/* -*- Mode: c++ -*- */
/***************************************************************************
 *            domloadertest.cc
 *
 *  Sun Jun 10 17:48:04 CEST 2018
 *  Copyright 2018 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of DrumGizmo.
 *
 *  DrumGizmo is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  DrumGizmo 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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with DrumGizmo; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "dgunit.h"

#include <DGDOM.h>
#include <domloader.h>
#include <dgxmlparser.h>
#include <drumkit.h>
#include <settings.h>
#include <random.h>

#include "scopedfile.h"
#include "path.h"

class DOMLoaderTest
	: public DGUnit
{
public:
	DOMLoaderTest()
	{
		DGUNIT_TEST(DOMLoaderTest::testTest);
	}

	Settings settings;
	Random random;

	//! This just creates some drumkit.
	void testTest()
	{
		ScopedFile scoped_instrument_file1(
			"<?xml version='1.0' encoding='UTF-8'?>\n" \
			"<instrument version=\"2.0\" name=\"Snare1\">\n" \
			" <samples>\n" \
			"  <sample name=\"Snare-1\" power=\"0.00985718\">\n" \
			"   <audiofile channel=\"AmbLeft\" file=\"1-Snare.wav\" filechannel=\"1\"/>\n" \
			"   <audiofile channel=\"AmbRight\" file=\"1-Snare.wav\" filechannel=\"2\"/>\n" \
			"   <audiofile channel=\"SnareBottom\" file=\"1-Snare.wav\" filechannel=\"12\"/>\n" \
			"   <audiofile channel=\"SnareTop\" file=\"1-Snare.wav\" filechannel=\"13\"/>\n" \
			"  </sample>\n" \
			"  <sample name=\"Snare-2\" power=\"0.0124808\">\n" \
			"   <audiofile channel=\"AmbLeft\" file=\"2-Snare.wav\" filechannel=\"1\"/>\n" \
			"   <audiofile channel=\"AmbRight\" file=\"2-Snare.wav\" filechannel=\"2\"/>\n" \
			"   <audiofile channel=\"SnareBottom\" file=\"2-Snare.wav\" filechannel=\"12\"/>\n" \
			"   <audiofile channel=\"SnareTop\" file=\"2-Snare.wav\" filechannel=\"13\"/>\n" \
			"  </sample>\n" \
			" </samples>\n" \
			"</instrument>");

		// Version 1.0 format
		ScopedFile scoped_instrument_file2(
			"<?xml version='1.0' encoding='UTF-8'?>\n" \
			"<instrument name=\"Snare2\">\n" \
			" <samples>\n" \
			"  <sample name=\"Snare-1\">\n" \
			"   <audiofile channel=\"AmbLeft2\" file=\"1-Snare-1.wav\"/>\n" \
			"   <audiofile channel=\"AmbRight2\" file=\"1-Snare-2.wav\"/>\n" \
			"   <audiofile channel=\"SnareBottom2\" file=\"1-Snare-3.wav\"/>\n" \
			"   <audiofile channel=\"SnareTop2\" file=\"1-Snare-4.wav\"/>\n" \
			"  </sample>\n" \
			"  <sample name=\"Snare-2\">\n" \
			"   <audiofile channel=\"AmbLeft2\" file=\"2-Snare-1.wav\"/>\n" \
			"   <audiofile channel=\"AmbRight2\" file=\"2-Snare-2.wav\"/>\n" \
			"   <audiofile channel=\"SnareBottom2\" file=\"2-Snare-3.wav\"/>\n" \
			"   <audiofile channel=\"SnareTop2\" file=\"2-Snare-4.wav\"/>\n" \
			"  </sample>\n" \
			" </samples>\n" \
			" <velocities>\n" \
			"  <velocity lower=\"0\" upper=\"0.6\">\n" \
			"   <sampleref probability=\"0.6\" name=\"Snare-1\"/>\n" \
			"   <sampleref probability=\"0.4\" name=\"Snare-2\"/>\n" \
			"  </velocity>" \
			"  <velocity lower=\"0.6\" upper=\"1.0\">" \
			"   <sampleref probability=\"0.4\" name=\"Snare-2\"/>" \
			"   <sampleref probability=\"0.6\" name=\"Snare-1\"/>" \
			"  </velocity>" \
			" </velocities>" \
			"</instrument>");

		ScopedFile scoped_file(
			std::string(
			"<?xml version='1.0' encoding='UTF-8'?>\n" \
			"<drumkit samplerate=\"48000\" version=\"2.0.0\">\n" \
			"  <channels>\n" \
			"   <channel name=\"AmbLeft\"/>\n" \
			"   <channel name=\"AmbRight\"/>\n" \
			"   <channel name=\"SnareTop\"/>\n" \
			"   <channel name=\"SnareBottom\"/>\n" \
			"  </channels>\n" \
			"  <instruments>\n" \
			"    <instrument name=\"Snare1\" file=\"") + getFile(scoped_instrument_file1.filename()) + std::string("\">\n" \
			"      <channelmap in=\"AmbLeft\" out=\"AmbLeft\" main=\"true\"/>\n" \
			"      <channelmap in=\"AmbRight\" out=\"AmbRight\" main=\"true\"/>\n" \
			"      <channelmap in=\"SnareTop\" out=\"SnareTop\"/>\n" \
			"      <channelmap in=\"SnareBottom\" out=\"SnareBottom\"/>\n" \
			"    </instrument>\n" \
			"    <instrument name=\"Snare2\" file=\"") + getFile(scoped_instrument_file2.filename()) + std::string("\">\n" \
			"      <channelmap in=\"AmbLeft2\" out=\"AmbLeft\" main=\"true\"/>\n" \
			"      <channelmap in=\"AmbRight2\" out=\"AmbRight\" main=\"true\"/>\n" \
			"      <channelmap in=\"SnareTop2\" out=\"SnareTop\"/>\n" \
			"      <channelmap in=\"SnareBottom2\" out=\"SnareBottom\"/>\n" \
			"    </instrument>\n" \
			"  </instruments>\n" \
			"</drumkit>"));

		DrumKit drumkit;

		DrumkitDOM drumkitdom;
		std::vector<InstrumentDOM> instrumentdoms;
		DGUNIT_ASSERT(parseDrumkitFile(scoped_file.filename(), drumkitdom));
		auto basepath = getPath(scoped_file.filename());
		for(const auto& ref: drumkitdom.instruments)
		{
			instrumentdoms.emplace_back();
			DGUNIT_ASSERT(parseInstrumentFile(basepath + "/" + ref.file, instrumentdoms.back()));
		}

		DOMLoader domloader(settings, random);
		DGUNIT_ASSERT(domloader.loadDom(basepath, drumkitdom, instrumentdoms, drumkit));

		//
		// Drumkit:
		//

		DGUNIT_ASSERT_EQUAL(std::size_t(2), drumkit.instruments.size());
		DGUNIT_ASSERT_EQUAL(std::size_t(4), drumkit.channels.size());

		DGUNIT_ASSERT_EQUAL(std::string("AmbLeft"), drumkit.channels[0].name);
		DGUNIT_ASSERT_EQUAL(std::string("AmbRight"), drumkit.channels[1].name);
		DGUNIT_ASSERT_EQUAL(std::string("SnareTop"), drumkit.channels[2].name);
		DGUNIT_ASSERT_EQUAL(std::string("SnareBottom"), drumkit.channels[3].name);

		DGUNIT_ASSERT_EQUAL(std::size_t(48000), drumkit._samplerate);

		DGUNIT_ASSERT(VersionStr("2.0.0") == drumkit._version);

		//
		// Instrument1 'Snare1':
		//
		{
		auto& instrument = *drumkit.instruments[0];
		DGUNIT_ASSERT_EQUAL(std::string(""), instrument._group);
		DGUNIT_ASSERT_EQUAL(std::string("Snare1"), instrument._name);
		DGUNIT_ASSERT_EQUAL(std::string(""), instrument._description);

		DGUNIT_ASSERT(VersionStr("2.0.0") == instrument.version);

		// NOTE: instrument.samples are the sample map belonging to version 1.0
		DGUNIT_ASSERT_EQUAL(std::size_t(2), instrument.samplelist.size());
		{
			const auto& sample = *instrument.samplelist[0];
			DGUNIT_ASSERT_EQUAL(std::string("Snare-1"), sample.name);
			DGUNIT_ASSERT_EQUAL(0.00985718f, sample.power);
			DGUNIT_ASSERT_EQUAL(std::size_t(4), sample.audiofiles.size());
			for(const auto& audiofile : sample.audiofiles)
			{
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/1-Snare.wav"), audiofile.second->filename);
				switch(audiofile.second->filechannel)
				{
					// NOTE: Channel numbers are zero based - they are 1 based in the xml
				case 0:
					DGUNIT_ASSERT_EQUAL(std::string("AmbLeft"),
					                    audiofile.second->instrument_channel->name);
					break;
				case 1:
					DGUNIT_ASSERT_EQUAL(std::string("AmbRight"),
					                    audiofile.second->instrument_channel->name);
					break;
				case 11:
					DGUNIT_ASSERT_EQUAL(std::string("SnareBottom"),
					                    audiofile.second->instrument_channel->name);
					break;
				case 12:
					DGUNIT_ASSERT_EQUAL(std::string("SnareTop"),
					                    audiofile.second->instrument_channel->name);
					break;
				default:
					DGUNIT_ASSERT(false);
					break;
				}
			}
		}

		{
			const auto& sample = *instrument.samplelist[1];
			DGUNIT_ASSERT_EQUAL(std::string("Snare-2"), sample.name);
			DGUNIT_ASSERT_EQUAL(0.0124808f, sample.power);
			DGUNIT_ASSERT_EQUAL(std::size_t(4), sample.audiofiles.size());
			for(const auto& audiofile : sample.audiofiles)
			{
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/2-Snare.wav"), audiofile.second->filename);
				switch(audiofile.second->filechannel)
				{
					// NOTE: Channel numbers are zero based - they are 1 based in the xml
				case 0:
					DGUNIT_ASSERT_EQUAL(std::string("AmbLeft"),
					                    audiofile.second->instrument_channel->name);
					break;
				case 1:
					DGUNIT_ASSERT_EQUAL(std::string("AmbRight"),
					                    audiofile.second->instrument_channel->name);
					break;
				case 11:
					DGUNIT_ASSERT_EQUAL(std::string("SnareBottom"),
					                    audiofile.second->instrument_channel->name);
					break;
				case 12:
					DGUNIT_ASSERT_EQUAL(std::string("SnareTop"),
					                    audiofile.second->instrument_channel->name);
					break;
				default:
					DGUNIT_ASSERT(false);
					break;
				}
			}
		}
		}

		//
		// Instrument2 'Snare2' (version 1.0 instrument):
		//

		{
			auto& instrument = *drumkit.instruments[1];
			DGUNIT_ASSERT_EQUAL(std::string(""), instrument._group);
			DGUNIT_ASSERT_EQUAL(std::string("Snare2"), instrument._name);
			DGUNIT_ASSERT_EQUAL(std::string(""), instrument._description);

			DGUNIT_ASSERT(VersionStr("1.0.0") == instrument.version);

			// NOTE: instrument.samples are the sample map belonging to version 1.0
			DGUNIT_ASSERT_EQUAL(std::size_t(2), instrument.samplelist.size());
			{
				const auto& sample = *instrument.samplelist[0];
				DGUNIT_ASSERT_EQUAL(std::string("Snare-1"), sample.name);
				DGUNIT_ASSERT_EQUAL(std::size_t(4), sample.audiofiles.size());
				auto afile = sample.audiofiles.begin();
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/1-Snare-1.wav"), afile->second->filename);
				DGUNIT_ASSERT_EQUAL(std::string("AmbLeft"), afile->second->instrument_channel->name);
				++afile;
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/1-Snare-2.wav"), afile->second->filename);
				DGUNIT_ASSERT_EQUAL(std::string("AmbRight"), afile->second->instrument_channel->name);
				++afile;
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/1-Snare-3.wav"), afile->second->filename);
				DGUNIT_ASSERT_EQUAL(std::string("SnareBottom"), afile->second->instrument_channel->name);
				++afile;
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/1-Snare-4.wav"), afile->second->filename);
				DGUNIT_ASSERT_EQUAL(std::string("SnareTop"), afile->second->instrument_channel->name);
			}

			{
				const auto& sample = *instrument.samplelist[1];
				DGUNIT_ASSERT_EQUAL(std::string("Snare-2"), sample.name);
				DGUNIT_ASSERT_EQUAL(std::size_t(4), sample.audiofiles.size());
				auto afile = sample.audiofiles.begin();
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/2-Snare-1.wav"), afile->second->filename);
				DGUNIT_ASSERT_EQUAL(std::string("AmbLeft"), afile->second->instrument_channel->name);
				++afile;
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/2-Snare-2.wav"), afile->second->filename);
				DGUNIT_ASSERT_EQUAL(std::string("AmbRight"), afile->second->instrument_channel->name);
				++afile;
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/2-Snare-3.wav"), afile->second->filename);
				DGUNIT_ASSERT_EQUAL(std::string("SnareBottom"), afile->second->instrument_channel->name);
				++afile;
				DGUNIT_ASSERT_EQUAL(std::string("/tmp/2-Snare-4.wav"), afile->second->filename);
				DGUNIT_ASSERT_EQUAL(std::string("SnareTop"), afile->second->instrument_channel->name);
			}

			DGUNIT_ASSERT_EQUAL(std::size_t(4), instrument.samples.values.size());
			auto value = instrument.samples.values.begin();
			DGUNIT_ASSERT_EQUAL(0.0, value->first.first); // lower
			DGUNIT_ASSERT_EQUAL(0.6, value->first.second); // upper
			DGUNIT_ASSERT_EQUAL(std::string("Snare-1"), value->second->name);
			++value;
			DGUNIT_ASSERT_EQUAL(0.0, value->first.first); // lower
			DGUNIT_ASSERT_EQUAL(0.6, value->first.second); // upper
			DGUNIT_ASSERT_EQUAL(std::string("Snare-2"), value->second->name);
			++value;
			DGUNIT_ASSERT_EQUAL(0.6, value->first.first); // lower
			DGUNIT_ASSERT_EQUAL(1.0, value->first.second); // upper
			DGUNIT_ASSERT_EQUAL(std::string("Snare-2"), value->second->name);
			++value;
			DGUNIT_ASSERT_EQUAL(0.6, value->first.first); // lower
			DGUNIT_ASSERT_EQUAL(1.0, value->first.second); // upper
			DGUNIT_ASSERT_EQUAL(std::string("Snare-1"), value->second->name);
		}
	}
};

// Registers the fixture into the 'registry'
static DOMLoaderTest test;