import { Handlers } from "$fresh/server.ts";
import connect from "$root/databases/connect.ts";

export const handler: Handlers = {
  async GET(_request, ctx) {
    try {
      const { id } = ctx.params;

      if (!id) {
        return new Response("Invalid request: Missing ID", { status: 400 });
      }

      using connection = connect("mobility");

      const query = connection.database.prepare(
        "SELECT attestationFile FROM mobility WHERE id = ?",
      );
      const result = query.get(id);

      if (!result || !result.attestationFile) {
        return new Response("No file found for the given ID", { status: 404 });
      }

      return new Response(result.attestationFile, {
        status: 200,
        headers: {
          "Content-Type": "application/pdf",
          "Content-Disposition": `attachment; filename="attestation_${id}.pdf"`,
        },
      });
    } catch (error) {
      console.error("Error fetching file:", error);
      return new Response("Failed to fetch file", { status: 500 });
    }
  },
};