# Copyright (c) 2012, HouseTrip SA.
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require 'guignol/commands/base'
require 'guignol/instance'
require 'term/ansicolor'

module Guignol::Commands
  class List < Base
    def initialize(*argv)
      argv = ['.*'] if argv.empty?
      super(*argv)
    end

    def run_on_server(config)
      instance = Guignol::Instance.new(config)
      puts "%s:\t%s" % [instance.name, colorize(instance.state)]
    end

    def self.short_usage
      ["[regexp]", "List known instances (matching the regexp) and their status."]
    end

  private

    def colorize(state)
      case state
        when 'running'     then Term::ANSIColor.green(state)
        when 'stopped'     then Term::ANSIColor.yellow(state)
        when 'nonexistent' then Term::ANSIColor.red(state)
        else state
      end
    end
  end
end