#include "summarywidget.h"

#include <QLabel>
#include <QProperty>
#include <QSpinBox>
#include <QVBoxLayout>

#include <model/modelsummary.h>

SummaryWidget::SummaryWidget(std::shared_ptr<ModelSummary> modelSummary, QWidget* parent)
    : QWidget{parent}
    , m_modelSummary(modelSummary) {
  /// Layouting
  QVBoxLayout* mainLayout   = new QVBoxLayout(this);
  QHBoxLayout* headerLayout = new QHBoxLayout();

  /// bindable (proof of concept) properties
  QLabel* rowCountLabel = new QLabel("Row count:");
  m_rowCountValueLabel  = new QLabel("");
  headerLayout->addWidget(rowCountLabel);
  headerLayout->addWidget(m_rowCountValueLabel);

  QHBoxLayout* nExpectedBiddingsLayout = new QHBoxLayout();
  QLabel* nExpectedBiddingsLabel       = new QLabel("Expected biddings:");
  m_nExpectedBiddingsValueLabel        = new QLabel("");
  nExpectedBiddingsLayout->addWidget(nExpectedBiddingsLabel);
  nExpectedBiddingsLayout->addWidget(m_nExpectedBiddingsValueLabel);

  /// monthly need
  QHBoxLayout* footerLayout  = new QHBoxLayout();
  QLabel* financialNeedLabel = new QLabel("monatlicher Finanzbedarf:");
  m_financialNeedBox         = new QSpinBox();
  m_financialNeedBox->setMaximum(50000);
  m_financialNeedBox->setValue(m_financialNeed);
  connect(m_financialNeedBox, &QSpinBox::valueChanged, this,
          &SummaryWidget::onFinancialNeedChanged);

  footerLayout->addWidget(financialNeedLabel);
  footerLayout->addWidget(m_financialNeedBox);
  footerLayout->addStretch(1);

  mainLayout->addLayout(headerLayout);
  mainLayout->addLayout(nExpectedBiddingsLayout);
  mainLayout->addLayout(footerLayout);

  setLayout(mainLayout);

  setupBindableProperties();
}

void SummaryWidget::onFinancialNeedChanged(int newFinancialNeed) {
  // NEXT implement reaction on financial need changes
  qCritical() << "Apply financial need changes!!!";
}

void SummaryWidget::setupBindableProperties() {
  // TODO figure out how to encapsulate each property binding into a dedicated function:
  //      "bindProperty(&bindable, &signal, &getter, widget)"
  /// nRows
  QProperty<int> nRows(-1);
  QObject::connect(m_modelSummary.get(), &ModelSummary::rowCountChanged, [&]() {
    m_rowCountValueLabel->setText(QString::number(m_modelSummary->rowCount()));
  });
  m_modelSummary->bindableRowCount().setBinding([&]() { return nRows.value(); });

  /// nExpectedBiddings
  QProperty<int> nExpectedBiddings(-1);
  QObject::connect(m_modelSummary.get(), &ModelSummary::nExpectedBiddingsChanged, [&]() {
    m_nExpectedBiddingsValueLabel->setText(QString::number(m_modelSummary->nExpectedBiddings()));
  });
  m_modelSummary->bindableNExpectedBiddings().setBinding(
      [&]() { return nExpectedBiddings.value(); });
}