feat(macos): add Canvas A2UI renderer

vendor/a2ui/specification/0.8/eval/src/flows.ts

@@ -0,0 +1,71 @@
+/*
+ Copyright 2025 Google LLC
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import { googleAI } from "@genkit-ai/google-genai";
+import { genkit, z } from "genkit";
+import { openAI } from "@genkit-ai/compat-oai/openai";
+import { anthropic } from "genkitx-anthropic";
+
+const plugins = [];
+
+if (process.env.GEMINI_API_KEY) {
+  console.log("Initializing Google AI plugin...");
+  plugins.push(
+    googleAI({
+      apiKey: process.env.GEMINI_API_KEY!,
+      experimental_debugTraces: true,
+    }),
+  );
+}
+if (process.env.OPENAI_API_KEY) {
+  console.log("Initializing OpenAI plugin...");
+  plugins.push(openAI());
+}
+if (process.env.ANTHROPIC_API_KEY) {
+  console.log("Initializing Anthropic plugin...");
+  plugins.push(anthropic({ apiKey: process.env.ANTHROPIC_API_KEY! }));
+}
+
+export const ai = genkit({
+  plugins,
+});
+
+// Define a UI component generator flow
+export const componentGeneratorFlow = ai.defineFlow(
+  {
+    name: "componentGeneratorFlow",
+    inputSchema: z.object({
+      prompt: z.string(),
+      model: z.any(),
+      config: z.any().optional(),
+      schema: z.any(),
+    }),
+    outputSchema: z.any(),
+  },
+  async ({ prompt, model, config, schema }) => {
+    // Generate structured component data using the schema from the file
+    const { output } = await ai.generate({
+      prompt,
+      model,
+      output: { contentType: "application/json", jsonSchema: schema },
+      config,
+    });
+
+    if (!output) throw new Error("Failed to generate component");
+
+    return output;
+  },
+);