/*
    Copyright (C) 2020 Carl Hetherington <cth@carlh.net>

    This file is part of DCP-o-matic.

    DCP-o-matic 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 2 of the License, or
    (at your option) any later version.

    DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.

*/


#include "content_advanced_dialog.h"
#include "dcpomatic_button.h"
#include "filter_dialog.h"
#include "static_text.h"
#include "wx_util.h"
#include "lib/content.h"
#include "lib/filter.h"
#include "lib/ffmpeg_content.h"
#include "lib/video_content.h"
#include <wx/gbsizer.h>
#include <boost/bind.hpp>


using std::string;
using std::vector;
using boost::bind;
using boost::dynamic_pointer_cast;
using boost::shared_ptr;



ContentAdvancedDialog::ContentAdvancedDialog (wxWindow* parent, shared_ptr<Content> content)
	: wxDialog (parent, wxID_ANY, _("Advanced content settings"))
	, _content (content)
{
	wxGridBagSizer* sizer = new wxGridBagSizer (DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);

	int r = 0;

	wxClientDC dc (this);
	wxSize size = dc.GetTextExtent (wxT ("A quite long name"));
#ifdef __WXGTK3__
	size.SetWidth (size.GetWidth() + 64);
#endif
	size.SetHeight (-1);

	add_label_to_sizer (sizer, this, _("Video filters"), true, wxGBPosition(r, 0));
	_filters = new StaticText (this, _("None"), wxDefaultPosition, size);
	_filters_button = new Button (this, _("Edit..."));
	wxBoxSizer* filters = new wxBoxSizer (wxHORIZONTAL);
	filters->Add (_filters, 1, wxALL | wxALIGN_CENTER_VERTICAL, DCPOMATIC_SIZER_GAP);
	filters->Add (_filters_button, 0, wxALL, DCPOMATIC_SIZER_GAP);
	sizer->Add (filters, wxGBPosition(r, 1));
	++r;

	wxCheckBox* ignore_video = new wxCheckBox (this, wxID_ANY, _("Ignore this content's video and use only audio, subtitles and closed captions"));
	sizer->Add (ignore_video, wxGBPosition(r, 0), wxGBSpan(1, 2));
	++r;

	wxSizer* overall = new wxBoxSizer (wxVERTICAL);
	overall->Add (sizer, 1, wxALL, DCPOMATIC_DIALOG_BORDER);
	wxSizer* buttons = CreateSeparatedButtonSizer (wxOK | wxCANCEL);
	if (buttons) {
		overall->Add (buttons, wxSizerFlags().Expand().DoubleBorder());
	}

	SetSizerAndFit (overall);

	ignore_video->Enable (static_cast<bool>(_content->video));
	ignore_video->SetValue (_content->video ? !content->video->use() : false);
	setup_filters ();

	ignore_video->Bind (wxEVT_CHECKBOX, bind(&ContentAdvancedDialog::ignore_video_changed, this, _1));
	_filters_button->Bind (wxEVT_BUTTON, bind(&ContentAdvancedDialog::edit_filters, this));
}


void
ContentAdvancedDialog::ignore_video_changed (wxCommandEvent& ev)
{
	 if (_content->video) {
		 _content->video->set_use (!ev.IsChecked());
	 }
}


void
ContentAdvancedDialog::setup_filters ()
{
	shared_ptr<FFmpegContent> fcs = dynamic_pointer_cast<FFmpegContent>(_content);
	if (!fcs) {
		checked_set (_filters, _("None"));
		_filters->Enable (false);
		_filters_button->Enable (false);
		return;
	}

	string p = Filter::ffmpeg_string (fcs->filters());
	if (p.empty()) {
		checked_set (_filters, _("None"));
	} else {
		if (p.length() > 25) {
			p = p.substr(0, 25) + "...";
		}
		checked_set (_filters, p);
	}
}


void
ContentAdvancedDialog::edit_filters ()
{
	shared_ptr<FFmpegContent> fcs = dynamic_pointer_cast<FFmpegContent>(_content);
	if (!fcs) {
		return;
	}

	FilterDialog* d = new FilterDialog (this, fcs->filters());
	d->ActiveChanged.connect (bind(&ContentAdvancedDialog::filters_changed, this, _1));
	d->ShowModal ();
	d->Destroy ();
}


void
ContentAdvancedDialog::filters_changed (vector<Filter const *> filters)
{
	shared_ptr<FFmpegContent> fcs = dynamic_pointer_cast<FFmpegContent>(_content);
	if (!fcs) {
		return;
	}

	fcs->set_filters (filters);
	setup_filters ();
}