module AcquiaToolbelt
  class CLI
    class Servers < AcquiaToolbelt::Thor
      desc 'list', 'List all servers.'
      def list
        if options[:subscription]
          subscription = options[:subscription]
        else
          subscription = AcquiaToolbelt::CLI::API.default_subscription
        end

        environment = options[:environment]
        # Determine if we want just a single environment, or all of them at
        # once.
        if environment
          environments = [environment]
        else
          environments = AcquiaToolbelt::CLI::API.environments
        end

        # Loop over each environment and get all the associated server data.
        environments.each do |env|
          ui.say
          ui.say "Environment: #{env}"

          server_env = AcquiaToolbelt::CLI::API.request "sites/#{subscription}/envs/#{env}/servers"
          server_env.each do |server|
            ui.say
            ui.say "> Host: #{server['fqdn']}"
            ui.say "> Region: #{server['ec2_region']}"
            ui.say "> Instance type: #{server['ami_type']}"
            ui.say "> Availability zone: #{server['ec2_availability_zone']}"

            # Show how many PHP processes this node can have. Note, this is only
            # available on the web servers.
            if server['services'] && server['services']['php_max_procs']
              ui.say "> PHP max processes: #{server['services']['php_max_procs']}"
            end

            if server['services'] && server['services']['status']
              ui.say "> Status: #{server['services']['status']}"
            end

            if server['services'] && server['services']['web']
              ui.say "> Web status: #{server['services']['web']['status']}"
            end

            # The state of varnish.
            if server['services'] && server['services']['varnish']
              ui.say "> Varnish status: #{server['services']['varnish']['status']}"
            end

            # Only load balancers will have the 'external IP' property.
            if server['services'] && server['services']['external_ip']
              ui.say "> External IP: #{server['services']['external_ip']}"
            end

            # If running a dedicated load balancer, there will be a ELB domain
            # associated with the load balancing tier.
            if server['services'] && server['services']['elb_domain_name']
              ui.say "> ELB hostname: #{server['services']['elb_domain_name']}"
            end
          end
        end
      end
    end
  end
end