Using GoogleAppsScript to link OuraRing's sleep score to the calendar

main.gs

/**
 * Refer to  https://tech.affordigitalife.com/oura-api-sleep-log/
 */
function main() {
  const days = 10;
  for (let i = 0; i < days; i++) {
    let today = new Date()
    today.setDate(today.getDate() - i)
    let yesterday = new Date()
    yesterday.setDate(yesterday.getDate() - (i + 1))
    setSleepForDay(today, yesterday)
  }
}

function connectOuraAPI(api, parameters) {
  const token = getProperty('OURA_API_KEY')
  const baseUrl = 'https://api.ouraring.com/v2/usercollection/'
  let url = `${baseUrl}${api}?`
  for (let parameter in parameters){
    url += `${parameter}=${parameters[parameter]}&`
    if(Object.keys(parameters).slice(-1)[0] === parameter){
      url = url.slice(0, -1)
    }
  }
  let requestOptions = { 
    muteHttpExceptions: true,
    method: 'GET', 
    headers: {
      'Authorization': `Bearer ${token}`
    }
  }
  let res = UrlFetchApp.fetch(url, requestOptions).getContentText()
  return JSON.parse(res)
}

function getSleep(parameters) {
  return connectOuraAPI('sleep', parameters)
}

function getSleepScore(parameters) {
  return connectOuraAPI('daily_sleep', parameters)
}

function addEventGoogleCalendar(score, bedtime, awakeTime, description = ''){
  const CALENDAR_ID = getProperty('GOOGLE_CALENDAR_ID_OURA')
  const calendar = CalendarApp.getCalendarById(CALENDAR_ID)
  calendar.createEvent(`睡眠スコア：${score}`, new Date(bedtime), new Date(awakeTime), {
    description: description
  })
}

function getEventForDayGoogleCalendar(day) {
  const CALENDAR_ID = getProperty('GOOGLE_CALENDAR_ID_OURA')
  const calendar = CalendarApp.getCalendarById(CALENDAR_ID)
  return calendar.getEventsForDay(day)
}

function setSleepForDay(today, yesterday) {
    let events = getEventForDayGoogleCalendar(today)
    console.log(events)
    if (events.length > 0) {
      return 0;
    }
    let parameters = {
      start_date: formatDate(yesterday),
      end_date: formatDate(today)
    }
    let sleep = getSleep(parameters)

    parameters.start_date = formatDate(today)
    let dairySleep = getSleepScore(parameters)
    if (!dairySleep.data[0]) {
      console.log('data not found');
      return 0;
    }
    let dairySleepScore = dairySleep.data[0].score

    for (let s of sleep.data){
      console.log(s)
      addEventGoogleCalendar(dairySleepScore, s.bedtime_start, s.bedtime_end, JSON.stringify(sleep) + '\n' + JSON.stringify(dairySleep))
    }

    return sleep.data.length;
}

function getProperty(key) {
  const prop = PropertiesService.getScriptProperties();

  return prop.getProperty(key);
}

function formatDate(date) {
  return Utilities.formatDate(date, 'JST', 'yyyy-MM-dd');
}