text: #include "selfdrive/ui/qt/widgets/drive_stats.h"
  
  #include <QDebug>
  #include <QGridLayout>
  #include <QJsonObject>
  #include <QVBoxLayout>
  
  #include "selfdrive/common/params.h"
  #include "selfdrive/ui/qt/request_repeater.h"
  #include "selfdrive/ui/qt/util.h"
  
  const double MILE_TO_KM = 1.60934;
  
  static QLabel* newLabel(const QString& text, const QString &type) {
    QLabel* label = new QLabel(text);
    label->setProperty("type", type);
    return label;
  }
  
  DriveStats::DriveStats(QWidget* parent) : QFrame(parent) {
    metric_ = Params().getBool("IsMetric");
  
    QVBoxLayout* main_layout = new QVBoxLayout(this);
    main_layout->setContentsMargins(50, 50, 50, 60);
  
    auto add_stats_layouts = [=](const QString &title, StatsLabels& labels) {
      QGridLayout* grid_layout = new QGridLayout;
      grid_layout->setVerticalSpacing(10);
      grid_layout->setContentsMargins(0, 10, 0, 10);
  
      int row = 0;
      grid_layout->addWidget(newLabel(title, "title"), row++, 0, 1, 3);
      grid_layout->addItem(new QSpacerItem(0, 50), row++, 0, 1, 1);
  
      grid_layout->addWidget(labels.routes = newLabel("0", "number"), row, 0, Qt::AlignLeft);
      grid_layout->addWidget(labels.distance = newLabel("0", "number"), row, 1, Qt::AlignLeft);
      grid_layout->addWidget(labels.hours = newLabel("0", "number"), row, 2, Qt::AlignLeft);
  
      grid_layout->addWidget(newLabel("주행수", "unit"), row + 1, 0, Qt::AlignLeft);
      grid_layout->addWidget(labels.distance_unit = newLabel(getDistanceUnit(), "unit"), row + 1, 1, Qt::AlignLeft);
      grid_layout->addWidget(newLabel("시간 ", "unit"), row + 1, 2, Qt::AlignLeft);
  
      main_layout->addLayout(grid_layout);
    };
  
    add_stats_layouts("전체 주행", all_);
    main_layout->addStretch();
    add_stats_layouts("지난 주", week_);
  
    if (auto dongleId = getDongleId()) {
      QString url = CommaApi::BASE_URL + "/v1.1/devices/" + *dongleId + "/stats";
      RequestRepeater* repeater = new RequestRepeater(this, url, "ApiCache_DriveStats", 30);
      QObject::connect(repeater, &RequestRepeater::receivedResponse, this, &DriveStats::parseResponse);
    }
  
    setStyleSheet(R"(
      DriveStats {
        background-color: #333333;
        border-radius: 10px;
      }
  
      QLabel[type="title"] { font-size: 51px; font-weight: 500; }
      QLabel[type="number"] { font-size: 78px; font-weight: 500; }
      QLabel[type="unit"] { font-size: 51px; font-weight: 300; color: #A0A0A0; }
    )");
  }
  
  void DriveStats::updateStats() {
    auto update = [=](const QJsonObject& obj, StatsLabels& labels) {
      labels.routes->setText(QString::number((int)obj["routes"].toDouble()));
      labels.distance->setText(QString::number(int(obj["distance"].toDouble() * (metric_ ? MILE_TO_KM : 1))));
      labels.distance_unit->setText(getDistanceUnit());
      labels.hours->setText(QString::number((int)(obj["minutes"].toDouble() / 60)));
    };
  
    QJsonObject json = stats_.object();
    update(json["all"].toObject(), all_);
    update(json["week"].toObject(), week_);
  }
  
  void DriveStats::parseResponse(const QString& response) {
    QJsonDocument doc = QJsonDocument::fromJson(response.trimmed().toUtf8());
    if (doc.isNull()) {
      qDebug() << "JSON Parse failed on getting past drives statistics";
      return;
    }
    stats_ = doc;
    updateStats();
  }
  
  void DriveStats::showEvent(QShowEvent* event) {
    bool metric = Params().getBool("IsMetric");
    if (metric_ != metric) {
      metric_ = metric;
      updateStats();
    }
  }
  