#include "./dirview.h"
#include "./dirbuttonsitemdelegate.h"

#include "../../connector/syncthingconnection.h"
#include "../../model/syncthingdirectorymodel.h"
#include "../../widgets/misc/direrrorsdialog.h"

#include <QClipboard>
#include <QGuiApplication>
#include <QHeaderView>
#include <QMenu>
#include <QMouseEvent>

using namespace Data;

namespace QtGui {

DirView::DirView(QWidget *parent)
    : QTreeView(parent)
{
    header()->setSectionResizeMode(QHeaderView::ResizeToContents);
    header()->hide();
    setItemDelegateForColumn(1, new DirButtonsItemDelegate(this));
    setContextMenuPolicy(Qt::CustomContextMenu);
    connect(this, &DirView::customContextMenuRequested, this, &DirView::showContextMenu);
}

void DirView::mouseReleaseEvent(QMouseEvent *event)
{
    QTreeView::mouseReleaseEvent(event);

    // get SyncthingDir object
    auto *const dirModel = qobject_cast<SyncthingDirectoryModel *>(model());
    if (!dirModel) {
        return;
    }
    const QPoint pos(event->pos());
    const QModelIndex clickedIndex(indexAt(event->pos()));
    if (!clickedIndex.isValid() || clickedIndex.column() != 1) {
        return;
    }
    const auto *const dir = dirModel->dirInfo(clickedIndex);
    if (!dir) {
        return;
    }

    if (!clickedIndex.parent().isValid()) {
        // open/scan dir buttons
        const QRect itemRect(visualRect(clickedIndex));
        if (pos.x() <= itemRect.right() - 58) {
            return;
        }
        if (pos.x() < itemRect.right() - 34) {
            if (!dir->paused) {
                emit scanDir(*dir);
            }
        } else if (pos.x() < itemRect.right() - 17) {
            emit pauseResumeDir(*dir);
        } else {
            emit openDir(*dir);
        }
    } else if (clickedIndex.row() == 9 && dir->pullErrorCount) {
        auto &connection(*dirModel->connection());
        connection.requestDirPullErrors(dir->id);

        auto *const textViewDlg = new DirectoryErrorsDialog(connection, *dir);
        textViewDlg->setAttribute(Qt::WA_DeleteOnClose);
        textViewDlg->show();
    }
}

void DirView::showContextMenu(const QPoint &position)
{
    if (!selectionModel() || selectionModel()->selectedRows(0).size() != 1) {
        return;
    }
    QMenu menu(this);
    if (selectionModel()->selectedRows(0).at(0).parent().isValid()) {
        connect(menu.addAction(QIcon::fromTheme(QStringLiteral("edit-copy"), QIcon(QStringLiteral(":/icons/hicolor/scalable/actions/edit-copy.svg"))),
                    tr("Copy value")),
            &QAction::triggered, this, &DirView::copySelectedItem);
    } else {
        connect(menu.addAction(QIcon::fromTheme(QStringLiteral("edit-copy"), QIcon(QStringLiteral(":/icons/hicolor/scalable/actions/edit-copy.svg"))),
                    tr("Copy label/ID")),
            &QAction::triggered, this, &DirView::copySelectedItem);
        connect(menu.addAction(QIcon::fromTheme(QStringLiteral("edit-copy"), QIcon(QStringLiteral(":/icons/hicolor/scalable/actions/edit-copy.svg"))),
                    tr("Copy path")),
            &QAction::triggered, this, &DirView::copySelectedItemPath);
    }

    // map the coordinates to top-level widget if it is a QMenu (not sure why this is required)
    const auto *const topLevelWidget = this->topLevelWidget();
    if (qobject_cast<const QMenu *>(topLevelWidget)) {
        menu.exec(topLevelWidget->mapToGlobal(position));
    } else {
        menu.exec(viewport()->mapToGlobal(position));
    }
}

void DirView::copySelectedItem()
{
    if (!selectionModel() || selectionModel()->selectedRows(0).size() != 1) {
        return;
    }
    const QModelIndex selectedIndex = selectionModel()->selectedRows(0).at(0);
    QString text;
    if (selectedIndex.parent().isValid()) {
        // dev attribute
        text = model()->data(model()->index(selectedIndex.row(), 1, selectedIndex.parent())).toString();
    } else {
        // dev label/id
        text = model()->data(selectedIndex).toString();
    }
    if (!text.isEmpty()) {
        QGuiApplication::clipboard()->setText(text);
    }
}

void DirView::copySelectedItemPath()
{
    if (!selectionModel() || selectionModel()->selectedRows(0).size() != 1) {
        return;
    }
    const QModelIndex selectedIndex = selectionModel()->selectedRows(0).at(0);
    QString text;
    if (selectedIndex.parent().isValid()) {
        // dev attribute: should be handled by copySelectedItem() only
    } else {
        // dev path
        text = model()->data(model()->index(1, 1, selectedIndex)).toString();
    }
    if (!text.isEmpty()) {
        QGuiApplication::clipboard()->setText(text);
    }
}
} // namespace QtGui