//this tutorial explains how to use the maxiEnv

#include "AudioTools.h"
#include "AudioTools/AudioLibs/MaximilianDSP.h"
#include "audio/cello_open_string_bowed.h"

// Arduino output
I2SStream out;
Maximilian maximilian(out);

// Maximilian
maxiSample sound1;
maxiOsc timer,snarePhase; //and a timer
maxiEnv envelope;//this is going to be an envelope
int currentCount,lastCount,playHead,
sequence[16]={1,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0}; //This is the sequence for the kick
int sampleTrigger;
float sampleOut;

void setup() {//some inits
    // setup logging
    Serial.begin(115200);
    AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);

    // setup audio output
    auto cfg = out.defaultConfig(TX_MODE);
    out.begin(cfg);
    maximilian.begin(cfg);
	
    //YOU HAVE TO PROVIDE THE SAMPLES....    
	//sound1.load("/Users/mickgrierson/Documents/audio/68373__juskiddink__Cello_open_string_bowed.wav");//load in your samples. Provide the full path to a wav file.
	sound1.setSample(cello_open_string_bowed_vector);
	
	Serial.println(sound1.getSummary().c_str());//get info on samples if you like.
}

void play(float *output) {//this is where the magic happens. Very slow magic.
	
	currentCount=(int)timer.phasor(8);//this sets up a metronome that ticks 8 times a second

	if (lastCount!=currentCount) {//if we have a new timer int this sample, play the sound		
		sampleTrigger=sequence[playHead%16];
		playHead++;//iterate the playhead
		lastCount=0;//reset the metrotest
	}
	
	//the envelope we're using here is an AR envelope.
	//It has an input (which in this case is a sound)
	//It has an attack coefficient, a hold val (in samples)
	//and a release coefficient. Finally, it has a trigger input.
	//If you stick a 1 in the trigger input, it retriggers the envelope
	sampleOut=envelope.ar(sound1.playAtSpeed(1.0), 0.1, 0.9999, 1, sampleTrigger); //
		
	output[0]=sampleOut;//left channel
	output[1]=sampleOut;//right channel
	
	sampleTrigger = 0;//set trigger to 0 at the end of each sample to guarantee retriggering.

}

// Arduino loop
void loop() {
    maximilian.copy();
}