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 +1,60 @@
+import { generateObject } from "ai";
+import { z } from "zod";
+import { resolveModel, type AiConfig } from "../factory";
+
+const ImportedRecipeSchema = z.object({
+  title: z.string(),
+  description: z.string().optional(),
+  baseServings: z.number().int().min(1).optional(),
+  prepMins: z.number().int().min(0).optional(),
+  cookMins: z.number().int().min(0).optional(),
+  difficulty: z.enum(["easy", "medium", "hard"]).optional(),
+  dietaryTags: z.object({
+    vegan: z.boolean().optional(),
+    vegetarian: z.boolean().optional(),
+    glutenFree: z.boolean().optional(),
+    dairyFree: z.boolean().optional(),
+    nutFree: z.boolean().optional(),
+    halal: z.boolean().optional(),
+    kosher: z.boolean().optional(),
+  }).optional(),
+  ingredients: z.array(z.object({
+    rawName: z.string(),
+    quantity: z.string().optional(),
+    unit: z.string().optional(),
+    note: z.string().optional(),
+  })),
+  steps: z.array(z.object({
+    instruction: z.string(),
+    timerSeconds: z.number().int().optional(),
+  })),
+});
+
+export type ImportedRecipe = z.infer<typeof ImportedRecipeSchema>;
+
+export async function importFromPhoto(
+  imageBase64: string,
+  mimeType: "image/jpeg" | "image/png" | "image/webp",
+  config?: AiConfig,
+  _locale?: string,
+): Promise<ImportedRecipe> {
+  const model = resolveModel(config);
+
+  const { object } = await generateObject({
+    model,
+    schema: ImportedRecipeSchema,
+    system:
+      "You are a recipe extraction specialist. Extract the complete recipe from the provided image. Be precise with ingredient quantities and cooking instructions.",
+    messages: [
+      {
+        role: "user",
+        content: [
+          { type: "image", image: imageBase64, mimeType },
+          { type: "text", text: "Extract the complete recipe from this image." },
+        ],
+      },
+    ],
+  });
+
+  return object;
+}