feat(ai): Vercel AI SDK provider factory with BYOK and per-use-case model prefs

Provider factory (OpenAI/Anthropic/OpenRouter/Ollama). generateObject for all outputs. Features: recipe generation, photo-to-recipe vision, variations, drink/meal pairings, ingredient substitution, recipe adaptation, nutrition analysis, URL import, meal plan gen. User BYOK keys (AES-256-GCM). Per-use-case model preferences (text/vision/mealPlan). Site-level key override via admin settings.
2026-07-01 08:10:19 +02:00
parent 84d6cfeb07
commit d9d58fd01a
26 changed files with 1656 additions and 0 deletions
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+import { generateObject } from "ai";
+import { z } from "zod";
+import { resolveModel, type AiConfig } from "../factory";
+
+const PairingsOutputSchema = z.object({
+  pairings: z.array(z.object({
+    name: z.string(),
+    role: z.enum(["starter", "side", "salad", "bread", "drink", "dessert", "sauce"]),
+    description: z.string(),
+    whyItPairs: z.string(),
+    difficulty: z.enum(["easy", "medium", "hard"]),
+    prepTimeMins: z.number().int().optional(),
+  })),
+});
+
+export type PairingSuggestion = z.infer<typeof PairingsOutputSchema>["pairings"][number];
+
+const LANG: Record<string, string> = { en: "English", fr: "French" };
+
+export async function suggestPairings(
+  recipe: {
+    title: string;
+    description?: string | null;
+    difficulty?: string | null;
+    dietaryTags?: Record<string, boolean> | null;
+    ingredients: Array<{ rawName: string }>;
+  },
+  count = 4,
+  config?: AiConfig,
+  locale?: string
+): Promise<PairingSuggestion[]> {
+  const model = resolveModel(config);
+  const lang = LANG[locale ?? "en"] ?? "English";
+
+  const dietaryContext = recipe.dietaryTags
+    ? Object.entries(recipe.dietaryTags).filter(([, v]) => v).map(([k]) => k).join(", ")
+    : "";
+
+  const { object } = await generateObject({
+    model,
+    schema: PairingsOutputSchema,
+    system:
+      `You are an expert chef and menu planner. Suggest complementary dishes that form a balanced, cohesive complete meal. Consider flavor profiles, cooking techniques, dietary restrictions, and cultural harmony. Avoid duplicating ingredients heavily. Suggest a balanced mix of roles (starter, sides, dessert, drinks). Respond in ${lang}.`,
+    prompt: `Suggest ${count} dishes that pair well with this recipe to form a complete meal:\n\nRecipe: ${recipe.title}\n${recipe.description ? `Description: ${recipe.description}` : ""}\n${dietaryContext ? `Dietary: ${dietaryContext}` : ""}\nKey ingredients: ${recipe.ingredients.slice(0, 8).map((i) => i.rawName).join(", ")}`,
+  });
+
+  return object.pairings;
+}