/*
    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 "interop_metadata_dialog.h"
#include "editable_list.h"
#include "language_tag_widget.h"
#include "rating_dialog.h"
#include "lib/film.h"
#include <dcp/types.h>
#include <wx/gbsizer.h>

using std::string;
using std::vector;
using boost::weak_ptr;
using boost::shared_ptr;
#if BOOST_VERSION >= 106100
using namespace boost::placeholders;
#endif


static string
column (dcp::Rating r, int c)
{
	if (c == 0) {
		return r.agency;
	}

	return r.label;
}

InteropMetadataDialog::InteropMetadataDialog (wxWindow* parent, weak_ptr<Film> film)
	: wxDialog (parent, wxID_ANY, _("Metadata"))
	, _film (film)
{
	wxBoxSizer* overall_sizer = new wxBoxSizer (wxVERTICAL);
	SetSizer (overall_sizer);

	wxFlexGridSizer* sizer = new wxFlexGridSizer (2, DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);
	sizer->AddGrowableCol (1, 1);

	shared_ptr<Film> f = _film.lock();
	DCPOMATIC_ASSERT (f);

	_enable_subtitle_language = new wxCheckBox (this, wxID_ANY, _("Subtitle language"));
	sizer->Add (_enable_subtitle_language, 0, wxLEFT | wxRIGHT | wxALIGN_CENTER_VERTICAL, DCPOMATIC_SIZER_GAP);
	vector<dcp::LanguageTag> langs = f->subtitle_languages ();
	_enable_subtitle_language->SetValue (!langs.empty());
	_subtitle_language = new LanguageTagWidget (this, wxT(""), langs.empty() ? dcp::LanguageTag("en-US") : langs.front());
	sizer->Add (_subtitle_language->sizer(), 1, wxEXPAND);

	{
		int flags = wxALIGN_TOP | wxLEFT | wxRIGHT | wxTOP;
#ifdef __WXOSX__
		flags |= wxALIGN_RIGHT;
#endif
		wxStaticText* m = create_label (this, _("Ratings"), true);
		sizer->Add (m, 0, flags, DCPOMATIC_SIZER_GAP);
	}

	vector<EditableListColumn> columns;
	columns.push_back (EditableListColumn(_("Agency"), 200, true));
	columns.push_back (EditableListColumn(_("Label"), 50, true));
	_ratings = new EditableList<dcp::Rating, RatingDialog> (
		this,
		columns,
		boost::bind(&InteropMetadataDialog::ratings, this),
		boost::bind(&InteropMetadataDialog::set_ratings, this, _1),
		boost::bind(&column, _1, _2),
		true,
		false
		);
	sizer->Add (_ratings, 1, wxEXPAND);

	add_label_to_sizer (sizer, this, _("Content version"), true, 0, wxLEFT | wxRIGHT | wxALIGN_CENTER_VERTICAL);
	_content_version = new wxTextCtrl (this, wxID_ANY);
	sizer->Add (_content_version, 1, wxEXPAND);

	vector<string> cv = f->content_versions();
	_content_version->SetValue (std_to_wx(cv.empty() ? "" : cv[0]));

	overall_sizer->Add (sizer, 1, wxEXPAND | wxALL, DCPOMATIC_DIALOG_BORDER);

	wxSizer* buttons = CreateSeparatedButtonSizer (wxCLOSE);
	if (buttons) {
		overall_sizer->Add (buttons, wxSizerFlags().Expand().DoubleBorder());
	}

	overall_sizer->Layout ();
	overall_sizer->SetSizeHints (this);

	_enable_subtitle_language->Bind (wxEVT_CHECKBOX, boost::bind(&InteropMetadataDialog::setup_sensitivity, this));
	_subtitle_language->Changed.connect (boost::bind(&InteropMetadataDialog::subtitle_language_changed, this, _1));

	_content_version->Bind (wxEVT_TEXT, boost::bind(&InteropMetadataDialog::content_version_changed, this));
	_content_version->SetFocus ();

	setup_sensitivity ();
}


void
InteropMetadataDialog::setup_sensitivity ()
{
	bool const enabled = _enable_subtitle_language->GetValue();
	_subtitle_language->enable (enabled);

	shared_ptr<Film> film = _film.lock ();
	DCPOMATIC_ASSERT (film);
	if (enabled) {
		film->set_subtitle_language (_subtitle_language->get());
	} else {
		film->unset_subtitle_language ();
	}
}


void
InteropMetadataDialog::subtitle_language_changed (dcp::LanguageTag language)
{
	shared_ptr<Film> film = _film.lock ();
	DCPOMATIC_ASSERT (film);
	film->set_subtitle_language (language);
}


vector<dcp::Rating>
InteropMetadataDialog::ratings () const
{
	shared_ptr<Film> film = _film.lock ();
	DCPOMATIC_ASSERT (film);
	return film->ratings ();
}

void
InteropMetadataDialog::set_ratings (vector<dcp::Rating> r)
{
	shared_ptr<Film> film = _film.lock ();
	DCPOMATIC_ASSERT (film);
	film->set_ratings (r);
}

void
InteropMetadataDialog::content_version_changed ()
{
	shared_ptr<Film> film = _film.lock ();
	DCPOMATIC_ASSERT (film);
	vector<string> cv;
	cv.push_back (wx_to_std(_content_version->GetValue()));
	film->set_content_versions (cv);
}