var progress = -1;
var progress_index = 0;
var no_change_count = 0;
var status = "";

$(document).ready(function() {
  $('#progressbar').progressbar({ value: 0 });
  init_migration();
});


var poll_interval;

function init_migration() {
  //alert("Sending ajax signal");
  $.get("stathandler.cgi","ajax=init_migration", function(data) {});
  poll_interval = setInterval("poll_progress();", 1000);
}

function poll_progress() {
  $.get("stathandler.cgi","ajax=poll_migration_progress", function(data) {
    //alert("data: "+ data);
    //var new_progress = Math.round(parseFloat(data));
    var data_ar = data.split('|');
    var new_progress = parseFloat(data_ar[0]);
    
    
    
    if (new_progress > progress) {
      no_change_count = 0;
      if (data_ar.length > 1) {
        new_status = data_ar[1];
        
        if (new_status.length > 0 && new_status != status) {
          $(".left").append("done.<br>\n" + new_status);
          status = new_status;
        }
      }
      


      
      progress = new_progress;
      $('#progressbar').progressbar({ value: progress });
      if (progress >= 100) {
        finished();
      }
    } else {
      //no progress since last request -- did something go wrong?
      $.get("stathandler.cgi","ajax=poll_migration_error", function(data) {
        //alert(data);
        if (data.length) {
          $(".left").append(data);
          clearInterval(poll_interval);
        } else
          no_change_count++;
      });
      
      if (no_change_count == 180) {
        finished();
      }
    }
  });
}

function finished() {
  $('#progressbar').progressbar({ value: 100 });
  clearInterval(poll_interval);
  $("#hidden_button").css({visibility: "visible"});
  $(".warning").remove();
}