class Travis::CLI::Monitor

def all?
  !pull? and !push?
end

def description
  case repos.size
  when 0 then session.config['host']
  when 1 then repos.first.slug
  else "#{repos.size} repositories"
  end
end

def display(entity, time)
  say [
    color(formatter.time(time), entity.color),
    color(entity.inspect_info, [entity.color, :bold]),
    color(entity.state, entity.color),
    color(entity.commit.subject, entity.color)
  ].join(' ')
  notification.notify(entity.repository.slug, [
    entity.class.name[/[^:]+$/],
    entity.number,
    "#{entity.state}:",
    entity.commit.subject
  ].join(' '))
end

def events
  events = %w[build:started build:finished]
  events << 'job:started' << 'job:finished' unless builds?
  events
end

def handle_event(event)
  entity = event.job          || event.build
  time   = entity.finished_at || entity.started_at
  display(entity, time) if monitor? entity
rescue Travis::Client::Error => e
  raise e if explode?
end

def initialize(*)
  @repos = []
  super
end

def monitor?(entity)
  return true if all?
  entity.pull_request? ? pull? : push?
end

def run
  listen(*repos) do |listener|
    listener.on_connect { say description, "Monitoring #{'builds for ' if builds?}%s:" }
    listener.on(*events) { |e| handle_event(e) }
  end
end

def setup
  super
  repos.map! { |r| repo(r) }
  repos.concat(user.repositories) if my_repos?
  setup_notification(true) unless notification
  debug "Using notifications: #{notification.class.name[/[^:]+$/]}"
end

def setup_notification(type = nil)
  refuse = false
  case type
  when false     then @notification = Tools::Notification.new(:dummy)
  when nil, true then @notification = Tools::Notification.new
  else
    refuse        = true
    @notification = Tools::Notification.new(type)
  end
rescue ArgumentError => e
  @notification = Tools::Notification.new(:dummy)
  error(e.message) if refuse
  warn(e.message)
end