#include <Catch/fakeit.hpp>
#include <session.hpp>

using namespace fakeit;

const std::string method_not_allowed_json ="HTTP/1.1 405 Method Not Allowed\r\nContent-Type: application/json\r\nContent-Length: 42\r\n\r\n{\"code\":405,\"status\":\"Method Not Allowed\"}";
const std::string service_unavailable_json="HTTP/1.1 503 Service Unavailable\r\nContent-Type: application/json\r\nContent-Length: 43\r\n\r\n{\"code\":503,\"status\":\"Service Unavailable\"}";
const std::string internal_server_error_json="HTTP/1.1 500 Internal Server Error\r\nContent-Type: application/json\r\nContent-Length: 45\r\n\r\n{\"code\":500,\"status\":\"Internal Server Error\"}";
const std::string not_found               ="HTTP/1.1 404 Not Found\r\nContent-Type: application/json\r\nContent-Length: 36\r\n\r\n{\"code\":404,\"status\":\"Not Found\"}";
const std::string ok_nullptr_json         ="HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nContent-Length: 4\r\n\r\nnull";
const std::string bad_request             ="HTTP/1.1 400 Bad Request\r\nContent-Type: application/json\r\nContent-Length: 35\r\n\r\n{\"code\":400,\"status\":\"Bad Request\"}";

using namespace session;

SCENARIO("test of responses by session_manager on /v1/session"){
  session::resource sut;
  std::stringstream ss;
  GIVEN("the session is invalid"){
    WHEN("we receive a GET request"){
      sut.get();
      ss << sut;
      THEN("the response is a 503 Service Unavailable JSON object")
        REQUIRE(ss.str()==service_unavailable_json);
    }
    WHEN("we receive a PATCH request"){
      sut.patch();
      ss << sut;
      THEN("the response is a 503 Service Unavailable JSON object")
        REQUIRE(ss.str()==service_unavailable_json);
    }
    WHEN("we receive a POST request"){
      sut.post();
      ss << sut;
      THEN("the response is a 405 Method Not Allowed JSON object")
        REQUIRE(ss.str()==method_not_allowed_json);
    }
    WHEN("we receive a DELETE request"){
      sut.del();
      ss << sut;
      THEN("the response is a 405 Method Not Allowed JSON object")
        REQUIRE(ss.str()==method_not_allowed_json);
    }
    WHEN("we receive a PUT request"){
      sut.put();
      ss << sut;
      THEN("the response is a 405 Method Not Allowed JSON object")
        REQUIRE(ss.str()==method_not_allowed_json);
    }
  }
  GIVEN("the session is valid"){
    Mock<basic_manager> mock_session;
    When(Method(mock_session,basic_manager::is_valid)).AlwaysReturn(true);
    When(Method(mock_session,basic_manager::get_json)).AlwaysReturn(nullptr);
    auto session=std::shared_ptr<basic_manager>(&(mock_session.get()),[](...){});
    sut.set_session(session);

    WHEN("we receive a GET request"){
      sut.get();
      ss << sut;
      THEN("the response is a 200 OK JSON object ")
        REQUIRE(ss.str()==ok_nullptr_json);
    }

    WHEN("we receive a PATCH request with invalid data"){
      GIVEN("the JSON is invalid"){
        sut.patch(nullptr);
        ss << sut;
        THEN("the response is a 400 Bad Request JSON object")
          REQUIRE(ss.str()==bad_request);
      }
      GIVEN("the JSON is valid, but contains no data"){
        sut.patch({});
        ss << sut;
        THEN("the response is a 400 Bad Request JSON object")
          REQUIRE(ss.str()==bad_request);
      }
      GIVEN("the JSON is valid, but the port number is to low"){
        When(Method(mock_session,basic_manager::patch)).AlwaysReturn(false);
        sut.patch({{"listen_port",1}});
        ss << sut;
        THEN("the response is a 500 Internal Server Error JSON object")
          REQUIRE(ss.str()==internal_server_error_json);
      }
      GIVEN("the JSON is valid, but listen_port is a string"){
        sut.patch({{"listen_port","1"}});
        ss << sut;
        THEN("the response is a 400 Bad Request JSON object")
          REQUIRE(ss.str()==bad_request);
      }
      GIVEN("the JSON is valid, but is_paused is a string"){
        sut.patch({{"is_paused","1"}});
        ss << sut;
        THEN("the response is a 400 Bad Request JSON object")
          REQUIRE(ss.str()==bad_request);
      }
      WHEN("we receive a POST request"){
        sut.post();
        ss << sut;
        THEN("the response is a 405 Method Not Allowed JSON object")
          REQUIRE(ss.str()==method_not_allowed_json);
      }
      WHEN("we receive a DELETE request"){
        sut.del();
        ss << sut;
        THEN("the response is a 405 Method Not Allowed JSON object")
          REQUIRE(ss.str()==method_not_allowed_json);
      }
      WHEN("we receive a PUT request"){
        sut.put();
        ss << sut;
        THEN("the response is a 405 Method Not Allowed JSON object")
          REQUIRE(ss.str()==method_not_allowed_json);
      }
    }
  }
}