/*
    Copyright (C) 2012-2021 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 "confirm_kdm_email_dialog.h"
#include "dcpomatic_button.h"
#include "dkdm_dialog.h"
#include "dkdm_output_panel.h"
#include "kdm_cpl_panel.h"
#include "kdm_timing_panel.h"
#include "recipients_panel.h"
#include "static_text.h"
#include "wx_util.h"
#include "wx_variant.h"
#include "lib/config.h"
#include "lib/film.h"
#include "lib/job_manager.h"
#include "lib/kdm_with_metadata.h"
#include <libcxml/cxml.h>
#include <dcp/exceptions.h>
#include <dcp/warnings.h>
LIBDCP_DISABLE_WARNINGS
#include <wx/listctrl.h>
#include <wx/treectrl.h>
LIBDCP_ENABLE_WARNINGS


using std::exception;
using std::list;
using std::make_pair;
using std::map;
using std::pair;
using std::runtime_error;
using std::shared_ptr;
using std::string;
using std::vector;
using boost::bind;
using boost::optional;
#if BOOST_VERSION >= 106100
using namespace boost::placeholders;
#endif


DKDMDialog::DKDMDialog (wxWindow* parent, shared_ptr<const Film> film)
	: wxDialog (parent, wxID_ANY, _("Make DKDMs"))
	, _film (film)
{
	/* Main sizers */
	auto horizontal = new wxBoxSizer (wxHORIZONTAL);
	auto left = new wxBoxSizer (wxVERTICAL);
	auto right = new wxBoxSizer (wxVERTICAL);

	horizontal->Add (left, 1, wxEXPAND | wxRIGHT, DCPOMATIC_SIZER_X_GAP * 4);
	horizontal->Add (right, 1, wxEXPAND);

	/* Font for sub-headings */
	wxFont subheading_font (*wxNORMAL_FONT);
	subheading_font.SetWeight (wxFONTWEIGHT_BOLD);

	/* Sub-heading: Screens */
	auto h = new StaticText (this, _("Recipients"));
	h->SetFont (subheading_font);
	left->Add (h, 0, wxBOTTOM, DCPOMATIC_SIZER_Y_GAP);
	_recipients = new RecipientsPanel (this);
	left->Add (_recipients, 1, wxEXPAND | wxBOTTOM, DCPOMATIC_SIZER_Y_GAP);

	/* Sub-heading: Timing */
	/// TRANSLATORS: translate the word "Timing" here; do not include the "KDM|" prefix
	h = new StaticText (this, S_("KDM|Timing"));
	h->SetFont (subheading_font);
	right->Add (h);
	_timing = new KDMTimingPanel (this);
	right->Add (_timing);

	/* Sub-heading: CPL */
	h = new StaticText (this, _("CPL"));
	h->SetFont (subheading_font);
	right->Add (h);

	vector<CPLSummary> cpls;
	for (auto const& i: film->cpls()) {
		if (i.encrypted) {
			cpls.push_back (i);
		}
	}

	_cpl = new KDMCPLPanel (this, cpls);
	right->Add (_cpl, 0, wxEXPAND);

	/* Sub-heading: Output */
	h = new StaticText (this, _("Output"));
	h->SetFont (subheading_font);
	right->Add(h, 0, wxTOP, DCPOMATIC_SUBHEADING_TOP_PAD);
	_output = new DKDMOutputPanel (this);
	right->Add (_output, 0, wxEXPAND | wxTOP, DCPOMATIC_SIZER_GAP);

	_make = new Button (this, _("Make DKDMs"));
	right->Add (_make, 0, wxTOP | wxBOTTOM, DCPOMATIC_SIZER_GAP);

	/* Make an overall sizer to get a nice border */

	auto overall_sizer = new wxBoxSizer (wxVERTICAL);
	overall_sizer->Add (horizontal, 0, wxEXPAND | wxTOP | wxLEFT | wxRIGHT, DCPOMATIC_DIALOG_BORDER);

	/* Bind */

	_recipients->RecipientsChanged.connect (boost::bind(&DKDMDialog::setup_sensitivity, this));
	_timing->TimingChanged.connect (boost::bind(&DKDMDialog::setup_sensitivity, this));
	_make->Bind (wxEVT_BUTTON, boost::bind(&DKDMDialog::make_clicked, this));
	_cpl->Changed.connect(boost::bind(&DKDMDialog::setup_sensitivity, this));

	setup_sensitivity ();

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


void
DKDMDialog::setup_sensitivity ()
{
	_recipients->setup_sensitivity ();
	_output->setup_sensitivity ();
	_make->Enable (!_recipients->recipients().empty() && _timing->valid() && _cpl->has_selected());
}


bool
DKDMDialog::confirm_overwrite (boost::filesystem::path path)
{
	return confirm_dialog (
		this,
		wxString::Format(_("File %s already exists.  Do you want to overwrite it?"), std_to_wx(path.string()).data())
		);
}


void
DKDMDialog::make_clicked ()
{
	auto film = _film.lock ();
	DCPOMATIC_ASSERT (film);

	list<KDMWithMetadataPtr> kdms;
	try {
		for (auto i: _recipients->recipients()) {
			auto p = kdm_for_dkdm_recipient(film, _cpl->cpl(), i, _timing->from(), _timing->until());
			if (p) {
				kdms.push_back (p);
			}
		}
	} catch (dcp::BadKDMDateError& e) {
		if (e.starts_too_early()) {
			error_dialog (this, _("The KDM start period is before (or close to) the start of the signing certificate's validity period.  Use a later start time for this KDM."));
		} else {
			error_dialog(
				this,
				variant::wx::insert_dcpomatic(
					_("The KDM end period is after (or close to) the end of the signing certificates' validity period.  "
					  "Either use an earlier end time for this KDM or re-create your signing certificates in the %s preferences window.")
					)
				);
		}
		return;
	} catch (runtime_error& e) {
		error_dialog (this, std_to_wx(e.what()));
		return;
	}

	auto result = _output->make(kdms, film->dcp_name(), bind(&DKDMDialog::confirm_overwrite, this, _1));
	if (result.first) {
		JobManager::instance()->add (result.first);
	}

	if (result.second > 0) {
		/* XXX: proper plural form support in wxWidgets? */
		auto s = result.second == 1 ? _("%d DKDM written to %s") : _("%d DKDMs written to %s");
		message_dialog (
			this,
			wxString::Format(s, result.second, std_to_wx(_output->directory().string()).data())
			);
	}
}