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update_name.rb

#! /usr/bin/env ruby
# -*- coding: utf-8 -*-
gem 'twitter', '< 5.0.0'

require 'rainbow'
require 'tweetstream'
require 'twitter'

TweetStream.configure do |config|
  config.consumer_key = ENV['CONSUMER_KEY']
  config.consumer_secret = ENV['CONSUMER_SECRET']
  config.oauth_token = ENV['ACCESS_TOKEN']
  config.oauth_token_secret = ENV['ACCESS_TOKEN_SECRET']
end

Twitter.configure do |config|
  config.consumer_key = ENV['CONSUMER_KEY']
  config.consumer_secret = ENV['CONSUMER_SECRET']
  config.oauth_token = ENV['ACCESS_TOKEN']
  config.oauth_token_secret = ENV['ACCESS_TOKEN_SECRET']
end

$runnning = true

TweetStream::Client.new.on_timeline_status { |status|
  text = status.text
  if text =~ /[@＠]#{ENV['SCREEN_NAME']}/ and not status.retweeted_status

    if status.user.screen_name == ENV['SCREEN_NAME']
      case text
      when /start$/
        $runnning = true
        puts 'started.'
      when /stop$/
        $runnning = false
        puts 'stopped.'
      end
    end

    if $runnning
      name = text[/(?:(?:名前[をの]?変更|(?:update|change)[ 　_]name)[\s　](?<name>(?:.|\s){1,20})|(?<name>(?:.|\s){1,20})(?:.|\s)*[(（]\s*[@＠]#{ENV['SCREEN_NAME']}\s*[)）])/i, 'name']
      if name
        puts "#{status.created_at.to_s.color(:yellow)} @#{status.user.screen_name}: #{text}"
        puts "update @#{ENV['SCREEN_NAME']}\'s name to \"#{name}\""
        Twitter.update_profile(name: name.delete("\r\n"))
        Twitter.update(".@#{status.user.screen_name} によって名前が\"#{name}\"に変更されました。", in_reply_to_status_id: status.id)
      end
    end
  end
}.userstream