google-calendar-idobata.rb

# -*- coding: utf-8 -*-

require 'rubygems'
require 'google/api_client'
require 'yaml'
require 'time'
require 'date'
require 'idobata'

class GoogleCalendarManager
  def initialize(api_yaml_path)
    @client = Google::APIClient.new
    @params = nil
    oauth_yaml = YAML.load_file(api_yaml_path)
    @client.authorization.client_id = oauth_yaml['client_id']
    @client.authorization.client_secret = oauth_yaml['client_secret']
    @client.authorization.scope = oauth_yaml['scope']
    @client.authorization.refresh_token = oauth_yaml['refresh_token']
    @client.authorization.access_token = oauth_yaml['access_token']
  end

  def params=(params)
    @params = params
  end

  def find_calendar_id(calendar_name)
    cal = @client.discovered_api('calendar', 'v3')
    calendar_list = @client.execute(:api_method => cal.calendar_list.list)
    calendar_list.data.items.each do |item|
      if item['summary'] == calendar_name
        return item['id']
      end
    end
    return nil
  end

  def events
    unless @params
      puts("'params' is empty")
      return []
    end

    events = []
    cal = @client.discovered_api('calendar', 'v3')
    result = @client.execute(:api_method => cal.events.list, :parameters => @params)

    result.data.items.each do |item|
      events << item
    end

    return events
  end
end

class TimeCalculator
  def self.get_term_today
    return self.get_term_in_n_days(0)
  end

  def self.get_term_in_n_days(n)
    today = Date.today
    in_n_days = today + n
    year  = in_n_days.year
    month = in_n_days.month
    day   = in_n_days.day

    time_min = Time.utc(year, month, day, 0).iso8601
    time_max = Time.utc(year, month, day, 23).iso8601
    term = {
      'time_min' => time_min,
      'time_max' => time_max,
    }
    return term
  end
end

googleCalendarManager = GoogleCalendarManager.new('.google-api.yaml')
calendar_id = googleCalendarManager.find_calendar_id('YOUR_CALENDAR_NAME')
term = TimeCalculator.get_term_today
params = {
  'calendarId'   => calendar_id,
  'orderBy'      => 'startTime',
  'timeMin'      => term['time_min'],
  'timeMax'      => term['time_max'],
  'singleEvents' => 'True'
}
googleCalendarManager.params=(params)
events = googleCalendarManager.events

hook_url = "https://idobata.io/hook/YOUR_HOOK_URL"
Idobata.hook_url = hook_url
events.each do |event|
  Idobata::Message.create(source: event['summary'])
end