3 and 4 completed

apps/admin/src/app/api/recommendations/generate/route.ts

@@ -6,7 +6,7 @@ import log from "@/lib/logger";
 
 export async function POST(req: Request) {
   try {
-    const { userId, useExternalModel } = await req.json();
+    const { userId, useExternalModel, modelProvider } = await req.json();
 
     if (!userId) {
       return NextResponse.json(
@@ -43,7 +43,78 @@ export async function POST(req: Request) {
 
     let parsedResponse;
 
-    if (useExternalModel) {
+    // Determine which AI provider to use
+    const provider =
+      modelProvider || (useExternalModel ? "deepseek" : "ollama");
+
+    if (provider === "openai") {
+      // Use OpenAI
+      const openaiApiKey = process.env.OPENAI_API_KEY;
+
+      if (!openaiApiKey) {
+        return NextResponse.json(
+          { error: "OpenAI API key not configured" },
+          { status: 500 },
+        );
+      }
+
+      log.debug("Using OpenAI model", { userId });
+
+      const openaiResponse = await fetch(
+        "https://api.openai.com/v1/chat/completions",
+        {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+            Authorization: `Bearer ${openaiApiKey}`,
+          },
+          body: JSON.stringify({
+            model: "gpt-4o-mini",
+            messages: [
+              {
+                role: "system",
+                content:
+                  'You are a professional fitness trainer and nutritionist. Always respond with valid JSON only, no markdown or code blocks. The response must have this exact structure: {"recommendationText": "string", "activityPlan": "string", "dietPlan": "string"}',
+              },
+              {
+                role: "user",
+                content: prompt,
+              },
+            ],
+            temperature: 0.7,
+            max_tokens: 1500,
+            response_format: { type: "json_object" },
+          }),
+        },
+      );
+
+      if (!openaiResponse.ok) {
+        const errorText = await openaiResponse.text();
+        log.error("OpenAI API request failed", new Error(errorText), {
+          status: openaiResponse.status,
+        });
+        return NextResponse.json(
+          { error: "Failed to generate recommendation from OpenAI" },
+          { status: 500 },
+        );
+      }
+
+      const openaiData = await openaiResponse.json();
+      log.debug("Received OpenAI response", { openaiData });
+
+      try {
+        const content = openaiData.choices[0].message.content;
+        parsedResponse = JSON.parse(content);
+      } catch (e) {
+        log.error("Failed to parse OpenAI response", e, {
+          response: openaiData,
+        });
+        return NextResponse.json(
+          { error: "Invalid response format from OpenAI" },
+          { status: 500 },
+        );
+      }
+    } else if (provider === "deepseek") {
       // Use DeepSeek AI
       const deepseekApiKey = process.env.DEEPSEEK_API_KEY;
 
@@ -203,11 +274,12 @@ export async function POST(req: Request) {
       id: crypto.randomUUID(),
       userId,
       fitnessProfileId: profile.id,
-      type: "ai_plan",
       recommendationText: parsedResponse.recommendationText,
       activityPlan: parsedResponse.activityPlan,
       dietPlan: parsedResponse.dietPlan,
       status: "pending",
+      generatedAt: new Date(),
+      updatedAt: new Date(),
     });
 
     return NextResponse.json(recommendation);