class EY
  module Commands
    class Deploy
      app_env = fetch_app_environment(options[:app], options[:environment], options[:account])

      env_config    = config.environment_config(app_env.environment_name)
      deploy_config = EY::DeployConfig.new(options, env_config, repo, ui)

      deployment = app_env.new_deployment({
        :ref             => deploy_config.ref,
        :migrate         => deploy_config.migrate,
        :migrate_command => deploy_config.migrate_command,
        :extra_config    => deploy_config.extra_config,
      })

      runner = serverside_runner(app_env, deploy_config.verbose, options[:ignore_bad_master])

      out = EY::CLI::UI::Tee.new(ui.out, deployment.out)
      err = EY::CLI::UI::Tee.new(ui.err, deployment.err)

      ui.info  "Beginning deploy..."
      begin
        deployment.start
        ui.show_deployment(deployment)
        out << "Deploy initiated.\n"

        runner.deploy do |args|
          args.config  = deployment.config          if deployment.config
          if deployment.migrate
            args.migrate = deployment.migrate_command
          else
            args.migrate = false
          end
          args.ref     = deployment.resolved_ref
        end
        deployment.successful = runner.call(out, err)
      rescue Interrupt
        err << "Interrupted. Deployment halted.\n"
        ui.warn "Recording canceled deployment in Engine Yard Cloud..."
        ui.warn "WARNING: Interrupting again may result in a never-finished deployment in the deployment history on Engine Yard Cloud."
        raise
      rescue StandardError => e
        deployment.err << "Error encountered during deploy.\n#{e.class} #{e}\n"
        ui.print_exception(e)
        raise
      ensure
        deployment.finished

        if deployment.successful?
          ui.info "Successful deployment recorded on Engine Yard Cloud"
          ui.info "Deploy complete"
          ui.info "Now you can run `ey launch' to open the application in a browser."
        else
          ui.info "Failed deployment recorded on Engine Yard Cloud"
          raise EY::Error, "Deploy failed"
        end
      end
    end
  end
end