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#include <grpc++/channel_arguments.h>
#include <grpc++/channel_interface.h>
#include <grpc++/client_context.h>
#include <grpc++/create_channel.h>
#include <grpc++/server.h>
#include <grpc++/server_builder.h>
#include <grpc++/server_context.h>
#include <grpc++/status.h>
#include <gtest/gtest.h>

#include "examples/tips/client.h"
#include "test/core/util/port.h"
#include "test/core/util/test_config.h"

using grpc::ChannelInterface;

namespace grpc {
namespace testing {
namespace {

const char kTopic[] = "test topic";

class PublishServiceImpl : public tech::pubsub::PublisherService::Service {
 public:
  Status CreateTopic(::grpc::ServerContext* context,
                     const ::tech::pubsub::Topic* request,
                     ::tech::pubsub::Topic* response) override {
    EXPECT_EQ(request->name(), kTopic);
    return Status::OK;
  }
};

class End2endTest : public ::testing::Test {
 protected:
  void SetUp() override {
    int port = grpc_pick_unused_port_or_die();
    server_address_ << "localhost:" << port;
    // Setup server
    ServerBuilder builder;
    builder.AddPort(server_address_.str());
    builder.RegisterService(service_.service());
    server_ = builder.BuildAndStart();

    channel_ = CreateChannel(server_address_.str(), ChannelArguments());
  }

  void TearDown() override { server_->Shutdown(); }

  std::unique_ptr<Server> server_;
  std::ostringstream server_address_;
  PublishServiceImpl service_;

  std::shared_ptr<ChannelInterface> channel_;
};

TEST_F(End2endTest, CreateTopic) {
  grpc::examples::tips::Client client(channel_);
  client.CreateTopic(kTopic);
}

}  // namespace
}  // namespace testing
}  // namespace grpc

int main(int argc, char** argv) {
  grpc_test_init(argc, argv);
  grpc_init();
  ::testing::InitGoogleTest(&argc, argv);
  gpr_log(GPR_INFO, "Start test ...");
  int result = RUN_ALL_TESTS();
  grpc_shutdown();
  return result;
}