'use strict';

var ZeroClipboard = window.ZeroClipboard;

angular.module('insight')
  .directive('whenScrolled', ['$window', function($window) {
    return {
      restric: 'A',
      link: function(scope, elm, attr) {
        var pageHeight, clientHeight, scrollPos;
        $window = angular.element($window);

        var handler = function() {
          pageHeight = window.document.documentElement.scrollHeight;
          clientHeight = window.document.documentElement.clientHeight;
          scrollPos = window.pageYOffset;

          if (pageHeight - (scrollPos + clientHeight) === 0) {
            scope.$apply(attr.whenScrolled);
          }
        };

        $window.on('scroll', handler);
        scope.$on('$destroy', function() {
          return $window.off('scroll', handler);
        });
      }
    };
  }])
  .directive('clipCopy', [function() {
    ZeroClipboard.config({
      moviePath: '../lib/zeroclipboard/ZeroClipboard.swf',
      trustedDomains: ['*'],
      allowScriptAccess: 'always',
      forceHandCursor: true
    });

    return {
      restric: 'A',
      scope: { clipCopy: '=clipCopy' },
      link: function(scope, elm) {
        var clip = new ZeroClipboard(elm);

        clip.on('load', function(client) {
          var onMousedown = function(client) {
            client.setText(scope.clipCopy);
          };

          client.on('mousedown', onMousedown);

          scope.$on('$destroy', function() {
            client.off('mousedown', onMousedown);
            client.unglue(elm);
          });
        });
      }
    };
  }]);