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

using namespace std;

TEST_CASE("Check http status"){
  auto out=http::http_code(http::ok);
  REQUIRE(out.first == 200);
  REQUIRE(out.second == "OK");
  // TODO test all
}

SCENARIO("http response"){
  auto response=http::response();
  std::stringstream ss;
  GIVEN("we stream our response without setting given any data"){
    ss << response;
    THEN("the response will default to 200")
      REQUIRE(ss.str()=="HTTP/1.1 200 OK\r\nContent-Length: 6\r\n\r\n200 OK"s);  
  }
  GIVEN("we stream our data with the response status set to 404"){
    response.set_status(http::not_found);
    ss << response;
    THEN("the default 404 response will be sent instead"){
      REQUIRE(ss.str()=="HTTP/1.1 404 Not Found\r\nContent-Length: 13\r\n\r\n404 Not Found"s);
    }
  }
  GIVEN("we stream our response with the status set to 204 No Content"){
    response.set_status(http::no_content);
    ss << response;
    THEN("the response has no content header set")
      REQUIRE(ss.str()=="HTTP/1.1 204 No Content\r\n\r\n"s);
  }
  GIVEN("we stream our response with the body set"){
    response.set_body("Easter eggs, everywhere! <a href=\"http://stream1.gifsoup.com/view4/4086928/x-x-everywhere-o.gif\">ye</a>");
    ss << response;
    THEN("our response contains the appropriate headers")
      REQUIRE(ss.str()=="HTTP/1.1 200 OK\r\nContent-Length: 103\r\n\r\nEaster eggs, everywhere! <a href=\"http://stream1.gifsoup.com/view4/4086928/x-x-everywhere-o.gif\">ye</a>"s);
  }
}

SCENARIO("Stream http responses with a json response"){
  auto response=http::json_response();
  std::stringstream ss;
  GIVEN("we stream our response without setting any options"){
    ss << response;
    THEN("our response is valid json and the response code is 200")
      REQUIRE(ss.str()=="HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nContent-Length: 26\r\n\r\n{\"code\":200,\"status\":\"OK\"}"s);
  }
  GIVEN("we set the response code to 404 and stream our response"){
    response.set_status(http::not_found);
    ss << response;
    THEN("our response is valid json and the resoinse code is 404")
      REQUIRE(ss.str()=="HTTP/1.1 404 Not Found\r\nContent-Type: application/json\r\nContent-Length: 33\r\n\r\n{\"code\":404,\"status\":\"Not Found\"}"s);
  }
  GIVEN("we stream our response with the status set to 204 No Content"){
    response.set_status(http::no_content);
    ss << response;
    THEN("the response has no content header set")
      REQUIRE(ss.str()=="HTTP/1.1 204 No Content\r\nContent-Type: application/json\r\n\r\n"s);
  }
  GIVEN("we stream our response with the body set"){
    response.set_body(nlohmann::json::object());
    ss << response;
    THEN("our response contains the appropriate headers")
      REQUIRE(ss.str()=="HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nContent-Length: 2\r\n\r\n{}"s);
  }
}

/*
TEST(http_response_handler, header){
  ServerTest s;
  auto req=s.create_request("GET /v1/session/torrents HTTP/1.1\r\nHost: localhost:8080\r\nFoo: bar\r\nFoo: bars\r\nContent-Type: application/json\r\n\r\n");
  std::shared_ptr<ServerTest::Response> resp(new ServerTest::Response(nullptr));
  http::request_handler out(req,resp);
  ASSERT_TRUE(out.header_set("Content-Type"));
  ASSERT_EQ(out.find_last_header_value("Content-Type"),"application/json");
  ASSERT_EQ(out.find_last_header_value("Host"),"localhost:8080");
  ASSERT_EQ(out.find_last_header_value("Foo"),"bars");
  ASSERT_NE(out.find_last_header_value("Foo"), "bar");
  ASSERT_FALSE(out.header_set("Content-Length"));
  ASSERT_TRUE(out.header_equals("Content-Type","application/json"));
}

TEST(http_response_handler, json_response){
  ServerTest s;
  auto req=s.create_request("GET /v1/session/torrents HTTP/1.1\r\nHost: localhost:8080\r\nContent-Type: application/json\r\n\r\n");
  std::shared_ptr<ServerTest::Response> resp(new ServerTest::Response(nullptr));
  http::request_handler out(req,resp);
  out.respond(nlohmann::json("{}"));
  std::stringstream ss;
  ss << resp->rdbuf();
  std::string string_response(ss.str());
  ASSERT_EQ(string_response,"HTTP/1.1 200 OK\r\nContent-Length: 4\r\nContent-Type: application/json\r\n\r\n\"{}\"");
}

TEST(http_response_handler, string_response){
  ServerTest s;
  auto req=s.create_request("GET /v1/session/torrents HTTP/1.1\r\nHost: localhost:8080\r\nContent-Type: application/json\r\n\r\n");
  std::shared_ptr<ServerTest::Response> resp(new ServerTest::Response(nullptr));
  http::request_handler out(req,resp);
  out.respond(std::string("{}"));
  std::stringstream ss;
  ss << resp->rdbuf();
  std::string string_response(ss.str());
  ASSERT_EQ(string_response,"HTTP/1.1 200 OK\r\nContent-Length: 2\r\n\r\n{}");
}

TEST(http_response_handler, empty_string){
  ServerTest s;
  auto req=s.create_request("GET /v1/session/torrents HTTP/1.1\r\nHost: localhost:8080\r\nContent-Type: application/json\r\n\r\n");
  std::shared_ptr<ServerTest::Response> resp(new ServerTest::Response(nullptr));
  http::request_handler out(req,resp);
  out.respond(std::string(""));
  std::stringstream ss;
  ss << resp->rdbuf();
  std::string string_response(ss.str());
  ASSERT_EQ(string_response,"HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n");
}
*/