/***

  Olive - Non-Linear Video Editor
  Copyright (C) 2022 Olive Team
  Modifications Copyright (C) 2025 mikesolar

  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 "filefield.h"

#include <QFileDialog>
#include <QFileInfo>
#include <QHBoxLayout>
#include <QUrl>

#include "ui/icons/icons.h"

namespace olive
{

FileField::FileField(QWidget *parent)
	: QWidget(parent)
	, directory_mode_(false)
{
	QHBoxLayout *layout = new QHBoxLayout(this);

	layout->setContentsMargins(0, 0, 0, 0);

	line_edit_ = new QLineEdit();
	connect(line_edit_, &QLineEdit::textChanged, this,
			&FileField::line_edit_changed);
	connect(line_edit_, &QLineEdit::textEdited, this,
			&FileField::filename_changed);
	layout->addWidget(line_edit_);

	browse_btn_ = new QPushButton();
	browse_btn_->setIcon(icon::open);
	connect(browse_btn_, &QPushButton::clicked, this,
			&FileField::browse_btn_clicked);
	layout->addWidget(browse_btn_);
}

void FileField::browse_btn_clicked()
{
	QString s;

	if (sidebar_urls_.isEmpty()) {
		if (directory_mode_) {
			s = QFileDialog::getExistingDirectory(this, tr("Open Directory"));
		} else {
			s = QFileDialog::getOpenFileName(this, tr("Open File"), QString(),
											 name_filter_);
		}
	} else {
		// Sidebar URLs require the non-static dialog API
		QFileDialog dialog(this, tr("Open File"));
		dialog.setFileMode(directory_mode_ ? QFileDialog::Directory :
											 QFileDialog::ExistingFile);
		dialog.setAcceptMode(QFileDialog::AcceptOpen);
		if (!directory_mode_ && !name_filter_.isEmpty()) {
			dialog.setNameFilter(name_filter_);
		}
		dialog.setSidebarUrls(sidebar_urls_);
		if (directory_mode_) {
			dialog.setOption(QFileDialog::ShowDirsOnly, true);
		}

		if (dialog.exec() == QDialog::Accepted && !dialog.selectedFiles().isEmpty()) {
			s = dialog.selectedFiles().first();
		}
	}

	if (!s.isEmpty()) {
		line_edit_->setText(s);
		emit filename_changed(s);
	}
}

void FileField::line_edit_changed(const QString &text)
{
	if (QFileInfo::exists(text) || text.isEmpty()) {
		line_edit_->setStyleSheet(QString());
	} else {
		line_edit_->setStyleSheet(QStringLiteral("QLineEdit {color: red;}"));
	}
}

}