MIDI

systemctl stop firewalld


yum install -y podman

mkdir -p /home/podman/NodeMidi
mkdir -p /home/podman/NodeMidi/html
chown -R 48:48 /home/podman/NodeMidi

systemctl disable firewalld
systemctl stop firewalld

yum install -y epel-release
yum install -y httpd
yum install -y nodejs
yum install -y python38
npm install midi-note
npm install @tonejs/midi
yum install -y wget
# ---
echo "This should already be in the directory where you mount the /node onto "
echo " TO BE DONE : #wget http://photoquesting.com/midi/midi.tar "
echo "TO BE DONE : #tar xvf midi.tar  "
echo "#cp 1.mid example.mid "


mkdir -p /var/www/html/Node
chown -R 48:48 /var/www/html/Node

echo "


const fs=require('fs');

const { Midi } = require('@tonejs/midi')

var note = require('midi-note')


const midiData = fs.readFileSync('example.mid')
const midi = new Midi(midiData)
console.log('Midi read :', midi);
console.log('Midi tracks/notes:', midi.tracks);
for(t in midi.tracks){
        console.log('Track t:', midi.tracks[t]);
        for(n in midi.tracks[t].notes){
                var midiNote=midi.tracks[t].notes[n];
                console.log('note.midi', midiNote.midi);
                console.log('converted:', note(midiNote.midi));
        }
}

" > /node/run_oldie.js


cd /node

echo "-----------------------"
cat info.inf
echo "-----------------------"

((httpd &) | sleep infinity)

podman stop NodeMidi
podman rm -f NodeMidi

podman run --name=NodeMidi -v /home/podman/NodeMidi/html:/var/www/html/ -p 8011:80 -v /home/podman/NodeMidi:/node:Z  -t -d container-registry.oracle.com/os/oraclelinux:8 /bin/bash -c " sleep infinity "


podman exec -i NodeMidi /bin/bash -c "sh /node/install.sh" &

echo "interactive "
echo "podman exec -ti NodeMidi /bin/bash "

//
// Generate midi files
//
const fs=require('fs');
const { Midi } = require('@tonejs/midi')
var note = require('midi-note')

const zeroPad = (num, places) => String(num).padStart(places, '0')

function getFilesizeInBytes(filename) {
    var stats = fs.statSync(filename);
    var fileSizeInBytes = stats.size;
    return fileSizeInBytes;
}


console.log(" Process argv :" , process.argv.length, process.argv );

if(process.argv.length < 3){
        console.log(" use run.js with midi file as argument : node run.js 1.mid [duration]");
        return;
}
var tempo=0;
var inputMidi=process.argv[2];
var txtOutputFile=inputMidi.replace(".mid", ".txt");

var isSmallFile=getFilesizeInBytes(inputMidi) < 120;
console.log(getFilesizeInBytes(inputMidi), isSmallFile);

const midiData = fs.readFileSync(inputMidi)
const midi = new Midi(midiData)
if(isSmallFile ){
        tempo=parseInt(process.argv[3]);
}else{
console.log("---0-0-0--0-0");
console.log("---------------------------------Source tempo: ", midi.header.tempos[0].bpm);
console.log("---0-0-0--0-0");
        tempo=parseInt(midi.header.tempos[0].bpm)*100;
}


//console.log("txtOutputFile", txtOutputFile);

console.log("input", tempo);
if(isNaN(tempo)){
        console.log("Bad tempo", midi.header.tempos);
        return;
}

console.log("------------");

var outnotes=[];
for(t in midi.tracks){
        for(n in midi.tracks[t].notes){
                var midiNote=midi.tracks[t].notes[n];
                var duration=midiNote. durationTicks;
                var _note=note(midiNote.midi);
                var outnote="";
                if(_note.length > 2){
                        outnote=_note.substring(0,1);
                        outnote+=_note.substring(2,3);
                }else{
                        outnote=_note;
                }

//console.log("midiNote duration", duration, 'converted outnote :', outnote,"note()", _note);
                outnotes.push({note:""+outnote,duration:duration});;
        }
}

var output="";
fs.writeFileSync('/var/www/html/Node/index.html', output);

var midiOut = new Midi()
// add a track
var track = midiOut.addTrack();
var timer=0;
var textOutput="";
for(i=0; i < outnotes.length; i++){
        var outnote=outnotes[i];
        var duration=parseInt(outnote.duration)/(tempo);
        var name=outnote.note;
        var note={name:name, time:timer, duration:duration};
        var durationFormat=zeroPad(duration*100, 8);
        var timerFormat=zeroPad(timer*100, 8);
        textOutput+=""+name+":"+timerFormat+":"+durationFormat+" ";
        track = track.addNote(note);
        timer+=duration;
}
//console.log("textOutout", textOutput);

console.log("------------");
console.log(" Parse String/TextFile ");
console.log("------------");


var midiOutFile=new Midi();
var outputTrack = midiOutFile.addTrack();
var textSplit=textOutput.split(" ");
var t=0;
var outTimer=0;
for(t=0; t < textSplit.length; t++){
        var name=textSplit[t].split(":")[0];
        var timer=parseInt(textSplit[t].split(":")[1])/100;
        var duration=parseInt(textSplit[t].split(":")[2])/100;
        var note={name:name, time:timer, duration:duration};
        if(!isNaN(duration) && !isNaN(timer)){
                outputTrack = outputTrack.addNote(note);
        }
}

fs.writeFileSync("/var/www/html/Node/a.mid", new Buffer(midiOutFile.toArray()))
fs.writeFileSync("/var/www/html/Node/"+txtOutputFile, textOutput)
fs.writeFileSync(""+txtOutputFile, textOutput)