/**
  * @RDE_HEADER@
  * LtsColumnsSettingWidget Organise table columns
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Steve Kemayou, ESZS, 2025-03-19
  */


#include "lts_columns_setting.h"
#include "ui_lts_columns_setting.h"

#include<QDebug>
namespace LtsDataView
{
LtsColumnsSettingWidget::LtsColumnsSettingWidget(const QVector<ColumnOrganiserInfo> &columnInfoVec, QWidget *parent)
 : LtsWidgets::LtsFramelessDialog(parent)
 , m_ui(new Ui::LtsColumnsSetting)
{
  m_ui->setupUi(this);

  m_model = new ColumnOrganiserModel(this);
  m_model->setModelData(columnInfoVec);
  m_ui->tableView->setModel(m_model);

  for(const auto &ci : columnInfoVec)
  {
    if (ci.debugOnly){
      qDebug()<<">>>[LtsColumnsSettingWidgets] column to hide: id: "<<ci.logicalIndex;
      m_ui->tableView->hideRow(ci.logicalIndex);
    }
  }
  connect(m_ui->applyBtn,  &QPushButton::clicked, this, &LtsColumnsSettingWidget::onApplyClicked);
  connect(m_ui->cancelBtn, &QPushButton::clicked, this, &LtsColumnsSettingWidget::onAbortClicked);
  connect(m_ui->resetBtn,  &QPushButton::clicked, this, &LtsColumnsSettingWidget::onResetClicked);
}

LtsColumnsSettingWidget::~LtsColumnsSettingWidget()
{
  delete m_ui;
}

void LtsColumnsSettingWidget::onResetClicked()
{
  emit columnsResetted();
  accept();
}

/*!
 * \brief LtsColumnsSettingWidget::onApplyClicked
 * send columns settings
 */
void LtsColumnsSettingWidget::onApplyClicked()
{
  QVector<LtsDataView::ColumnOrganiserInfo> colInfoVec;
  const int rowCount = m_ui->tableView->model()->rowCount();
  colInfoVec.reserve(rowCount);
  for(int row = 0; row < rowCount; ++row)
  {
    const ColumnOrganiserInfo ci = m_ui->tableView->model()->data(m_model->index(row,0),Qt::UserRole).value<ColumnOrganiserInfo>();
    colInfoVec.push_back(ci);
  }
  emit columnVisibilityChanged(colInfoVec);
  accept();
}

/*!
 * \brief LtsColumnsSettingWidget::onAbortClicked
 */
void LtsColumnsSettingWidget::onAbortClicked()
{
  reject();
}

/// TABLE MODEL FOR COLUMN SETTINGS

/*!
 * \brief ColumnOrganiserModel::ColumnOrganiserModel
 * \param parent
 */
ColumnOrganiserModel::ColumnOrganiserModel(QObject *parent)
  :QAbstractTableModel(parent)
{
  beginResetModel();
  m_vecData.clear();
  endResetModel();
}

/*!
 * \brief ColumnOrganiserModel::setModelData
 * \param infos
 */
void ColumnOrganiserModel::setModelData(const QVector<ColumnOrganiserInfo> &infos)
{
  for(const auto &data : infos)
    insertRow(data);
}

/*!
 * \brief ColumnOrganiserModel::insertRow
 * \param info
 */
void ColumnOrganiserModel::insertRow(const ColumnOrganiserInfo &info)
{
  beginInsertRows(QModelIndex(), m_vecData.size(), m_vecData.size());
  m_vecData.append(info);
  endInsertRows();
}

/*!
 * \brief ColumnOrganiserModel::columnCount
 * \param parent
 * \return
 */
int ColumnOrganiserModel::columnCount(const QModelIndex &parent) const
{
  Q_UNUSED(parent)
  return 1; // list of Column header as rows with on column
}

/*!
 * \brief ColumnOrganiserModel::rowCount
 * \param parent
 * \return
 */
int ColumnOrganiserModel::rowCount(const QModelIndex &parent) const
{
  Q_UNUSED(parent)
  return m_vecData.count();
}

/*!
 * \brief ColumnOrganiserModel::data
 * \param index
 * \param role
 * \return
 */
QVariant ColumnOrganiserModel::data(const QModelIndex &index, int role) const
{
  if ((role != Qt::DisplayRole &&
       role != Qt::DecorationRole &&
       role != Qt::EditRole &&
       role != Qt::CheckStateRole &&
       role != Qt::UserRole) || !index.isValid() || index.row() >= m_vecData.size())
    return QVariant();

  const ColumnOrganiserInfo ci = m_vecData.at(index.row());

  if (role == Qt::CheckStateRole)
  {
    return ci.show;
  }

  if (role == Qt::DisplayRole)
    return ci.name;

  if (role == Qt::UserRole)
    return QVariant::fromValue(ci);

  return QVariant();
}

/*!
 * \brief ColumnOrganiserModel::setData
 * \param index
 * \param value
 * \param role
 * \return
 */
bool ColumnOrganiserModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
  Q_UNUSED(value)
  if (role != Qt::EditRole && role != Qt::CheckStateRole)
    return false;

  ColumnOrganiserInfo &ci = m_vecData[index.row()];

  if (role == Qt::CheckStateRole)
  {
    ci.show = !ci.show;
    return true;
  }

  switch (index.column())
  {
  case 0:
    return false;
  }

  emit dataChanged(index, index, {Qt::DisplayRole, Qt::EditRole});
  return true;
}

/*!
 * \brief ColumnOrganiserModel::flags
 * \param index
 * \return
 */
Qt::ItemFlags ColumnOrganiserModel::flags(const QModelIndex &index) const
{
  auto f = QAbstractTableModel::flags(index);
  if (!index.isValid())
    return f;

  if (index.column() == 0)
  {
    f.setFlag(Qt::ItemIsUserCheckable);
  }
  return f;
}

/*!
 * \brief ColumnOrganiserModel::headerData
 * \param section
 * \param orientation
 * \param role
 * \return
 */
QVariant ColumnOrganiserModel::headerData(int section, Qt::Orientation orientation, int role) const
{
  if (orientation == Qt::Horizontal
      && role == Qt::DisplayRole)
  {
    if (section == 0)
      return tr("Column Visibility");
  }
  return QAbstractTableModel::headerData(section, orientation, role);
}

}