.component(upload-file, {
  height: 34px;
  display: flex;
  .part(fileinput-area, {
    position: relative;
    overflow: hidden;
    flex: 1;

    .part(fileupload, {
      opacity: 0;
      position: absolute;
      z-index: 1;
    });
  });

  .part(button, {
    margin-left: 20px;
  });
});

export default ngModule => {
  ngModule.run(function(formlyConfig) {
    formlyConfig.setType({
      name: 'upload-file',
      template: require('./upload-file.html'),
      extends: 'azBase',
      data: {
        styles: require('./upload-file.less')
      },
      defaultOptions: {
        data: {
          noTouchy: true
        }
      },
      controller: /* @ngInject */ function($scope, upload, $sce, notify, NotifyInterceptor, _) {
        $scope.startUpload = startUpload;
        $scope.options.data.startUpload = startUpload;
        $scope.buttonContents = $sce.trustAsHtml($scope.to.uploadButtonHtml);

        function startUpload() {
          if (!$scope.fileInputEl.val()) {
            notify.warning('File Not Uploaded', 'Please choose a file to upload');
            return undefined;
          }
          $scope.uploading = upload({
            url: $scope.to.url,
            method: 'POST',
            headers: {
              'Accept': '*/*'
            },
            data: {
              file: $scope.fileInputEl
            },
            azData: {
              notifications: {error: null},
              analytics: {
                eventType: 'file-upload',
                category: 'FILE_UPLOAD'
              }
            }
          }).then(function successHandler(response) {
            // Remove any previous errors
            $scope.to.fileUploadErrors = null;
            var successMessage = $scope.to.successMessage;
            if (_.isFunction(successMessage)) {
              successMessage = successMessage(response);
            }
            if (successMessage !== null) {
              notify.success(successMessage || 'File uploaded successfully');
            }
            if ($scope.to.onSuccess) {
              return $scope.to.onSuccess(response, $scope.options, $scope);
            } else {
              return response;
            }
          }, function errorHandler(response) {
            if (response.data && _.isArray(response.data) && !_.isUndefined(response.data[0].lineNumber)) {
              $scope.to.fileUploadErrors = response.data;
              var errorMessage = $scope.to.errorMessage;
              if (_.isFunction(errorMessage)) {
                errorMessage = errorMessage(response);
              }
              if (errorMessage) {
                notify.error('Upload failed', errorMessage);
              }
            } else {
              delete response.config.azData.notifications.error;
              NotifyInterceptor.responseError(response);
            }
            throw response;
          });

          return $scope.uploading;
        }
      },
      link: function(scope, el) {
        var int = setInterval(function() {
          scope.fileInputEl = el.find('input[type=file]');
          if (scope.fileInputEl.length) {
            clearInterval(int);
          }
        }, 10);
      }
    });
  });
};

<div class="upload-file no-padding">

  <div class="upload-file__fileinput-area">
    <input class="form-control --exception upload-file__fileinput-area__fileupload"
           name="{{::id}}"
           type="file"
           data-sequential-uploads="true"
           ng-model="fileToUpload"
           az-file-upload-input="fileUploadName">
    <input class="form-control --exception"
           placeholder="{{::to.placeholder}}"
           type="text"
           value="{{fileUploadName}}"
           data-sequential-uploads="true"
           disabled="disabled">
  </div>
  <button
    class="upload-file__button btn btn-default az-btn hide-when-readonly"
    ng-click="startUpload()"
    ng-if="!to.noButton"
    az-loading-button="uploading"
    ng-disabled="!fileUploadName">
    <span ng-bind-html="::buttonContents"></span>
  </button>

</div>

export default ngModule => {
  ngModule.directive('azFileUploadInput', function() {

    return {
      restrict: 'A',
      require: 'ngModel',
      scope: {
        azFileUploadInput: '='
      },
      link(scope, element) {
        element.on('change', function(e) {
          if (!e.target.files || !e.target.files[0]) {
            return;
          }
          scope.azFileUploadInput = e.target.files[0].name;
          scope.$apply();
        });
      }
    };
  });
};