supabase/functions/_shared/openai-service.ts

@@ -50,11 +50,7 @@ export class OpenAIService {
   private readonly openai: OpenAI;
   private readonly bucket: string;
 
-    private constructor(
-        client: SupabaseClient,
-        openai: OpenAI,
-        bucket: string,
-    ) {
+  private constructor(client: SupabaseClient, openai: OpenAI, bucket: string) {
     this.supabase = client;
     this.openai = openai;
     this.bucket = bucket;
@@ -80,41 +76,21 @@ export class OpenAIService {
     return new OpenAIService(client, openai, bucket);
   }
 
+  async createConversation(metadata?: Record<string, string>) {
+    const conversation = await this.openai.conversations.create({
+      metadata,
+    });
+    return conversation;
+  }
+
   async createStructuredResponse<TOutput = unknown>(
     options: StructuredResponseOptions,
     files?: File[],
   ): Promise<StructuredResponseResult<TOutput>> {
     try {
-            const uploadedToStorage = await this.uploadFilesToStorage(
-                files ?? [],
-            );
+      const uploadedToStorage = await this.uploadFilesToStorage(files ?? []);
       const openaiFileIds = await this.uploadFilesToOpenAI(files ?? []);
 
-            const newOptions = { ...options };
-
-            // Attach file references to the request as an extra user message
-            if (openaiFileIds.length > 0) {
-                const fileParts:
-                    OpenAITypes.OpenAI.Responses.ResponseInputFile[] =
-                        openaiFileIds.map((id) => ({
-                            type: "input_file",
-                            file_id: id,
-                        }));
-
-                const arr = Array.isArray(options.input) ? options.input : [];
-                arr.push({
-                    role: "user",
-                    content: [
-                        ...fileParts,
-                        {
-                            type: "input_text",
-                            text: "Usa estos archivos como referencia",
-                        },
-                    ],
-                });
-                newOptions.input = arr;
-            }
-
       // Narrow to non-streaming response
       const openaiRaw = (await this.openai.responses.create(
         newOptions as OpenAITypes.OpenAI.Responses.ResponseCreateParamsNonStreaming,
@@ -122,7 +98,8 @@ export class OpenAIService {
 
       const { model, id: responseId } = openaiRaw;
       const usage = openaiRaw?.usage ?? null;
-            const conversationId = (
+      const conversationId =
+        (
           openaiRaw as OpenAITypes.OpenAI.Responses.Response & {
             conversation_id?: string | null;
           }
@@ -134,14 +111,13 @@ export class OpenAIService {
 
       // Prefer `output_text` if present (SDK convenience)
       const maybeOutputText = openaiRaw.output_text;
-            if (
-                typeof maybeOutputText === "string" &&
-                maybeOutputText.length > 0
-            ) {
+      if (typeof maybeOutputText === "string" && maybeOutputText.length > 0) {
         outputText = maybeOutputText;
         try {
           output = JSON.parse(maybeOutputText) as TOutput;
-                } catch { /* non-JSON text, keep as text only */ }
+        } catch {
+          /* non-JSON text, keep as text only */
+        }
       } else {
         // Fallback: attempt to serialize `openaiRaw.output` into text
         const maybeOutput = openaiRaw.output as unknown;
@@ -149,7 +125,9 @@ export class OpenAIService {
           try {
             outputText = JSON.stringify(maybeOutput);
             output = maybeOutput as TOutput;
-                    } catch { /* ignore */ }
+          } catch {
+            /* ignore */
+          }
         }
       }
 
@@ -208,9 +186,7 @@ export class OpenAIService {
         ids.push(created.id);
       } catch (e) {
         throw new Error(
-                    `OpenAI file upload failed: ${
-                        (e as Error)?.message ?? String(e)
-                    }`,
+          `OpenAI file upload failed: ${(e as Error)?.message ?? String(e)}`,
         );
       }
     }

supabase/functions/create-chat-conversation/index.ts

@@ -1,5 +1,7 @@
 // Setup type definitions for built-in Supabase Runtime APIs
 import "@supabase/functions-js/edge-runtime.d.ts";
+import { corsHeaders } from "../_shared/cors.ts";
+import { OpenAIService } from "../_shared/openai-service.ts";
 import { createClient } from "https://esm.sh/@supabase/supabase-js@2";
 
 type WebhookPayload = {
@@ -13,9 +15,6 @@ type WebhookPayload = {
 const SUPABASE_URL = Deno.env.get("SUPABASE_URL") ?? "";
 const SUPABASE_SERVICE_ROLE_KEY =
   Deno.env.get("SUPABASE_SERVICE_ROLE_KEY") ?? "";
-const OPENAI_API_KEY = Deno.env.get("OPENAI_API_KEY") ?? "";
-const OPENAI_BASE_URL =
-  Deno.env.get("OPENAI_BASE_URL") ?? "https://api.openai.com/v1";
 
 const ALLOWED_SCHEMA = "public";
 const ALLOWED_TABLES = new Set(["planes_estudio", "asignaturas"]);
@@ -27,27 +26,16 @@ const supabase = createClient(SUPABASE_URL, SUPABASE_SERVICE_ROLE_KEY, {
 function jsonResponse(status: number, body: Record<string, unknown>) {
   return new Response(JSON.stringify(body), {
     status,
-    headers: { "Content-Type": "application/json" },
+    headers: { "Content-Type": "application/json", ...corsHeaders },
   });
 }
 
-async function createConversationId(metadata: Record<string, string>) {
-  const response = await fetch(`${OPENAI_BASE_URL}/conversations`, {
-    method: "POST",
-    headers: {
-      "Content-Type": "application/json",
-      Authorization: `Bearer ${OPENAI_API_KEY}`,
-    },
-    body: JSON.stringify({ metadata }),
-  });
-
-  if (!response.ok) {
-    const errorText = await response.text();
-    throw new Error(`OpenAI error: ${response.status} ${errorText}`);
-  }
-
-  const data = await response.json();
-  const conversationId = data?.id as string | undefined;
+async function createConversationId(
+  openaiService: OpenAIService,
+  metadata: Record<string, string>,
+) {
+  const conversation = await openaiService.createConversation(metadata);
+  const conversationId = conversation?.id as string | undefined;
 
   if (!conversationId) {
     throw new Error("OpenAI response missing conversation id");
@@ -65,8 +53,9 @@ Deno.serve(async (req) => {
     return jsonResponse(500, { error: "Supabase env vars missing" });
   }
 
-  if (!OPENAI_API_KEY) {
-    return jsonResponse(500, { error: "OPENAI_API_KEY missing" });
+  const openaiService = OpenAIService.fromEnv();
+  if (!(openaiService instanceof OpenAIService)) {
+    return jsonResponse(500, { error: openaiService.message });
   }
 
   let payload: WebhookPayload;
@@ -108,7 +97,7 @@ Deno.serve(async (req) => {
 
   let conversationId: string;
   try {
-    conversationId = await createConversationId({
+    conversationId = await createConversationId(openaiService, {
       table,
       record_id: String(recordId),
     });