defmodule Client do
  #generate 4 function get/1, get!/1 post/1 post!/1 function
  use Maxwell.Builder, ~w(get post)a

  middleware Maxwell.Middleware.BaseUrl, "http://httpbin.org"
  middleware Maxwell.Middleware.Headers, %{"Content-Type" => "application/json"}
  middleware Maxwell.Middleware.Opts, [connect_timeout: 10000, recv_timeout: 20000]
  middleware Maxwell.Middleware.Json
  middleware Maxwell.Middleware.Logger

  adapter Maxwell.Adapter.Hackney

  @doc """
  Simple get request
  get origin ip
  """
  def get_ip() do
    new
    |> put_path("/ip")
    |> get!
    |> get_resp_body("origin")
  end

  @doc """
  Post whole file once
  ###Example
     Client.post_file_once("./mix.exs")
  """
  def post_file_once(filepath) do
    new
    |> put_path("/post")
    |> put_req_body({:file, filepath})
    |> post!
    |> get_resp_body("data")
  end

  @doc """
  Post whole file by chunked
  ###Example
     Client.post_file_chunked("./mix.exs")
  """
  def post_file_chunked(filepath) do
    new
    |> put_path("/post")
    |> put_req_header("transfer_encoding", "chunked")
    |> put_req_body({:file, filepath})
    |> post!
    |> get_resp_body("data")
  end

  @doc """
  Post by stream
  ###Example
     ["1", "2", "3"] |> Stream.map(fn(x) -> List.duplicate(x, 2) end) |> Client.post_stream
  """
  def post_stream(stream) do
    new
    |> put_path("/post")
    |> put_req_body(stream)
    |> post!
    |> get_resp_body("data")
  end

  @doc """
  Post multipart form
  ###Example
    Client.post_multipart_form({:multipart, [{:file, "./mix.exs"}]})
  """
  def post_multipart_form(multipart) do
    new
    |> put_path("/post")
    |> put_req_body(multipart)
    |> post!
    |> get_resp_body("data")
  end
end