integration test fixes + added new ai models and recipeSuggestion

src/routes/passport.routes.test.ts

@@ -482,8 +482,8 @@ describe('Passport Configuration', () => {
       const mockReq: Partial<Request> = {
         // An object that is not a valid UserProfile (e.g., missing 'role')
         user: {
-          user_id: 'invalid-user-id',
-        } as any,
+          user: { user_id: 'invalid-user-id' }, // Missing 'role' property
+        } as unknown as UserProfile, // Cast to UserProfile to satisfy req.user type, but it's intentionally malformed
       };
 
       // Act

src/routes/recipe.routes.ts

@@ -2,6 +2,8 @@
 import { Router } from 'express';
 import { z } from 'zod';
 import * as db from '../services/db/index.db';
+import { aiService } from '../services/aiService.server';
+import passport from './passport.routes';
 import { validateRequest } from '../middleware/validation.middleware';
 import { requiredString, numericIdParam, optionalNumeric } from '../utils/zodUtils';
 
@@ -28,6 +30,12 @@ const byIngredientAndTagSchema = z.object({
 
 const recipeIdParamsSchema = numericIdParam('recipeId');
 
+const suggestRecipeSchema = z.object({
+  body: z.object({
+    ingredients: z.array(z.string().min(1)).nonempty('At least one ingredient is required.'),
+  }),
+});
+
 /**
  * GET /api/recipes/by-sale-percentage - Get recipes based on the percentage of their ingredients on sale.
  */
@@ -121,4 +129,31 @@ router.get('/:recipeId', validateRequest(recipeIdParamsSchema), async (req, res,
   }
 });
 
+/**
+ * POST /api/recipes/suggest - Generates a simple recipe suggestion from a list of ingredients.
+ * This is a protected endpoint.
+ */
+router.post(
+  '/suggest',
+  passport.authenticate('jwt', { session: false }),
+  validateRequest(suggestRecipeSchema),
+  async (req, res, next) => {
+    try {
+      const { body } = req as unknown as z.infer<typeof suggestRecipeSchema>;
+      const suggestion = await aiService.generateRecipeSuggestion(body.ingredients, req.log);
+
+      if (!suggestion) {
+        return res
+          .status(503)
+          .json({ message: 'AI service is currently unavailable or failed to generate a suggestion.' });
+      }
+
+      res.json({ suggestion });
+    } catch (error) {
+      req.log.error({ error }, 'Error generating recipe suggestion');
+      next(error);
+    }
+  },
+);
+
 export default router;