feat(copilot): enterprise configuration

apps/sim/app/api/copilot/chat/route.ts

@@ -8,9 +8,8 @@ import { getSession } from '@/lib/auth'
 import { buildConversationHistory } from '@/lib/copilot/chat-context'
 import { resolveOrCreateChat } from '@/lib/copilot/chat-lifecycle'
 import { buildCopilotRequestPayload } from '@/lib/copilot/chat-payload'
-import { generateChatTitle } from '@/lib/copilot/chat-title'
-import { getCopilotModel } from '@/lib/copilot/config'
-import { COPILOT_MODEL_IDS, COPILOT_REQUEST_MODES } from '@/lib/copilot/models'
+import { SIM_AGENT_API_URL } from '@/lib/copilot/constants'
+import { COPILOT_REQUEST_MODES } from '@/lib/copilot/models'
 import { orchestrateCopilotStream } from '@/lib/copilot/orchestrator'
 import {
   createStreamEventWriter,
@@ -29,6 +28,49 @@ import { resolveWorkflowIdForUser } from '@/lib/workflows/utils'
 
 const logger = createLogger('CopilotChatAPI')
 
+async function requestChatTitleFromCopilot(params: {
+  message: string
+  model: string
+  provider?: string
+}): Promise<string | null> {
+  const { message, model, provider } = params
+  if (!message || !model) return null
+
+  const headers: Record<string, string> = {
+    'Content-Type': 'application/json',
+  }
+  if (env.COPILOT_API_KEY) {
+    headers['x-api-key'] = env.COPILOT_API_KEY
+  }
+
+  try {
+    const response = await fetch(`${SIM_AGENT_API_URL}/api/generate-chat-title`, {
+      method: 'POST',
+      headers,
+      body: JSON.stringify({
+        message,
+        model,
+        ...(provider ? { provider } : {}),
+      }),
+    })
+
+    const payload = await response.json().catch(() => ({}))
+    if (!response.ok) {
+      logger.warn('Failed to generate chat title via copilot backend', {
+        status: response.status,
+        error: payload,
+      })
+      return null
+    }
+
+    const title = typeof payload?.title === 'string' ? payload.title.trim() : ''
+    return title || null
+  } catch (error) {
+    logger.error('Error generating chat title:', error)
+    return null
+  }
+}
+
 const FileAttachmentSchema = z.object({
   id: z.string(),
   key: z.string(),
@@ -43,14 +85,14 @@ const ChatMessageSchema = z.object({
   chatId: z.string().optional(),
   workflowId: z.string().optional(),
   workflowName: z.string().optional(),
-  model: z.enum(COPILOT_MODEL_IDS).optional().default('claude-4.6-opus'),
+  model: z.string().optional().default('claude-opus-4-6'),
   mode: z.enum(COPILOT_REQUEST_MODES).optional().default('agent'),
   prefetch: z.boolean().optional(),
   createNewChat: z.boolean().optional().default(false),
   stream: z.boolean().optional().default(true),
   implicitFeedback: z.string().optional(),
   fileAttachments: z.array(FileAttachmentSchema).optional(),
-  provider: z.string().optional().default('openai'),
+  provider: z.string().optional(),
   conversationId: z.string().optional(),
   contexts: z
     .array(
@@ -173,14 +215,14 @@ export async function POST(req: NextRequest) {
     let currentChat: any = null
     let conversationHistory: any[] = []
     let actualChatId = chatId
+    const selectedModel = model || 'claude-opus-4-6'
 
     if (chatId || createNewChat) {
-      const defaultsForChatRow = getCopilotModel('chat')
       const chatResult = await resolveOrCreateChat({
         chatId,
         userId: authenticatedUserId,
         workflowId,
-        model: defaultsForChatRow.model,
+        model: selectedModel,
       })
       currentChat = chatResult.chat
       actualChatId = chatResult.chatId || chatId
@@ -191,8 +233,6 @@ export async function POST(req: NextRequest) {
       conversationHistory = history.history
     }
 
-    const defaults = getCopilotModel('chat')
-    const selectedModel = model || defaults.model
     const effectiveMode = mode === 'agent' ? 'build' : mode
     const effectiveConversationId =
       (currentChat?.conversationId as string | undefined) || conversationId
@@ -205,6 +245,7 @@ export async function POST(req: NextRequest) {
         userMessageId: userMessageIdToUse,
         mode,
         model: selectedModel,
+        provider,
         conversationHistory,
         contexts: agentContexts,
         fileAttachments,
@@ -283,7 +324,7 @@ export async function POST(req: NextRequest) {
           }
 
           if (actualChatId && !currentChat?.title && conversationHistory.length === 0) {
-            generateChatTitle(message)
+            requestChatTitleFromCopilot({ message, model: selectedModel, provider })
               .then(async (title) => {
                 if (title) {
                   await db
@@ -372,10 +413,7 @@ export async function POST(req: NextRequest) {
       content: nonStreamingResult.content,
       toolCalls: nonStreamingResult.toolCalls,
       model: selectedModel,
-      provider:
-        (requestPayload?.provider as Record<string, unknown>)?.provider ||
-        env.COPILOT_PROVIDER ||
-        'openai',
+      provider: typeof requestPayload?.provider === 'string' ? requestPayload.provider : undefined,
     }
 
     logger.info(`[${tracker.requestId}] Non-streaming response from orchestrator:`, {
@@ -413,7 +451,7 @@ export async function POST(req: NextRequest) {
       // Start title generation in parallel if this is first message (non-streaming)
       if (actualChatId && !currentChat.title && conversationHistory.length === 0) {
         logger.info(`[${tracker.requestId}] Starting title generation for non-streaming response`)
-        generateChatTitle(message)
+        requestChatTitleFromCopilot({ message, model: selectedModel, provider })
           .then(async (title) => {
             if (title) {
               await db

apps/sim/app/api/copilot/models/route.ts

@@ -0,0 +1,84 @@
+import { createLogger } from '@sim/logger'
+import { type NextRequest, NextResponse } from 'next/server'
+import { SIM_AGENT_API_URL } from '@/lib/copilot/constants'
+import { authenticateCopilotRequestSessionOnly } from '@/lib/copilot/request-helpers'
+import type { AvailableModel } from '@/lib/copilot/types'
+import { env } from '@/lib/core/config/env'
+
+const logger = createLogger('CopilotModelsAPI')
+
+interface RawAvailableModel {
+  id: string
+  friendlyName?: string
+  displayName?: string
+  provider?: string
+}
+
+function isRawAvailableModel(item: unknown): item is RawAvailableModel {
+  return (
+    typeof item === 'object' &&
+    item !== null &&
+    'id' in item &&
+    typeof (item as { id: unknown }).id === 'string'
+  )
+}
+
+export async function GET(_req: NextRequest) {
+  const { userId, isAuthenticated } = await authenticateCopilotRequestSessionOnly()
+  if (!isAuthenticated || !userId) {
+    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
+  }
+
+  const headers: Record<string, string> = {
+    'Content-Type': 'application/json',
+  }
+  if (env.COPILOT_API_KEY) {
+    headers['x-api-key'] = env.COPILOT_API_KEY
+  }
+
+  try {
+    const response = await fetch(`${SIM_AGENT_API_URL}/api/get-available-models`, {
+      method: 'GET',
+      headers,
+      cache: 'no-store',
+    })
+
+    const payload = await response.json().catch(() => ({}))
+    if (!response.ok) {
+      logger.warn('Failed to fetch available models from copilot backend', {
+        status: response.status,
+      })
+      return NextResponse.json(
+        {
+          success: false,
+          error: payload?.error || 'Failed to fetch available models',
+          models: [],
+        },
+        { status: response.status }
+      )
+    }
+
+    const rawModels = Array.isArray(payload?.models) ? payload.models : []
+    const models: AvailableModel[] = rawModels
+      .filter((item: unknown): item is RawAvailableModel => isRawAvailableModel(item))
+      .map((item: RawAvailableModel) => ({
+        id: item.id,
+        friendlyName: item.friendlyName || item.displayName || item.id,
+        provider: item.provider || 'unknown',
+      }))
+
+    return NextResponse.json({ success: true, models })
+  } catch (error) {
+    logger.error('Error fetching available models', {
+      error: error instanceof Error ? error.message : String(error),
+    })
+    return NextResponse.json(
+      {
+        success: false,
+        error: 'Failed to fetch available models',
+        models: [],
+      },
+      { status: 500 }
+    )
+  }
+}