当日のカレンダーをサマリをメールで送信する

calendar_summary.gs

function main() {
  const calendarId = "YOUR_GMAIL_ADDRESS";
  const calendar = CalendarApp.getCalendarById(calendarId);
  const now = new Date();
  const weekday = now.getDay();
  const events = calendar.getEventsForDay(now);

  var horidayCalendar = CalendarApp.getCalendarById('ja.japanese#holiday@group.v.calendar.google.com');
  if (horidayCalendar.getEventsForDay(now, {max: 1}).length > 0) {
    return;
  }

  // 休日は実行させない
  if (weekday == 0 || weekday == 6) {
    return;
  }

  var title = `${day(now)}の会議の予定`;
  var body = "";
  if (events.length == 0) {
    body = "今日は会議の予定はありません";
  } else {
    body += "今日の会議の予定は\n";
    events.forEach((event) => {
      body += `${getTime(event.getStartTime())} - ${getTime(event.getEndTime())}\n`;
    });
    body += `の${events.length}件です`;
  }
  MailApp.sendEmail({
    to: "TO_EMAIL_ADDRESS",
    subject: title,
    body: body
  });
}

/**
 * yyyy/MM/ddにして返す
 * 
 * @param {Date} date
 */
function day(date) {
  const year = date.getFullYear();
  const month = ('00' + (date.getMonth() + 1)).slice(-2);
  const day = ('00' + date.getDate()).slice(-2);
  return `${year}/${month}/${day}`
}

/**
 * カレンダーの日付
 * 
 * @param {Date} date
 */
function getTime(date) {
  const hours = ('00' + date.getHours()).slice(-2);
  const minutes = ('00' + date.getMinutes()).slice(-2);
  return `${hours}:${minutes}`
}