import { createAdminClient } from "npm:@insforge/sdk";

const corsHeaders = {
  "Access-Control-Allow-Origin": "*",
  "Access-Control-Allow-Methods": "POST, OPTIONS",
  "Access-Control-Allow-Headers": "Content-Type, Authorization",
};

export default async function (req: Request): Promise<Response> {
  if (req.method === "OPTIONS") {
    return new Response(null, { status: 204, headers: corsHeaders });
  }

  if (req.method !== "POST") {
    return new Response(JSON.stringify({ error: "Method not allowed" }), {
      status: 405,
      headers: { ...corsHeaders, "Content-Type": "application/json" },
    });
  }

  try {
    const admin = createAdminClient({
      baseUrl: Deno.env.get("INSFORGE_BASE_URL")!,
      apiKey: Deno.env.get("INSFORGE_API_KEY")!,
    });

    const { data, error } = await admin.database.rpc("increment_visitor");

    if (error) {
      return new Response(JSON.stringify({ error: error.message }), {
        status: 500,
        headers: { ...corsHeaders, "Content-Type": "application/json" },
      });
    }

    return new Response(JSON.stringify({ count: Number(data) }), {
      status: 200,
      headers: { ...corsHeaders, "Content-Type": "application/json" },
    });
  } catch (err) {
    return new Response(
      JSON.stringify({ error: err instanceof Error ? err.message : "Unknown error" }),
      {
        status: 500,
        headers: { ...corsHeaders, "Content-Type": "application/json" },
      }
    );
  }
}