/**********************************************************************************************
    Copyright (C) 2014 Oliver Eichler <oliver.eichler@gmx.de>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

**********************************************************************************************/

#include "dem/CDemPathSetup.h"

#include <QtWidgets>

#include "CMainWindow.h"
#include "dem/CDemDraw.h"
#include "dem/CDemList.h"
#include "svgticon/CSvgtIcon.h"

CDemPathSetup::CDemPathSetup(QStringList& paths) : QDialog(CMainWindow::getBestWidgetForParent()), paths(paths) {
  setupUi(this);
  CSvgtIcon::load(label_3, "://icons/Help.svgt");

  connect(toolAdd, &QToolButton::clicked, this, &CDemPathSetup::slotAddPath);
  connect(toolDelete, &QToolButton::clicked, this, &CDemPathSetup::slotDelPath);
  connect(listWidget, &QListWidget::itemSelectionChanged, this, &CDemPathSetup::slotItemSelectionChanged);

  for (const QString& path : paths) {
    QListWidgetItem* item = new QListWidgetItem(listWidget);
    item->setText(path);
  }

  labelHelp->setText(tr("Add or remove paths containing DEM data. There can be multiple files in a path but no "
                        "sub-path is parsed. Supported formats are: %1")
                         .arg(CDemDraw::getSupportedFormats().join(", ")));
}

CDemPathSetup::~CDemPathSetup() {}

void CDemPathSetup::slotItemSelectionChanged() {
  QList<QListWidgetItem*> items = listWidget->selectedItems();
  toolDelete->setEnabled(!items.isEmpty());
}

void CDemPathSetup::slotAddPath() {
  QString path = QFileDialog::getExistingDirectory(this, tr("Select DEM file path..."), QDir::homePath());
  if (!path.isEmpty()) {
    if (!paths.contains(path)) {
      QListWidgetItem* item = new QListWidgetItem(listWidget);
      item->setText(path);
    }
  }
}

void CDemPathSetup::slotDelPath() {
  QList<QListWidgetItem*> items = listWidget->selectedItems();
  qDeleteAll(items);
}

void CDemPathSetup::accept() {
  paths.clear();
  for (int i = 0; i < listWidget->count(); i++) {
    QListWidgetItem* item = listWidget->item(i);
    paths << item->text();
  }

  QDialog::accept();
}
