🎭 feat: Override Custom Endpoint Schema with Specified Params Endpoint (#11788)

* 🔧 refactor: Simplify payload parsing and enhance getSaveOptions logic

- Removed unused bedrockInputSchema from payloadParser, streamlining the function.
- Updated payloadParser to handle optional chaining for model parameters.
- Enhanced getSaveOptions to ensure runOptions defaults to an empty object if parsing fails, improving robustness.
- Adjusted the assignment of maxContextTokens to use the instance variable for consistency.

* 🔧 fix: Update maxContextTokens assignment logic in initializeAgent function

- Enhanced the maxContextTokens assignment to allow for user-defined values, ensuring it defaults to a calculated value only when not provided or invalid. This change improves flexibility in agent initialization.

* 🧪 test: Add unit tests for initializeAgent function

- Introduced comprehensive unit tests for the initializeAgent function, focusing on maxContextTokens behavior.
- Tests cover scenarios for user-defined values, fallback calculations, and edge cases such as zero and negative values, enhancing overall test coverage and reliability of agent initialization logic.

* refactor: default params Endpoint Configuration Handling

- Integrated `getEndpointsConfig` to fetch endpoint configurations, allowing for dynamic handling of `defaultParamsEndpoint`.
- Updated `buildEndpointOption` to pass `defaultParamsEndpoint` to `parseCompactConvo`, ensuring correct parameter handling based on endpoint type.
- Added comprehensive unit tests for `buildDefaultConvo` and `cleanupPreset` to validate behavior with `defaultParamsEndpoint`, covering various scenarios and edge cases.
- Refactored related hooks and utility functions to support the new configuration structure, improving overall flexibility and maintainability.

* refactor: Centralize defaultParamsEndpoint retrieval

- Introduced `getDefaultParamsEndpoint` function to streamline the retrieval of `defaultParamsEndpoint` across various hooks and middleware.
- Updated multiple files to utilize the new function, enhancing code consistency and maintainability.
- Removed redundant logic for fetching `defaultParamsEndpoint`, simplifying the codebase.

client/src/hooks/Chat/useAddedResponse.ts

@@ -1,7 +1,12 @@
 import { useCallback } from 'react';
 import { useRecoilValue } from 'recoil';
 import { useGetModelsQuery } from 'librechat-data-provider/react-query';
-import { getEndpointField, LocalStorageKeys, isAssistantsEndpoint } from 'librechat-data-provider';
+import {
+  getEndpointField,
+  LocalStorageKeys,
+  isAssistantsEndpoint,
+  getDefaultParamsEndpoint,
+} from 'librechat-data-provider';
 import type { TEndpointsConfig, EModelEndpoint, TConversation } from 'librechat-data-provider';
 import type { AssistantListItem, NewConversationParams } from '~/common';
 import useAssistantListMap from '~/hooks/Assistants/useAssistantListMap';
@@ -84,11 +89,13 @@ export default function useAddedResponse() {
       }
 
       const models = modelsConfig?.[defaultEndpoint ?? ''] ?? [];
+      const defaultParamsEndpoint = getDefaultParamsEndpoint(endpointsConfig, defaultEndpoint);
       newConversation = buildDefaultConvo({
         conversation: newConversation,
         lastConversationSetup: preset as TConversation,
         endpoint: defaultEndpoint ?? ('' as EModelEndpoint),
         models,
+        defaultParamsEndpoint,
       });
 
       if (preset?.title != null && preset.title !== '') {

client/src/hooks/Chat/useChatFunctions.ts

@@ -13,6 +13,7 @@ import {
   parseCompactConvo,
   replaceSpecialVars,
   isAssistantsEndpoint,
+  getDefaultParamsEndpoint,
 } from 'librechat-data-provider';
 import type {
   TMessage,
@@ -173,12 +174,14 @@ export default function useChatFunctions({
     const startupConfig = queryClient.getQueryData<TStartupConfig>([QueryKeys.startupConfig]);
     const endpointType = getEndpointField(endpointsConfig, endpoint, 'type');
     const iconURL = conversation?.iconURL;
+    const defaultParamsEndpoint = getDefaultParamsEndpoint(endpointsConfig, endpoint);
 
     /** This becomes part of the `endpointOption` */
     const convo = parseCompactConvo({
       endpoint: endpoint as EndpointSchemaKey,
       endpointType: endpointType as EndpointSchemaKey,
       conversation: conversation ?? {},
+      defaultParamsEndpoint,
     });
 
     const { modelDisplayLabel } = endpointsConfig?.[endpoint ?? ''] ?? {};

client/src/hooks/Conversations/useDefaultConvo.ts

@@ -1,5 +1,5 @@
-import { excludedKeys } from 'librechat-data-provider';
 import { useGetModelsQuery } from 'librechat-data-provider/react-query';
+import { excludedKeys, getDefaultParamsEndpoint } from 'librechat-data-provider';
 import type {
   TEndpointsConfig,
   TModelsConfig,
@@ -47,11 +47,14 @@ const useDefaultConvo = () => {
       }
     }
 
+    const defaultParamsEndpoint = getDefaultParamsEndpoint(endpointsConfig, endpoint);
+
     const defaultConvo = buildDefaultConvo({
       conversation: conversation as TConversation,
       endpoint,
       lastConversationSetup: preset as TConversation,
       models,
+      defaultParamsEndpoint,
     });
 
     if (!cleanOutput) {

client/src/hooks/Conversations/useGenerateConvo.ts

@@ -1,7 +1,12 @@
 import { useRecoilValue } from 'recoil';
 import { useCallback, useRef, useEffect } from 'react';
 import { useGetModelsQuery } from 'librechat-data-provider/react-query';
-import { getEndpointField, LocalStorageKeys, isAssistantsEndpoint } from 'librechat-data-provider';
+import {
+  getEndpointField,
+  LocalStorageKeys,
+  isAssistantsEndpoint,
+  getDefaultParamsEndpoint,
+} from 'librechat-data-provider';
 import type {
   TEndpointsConfig,
   EModelEndpoint,
@@ -117,11 +122,13 @@ const useGenerateConvo = ({
       }
 
       const models = modelsConfig?.[defaultEndpoint ?? ''] ?? [];
+      const defaultParamsEndpoint = getDefaultParamsEndpoint(endpointsConfig, defaultEndpoint);
       conversation = buildDefaultConvo({
         conversation,
         lastConversationSetup: preset as TConversation,
         endpoint: defaultEndpoint ?? ('' as EModelEndpoint),
         models,
+        defaultParamsEndpoint,
       });
 
       if (preset?.title != null && preset.title !== '') {

client/src/hooks/Conversations/useNavigateToConvo.tsx

@@ -2,7 +2,13 @@ import { useCallback } from 'react';
 import { useSetRecoilState } from 'recoil';
 import { useNavigate } from 'react-router-dom';
 import { useQueryClient } from '@tanstack/react-query';
-import { QueryKeys, Constants, dataService, getEndpointField } from 'librechat-data-provider';
+import {
+  QueryKeys,
+  Constants,
+  dataService,
+  getEndpointField,
+  getDefaultParamsEndpoint,
+} from 'librechat-data-provider';
 import type {
   TEndpointsConfig,
   TStartupConfig,
@@ -106,11 +112,13 @@ const useNavigateToConvo = (index = 0) => {
 
       const models = modelsConfig?.[defaultEndpoint ?? ''] ?? [];
 
+      const defaultParamsEndpoint = getDefaultParamsEndpoint(endpointsConfig, defaultEndpoint);
       convo = buildDefaultConvo({
         models,
         conversation,
         endpoint: defaultEndpoint,
         lastConversationSetup: conversation,
+        defaultParamsEndpoint,
       });
     }
     clearAllConversations(true);

client/src/hooks/useNewConvo.ts

@@ -14,6 +14,7 @@ import {
   LocalStorageKeys,
   isEphemeralAgentId,
   isAssistantsEndpoint,
+  getDefaultParamsEndpoint,
 } from 'librechat-data-provider';
 import type {
   TPreset,
@@ -191,11 +192,13 @@ const useNewConvo = (index = 0) => {
           }
 
           const models = modelsConfig?.[defaultEndpoint] ?? [];
+          const defaultParamsEndpoint = getDefaultParamsEndpoint(endpointsConfig, defaultEndpoint);
           conversation = buildDefaultConvo({
             conversation,
             lastConversationSetup: activePreset as TConversation,
             endpoint: defaultEndpoint,
             models,
+            defaultParamsEndpoint,
           });
         }