        severity={props.message.type}
         sx={{ width: '100%' }}
       >
-        {msg.text}
+        {props.message.content}
       </Alert>
     </Snackbar>
   )

web/src/data-providers/MessageBannerProvider.tsx

@@ -8,8 +8,9 @@ import React, { useState, useCallback, useContext } from 'react'
 import Banner from '../components/InfoBanner'
 
 export interface Message {
-  text: string | undefined
-  type: 'error' | 'success'
+  content: string | JSX.Element | undefined
+  type: 'success' | 'info' | 'warning' | 'error'
+  showMs: number | null // null = infinite
 }
 
 interface MessageBannerState {
@@ -22,14 +23,13 @@ export const Context = React.createContext<MessageBannerState>({
   }
 })
 
-export function MessageBannerProvider({ children }: any): JSX.Element {
+export function MessageBannerProvider ({ children }: any): JSX.Element {
   // We need to store the last timeout, so we can clear when a new message is shown
-  const [lastTimeout, setLastTimeout] = useState<NodeJS.Timeout | undefined>(
-    undefined
-  )
+  const [lastTimeout, setLastTimeout] = useState<NodeJS.Timeout>()
   const [message, setMessage] = useState<Message>({
-    text: undefined,
-    type: 'success'
+    content: undefined,
+    type: 'success',
+    showMs: 6000
   })
 
   const showMessage = useCallback((message: Message) => {
@@ -39,25 +39,28 @@ export function MessageBannerProvider({ children }: any): JSX.Element {
 
     setMessage(message)
 
+    if (message.showMs === null) {
+      // don't hide message
+      return
+    }
+
     // Hide message after 6 seconds
     const newTimeout = setTimeout(
       () =>
         setMessage({
-          text: undefined,
-          type: 'success'
+          content: undefined,
+          type: 'success',
+          showMs: 6000
         }),
-      6000
+      message.showMs
     )
 
     setLastTimeout(newTimeout)
   }, [])
 
   return (
     <Context.Provider value={{ showMessage }}>
-      <Banner
-        successMsg={message.type === 'success' ? message.text : undefined}
-        errorMsg={message.type === 'error' ? message.text : undefined}
-      />
+      <Banner message={message} />
       {children}
     </Context.Provider>
   )

web/src/data-providers/ProjectDataProvider.tsx

@@ -57,8 +57,9 @@ export function ProjectDataProvider({ children }: any): JSX.Element {
         console.error(e)
 
         showMessage({
-          text: 'Failed to load projects',
-          type: 'error'
+          content: 'Failed to load projects',
+          type: 'error',
+          showMs: 6000
         })
 
         setProjects({

web/src/pages/Claim.tsx

@@ -30,8 +30,9 @@ export default function Claim(): JSX.Element {
     } catch (e) {
       console.error(e)
       showMessage({
-        text: (e as { message: string }).message,
-        type: 'error'
+        content: (e as { message: string }).message,
+        type: 'error',
+        showMs: 6000
       })
     }
   }

web/src/pages/Delete.tsx

@@ -54,7 +54,8 @@ export default function Delete(): JSX.Element {
 
         showMessage({
           type: 'success',
-          text: `Documentation for ${project} (${version}) deleted successfully.`
+          content: `Documentation for ${project} (${version}) deleted successfully.`,
+          showMs: 6000
         })
         setProject('none')
         setVersion('none')
@@ -65,7 +66,8 @@ export default function Delete(): JSX.Element {
 
         showMessage({
           type: 'error',
-          text: (e as { message: string }).message
+          content: (e as { message: string }).message,
+          showMs: 6000
         })
       }
     })()

web/src/pages/Docs.tsx

@@ -14,6 +14,7 @@ import NotFound from './NotFound'
 
 import styles from './../style/pages/Docs.module.css'
 import { uniqueId } from 'lodash'
+import { useMessageBanner } from '../data-providers/MessageBannerProvider'
 
 export default function Docs (): JSX.Element {
   const projectParam = useParams().project ?? ''
@@ -31,6 +32,7 @@ export default function Docs (): JSX.Element {
   const [versions, setVersions] = useState<ProjectDetails[]>([])
   const [loadingFailed, setLoadingFailed] = useState<boolean>(false)
 
+  const { showMessage } = useMessageBanner()
   const location = useLocation()
   const iFrameRef = useRef<HTMLIFrameElement>(null)
 
@@ -186,6 +188,25 @@ export default function Docs (): JSX.Element {
     }
   }, [location])
 
+  useEffect(() => {
+    // check every time the version changes whether the version
+    // is the latest version and if not, show a banner
+    if (versions.length === 0) {
+      return
+    }
+
+    const latestVersion = ProjectRepository.getLatestVersion(versions).name
+    if (version === latestVersion) {
+      return
+    }
+
+    showMessage({
+      content: 'You are viewing an outdated version of the documentation.',
+      type: 'warning',
+      showMs: null
+    })
+  }, [version, versions])
+
   if (loadingFailed) {
     return <NotFound />
   }

web/src/pages/Upload.tsx

@@ -110,7 +110,8 @@ export default function Upload(): JSX.Element {
         setValidation({})
         showMessage({
           type: 'success',
-          text: 'Documentation uploaded successfully'
+          content: 'Documentation uploaded successfully',
+          showMs: 6000
         })
 
         // reload the projects
@@ -121,7 +122,8 @@ export default function Upload(): JSX.Element {
         const message = (e as { message: string }).message
         showMessage({
           type: 'error',
-          text: message
+          content: message,
+          showMs: 6000
         })
       } finally {
         setIsUploading(false)