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
@@ -0,0 +1,40 @@
+import { generateObject } from "ai";
+import { z } from "zod";
+import { resolveModel, type AiConfig } from "../factory";
+
+const TranslationOutputSchema = z.object({
+  title: z.string(),
+  description: z.string(),
+  ingredients: z.array(z.object({
+    rawName: z.string(),
+    note: z.string().optional(),
+  })),
+  steps: z.array(z.object({
+    instruction: z.string(),
+  })),
+});
+
+export type TranslatedRecipe = z.infer<typeof TranslationOutputSchema>;
+
+export async function translateRecipe(
+  recipe: {
+    title: string;
+    description?: string | null;
+    ingredients: Array<{ rawName: string; note?: string | null }>;
+    steps: Array<{ instruction: string }>;
+  },
+  targetLanguage: string,
+  config?: AiConfig
+): Promise<TranslatedRecipe> {
+  const model = resolveModel(config);
+
+  const { object } = await generateObject({
+    model,
+    schema: TranslationOutputSchema,
+    system:
+      "You are a professional culinary translator. Translate recipes accurately, preserving culinary meaning, cooking terms, and cultural context. Keep ingredient quantities and units as-is (numbers and unit abbreviations are universal). Only translate text content.",
+    prompt: `Translate the following recipe into ${targetLanguage}. Return the same structure with translated text.\n\nTitle: ${recipe.title}\nDescription: ${recipe.description ?? ""}\nIngredients: ${recipe.ingredients.map((i) => `- ${i.rawName}${i.note ? ` (${i.note})` : ""}`).join("\n")}\nSteps: ${recipe.steps.map((s, i) => `${i + 1}. ${s.instruction}`).join("\n")}`,
+  });
+
+  return object;
+}