var hash = window.location.hash;
console.log (hash);
var d = new Date();
var options="<option>Please Select...</option>";
for (var i=0;  i<27; i++) {
    var currentDate = new Date(d-i*60*60*24*1000);
    var option = currentDate.getFullYear()+"-"+(currentDate.getMonth()+1)+"-"+currentDate.getDate()
    options += "<option>"+option+"</option>\n";
}
document.getElementById("selector").innerHTML = options;

var dateString = d.getFullYear() + "-" + (d.getMonth()+1) + "-" + d.getDate();    
if (hash!="") {
    dateString = hash.substring(1);
}
fetch('/fileserver/log/data/data_'+dateString+'.txt')
.then(response => {
    // handle the response
    if (response.status == 404) {
        alert("no log data available for "+dateString);
    }
    response.text()
    .then( result => {
        var lines = result.split("\n");
        var trace = {
        x: [],
        y: [],
        type: 'scatter'
        };

var timex = 1;
        for (let line of lines) {
            {
                console.log(line);
                var value = line.split("\t")[3];
                var time  = line.split("\t")[0];
                console.log("> "+time+" "+value+"\n");
                if (value<1000) {
                    trace.x.push(timex);
                    timex += 1;
                    trace.y.push(value);
                }
            }
        }
        console.log(trace);
        var data = [trace];
        Plotly.newPlot('chart', data);
    });
}).catch((error) => {
    // handle the error
    console.log(error);
alert("test");
});