require 'liquid'
require 'fileutils'
require 'models/post'
require 'models/app_config'
require 'twitter'
require 'twitter/tweet'

class TweetCommand
  LAYOUT = <<-LAYOUT
---
title: tweet {{tweet.id}}
timestamp: {{tweet.timestamp}}
layout: tweet
tweet: {{tweet.url}}
---

{{tweet.content}}
LAYOUT

  def initialize(tweet)
    @tweet = tweet
    @dir = Dir.pwd
  end

  def execute
    tweet = twitter.update(@tweet)

    new_file("_posts/tweet-#{tweet.id}.md",
             Liquid::Template.parse(LAYOUT).render({
               'tweet' => {
                 'content' => @tweet,
                 'id' => tweet.id,
                 'url' => tweet.uri.to_s,
                 'timestamp' => DateTime.now
               }
             }))
  end

  private
  def app_config
    @config ||= AppConfig.new(read_file("_config.yml"))
  end

  def new_file(filename, contents)
    new_post_file = File.new("#{@dir}/#{filename}", 'w')
    new_post_file.write(contents)
    new_post_file.close
  end

  def read_file(filename)
    File.open("#{@dir}/#{filename}", 'r') do |file|
      file.read()
    end
  end

  def twitter
    @twitter ||= Twitter::REST::Client.new do |config|
      config.consumer_key        = "RerlMuPVgYySMdqvuaBeSw"
      config.consumer_secret     = "Ccq3hS7fMplpjwCfvpVyPQXV6nPGGGonXSAdmi8ZIc"
      config.access_token        = app_config.vars['twitter']['access_token']
      config.access_token_secret = app_config.vars['twitter']['access_token_secret']
    end
  end
end