feat: standardize stream completion error handling

Author: HRemonen

src/client/components/Chat/error.ts

@@ -1,6 +1,9 @@
 import { t } from 'i18next'
 import { enqueueSnackbar } from 'notistack'
 
+/**
+ * Handle error messages related to completion stream creation
+ */
 export const handleCompletionStreamError = (err: any, file: string) => {
   if (err?.name === 'AbortError' || !err) return
 
@@ -10,8 +13,8 @@ export const handleCompletionStreamError = (err: any, file: string) => {
     enqueueSnackbar(t('error:tooLargeFile'), { variant: 'error' })
   } else if (error === 'Error parsing file' && file) {
     enqueueSnackbar(t('error:fileParsingError'), { variant: 'error' })
-  } else if (!error && typeof err === 'string') {
-    enqueueSnackbar(err, { variant: 'error' })
+  } else if (error === 'Creating a stream took too long') {
+    enqueueSnackbar(t('error:streamCreationTimeout'), { variant: 'warning' })
   } else {
     enqueueSnackbar(t('error:unexpected'), { variant: 'error' })
   }

src/client/components/Chat/index.tsx

@@ -258,7 +258,7 @@ const Chat = () => {
   ) => {
     if (!abortController || abortController.signal.aborted) return
 
-    abortController?.abort('Creating a stream took too long')
+    abortController?.abort(new Error('Creating a stream took too long'))
     const newAbortController = new AbortController()
     setStreamController(newAbortController)
 

src/client/locales/en.json

@@ -90,7 +90,8 @@
     "noAccessInfo": "You do not currently have access to CurreChat",
     "tooLargeFile": "The file is too large",
     "fileParsingError": "Parsing the file failed",
-    "invalidFileType": "Invalid file type"
+    "invalidFileType": "Invalid file type",
+    "streamCreationTimeout": "Creating the stream timed out, retrying"
   },
   "chats": {
     "header": "Current course chats",

src/client/locales/fi.json

@@ -98,7 +98,8 @@
     "noAccessInfo": "Sinulla ei tällä hetkellä ole käyttöoikeuksia CurreChattiin",
     "tooLargeFile": "Tiedosto on liian suuri",
     "fileParsingError": "Tiedoston lukeminen epäonnistui",
-    "invalidFileType": "Tiedostotyyppiä ei tueta"
+    "invalidFileType": "Tiedostotyyppiä ei tueta",
+    "streamCreationTimeout": "Vastauksen luonti kesti liian kauan, yritetään uudelleen"
   },
   "admin": {
     "showing": "Näytetään",