import { jsonError } from "../../common.js";

export async function onRequestPost(context: RequestContext) {
  const { destination, path } = context.data.body;

  if (typeof path !== "string" || path.length > 256)
    return jsonError("Invalid path", 400);

  const result = await context.env.D1.prepare(
    "SELECT path FROM short_links WHERE path = ?;",
  )
    .bind(path)
    .first();

  if (result)
    return jsonError(
      "Short link with that path already exists, please choose a different one.",
      400,
    );

  const url = new URL(destination);

  if (!["http:", "https:"].includes(url.protocol))
    return jsonError("Invalid URL", 400);

  await context.env.D1.prepare(
    "INSERT INTO short_links (created_at, destination, path, user) VALUES (?, ?, ?, ?);",
  )
    .bind(Date.now(), destination, path, context.data.current_user.id)
    .run();

  return new Response(null, {
    status: 204,
  });
}