class Travis::CLI::Report

def cli_info
  yield 'Version',            Travis::VERSION
  yield 'Plugins',            defined?(TRAVIS_PLUGINS) ? TRAVIS_PLUGINS : []
  yield 'Auto-Completion',    Tools::Completion.completion_installed?
  yield 'Last Version Check', last_check['at'] ? Time.at(last_check['at']) : 'never'
end

def display(title, method, *args)
  say color(title, %i[bold underline])
  send(method, *args) { |*a| list(*a) }
  puts
end

def display_error
  return unless (error = load_file('error.log'))
  display('Last Exception', :say, color(error, :info))
end

def endpoint_name(url, prefix = '')
  case url
  when Travis::Client::COM_URI  then "#{prefix}com"
  when /api-staging\.travis-ci/ then endpoint_name(url.sub('api-staging.', 'api.'), 'staging-')
  else
    key, = config['enterprise'].detect { |_k, v| v.start_with? url } if config['enterprise'].respond_to?(:detect)
    key ? 'enterprise %p' % key : '???'
  end
end

def endpoints
  config['endpoints'].each do |endpoint, info|
    info = [
      info['access_token']         ? 'access token' : nil,
      info['insecure']             ? 'insecure'     : nil,
      default_endpoint == endpoint ? 'default'      : nil,
      endpoint == api_endpoint     ? 'current'      : nil
    ].compact
    yield endpoint_name(endpoint), endpoint, info.join(', ')
  end
end

def general
  yield 'Ruby',               Tools::System.ruby
  yield 'Operating System',   Tools::System.os
  yield 'RubyGems',           Tools::System.rubygems
end

def known_repos
  config['repos'].each do |key, info|
    yield key, info['endpoint']
  end
end

def list(key, value, additional = nil)
  value = case value
          when Array then value.empty? ? 'none' : value.map(&:inspect).join(', ')
          when true  then 'yes'
          when false then 'no'
          when nil   then 'unknown'
          else value.to_s
          end
  additional &&= " (#{additional})"
  say "#{key}:".ljust(known_repos? ? 50 : 25) << ' ' << color(value.to_s, :bold) << additional.to_s
end

def run
  display('System',    :general)
  display('CLI',       :cli_info)
  display('Session',   :session_info)
  display('Endpoints', :endpoints)
  display('Known Repositories', :known_repos) if known_repos?
  display_error
  say "For issues with the command line tool, please visit #{color(
    'https://github.com/travis-ci/travis.rb/issues', :underline
  )}."
  say "For Travis CI in general, go to #{color('https://github.com/travis-ci/travis-ci/issues',
                                               :underline)} or email #{color('support@travis-ci.com',
                                                                             :underline)}."
end

def session_info
  yield 'API Endpoint',       api_endpoint
  yield 'Logged In',          user_info
  yield 'Verify SSL',         !insecure
  yield 'Enterprise',         enterprise?
end

def user_info
  access_token ? 'as %p' % user.login : 'no'
rescue Travis::Client::Error => e
  e.message
end