import fs from "node:fs";
import readline from "node:readline";
import path from "node:path";
import { google } from "googleapis";
import { config } from "../src/config.js";

const credentials = JSON.parse(fs.readFileSync(config.credentialsPath, "utf8"));
const client = credentials.installed || credentials.web;
if (!client) throw new Error("Expected an installed or web OAuth client");
const oauth = new google.auth.OAuth2(client.client_id, client.client_secret, client.redirect_uris?.[0]);
const url = oauth.generateAuthUrl({
  access_type: "offline",
  prompt: "consent",
  scope: ["https://www.googleapis.com/auth/drive.file"],
});
console.log(`Open this URL and approve access:\n\n${url}\n`);
const terminal = readline.createInterface({ input: process.stdin, output: process.stdout });
terminal.question("Paste the returned authorization code: ", async (code) => {
  terminal.close();
  const { tokens } = await oauth.getToken(code.trim());
  fs.mkdirSync(path.dirname(config.tokenPath), { recursive: true });
  fs.writeFileSync(config.tokenPath, JSON.stringify(tokens, null, 2));
  console.log(`Google token saved to ${config.tokenPath}`);
});