// Copyright 2023 PingCAP, Inc.
//
// 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.

#pragma once

#include <Server/FlashGrpcServerHolder.h>
#include <Server/IServer.h>
#include <Server/ServerInfo.h>
#include <daemon/BaseDaemon.h>

/** Server provides the following interfaces:
  * 1. TCP - interface for native clickhouse-client and for server to server internal communications.
  *    More rich and efficient, but less compatible
  *     - data is transferred by columns;
  *     - data is transferred compressed;
  *    Allows to get more information in response.
  */


namespace DB
{
class Server
    : public BaseDaemon
    , public IServer
{
public:
    using ServerApplication::run;

    Poco::Util::LayeredConfiguration & config() const override { return BaseDaemon::config(); }

    Poco::Logger & logger() const override { return BaseDaemon::logger(); }

    Context & context() const override { return *global_context; }

    bool isCancelled() const override { return BaseDaemon::isCancelled(); }

    void defineOptions(Poco::Util::OptionSet & _options) override;

protected:
    int run() override;

    void initialize(Application & self) override;

    void uninitialize() override;

    int main(const std::vector<std::string> & args) override;

    std::string getDefaultCorePath() const override;

private:
    std::unique_ptr<Context> global_context;

    ServerInfo server_info;
};

} // namespace DB