require 'yaml'
module Roro
  class Configuration < Thor
    
    attr_reader :master, :app, :choices, :thor_actions
      
    def initialize(options={}) 
      @options = options || {}
      @master = YAML.load_file(File.dirname(__FILE__) + '/roro_configurator.yml')
      @master['services']['server_app']['vendors']['rails']['version'] = `ruby -v`.scan(/\d.\d/).first
      @choices = @master['services']['server_app']['vendors']['rails']['choices'] 
      @app = {} 
      @thor_actions = {}
      configure
    end
    
    no_commands do 

      def configure
        set_from_defaults 
        case 
        when @options['interactive'] && File.exist?('.roro_config.yml')
          set_from_roro_config
          set_from_interactive
        when File.exist?('.roro_config.yml') 
          set_from_roro_config
        when @options['interactive']
          set_from_interactive
        end
      end
      
      def set_from_defaults 
        svcs = @master['services']
        rails = svcs['server_app']['vendors']['rails']
        @app = {
          'main_app_name' =>        Dir.pwd.split('/').last,
          'database_host' =>        rails['env_vars']['DATABASE_HOST'],
          'ruby_version' =>         rails['version'],
          'frontend_service' =>     svcs['frontend']['name'],
          'webserver_service' =>    svcs['webserver']['default'],
          'database_service' =>     svcs['database']['name'],
          'database_vendor' =>      svcs['database']['vendor'],
        } 
        @choices.each { |key, value| @thor_actions[key] = value["default"] }
      end
      
      def set_from_roro_config
        yaml = YAML.load_file(Dir.pwd + '/.roro_config.yml')
        yaml.each { |key, value| @app[key] = value }
        if yaml['thor_actions'] 
          yaml['thor_actions'].each do |key, value| 
            @thor_actions[key] = value
          end 
        end 
      end
      
      def set_from_interactive 
        @choices.each do |key, v|
          prompt = ["\n\n" + v['question']]
          v['choices'].each { |k,v| prompt << "(#{k}) #{v.to_s}" }
          answer = ask((prompt.join("\n\n") + "\n\n"), 
          default: v['default'], 
          limited_to: v['choices'].keys)
          @thor_actions[key] = answer
        end
      end
    end
  end
end