/*
 * Olive Community Edition - Non-Linear Video Editor
 * Copyright (C) 2025 Olive CE Team
 *
 * 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 "edit.h"
#include "widget/timelinewidget/timelinewidget.h"

namespace olive
{

EditTool::EditTool(TimelineWidget *parent)
	: BeamTool(parent)
{
}

void EditTool::MousePress(TimelineViewMouseEvent *event)
{
	if (!(event->GetModifiers() & Qt::ShiftModifier)) {
		parent()->DeselectAll();
	}
}

void EditTool::MouseMove(TimelineViewMouseEvent *event)
{
	if (dragging_) {
		rational end_frame = event->GetFrame(true);

		if (Core::instance()->snapping()) {
			rational movement;
			parent()->SnapPoint({ end_frame }, &movement);
			if (!movement.isNull()) {
				end_frame += movement;
			}
		}

		parent()->SetSelections(start_selections_, false);
		parent()->AddSelection(TimeRange(start_coord_.GetFrame(), end_frame),
							   start_coord_.GetTrack());
	} else {
		start_selections_ = parent()->GetSelections();

		dragging_ = true;

		start_coord_ = event->GetCoordinates(true);

		// Snap if we're snapping
		if (Core::instance()->snapping()) {
			rational movement;
			parent()->SnapPoint({ start_coord_.GetFrame() }, &movement);
			if (!movement.isNull()) {
				start_coord_.SetFrame(start_coord_.GetFrame() + movement);
			}
		}

		dragging_ = true;
	}
}

void EditTool::MouseRelease(TimelineViewMouseEvent *event)
{
	auto current_sel = parent()->GetSelections();
	parent()->SetSelections(start_selections_, false);
	parent()->SetSelections(current_sel, true);

	dragging_ = false;
}

void EditTool::MouseDoubleClick(TimelineViewMouseEvent *event)
{
	Block *item = parent()->GetItemAtScenePos(event->GetCoordinates());

	if (item && !item->track()->IsLocked()) {
		parent()->AddSelection(item);
	}
}

}