var PerformEditsDialog = {};

PerformEditsDialog.launch = function(logged_in_username) {
  var self = this;
  var elmts = this._elmts;
  var frame = this.frame;

  console.log(this.missingSchema);
  if (this.missingSchema) {
    return;
  }

  this._level = DialogSystem.showDialog(frame);

  var dismiss = function() {
    DialogSystem.dismissUntil(self._level - 1);
  };

  elmts.loggedInUsername.text(logged_in_username);
  
  frame.find('.cancel-button').click(function() {
     dismiss();
  });

   elmts.performEditsButton.click(function() {
    Refine.postProcess(
       "wikidata",
       "perform-wikibase-edits",
       {},
       { strategy : "SNAK_QUALIFIERS",
         action: "MERGE",
         summary: elmts.editSummary.val(),
       },
       { includeEngine: true, cellsChanged: true, columnStatsChanged: true },
       { onDone:
          function() {
           dismiss();
          }
       });
  });
};

PerformEditsDialog._updateWarnings = function(data) {
   var warnings = data.warnings;
   var mainDiv = this._elmts.warningsArea;

   // clear everything
   mainDiv.empty();

   var table = $('<table></table>').appendTo(mainDiv);
   for (var i = 0; i != warnings.length; i++) {
      var rendered = WarningsRenderer._renderWarning(warnings[i]);
      rendered.appendTo(table);
   }   
}

PerformEditsDialog.checkAndLaunch = function () {
  var self = this;
  this.frame = $(DOM.loadHTML("wikidata", "scripts/dialogs/perform-edits-dialog.html"));
  this._elmts = DOM.bind(this.frame);
  this.missingSchema = false;

   ManageAccountDialog.ensureLoggedIn(function(logged_in_username) {
       if (logged_in_username) {
            $.post(
                "command/wikidata/preview-wikibase-schema?" + $.param({ project: theProject.id }),
                { engine: JSON.stringify(ui.browsingEngine.getJSON()) },
                function(data) {
                   if(data['status'] != 'error') {
                       PerformEditsDialog._updateWarnings(data);
                       PerformEditsDialog.launch(logged_in_username);
                   } else {
                       SchemaAlignmentDialog.launch(
                           PerformEditsDialog.checkAndLaunch);
                   }
                },
                "json"
            );
       }
   });
};