#!/usr/bin/env ruby

require("irb")
require("irb/completion")
require("rubygems")

begin
  gem('twitter4r', '>0.3.0')
  require("twitter")
  require("twitter/console")
rescue Gem::LoadError
  begin
    gem("mbbx6spp-twitter4r", '>=0.3.1')
    require("twitter")
    require("twitter/console")
  rescue Gem::LoadError
    abort("Error: You must install either twitter4r gem from Rubyforge with version 0.3.1 or greater or the mbbx6spp-twitter4r gem from GitHub's servers with version 0.3.1 or greater (and make sure it is a recent version of the gem).")
  end
end

module Twitter
  class Console
    class << self
      @@OPTIONS = { :debugger => false, :config => "~/.twitter4r/accounts.yml" }
      def parse_options
        OptionParser.new do |opt|
          opt.banner = "Usage: t4rsh [environment] [options]"
          opt.on("--config=[~/.twitter4r/accounts.yml]", 'Use a specific config file.') { |v| @@OPTIONS[:config] = v }
          opt.parse!(ARGV)
        end
      end

      def config_file
        result = ENV["T4R_CONFIG"]
        file_name = File.expand_path('twitter.yml')
        result ||= file_name if File.exists?(file_name)
        file_name = File.expand_path('twitter.yml', 'config')
        result ||= file_name if File.exists?(file_name)
        file_name = File.expand_path('~/.twitter.yml')
        result ||= file_name if File.exists?(file_name)
        result
      end

      def account
        ENV["T4R_ENV"] || ENV["MERB_ENV"] || ENV["RAILS_ENV"]
      end

      def run(file)
        IRB.init_config(nil)
        # configuration...
        IRB.conf[:IRB_NAME] = "t4rsh"
        IRB.conf[:VERSION] = Twitter::Version.to_version
        IRB.conf[:USE_READLINE] = true
        IRB.conf[:PROMPT_MODE] = :T4RSH
        IRB.conf[:PROMPT][:T4RSH] = {
          :PROMPT_I => "%N[%3n:%i]> ", # top level prompt
          :PROMPT_C => "%N[%3n:%i]* ", # after conditional like "if"
          :PROMPT_S => "%N[%3n:%i]* ", # during continuing string
          :RETURN => "=> %s\n", # return value
        }
        IRB.start(file)
      end
    end
  end
end

#if __FILE__ == $0
  @twitter = nil
  config_file = Twitter::Console.config_file
  account = Twitter::Console.account

  if config_file && account
    @twitter = Twitter::Client.from_config(config_file, account)
    puts "Used #{config_file} to create client for #{account} account."
    puts "Access @twitter for instantiated client."
    Twitter::Console.run(__FILE__)
  else
    abort("Please make sure #{config_file} exists and contains your Twitter credentials (separated by account/environment) and that you specify the account/environment to use, e.g. if you have a 'test' section in your configuration file that you want to use set/export T4R_ENV=test as an environment variable or RAILS_ENV=test or MERB_ENV=test")
  end
#end