#include "source/common/common/logger_delegates.h"

#include <cassert> // use direct system-assert to avoid cyclic dependency.

#include <cstdint>

#include <iostream>

#include <string>

#include "spdlog/spdlog.h"

namespace Envoy {

namespace Logger {

FileSinkDelegate::FileSinkDelegate(const std::string& log_path,

                                   AccessLog::AccessLogManager& log_manager,

                                   DelegatingLogSinkSharedPtr log_sink)

    : SinkDelegate(log_sink), log_file_(log_manager.createAccessLog(Filesystem::FilePathAndType{

                                  Filesystem::DestinationType::File, log_path})) {

  setDelegate();

}

FileSinkDelegate::~FileSinkDelegate() { restoreDelegate(); }

void FileSinkDelegate::log(absl::string_view msg, const spdlog::details::log_msg&) {

  // Log files have internal locking to ensure serial, non-interleaved

  // writes, so no additional locking needed here.

  log_file_->write(msg);

}

void FileSinkDelegate::flush() {

  // Log files have internal locking to ensure serial, non-interleaved

  // writes, so no additional locking needed here.

  log_file_->flush();

}

} // namespace Logger

} // namespace Envoy