//
// Copyright (C) 2022 The Android Open Source Project
//
// 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 "metrics_receiver.h"

#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ipc.h>
#include <sys/msg.h>

#include <fstream>
#include <iostream>
#include <memory>

#include <gflags/gflags.h>
#include "absl/log/log.h"

#include "cuttlefish/common/libs/utils/tee_logging.h"
#include "cuttlefish/host/libs/config/cuttlefish_config.h"
#include "cuttlefish/host/libs/metrics/metrics_configs.h"
#include "cuttlefish/host/libs/metrics/metrics_defs.h"
#include "cuttlefish/host/libs/msg_queue/msg_queue.h"

using cuttlefish::MetricsExitCodes;

namespace cuttlefish {

void SendHelper(const std::string &queue_name, const std::string &message) {
  auto msg_queue = SysVMessageQueue::Create(queue_name, false);
  if (msg_queue == NULL) {
    LOG(FATAL) << "Create: failed to create" << queue_name;
  }

  struct msg_buffer msg;
  msg.mesg_type = 1;
  strncpy(msg.mesg_text, message.c_str(), message.size());
  int rc = msg_queue->Send(&msg, message.length() + 1, true);
  if (rc == -1) {
    LOG(FATAL) << "Send: failed to send message to msg_queue";
  }
}

void MetricsReceiver::LogMetricsVMStart() {
  SendHelper(kCfMetricsQueueName, "VMStart");
}

void MetricsReceiver::LogMetricsVMStop() {
  SendHelper(kCfMetricsQueueName, "VMStop");
}

void MetricsReceiver::LogMetricsDeviceBoot() {
  SendHelper(kCfMetricsQueueName, "DeviceBoot");
}

void MetricsReceiver::LogMetricsLockScreen() {
  SendHelper(kCfMetricsQueueName, "LockScreen");
}

}  // namespace cuttlefish
