$:.unshift File.expand_path('../vendor/cli', __FILE__)

require 'skylight'
require 'thor'
require 'yaml'
require 'highline'
require 'active_support/inflector'

module Skylight
  class CLI < Thor

    desc "setup", "Sets up a new app"
    def setup
      if File.exist?(config_path)
        say "Your app is already on Skylight. http://www.skylight.io", :green
        return
      end

      api.authentication = load_credentials

      unless res = api.create_app(app_name)
        say "Could not create the application", :red
        return
      end

      config[:application]    = res.get('app.id')
      config[:authentication] = res.get('app.token')
      config.write(config_path)

      say "Congratulations. Your application is on Skylight! http://www.skylight.io", :green
    rescue Interrupt
    end

  private

    def app_name
      @app_name ||=
        begin
          if File.exist?("config/application.rb")
            require "./config/application"
            Rails.application.class.name.split("::").first.underscore.humanize
          else
            File.basename(File.expand_path('.')).humanize
          end
        end
    end

    def load_credentials
      load_credentials_from_file || login
    end

    def login
      10.times do
        email    = highline.ask("Email: ")
        password = highline.ask("Password: ") { |q| q.echo = "*" }

        if token = api.login(email, password)
          # Write the token
          FileUtils.mkdir_p(File.dirname(credentials_path))
          File.open(credentials_path, 'w') do |f|
            f.puts YAML.dump('token' => token)
          end

          return token
        end

        say "Sorry. That email and password was invalid. Please try again", :red
        puts
      end

      say "Could not login", :red
      return
    end

    def load_credentials_from_file
      return unless File.exist?(credentials_path)
      return unless yaml = YAML.load_file(credentials_path)
      yaml['token']
    end

    def config_path
      File.expand_path('config/skylight.yml')
    end

    def credentials_path
      return nil unless ENV['HOME']
      File.expand_path(".skylight", ENV['HOME'])
    end

    def api
      @api ||= Api.new(config)
    end

    def highline
      @highline ||= HighLine.new
    end

    def config
      # Calling .load checks ENV variables
      @config ||= Config.load
    end

  end
end