module COMAP

# File lib/comap.rb, line 32
def add_docker_host_option(opts)
  desc = "Docker Engine API Host (default: #{@config[:docker_host]})"
  help = '--docker_host HOST'
  opts.on('-H', help, desc) { |v| @config[:docker_host] = v }
end

# File lib/comap.rb, line 39
def add_docker_port_option(opts)
  desc = "Docker Engine API Port (default: #{@config[:docker_port]})"
  help = '--docker_port PORT'
  opts.on('-p', help, desc) { |v| @config[:docker_port] = v }
end

# File lib/comap.rb, line 45
def add_docker_ssl_option(opts)
  desc = 'Docker Engine API SSL (default: none)'
  help = '--docker_ssl k1=v1,k2=v2'
  opts.on('-s', help, desc) { |v| @config[:docker_ssl] = v }
end

# File lib/comap.rb, line 57
def add_metrics_path_option(opts)
  desc = "Metrics path (default: #{@config[:metrics_path]})"
  help = '--metrics_path METRICS_PATH'
  opts.on('-m', help, desc) { |v| @config[:metrics_path] = v }
end

# File lib/comap.rb, line 51
def add_network_option(opts)
  desc = 'Docker swarm service network (default: none)'
  help = '--docker_network NETWORK'
  opts.on('-n', help, desc) { |v| @config[:network] = v }
end

# File lib/comap.rb, line 63
def add_options(opts)
  opts.banner =
    "Usage: #{File.basename($PROGRAM_NAME)} [options] swarm_service"
  add_docker_host_option(opts)
  add_docker_port_option(opts)
  add_docker_ssl_option(opts)
  add_network_option(opts)
  add_metrics_path_option(opts)
end

# File lib/comap.rb, line 84
def app
  config = @config
  Rack::Builder.new do
    use Rack::Deflater
    run COMAP::App.new(config)
  end
end

# File lib/comap.rb, line 73
def parse_opts
  OptionParser.new do |opts|
    add_options(opts)
    opts.on('-h', '--help', 'Display this screen') do
      puts opts
      exit
    end
    opts.parse!
  end
end

# File lib/comap.rb, line 92
def start(args = ARGV)
  @config = {
    docker_host: 'http://127.0.0.1',
    docker_port: 2375,
    docker_ssl: '',
    metrics_path: '',
    network: '',
    services: args
  }
  parse_opts
  Rack::Server.start(app: app, Host: '0.0.0.0', Port: 9397)
end