Map2

// load file:data.csv, clean it and make
// an array of matches as strings:
// 'winner:year:loooser'
function loadCSV(){
    dump.innerHTML="";
    matches=[];
    fetch("data.txt", {cache: "no-cache"})
    .then(function(response) {
        if(response.ok)
            return response.text();
        throw(response.statusText);
        })
    
    .then(function(myTxt) {        
        var lines=myTxt.split('\n');
        for(var i=0;i<lines.length;i++){
            if((lines[i].indexOf('/')==-1)
                &&(lines[i].length >2)){
                var parts=lines[i].split(':');
                var y=parts[0].trim();
                var w=parts[1].trim();
                var l=parts[2].trim();                
                matches.push(w+':'+y+':'+l);
            }
        }
        // sort on winner
        matches.sort();
        for(var i=0;i< lines.length;i++)
            dump.innerHTML+=matches[i]+"\n";
    })
    .catch(function(err) {
         alert(" data er ikke lastet \n"+err);
      });    
}

// convert the string array 'matches' to a suitable
// json format that will work as a Map
function buildJson(){
    dump.innerHTML="";
    if(!matches){
        dump.innerHTML="loadCSV first";
        return;
    }        
    var temp=new Map();
    //console.log(matches.length);
    for(var i=0; i< matches.length; i++){
        var parts=matches[i].split(":");
        var W=parts[0];
        var Y=parts[1];
        var L=parts[2];
        //console.log(W,Y,L);
        if(!temp.has(W))
            temp.set(W,{"finaler":[{"aar":Y,"vs":L}]});
        else            
            temp.get(W).finaler.push({"aar":Y,"vs":L});
    }
    var T='[';
    var tIx=0;
    temp.forEach(function(value,key){
        if(tIx>0)
            T+='\n';
        T+='\n["'+key+'",\n';
        T+=JSON.stringify(value)+'],';
        tIx++;
    });
    T=T.slice(0, -1);
    T+='\n]';
    teamtxt=T;
    dump.innerHTML=teamtxt;
}

// send a txt to python and save it as:teams.json
function saveJson(){
    dump.innerHTML="";
    if(!teamtxt){
        dump.innerHTML="build Json first";
        return;
    }
    console.clear();
    var pythonAdr="storeFile.py";    
    var formData=new FormData();
    formData.append('content',teamtxt);
    formData.append('filename','teams.json');
    fetch(pythonAdr, 
        {
        method: 'PUT',
        body:formData
        })
    .then(function(response){
        return response.text();
    })
   .then(function(myText) {
      console.log(myText);
      dump.innerHTML=myText;
   })
    .catch(function(err) {
        dump.innerHTML=
            "-error-: fila,teams.json, er ikke lagret \n"+err;
    });    
}

function loadJson(){
    dump.innerHTML="";
    fetch("teams.json", {cache: "no-cache"})
    .then(function(response) {
        if(response.ok)
            return response.json();
        throw(response.statusText);
        })
    
    .then(function(myjson) {        
        teams =new Map(myjson);
        var T="";
        teams.forEach(function(value,key){
            T+=key+":"+JSON.stringify(value)+"\n";
        });
        dump.innerHTML=T;
    })
    .catch(function(err) {
         dump.innerHTML=
            "fila,teams.json, er ikke lastet \n"+err;
      });    
}