/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <string>
#include <unordered_map>

#include <folly/Traits.h>
#include <folly/portability/GTest.h>

#include <thrift/lib/cpp2/protocol/BinaryProtocol.h>
#include <thrift/test/gen-cpp2/OpaqueTest_types.h>

using namespace apache::thrift::test;

template <class T>
T getTestStruct() {
  T a;
  *a.d1_ref() = OpaqueDouble1{123.0};
  *a.d2_ref() = OpaqueDouble2{234.0};
  for (int i = 1; i <= 5; ++i) {
    a.dmap_ref()[i] = OpaqueDouble1{9000.0 + i};
  }
  for (int i = 1; i <= 5; ++i) {
    a.ids_ref()->push_back(NonConvertibleId{111 * i});
  }
  return a;
}

OpaqueTestStruct getTestStruct() {
  return getTestStruct<OpaqueTestStruct>();
}

template <typename T>
void checkTypedefs() {
  EXPECT_FALSE((std::is_same<double, decltype(*T().d1_ref())>::value));
  EXPECT_FALSE((std::is_same<double, decltype(*T().d2_ref())>::value));
  EXPECT_FALSE(
      (std::is_same<double, decltype(T().dmap_ref()->begin()->second)>::value));
  EXPECT_FALSE((std::is_same<int64_t, decltype(T().ids_ref()[0])>::value));
  EXPECT_TRUE((std::is_same<
               folly::remove_cvref_t<decltype(*T().d1_ref())>,
               decltype(T().dmap_ref()->begin()->second)>::value));
}

TEST(Opaque, Typedefs) {
  checkTypedefs<OpaqueTestStruct>();
}

TEST(Opaque, Serialize) {
  using namespace apache::thrift;

  OpaqueTestStruct a = getTestStruct();
  BinaryProtocolWriter protWriter;
  size_t bufSize = a.serializedSize(&protWriter);
  folly::IOBufQueue queue;
  protWriter.setOutput(&queue, bufSize);
  a.write(&protWriter);

  auto buf = queue.move();
  BinaryProtocolReader protReader;
  protReader.setInput(buf.get());
  OpaqueTestStruct a2;
  a2.read(&protReader);
  EXPECT_EQ(getTestStruct(), a2);
}