ncurses_twitter.rb

require 'rubygems'
require 'ffi-ncurses'
require 'twitter'
require 'yaml'
require 'singleton'

module WorkingTitle
  class AuthStore
    include Singleton

    attr_reader :data

    def initialize
      @file= 'pin.yml'
      @data= YAML::load_file(@file)
    rescue
      File.open(@file, 'w') {|f| f.write('')} 
      @data= {}
    end

    def method_missing(method, *val)
      method = method.to_s
      if method.match(/=/)
        @data[method.gsub('=','')]= val[0]
        File.open(@file, 'w') {|f| f.write(@data.to_yaml)} 
        true
      else
        return @data[method]
      end
    end
  end

  class Client

    attr_reader :auth_url

    def initialize
      @oauth= Twitter::OAuth.new('OCr3t8IV5pTjF5FGApfPow', 'QJOjtQpoordkSe0dLveRSArrgeRO2P1feGlvurGe0')
      @auth_data= AuthStore.instance
    end

    def authorize
      if @auth_data.atoken && @auth_data.asecret
        @oauth.authorize_from_access(@auth_data.atoken, @auth_data.asecret)
        true
      elsif @auth_data.pin && @auth_data.rtoken && @auth_data.rsecret
        @oauth.authorize_from_request(@auth_data.rtoken, @auth_data.rsecret, @auth_data.pin)
        @auth_data.atoken= @oauth.access_token.token
        @auth_data.asecret= @oauth.access_token.secret
        true
      else
        @auth_data.rtoken= @oauth.request_token.token
        @auth_data.rsecret= @oauth.request_token.secret
        @auth_url= @oauth.request_token.authorize_url
        false
      end
    end

    def client
      @client ||= Twitter::Base.new(@oauth)
    end
  end

  class NcursesClient
    include FFI::NCurses

    def initialize
      @client= WorkingTitle::Client.new
    end

    def run
      begin
        stdscr = initscr
        clear
        curs_set 1
        unless @client.authorize
          get_pin
        end
        draw_output_win(@client.client.friends_timeline.collect{|i| i.text}.join("\n"))
        draw_input_win
      ensure
        endwin
      end
    end

    private

    def draw_output_win(content)
      win = newwin(30, 80, 0, 0)
      wborder(win, 0,  0, 0, 0, 0, 0, 0, 0)
      waddstr(win, content)
      wrefresh(win)
      delwin(win)
    end

    def draw_input_win
      win = newwin(2, 80, 33, 0)
      wborder(win, 0, 0, 1, 0, 0, 0, 0, 0)
      wrefresh(win)
      input= ''
      while true
        while !(char= wgetch(win).chr).match("\n")
          input+= char
        end
        @client.client.update(input)
        wclear(win)
      end
      delwin(win)
    end

    def get_pin
      clear
      addstr("Go to #{@client.auth_url}. And enter the PIN: ")
      pin = ''
      while (char= getch.chr).match(/[0-9]/)
        pin += char
      end
      WorkingTitle::AuthStore.instance.pin= pin
      @client.authorize
    end
  end
end

WorkingTitle::NcursesClient.new.run