#!/usr/bin/env node

// @ts-check
import { program } from "commander";
import chalk from "chalk";

import admin from "firebase-admin";

// WARN: FirebaseコンソールからダウンロードしたFirebaseの秘密鍵はインターネット上に公開しないこと
async function initializeFirebase() {
  const SecretKey = await import(
    "<JSONファイルのPath>"
  );
  const serviceAccount = SecretKey.default;

  admin.initializeApp({
    credential: admin.credential.cert(serviceAccount),
  });
}

/**
 *
 * @param {string} registrationToken
 * @returns {object}
 */
function buildMessage(registrationToken) {
  // TODO: CLIのOptionでメッセージ内容を渡せるようにしてもいいかも;
  return {
    data: {
      score: "850",
      time: "2:45",
    },
    token: registrationToken,
  };
}

/**
 *
 * @param {object} message
 */
async function sendMessage(message) {
  const messaging = admin.messaging();
  try {
    const response = await messaging.send(message);
    console.log(chalk.green(`Successfully sent message: ${response}`));
  } catch (error) {
    console.log(chalk.red(`Error sending message: ${error}`));
  }
}

program
  .version("1.0.0")
  .description("Send push notifications to one specified device.")
  .argument("<token>", "token registered in FCM")
  .action(async (token) => {
    console.log(chalk.blue(`token = ${token}`));
    await initializeFirebase();
    const message = buildMessage(token);
    await sendMessage(message);
  })
  .parse(process.argv);