🅰️ feat: Azure OpenAI Assistants API Support (#1992)

* chore: rename dir from `assistant` to plural

* feat: `assistants` field for azure config, spread options in AppService

* refactor: rename constructAzureURL param for azure as `azureOptions`

* chore: bump openai and bun

* chore(loadDefaultModels): change naming of assistant -> assistants

* feat: load azure settings with currect baseURL for assistants' initializeClient

* refactor: add `assistants` flags to groups and model configs, add mapGroupToAzureConfig

* feat(loadConfigEndpoints): initialize assistants endpoint if azure flag `assistants` is enabled

* feat(AppService): determine assistant models on startup, throw Error if none

* refactor(useDeleteAssistantMutation): send model along with assistant id for delete mutations

* feat: support listing and deleting assistants with azure

* feat: add model query to assistant avatar upload

* feat: add azure support for retrieveRun method

* refactor: update OpenAIClient initialization

* chore: update README

* fix(ci): tests passing

* refactor(uploadOpenAIFile): improve logging and use more efficient REST API method

* refactor(useFileHandling): add model to metadata to target Azure region compatible with current model

* chore(files): add azure naming pattern for valid file id recognition

* fix(assistants): initialize openai with first available assistant model if none provided

* refactor(uploadOpenAIFile): add content type for azure, initialize formdata before azure options

* refactor(sleep): move sleep function out of Runs and into `~/server/utils`

* fix(azureOpenAI/assistants): make sure to only overwrite models with assistant models if `assistants` flag is enabled

* refactor(uploadOpenAIFile): revert to old method

* chore(uploadOpenAIFile): use enum for file purpose

* docs: azureOpenAI update guide with more info, examples

* feat: enable/disable assistant capabilities and specify retrieval models

* refactor: optional chain conditional statement in loadConfigModels.js

* docs: add assistants examples

* chore: update librechat.example.yaml

* docs(azure): update note of file upload behavior in Azure OpenAI Assistants

* chore: update docs and add descriptive message about assistant errors

* fix: prevent message submission with invalid assistant or if files loading

* style: update Landing icon & text when assistant is not selected

* chore: bump librechat-data-provider to 0.4.8

* fix(assistants/azure): assign req.body.model for proper azure init to abort runs

client/src/components/Chat/Input/ChatForm.tsx

@@ -1,16 +1,17 @@
 import { useRecoilState } from 'recoil';
-import { memo, useCallback, useRef } from 'react';
-import TextareaAutosize from 'react-textarea-autosize';
 import { useForm } from 'react-hook-form';
+import TextareaAutosize from 'react-textarea-autosize';
+import { memo, useCallback, useRef, useMemo } from 'react';
 import {
   supportsFiles,
   mergeFileConfig,
   fileConfig as defaultFileConfig,
+  EModelEndpoint,
 } from 'librechat-data-provider';
+import { useChatContext, useAssistantsMapContext } from '~/Providers';
 import { useRequiresKey, useTextarea } from '~/hooks';
 import { useGetFileConfig } from '~/data-provider';
 import { cn, removeFocusOutlines } from '~/utils';
-import { useChatContext } from '~/Providers';
 import AttachFile from './Files/AttachFile';
 import StopButton from './StopButton';
 import SendButton from './SendButton';
@@ -37,6 +38,7 @@ const ChatForm = ({ index = 0 }) => {
     setFilesLoading,
   } = useChatContext();
 
+  const assistantMap = useAssistantsMapContext();
   const methods = useForm<{ text: string }>({
     defaultValues: { text: '' },
   });
@@ -61,6 +63,16 @@ const ChatForm = ({ index = 0 }) => {
   });
 
   const endpointFileConfig = fileConfig.endpoints[endpoint ?? ''];
+  const invalidAssistant = useMemo(
+    () =>
+      conversation?.endpoint === EModelEndpoint.assistants &&
+      (!conversation?.assistant_id || !assistantMap?.[conversation?.assistant_id ?? '']),
+    [conversation?.assistant_id, conversation?.endpoint, assistantMap],
+  );
+  const disableInputs = useMemo(
+    () => !!(requiresKey || invalidAssistant),
+    [requiresKey, invalidAssistant],
+  );
 
   return (
     <form
@@ -92,7 +104,7 @@ const ChatForm = ({ index = 0 }) => {
                 ref={(e) => {
                   textAreaRef.current = e;
                 }}
-                disabled={!!requiresKey}
+                disabled={disableInputs}
                 onPaste={handlePaste}
                 onKeyUp={handleKeyUp}
                 onKeyDown={handleKeyDown}
@@ -116,7 +128,7 @@ const ChatForm = ({ index = 0 }) => {
             <AttachFile
               endpoint={_endpoint ?? ''}
               endpointType={endpointType}
-              disabled={requiresKey}
+              disabled={disableInputs}
             />
             {isSubmitting && showStopButton ? (
               <StopButton stop={handleStopGenerating} setShowStopButton={setShowStopButton} />
@@ -125,7 +137,7 @@ const ChatForm = ({ index = 0 }) => {
                 <SendButton
                   ref={submitButtonRef}
                   control={methods.control}
-                  disabled={!!(filesLoading || isSubmitting || requiresKey)}
+                  disabled={!!(filesLoading || isSubmitting || disableInputs)}
                 />
               )
             )}