import { OpenAI } from "openai";
// Define your JSON schema for a calendar event
const CalendarEventSchema = {
  type: "object",
  properties: {
    name: { type: "string" },
    date: { type: "string" },
    participants: { type: "array", items: { type: "string" } },
  },
  required: ["name", "date", "participants"],
};
export default {
  async fetch(request, env) {
    const client = new OpenAI({
      apiKey: env.OPENAI_API_KEY,
      // Optional: use AI Gateway to bring logs, evals & caching to your AI requests
      // https://developers.cloudflare.com/ai-gateway/usage/providers/openai/
      // baseUrl: "https://gateway.ai.cloudflare.com/v1/{account_id}/{gateway_id}/openai"
    });
    const response = await client.chat.completions.create({
      model: "gpt-4o-2024-08-06",
      messages: [
        { role: "system", content: "Extract the event information." },
        {
          role: "user",
          content: "Alice and Bob are going to a science fair on Friday.",
        },
      ],
      // Use the `response_format` option to request a structured JSON output
      response_format: {
        // Set json_schema and provide ra schema, or json_object and parse it yourself
        type: "json_schema",
        schema: CalendarEventSchema, // provide a schema
      },
    });
    // This will be of type CalendarEventSchema
    const event = response.choices[0].message.parsed;
    return Response.json({
      calendar_event: event,
    });
  },
};