#include "biddingroundstatuswidget.h"

#include <QChartView>
#include <QLabel>
#include <QPieSeries>
#include <QVBoxLayout>

BiddingRoundStatusWidget::BiddingRoundStatusWidget(const QString& title,
                                                   const int placedBiddings,
                                                   const int expectedBiddings,
                                                   const int financialNeed,
                                                   const int currentSum,
                                                   const qreal currentAverage,
                                                   QWidget* parent)
    : QWidget{parent}
    , m_title(title)
    , m_financialNeed(financialNeed)
    , m_currentSum(currentSum) {
  m_moneyDonutSeries = new QPieSeries();
  m_moneyDonutSeries->setHoleSize(0.35);
  const QString sumText = QString("Summe: %1 €").arg(currentSum);
  m_sumSlice            = m_moneyDonutSeries->append(sumText, currentSum);
  m_sumSlice->setLabelVisible();

  const int currentGap  = m_financialNeed - currentSum;
  const QString gapText = QString("offen: %1 €").arg(currentGap);
  m_gapSlice            = m_moneyDonutSeries->append(gapText, currentGap);
  m_gapSlice->setLabelVisible();

  m_chartView = new QChartView();
  m_chartView->setMinimumWidth(100);
  // m_chartView->setMaximumWidth(500);
  m_chartView->setRenderHint(QPainter::Antialiasing);
  m_chartView->chart()->setTitle(m_title);
  m_chartView->chart()->addSeries(m_moneyDonutSeries);
  m_chartView->chart()->legend()->setAlignment(Qt::AlignBottom);
  m_chartView->chart()->setTheme(QChart::ChartThemeBlueCerulean);
  m_chartView->chart()->legend()->setFont(QFont("Arial", 8));

  QVBoxLayout* layout = new QVBoxLayout();
  layout->addWidget(m_chartView, 5);
  QBoxLayout* progressLayout = createProgressLayout(placedBiddings, expectedBiddings);
  layout->addLayout(progressLayout);

  /// bidding average
  QHBoxLayout* averageLayout   = new QHBoxLayout();
  m_biddingAverageDescription  = new QLabel("Durchschnittsgebot: ");
  const QString currencyString = createCurrencyString(currentAverage);
  m_biddingAverageValue        = new QLabel(currencyString);
  averageLayout->addWidget(m_biddingAverageDescription);
  averageLayout->addWidget(m_biddingAverageValue);
  layout->addLayout(averageLayout);

  setLayout(layout);
}

void BiddingRoundStatusWidget::onExpectedBiddingsChanged(const int nExpected) {
  m_biddingRoundProgress->setExpectedBiddings(nExpected);
}

void BiddingRoundStatusWidget::onNPlacedBiddingsChanged(const int nPlaced) {
  m_biddingRoundProgress->setCurrentBiddings(nPlaced);
}

void BiddingRoundStatusWidget::onBiddingSumChanged(const int sum) {
  m_currentSum = sum;
  updateDonutChart();
}

void BiddingRoundStatusWidget::onBiddingAverageChanged(const qreal average) {
  if (m_biddingAverageValue) {
    m_biddingAverageValue->setText(createCurrencyString(average));
  }
}

void BiddingRoundStatusWidget::onFinancialNeedChanged(const int financialNeed) {
  m_financialNeed = financialNeed;
  updateDonutChart();
}

QBoxLayout* BiddingRoundStatusWidget::createProgressLayout(const int nPlaced, const int nExpected) {
  QVBoxLayout* progressLayout = new QVBoxLayout();

  m_biddingRoundProgress = new BiddingRoundProgressLayout(nPlaced, nExpected);
  progressLayout->addLayout(m_biddingRoundProgress);

  return progressLayout;
}

void BiddingRoundStatusWidget::updateDonutChart() {
  int currentGap;
  if (m_currentSum < m_financialNeed) {
    currentGap = m_financialNeed - m_currentSum;
  } else {
    currentGap = 0;
  }
  const QString sumText = QString("Summe: %1 €").arg(m_currentSum);
  m_sumSlice->setValue(m_currentSum);
  m_sumSlice->setLabel(sumText);

  const QString gapText = QString("offen: %1 €").arg(currentGap);
  m_gapSlice->setValue(currentGap);
  m_gapSlice->setLabel(gapText);
  const bool gapLabelVisible = currentGap != 0;
  m_gapSlice->setLabelVisible(gapLabelVisible);
}

QString BiddingRoundStatusWidget::createCurrencyString(const qreal value) const {
  return QString::number(value) + " €";
}