/*
 * Oak Video Editor - 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 "sequencedialogparametertab.h"

#include <QGroupBox>
#include <QLabel>
#include <QPushButton>
#include <QVBoxLayout>


namespace olive
{

SequenceDialogParameterTab::SequenceDialogParameterTab(Sequence *sequence,
													   QWidget *parent)
	: QWidget(parent)
{
	QVBoxLayout *layout = new QVBoxLayout(this);

	int row = 0;

	// Set up video section
	QGroupBox *video_group = new QGroupBox();
	video_group->setTitle(tr("Video"));
	QGridLayout *video_layout = new QGridLayout(video_group);
	video_layout->addWidget(new QLabel(tr("Width:")), row, 0);
	width_slider_ = new IntegerSlider();
	width_slider_->SetMinimum(0);
	video_layout->addWidget(width_slider_, row, 1);
	row++;
	video_layout->addWidget(new QLabel(tr("Height:")), row, 0);
	height_slider_ = new IntegerSlider();
	height_slider_->SetMinimum(0);
	video_layout->addWidget(height_slider_, row, 1);
	row++;
	video_layout->addWidget(new QLabel(tr("Frame Rate:")), row, 0);
	framerate_combo_ = new FrameRateComboBox();
	video_layout->addWidget(framerate_combo_, row, 1);
	row++;
	video_layout->addWidget(new QLabel(tr("Pixel Aspect Ratio:")), row, 0);
	pixelaspect_combo_ = new PixelAspectRatioComboBox();
	video_layout->addWidget(pixelaspect_combo_, row, 1);
	row++;
	video_layout->addWidget(new QLabel(tr("Interlacing:")), row, 0);
	interlacing_combo_ = new InterlacedComboBox();
	video_layout->addWidget(interlacing_combo_, row, 1);
	layout->addWidget(video_group);

	row = 0;

	// Set up audio section
	QGroupBox *audio_group = new QGroupBox();
	audio_group->setTitle(tr("Audio"));
	QGridLayout *audio_layout = new QGridLayout(audio_group);
	audio_layout->addWidget(new QLabel(tr("Sample Rate:")), row, 0);
	audio_sample_rate_field_ = new SampleRateComboBox();
	audio_layout->addWidget(audio_sample_rate_field_, row, 1);
	row++;
	audio_layout->addWidget(new QLabel(tr("Channels:")), row, 0);
	audio_channels_field_ = new ChannelLayoutComboBox();
	audio_layout->addWidget(audio_channels_field_, row, 1);
	layout->addWidget(audio_group);

	row = 0;

	// Set up preview section
	QGroupBox *preview_group = new QGroupBox();
	preview_group->setTitle(tr("Preview"));
	QGridLayout *preview_layout = new QGridLayout(preview_group);
	preview_layout->addWidget(new QLabel(tr("Resolution:")), row, 0);
	preview_resolution_field_ = new VideoDividerComboBox();
	preview_layout->addWidget(preview_resolution_field_, row, 1);
	preview_resolution_label_ = new QLabel();
	preview_layout->addWidget(preview_resolution_label_, row, 2);
	row++;
	preview_layout->addWidget(new QLabel(tr("Quality:")), row, 0);
	preview_format_field_ = new PixelFormatComboBox(false);
	preview_layout->addWidget(preview_format_field_, row, 1, 1, 2);

	/* TEMP: Disable sequence auto-cache, wanna see if clip cache supersedes it.
  row++;
  preview_layout->addWidget(new QLabel(tr("Auto-Cache:")), row, 0);
  preview_layout->addWidget(preview_autocache_field_, row, 1);*/
	preview_autocache_field_ = new QCheckBox();

	layout->addWidget(preview_group);

	// Set values based on input sequence
	VideoParams vp = sequence->GetVideoParams();
	AudioParams ap = sequence->GetAudioParams();
	width_slider_->SetValue(vp.width());
	height_slider_->SetValue(vp.height());
	framerate_combo_->SetFrameRate(vp.time_base().flipped());
	pixelaspect_combo_->SetPixelAspectRatio(vp.pixel_aspect_ratio());
	interlacing_combo_->SetInterlaceMode(vp.interlacing());
	preview_resolution_field_->SetDivider(vp.divider());
	preview_format_field_->SetPixelFormat(vp.format());
	preview_autocache_field_->setChecked(sequence->IsVideoAutoCacheEnabled());
	audio_sample_rate_field_->SetSampleRate(ap.sample_rate());
	audio_channels_field_->SetChannelLayout(ap.channel_layout());

	connect(
		preview_resolution_field_,
		static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
		this, &SequenceDialogParameterTab::UpdatePreviewResolutionLabel);

	layout->addStretch();

	QPushButton *save_preset_btn = new QPushButton(tr("Save Preset"));
	connect(save_preset_btn, &QPushButton::clicked, this,
			&SequenceDialogParameterTab::SavePresetClicked);
	layout->addWidget(save_preset_btn);

	UpdatePreviewResolutionLabel();
}

void SequenceDialogParameterTab::PresetChanged(const SequencePreset &preset)
{
	width_slider_->SetValue(preset.width());
	height_slider_->SetValue(preset.height());
	framerate_combo_->SetFrameRate(preset.frame_rate());
	pixelaspect_combo_->SetPixelAspectRatio(preset.pixel_aspect());
	interlacing_combo_->SetInterlaceMode(preset.interlacing());
	audio_sample_rate_field_->SetSampleRate(preset.sample_rate());
	audio_channels_field_->SetChannelLayout(preset.channel_layout());
	preview_resolution_field_->SetDivider(preset.preview_divider());
	preview_format_field_->SetPixelFormat(preset.preview_format());
	preview_autocache_field_->setChecked(preset.preview_autocache());
}

void SequenceDialogParameterTab::SavePresetClicked()
{
	AVChannelLayout layout = GetSelectedAudioChannelLayout();
	emit SaveParametersAsPreset(SequencePreset(
		QString(), GetSelectedVideoWidth(), GetSelectedVideoHeight(),
		GetSelectedVideoFrameRate(), GetSelectedVideoPixelAspect(),
		GetSelectedVideoInterlacingMode(), GetSelectedAudioSampleRate(), layout,
		GetSelectedPreviewResolution(), GetSelectedPreviewFormat(),
		GetSelectedPreviewAutoCache()));
	av_channel_layout_uninit(&layout);
}

void SequenceDialogParameterTab::UpdatePreviewResolutionLabel()
{
	VideoParams test_param(GetSelectedVideoWidth(), GetSelectedVideoHeight(),
						   PixelFormat::INVALID,
						   VideoParams::kInternalChannelCount, rational(1),
						   VideoParams::kInterlaceNone,
						   preview_resolution_field_->currentData().toInt());

	preview_resolution_label_->setText(
		tr("(%1x%2)").arg(QString::number(test_param.effective_width()),
						  QString::number(test_param.effective_height())));
}

}
