rokuyo.rb

require 'net/http'
require 'uri'
require 'json'
require 'date'

SLACK_OAUTH_ACCESS_TOKEN = ENV['SLACK_OAUTH_ACCESS_TOKEN']

def getRokuyo
  today = Date.today
  endpoint = 'https://dateinfoapi.appspot.com/v1?date=' + today.to_s
  uri = URI.parse(endpoint)
  json = Net::HTTP.get(uri)
  result = JSON.parse(json)
  return result['rokuyo']
end

def getRokuyoDescription(rokuyo)
  case rokuyo
  when '先勝' then
    return '急ぐことは吉。午前は吉、午後は凶。'
  when '友引' then
    return '祝い事は良いが葬式などの凶事を忌む。朝夕は吉、正午は凶。'
  when '先負' then
    return '何事も控えめに平静を保つ日。午前は凶、午後は吉。'
  when '仏滅' then
    return '万事凶。葬式や法事は構わない。'
  when '大安' then
    return '万事大吉。特に婚礼に良い。'
  when '赤口' then
    return '凶日。特に祝事は大凶。火の元、刃物に要注意。正午は吉、朝夕は凶。'
  else
    return '不明'
  end
end

def getRokuyoEmoji(rokuyo)
  case rokuyo
  when '先勝' then
    return ':senshou:'
  when '友引' then
    return ':tomobiki:'
  when '先負' then
    return ':senpu:'
  when '仏滅' then
    return ':butsumetsu:'
  when '大安' then
    return ':taian:'
  when '赤口' then
    return ':shakkou:'
  else
    return ':kyomu:'
  end
end

def postToSlackAPI(description, emoji)
  if SLACK_OAUTH_ACCESS_TOKEN.nil?
    return "[ERROR] ENV['SLACK_OAUTH_ACCESS_TOKEN'] not found."
  end
  endpoint = 'https://slack.com/api/users.profile.set'.freeze
  uri = URI.parse(endpoint)

  req = Net::HTTP::Post.new(uri.request_uri)
  req['Content-Type'] = 'application/json;  charset=utf-8'
  req['Authorization'] = 'Bearer ' + SLACK_OAUTH_ACCESS_TOKEN
  payload = {
    profile: {
      status_text: description,
      status_emoji: emoji
    }
  }.to_json
  req.body = payload

  https = Net::HTTP.new(uri.host, uri.port)
  https.use_ssl = true
  return https.request(req)
end

rokuyo = getRokuyo
description = getRokuyoDescription(rokuyo)
emoji = getRokuyoEmoji(rokuyo)
response = postToSlackAPI(description, emoji)
puts response.body