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#include "test/cpp/qps/report.h"

#include <grpc/support/log.h>
#include "test/cpp/qps/stats.h"

namespace grpc {
namespace testing {

void CompositeReporter::add(std::unique_ptr<Reporter> reporter) {
  reporters_.emplace_back(std::move(reporter));
}

void CompositeReporter::ReportQPS(const ScenarioResult& result) {
  for (size_t i = 0; i < reporters_.size(); ++i) {
    reporters_[i]->ReportQPS(result);
  }
}

void CompositeReporter::ReportQPSPerCore(const ScenarioResult& result) {
  for (size_t i = 0; i < reporters_.size(); ++i) {
    reporters_[i]->ReportQPSPerCore(result);
  }
}

void CompositeReporter::ReportLatency(const ScenarioResult& result) {
  for (size_t i = 0; i < reporters_.size(); ++i) {
    reporters_[i]->ReportLatency(result);
  }
}

void CompositeReporter::ReportTimes(const ScenarioResult& result) {
  for (size_t i = 0; i < reporters_.size(); ++i) {
    reporters_[i]->ReportTimes(result);
  }
}

void GprLogReporter::ReportQPS(const ScenarioResult& result) {
  gpr_log(GPR_INFO, "QPS: %.1f",
          result.latencies.Count() /
              average(result.client_resources,
                      [](ResourceUsage u) { return u.wall_time; }));
}

void GprLogReporter::ReportQPSPerCore(const ScenarioResult& result) {
  auto qps = result.latencies.Count() /
             average(result.client_resources,
                     [](ResourceUsage u) { return u.wall_time; });

  gpr_log(GPR_INFO, "QPS: %.1f (%.1f/server core)", qps,
          qps / result.server_config.threads());
}

void GprLogReporter::ReportLatency(const ScenarioResult& result) {
  gpr_log(GPR_INFO,
          "Latencies (50/90/95/99/99.9%%-ile): %.1f/%.1f/%.1f/%.1f/%.1f us",
          result.latencies.Percentile(50) / 1000,
          result.latencies.Percentile(90) / 1000,
          result.latencies.Percentile(95) / 1000,
          result.latencies.Percentile(99) / 1000,
          result.latencies.Percentile(99.9) / 1000);
}

void GprLogReporter::ReportTimes(const ScenarioResult& result) {
  gpr_log(GPR_INFO, "Server system time: %.2f%%",
          100.0 * sum(result.server_resources,
                      [](ResourceUsage u) { return u.system_time; }) /
              sum(result.server_resources,
                  [](ResourceUsage u) { return u.wall_time; }));
  gpr_log(GPR_INFO, "Server user time:   %.2f%%",
          100.0 * sum(result.server_resources,
                      [](ResourceUsage u) { return u.user_time; }) /
              sum(result.server_resources,
                  [](ResourceUsage u) { return u.wall_time; }));
  gpr_log(GPR_INFO, "Client system time: %.2f%%",
          100.0 * sum(result.client_resources,
                      [](ResourceUsage u) { return u.system_time; }) /
              sum(result.client_resources,
                  [](ResourceUsage u) { return u.wall_time; }));
  gpr_log(GPR_INFO, "Client user time:   %.2f%%",
          100.0 * sum(result.client_resources,
                      [](ResourceUsage u) { return u.user_time; }) /
              sum(result.client_resources,
                  [](ResourceUsage u) { return u.wall_time; }));
}

void PerfDbReporter::ReportQPS(const ScenarioResult& result) {
  auto qps = result.latencies.Count() /
             average(result.client_resources,
                     [](ResourceUsage u) { return u.wall_time; });

  perf_db_client_.setQps(qps);
  perf_db_client_.setConfigs(result.client_config, result.server_config);
}

void PerfDbReporter::ReportQPSPerCore(const ScenarioResult& result) {
  auto qps = result.latencies.Count() /
             average(result.client_resources,
                     [](ResourceUsage u) { return u.wall_time; });

  auto qpsPerCore = qps / result.server_config.threads();

  perf_db_client_.setQps(qps);
  perf_db_client_.setQpsPerCore(qpsPerCore);
  perf_db_client_.setConfigs(result.client_config, result.server_config);
}

void PerfDbReporter::ReportLatency(const ScenarioResult& result) {
  perf_db_client_.setLatencies(result.latencies.Percentile(50) / 1000,
                             result.latencies.Percentile(90) / 1000,
                             result.latencies.Percentile(95) / 1000,
                             result.latencies.Percentile(99) / 1000,
                             result.latencies.Percentile(99.9) / 1000);
  perf_db_client_.setConfigs(result.client_config, result.server_config);
}

void PerfDbReporter::ReportTimes(const ScenarioResult& result) {
  double server_system_time =
      100.0 * sum(result.server_resources,
                  [](ResourceUsage u) { return u.system_time; }) /
      sum(result.server_resources, [](ResourceUsage u) { return u.wall_time; });
  double server_user_time =
      100.0 * sum(result.server_resources,
                  [](ResourceUsage u) { return u.user_time; }) /
      sum(result.server_resources, [](ResourceUsage u) { return u.wall_time; });
  double client_system_time =
      100.0 * sum(result.client_resources,
                  [](ResourceUsage u) { return u.system_time; }) /
      sum(result.client_resources, [](ResourceUsage u) { return u.wall_time; });
  double client_user_time =
      100.0 * sum(result.client_resources,
                  [](ResourceUsage u) { return u.user_time; }) /
      sum(result.client_resources, [](ResourceUsage u) { return u.wall_time; });

  perf_db_client_.setTimes(server_system_time, server_user_time, client_system_time,
                         client_user_time);
  perf_db_client_.setConfigs(result.client_config, result.server_config);
}

void PerfDbReporter::SendData() {
  // send data to performance database
  bool data_state =
      perf_db_client_.sendData(access_token_, test_name_, sys_info_, tag_);

  // check state of data sending
  if (data_state) {
    gpr_log(GPR_INFO, "Data sent to performance database successfully");
  } else {
    gpr_log(GPR_INFO, "Data could not be sent to performance database");
  }
}

}  // namespace testing
}  // namespace grpc