(
var formatPatternData;

//~~~~~~~~~~~~ALLOCATE BUSSES~~~~~~~~~~~~
~allocBusses = {arg server;
	var preampBusses, accompBusses, postampBusses;
	preampBusses = 3.collect({Bus.audio(server, 1)});
	accompBusses = 4.collect({Bus.audio(server, 1)});
	postampBusses = 7.collect({Bus.audio(server, 1)});
	[preampBusses, accompBusses, postampBusses];
};

//~~~~~~~~~~~~DEFINE SYNTHS~~~~~~~~~~~~
~defineSynths = {arg server, preampBusses, accompBusses, postampBusses;
	var sdPlayer, sdTransport, sdClick, sdAmpCurve, sdEns, sdAccomp, sdClip, sdBass, sdDiskOut, allSds;

	sdPlayer = SynthDef(\masterPlayerControl_ ++ ~hash, {
		var router, sigs, sigsPanned, masterSig, imp;

		sigs = postampBusses.collect({arg bus, i; In.ar(bus) * NamedControl.kr(\vol_ ++ i, 1, 0.1) * NamedControl.kr(\mute_ ++ i, 1, 0.1)});
		router = sigs.collect({arg sig, i; NamedControl.kr(\out_ ++ i, 0, 0)});
		sigs.collect({arg sig, i; Out.ar(router[i] - 1, sig * router[i].sign)});

		sigsPanned = sigs.collect({arg sig, i; Pan2.ar(sig, NamedControl.kr(\pan_ ++ i, 0, 0.1))});
		masterSig = Mix.ar(sigsPanned.collect({arg sig, i; sig * abs(router[i].sign - 1)}));
		masterSig = masterSig * NamedControl.kr(\masterVol, 1, 0.1) * NamedControl.kr(\masterMute, 1, 0.1);

		Out.ar(NamedControl.kr(\masterOut, 0, 0), masterSig);

		imp = Impulse.kr(10);
		SendReply.kr(imp, '/masterLevels_' ++ ~hash, values: [Amplitude.kr(masterSig)]);
		sigs.collect({arg sig, i; SendReply.kr(imp, '/trackLevel_' ++ i ++ "_" ++ ~hash, values: [Amplitude.kr(sig)])});
	});

	sdTransport = SynthDef(\transport_ ++ ~hash, {arg measure = 0, beat = 0, section = 0, subsection = 0, gate = 1, dur = 1;
		SendReply.kr(Impulse.kr(0) * (measure > 0) * (beat > 0),'/measureClock_' ++ ~hash, values: [measure, beat, section, subsection]);
		EnvGen.kr(Env.sine(dur), gate, doneAction: 2);
	});

	sdClick = SynthDef(\click_ ++ ~hash, {arg beat = 0, gate = 1, dur = 1;
		Out.ar(postampBusses[6], 10 * BPF.ar(WhiteNoise.ar * EnvGen.kr(Env.perc(0.01, 0.1), gate), 440 * ((beat <= 1) + 1), 0.02));
		EnvGen.kr(Env.sine(dur), gate, doneAction: 2);
	});

	sdAmpCurve = SynthDef(\amp_curve_ ++ ~hash, {arg amp = 1, dur = 0.1, bus = 0;
		Out.kr(bus, amp.lag)
	});

	sdEns = SynthDef(\ens_ ++ ~hash, {arg freq = 440, amp = 1, dur = 1, gate = 1, bus = 0, ampBus = 0, rel = 0.1;
		Out.ar(bus, SinOsc.ar(freq, 2pi.rand, 0.1) * amp * Latch.kr(In.kr(ampBus), Impulse.kr(0)) * EnvGen.kr(Env.asr(0.1, 1, rel), gate, doneAction: 2))
	});

	sdAccomp = SynthDef(\accomp_ ++ ~hash, {arg freq = 440, amp = 1, sustain = 1, dur = 1, gate = 1, bout = 0, ampBus = 0, rel = 0.01;
		Out.ar(bout, SinOsc.ar(freq, 2pi.rand, 1) * 0.01 * amp * Latch.kr(In.kr(ampBus), Impulse.kr(0)) * EnvGen.kr(Env.asr(sustain, 1, rel), gate, doneAction: 2))
	});

	sdClip = SynthDef(\clip_ ++ ~hash, {arg dur = 1, gate = 1, bin = 0, bus = 0;
		Out.ar(bus, (In.ar(bin)).clip(0, 1) * 50)
	});

	sdBass = SynthDef(\bass_mono_ ++ ~hash, {arg freq = 440, ampBus = 0, bus = 0;
		Out.ar(bus, (SinOsc.ar(freq) * 0.5 * In.kr(ampBus)))
	});

	sdDiskOut = SynthDef(\disk_out_ ++ ~hash, {arg bufnum, inbus;
		DiskOut.ar(bufnum, In.ar(inbus));
	});

	allSds = [sdPlayer, sdTransport, sdClick, sdAmpCurve, sdEns, sdAccomp, sdClip, sdBass, sdDiskOut];
	allSds.do({arg sd; sd.add});
	allSds
};


// group data by measures for navigation
formatPatternData = {arg musData, measureLen, rel, print = false;
	var dataLen;
	dataLen = musData[0][0].size + 1;
	musData.collect({arg partData;
		var res;
		res = partData;
		res = res.collect({arg mData, index; mData.add(if(index != (res.size - 1), {rel}, {5.rand + 5}))});
		res = res.flop;
		res = res.add(res[1]);
		res[1] = (res[1].differentiate.drop(1) ++ [10]);
		res = res.flop ++ measureLen.collect({arg measure; dataLen.collect({0}) ++ [measure * 16]});
		res = res.sort({arg a, b; a.last < b.last}).flop;
		res = res.insert(1, (res.last.differentiate.drop(1) ++ [10])).flop;
		res = res.separate({arg a, b; (a.last / 16).trunc != (b.last / 16).trunc});
		res.collect({arg measureData; measureData.flop})
	}).flop
};


//~~~~~~~~~~~~GENERATE PATTERNS~~~~~~~~~~~~
//this generates patterns grouped by measures except for bass data and amp curve data which are much higher resolution
//these are used to make playable patterns
~genPatterns = {arg ensData, accompData, bassData, ampData, sectionData, preampBusses, accompBusses, postampBusses;
	var measureLen, ensDataFormatted, accompDataFormatted, bassDataFormatted, ampDataFormatted,
	dUnit, section, subsection, patterns;

	measureLen = ((
		ensData.collect({arg partData; partData.last[1]}) ++
		accompData.flatten.collect({arg partData; partData.last[1]})
	).maxItem.ceil(16) / 16).asInteger + 1;

	ensDataFormatted = formatPatternData.value(ensData, measureLen, 0.1, true);
	accompDataFormatted = formatPatternData.value(accompData.flatten, measureLen, 0.01);
	dUnit = 8.reciprocal;

	patterns = measureLen.collect({arg measure;
		if(sectionData[measure * 4] != nil, {
			section = sectionData[measure * 4][2];
			subsection = sectionData[measure * 4][3];
		});
		Ppar(
			//check how amplitude is being handled
			ensDataFormatted[measure].collect({arg musData, p;
				Pbind(
					\instrument, \ens_ ++ ~hash,
					\freq, Pseq(musData[0].replace(0, Rest(0))),
					\dur, Pseq(musData[1] * dUnit),
					\sustain, Pseq(musData[2] * dUnit),
					\amp, [1, 0.7, 0.5, 0.3][p],
					\ampBus, preampBusses[0].index,
					\bus, postampBusses[p].index,
					\rel, Pseq(musData[6])
				)
			}) ++
			//check how amplitude and attack are being handled
			accompDataFormatted[measure].collect({arg musData;
				Pbind(
					\instrument, \accomp_ ++ ~hash,
					\freq, Pseq(musData[0].replace(0, Rest(0))),
					\dur, Pseq(musData[1] * dUnit),
					\sustain, Pseq(musData[2] * dUnit),
					\amp, Pseq(musData[3].collect({arg item; [0, 2, 4, 8][item]}) * 0.0125 * 1),
					\ampBus, preampBusses[0].index,
					\bout, Pseq(musData[4].collect({arg index; accompBusses[index].index})),
					\rel, Pseq(musData[5])
				)
			}) ++
			[
				Pbind(
					\instrument, \transport_ ++ ~hash,
					\measure, measure + 1,
					\beat, Pseq([1, 2]),
					\section, section,
					\subsection, subsection,
					\dur, 8 * dUnit
				),
				Pbind(
					\instrument, \click_ ++ ~hash,
					\beat, Pseq([1, 2]),
					\dur, 8 * dUnit
				)
			]
		)
	});
	[patterns, bassData, ampData]
};


//this is a playable pattern based on start measure
~genPlayablePatterns = {arg startMeasure, patterns, preampBusses, accompBusses, postampBusses;
	Ppar(
		[Pseq(patterns[0][startMeasure..], 1)] ++

		patterns[2].collect({arg pattern, p;
			Pmono(\amp_curve_ ++ ~hash,
				\amp, Pseg(Pseq(pattern.slice(nil, 0)[(startMeasure * 16)..], 1), 1 * ~dUnit, \cub),
				\dur, 1 * ~dUnit,
				\bus, preampBusses[p].index
			)
		}) ++
		patterns[1].collect({arg pattern, p;
			Pmono(\bass_mono_ ++ ~hash,
				\freq, Pseq(pattern.slice(nil, 0)[(startMeasure * 16)..], 1),
				\dur, 1 * ~dUnit,
				\ampBus, preampBusses[p + 1].index,
				\bus, postampBusses[4].index
			)
		})
	);
};


//~~~~~~~~~~~~BOUNCE AUDIO~~~~~~~~~~~~
//this bounces the audio for use in another DAW or for practice
~bounceAudio = {arg seed;
	var trackNames, basePath, server, buffers, recDur,
	preampBusses, nextNode, accompBusses, postampBusses,
	synths, prePatterns, playablePatterns, score;

	trackNames = ["part_star", "part_III", "part_II", "part_I", "accomp_II", "accomp_I", "click"];

	basePath = ~dir +/+ ".." +/+ "audio" +/+ "seed_" ++ seed;
	basePath.mkdir;

	server = Server(\nrt_ ++ ~hash,
		options: ServerOptions.new
		.numOutputBusChannels_(7)
		.numInputBusChannels_(0)
	);

	# preampBusses, accompBusses, postampBusses = ~allocBusses.value(s);
	postampBusses = 7.collect({arg index; Bus.new(rate: 'audio', index: index, numChannels: 1, server: server)});
	synths = ~defineSynths.value(s, preampBusses, accompBusses, postampBusses);

	prePatterns = ~genPatterns.value(~musicData[0], ~musicData[1], ~musicData[2], ~musicData[3], ~sectionData,
			preampBusses, accompBusses, postampBusses);

	playablePatterns = ~genPlayablePatterns.value(0, prePatterns, preampBusses, accompBusses, postampBusses);

	recDur = (prePatterns[2][0].size / 8) + 45;
	score = playablePatterns.asScore(duration: recDur, timeOffset: 0.001);
	nextNode = score.score.slice(nil, 1).select({arg msg; msg[0] == 9}).slice(nil, 2).maxItem + 1;

	synths.do({arg synth; score.add([0.0, [\d_recv, synth.asBytes]])});

	4.collect({arg p;
		score.add([0.0, [\s_new, \clip_ ++ ~hash, nextNode, 1, 1, \bin,  accompBusses[p].index, \bus, postampBusses[5].index]]);
		nextNode = nextNode + 1;
	});

	buffers = 7.do({arg track;
		score.add([0.0, [\b_alloc, track, 65536, 1]]);
		score.add([0.0, [\b_write, track, basePath +/+ "tkam_" ++ trackNames[track] ++ ".wav".standardizePath, "WAV", "int16", 0, 0, 1]]);
		score.add([0.0, [\s_new, \disk_out_ ++ ~hash, nextNode, 1, 1, \bufnum, track, \inbus, track]]);
		score.add([recDur, [\n_free, nextNode]]);
		score.add([recDur, [\b_close, track]]);
		score.add([recDur, [\b_free, track]]);
		nextNode = nextNode + 1;
	});

	score.sort;

	score.recordNRT(
		outputFilePath: basePath +/+ "tkam_all" ++ ".wav".standardizePath,
		sampleRate: 44100,
		headerFormat: "WAV",
		sampleFormat: "int16",
		options: server.options,
		duration: recDur
	);

	server.remove;
}
)