class Excon::Response

def self.parse(socket, params = {}, &block)
  if params[:block]
    print "  \e[33m[WARN] params[:block] is deprecated, please pass the block to the request\e[0m"
    block = params[:block]
  end
  response = new
  response.status = socket.readline[9..11].to_i
  while true
    data = socket.readline.chop!
    unless data.empty?
      key, value = data.split(': ')
      response.headers[key] = value
    else
      break
    end
  end
  unless params[:method] == 'HEAD'
    if !block || (params[:expects] && ![*params[:expects]].include?(response.status))
      response.body = ''
      block = lambda { |chunk| response.body << chunk }
    end
    if response.headers['Connection'] == 'close'
      block.call(socket.read)
    elsif response.headers['Content-Length']
      remaining = response.headers['Content-Length'].to_i
      while remaining > 0
        block.call(socket.read([CHUNK_SIZE, remaining].min))
        remaining -= CHUNK_SIZE
      end
    elsif response.headers['Transfer-Encoding'] == 'chunked'
      while true
        chunk_size = socket.readline.chop!.to_i(16)
        chunk = socket.read(chunk_size + 2).chop! # 2 == "/r/n".length
        if chunk_size > 0
          block.call(chunk)
        else
          break
        end
      end
    end
  end
  response
end

def initialize(attributes = {})
  @body    = attributes[:body] || ''
  @headers = attributes[:headers] || {}
  @status  = attributes[:status]
end