import * as wmill from "https://deno.land/x/windmill@v1.85.0/mod.ts";

type Gdrive = {

  token: string;

};

export async function main(gdrive_auth: Gdrive) {

  const START_PAGE_URL = `https://www.googleapis.com/drive/v3/changes/startPageToken/`;

  let last_start_page_token: string | undefined =

    await wmill.getInternalState();

  const token = gdrive_auth["token"];

  if (last_start_page_token == undefined) {

    const START_PAGE_URL = `https://www.googleapis.com/drive/v3/changes/startPageToken`;

    const response_sp = await fetch(START_PAGE_URL, {

      method: "GET",

      headers: {

        Authorization: "Bearer " + token,

        "Content-Type": "application/json",

      },

    });

    const start_page_result = await response_sp.json();

    last_start_page_token = start_page_result["startPageToken"];

  }

  const CHECK_CHANGES_URL = `https://www.googleapis.com/drive/v3/changes/?pageToken=${last_start_page_token}`;

  const changes_response = await fetch(CHECK_CHANGES_URL, {

    method: "GET",

    headers: {

      Authorization: "Bearer " + token,

      "Content-Type": "application/json",

    },

  });

  const result_changes = await changes_response.json();

  await wmill.setInternalState(result_changes["newStartPageToken"]);

  return result_changes["changes"];

}