defmodule HTTParrot.PHandlerTest do
  use ExUnit.Case
  import :meck
  import HTTParrot.PHandler

  setup do
    new HTTParrot.GeneralRequestInfo
    new JSEX
    new :cowboy_req
  end

  teardown do
    unload HTTParrot.GeneralRequestInfo
    unload JSEX
    unload :cowboy_req
  end

  Enum.each [{"/post", "POST"},
             {"/patch", "PATCH"},
             {"/put", "PUT"}], fn {path, verb} ->
    test "allowed_methods return verb related to #{path}" do
      expect(:cowboy_req, :path, 1, {unquote(path), :req2})

      assert allowed_methods(:req1, :state) == {[unquote(verb)], :req2, :state}

      assert validate :cowboy_req
    end
  end

  test "returns json with general info and P[OST, ATCH, UT] form data" do
    expect(:cowboy_req, :body_qs, 1, {:ok, :body_qs, :req2})
    expect(:cowboy_req, :set_resp_body, [{[:response, :req3], :req4}])
    expect(HTTParrot.GeneralRequestInfo, :retrieve, 1, {[:info], :req3})
    expect(JSEX, :encode!, [{[[:info, {:form, :body_qs}, {:data, ""}, {:json, nil}]], :response}])

    assert post_form(:req1, :state) == {true, :req4, nil}

    assert validate HTTParrot.GeneralRequestInfo
  end

  test "returns json with general info and P[OST, ATCH, UT] JSON body data" do
    expect(:cowboy_req, :body, 1, {:ok, :body, :req2})
    expect(:cowboy_req, :set_resp_body, [{[:response, :req3], :req4}])
    expect(HTTParrot.GeneralRequestInfo, :retrieve, 1, {[:info], :req3})
    expect(JSEX, :is_json?, 1, true)
    expect(JSEX, :decode!, 1, :decoded_json)
    expect(JSEX, :encode!, [{[[:info, {:form, [{}]}, {:data, :body}, {:json, :decoded_json}]], :response}])

    assert post_json(:req1, :state) == {true, :req4, nil}

    assert validate HTTParrot.GeneralRequestInfo
  end

  test "returns json with general info and P[OST, ATCH, UT] non-JSON body data" do
    expect(:cowboy_req, :body, 1, {:ok, :body, :req2})
    expect(:cowboy_req, :set_resp_body, [{[:response, :req3], :req4}])
    expect(HTTParrot.GeneralRequestInfo, :retrieve, 1, {[:info], :req3})
    expect(JSEX, :is_json?, 1, false)
    expect(JSEX, :encode!, [{[[:info, {:form, [{}]}, {:data, :body}, {:json, nil}]], :response}])

    assert post_json(:req1, :state) == {true, :req4, nil}

    assert validate HTTParrot.GeneralRequestInfo
  end
end