var fileobj;
function file_dropped(e) 
{
        e.preventDefault();
        fileobj = e.dataTransfer.files[0];
        upload_file(fileobj);
}

function file_explorer() {
        document.getElementById('uploadfile').click();
        document.getElementById('uploadfile').onchange = function()
        {
                fileobj = document.getElementById('uploadfile').files[0];
                upload_file(fileobj);
        };
}

function copytoclipboard() 
{
        var elm = document.getElementById("divresponse");
        var selection = window.getSelection();
        var range = document.createRange();
        range.selectNodeContents(elm);
        selection.removeAllRanges();
        selection.addRange(range);
        document.execCommand("Copy");
}

function upload_file(file_obj) 
{
        var divresponse = document.getElementById('divresponse');
        divresponse.innerHTML = "Uploading file..." ;
        const request = async () => {
                var response =  await fetch('/index.php', {
                        method: 'PUT',
                        body: file_obj
                });
                var text = await response.text();
                console.log(text);
                divresponse.innerHTML = text ;
                document.getElementById('copytoclipboard').style.visibility = "visible";

        }
        request();

}


function change_color_ondrag(event)
{
        if (event === "ondragenter") 
        {
                var element = document.getElementById('dragzone');
                element.classList.add("dragover");
        }
        else if (event === "ondragleave")
        {
                var element = document.getElementById('dragzone');
                element.classList.remove("dragover");
        }
}