text: 'use strict';
  
  angular.module('mgcrea.ngStrap.button', [])
  
    .provider('$button', function () {
  
      var defaults = this.defaults = {
        activeClass: 'active',
        toggleEvent: 'click'
      };
  
      this.$get = function () {
        return {defaults: defaults};
      };
  
    })
  
    .directive('bsCheckboxGroup', function () {
  
      return {
        restrict: 'A',
        require: 'ngModel',
        compile: function postLink (element, attr) {
          element.attr('data-toggle', 'buttons');
          element.removeAttr('ng-model');
          var children = element[0].querySelectorAll('input[type="checkbox"]');
          angular.forEach(children, function (child) {
            var childEl = angular.element(child);
            childEl.attr('bs-checkbox', '');
            childEl.attr('ng-model', attr.ngModel + '.' + childEl.attr('value'));
          });
        }
  
      };
  
    })
  
    .directive('bsCheckbox', function ($button, $$rAF) {
  
      var defaults = $button.defaults;
      var constantValueRegExp = /^(true|false|\d+)$/;
  
      return {
        restrict: 'A',
        require: 'ngModel',
        link: function postLink (scope, element, attr, controller) {
  
          var options = defaults;
  
          // Support label > input[type="checkbox"]
          var isInput = element[0].nodeName === 'INPUT';
          var activeElement = isInput ? element.parent() : element;
  
          var trueValue = angular.isDefined(attr.trueValue) ? attr.trueValue : true;
          if (constantValueRegExp.test(attr.trueValue)) {
            trueValue = scope.$eval(attr.trueValue);
          }
          var falseValue = angular.isDefined(attr.falseValue) ? attr.falseValue : false;
          if (constantValueRegExp.test(attr.falseValue)) {
            falseValue = scope.$eval(attr.falseValue);
          }
  
          // Parse exotic values
          var hasExoticValues = typeof trueValue !== 'boolean' || typeof falseValue !== 'boolean';
          if (hasExoticValues) {
            controller.$parsers.push(function (viewValue) {
              // console.warn('$parser', element.attr('ng-model'), 'viewValue', viewValue);
              return viewValue ? trueValue : falseValue;
            });
            // modelValue -> $formatters -> viewValue
            controller.$formatters.push(function (modelValue) {
               // console.warn('$formatter("%s"): modelValue=%o (%o)', element.attr('ng-model'), modelValue, typeof modelValue);
              return angular.equals(modelValue, trueValue);
            });
          }
  
          // model -> view
          controller.$render = function () {
            // console.warn('$render', element.attr('ng-model'), 'controller.$modelValue', typeof controller.$modelValue, controller.$modelValue, 'controller.$viewValue', typeof controller.$viewValue, controller.$viewValue);
            var isActive = !!controller.$viewValue;
            $$rAF(function () {
              if (isInput) element[0].checked = isActive;
              activeElement.toggleClass(options.activeClass, isActive);
            });
          };
  
          // view -> model
          element.bind(options.toggleEvent, function () {
            scope.$apply(function () {
              // console.warn('!click', element.attr('ng-model'), 'controller.$viewValue', typeof controller.$viewValue, controller.$viewValue, 'controller.$modelValue', typeof controller.$modelValue, controller.$modelValue);
              if (!isInput) {
                controller.$setViewValue(!activeElement.hasClass('active'));
              }
              controller.$render();
            });
          });
  
        }
  
      };
  
    })
  
    .directive('bsRadioGroup', function () {
  
      return {
        restrict: 'A',
        require: 'ngModel',
        compile: function postLink (element, attr) {
          element.attr('data-toggle', 'buttons');
          element.removeAttr('ng-model');
          var children = element[0].querySelectorAll('input[type="radio"]');
          angular.forEach(children, function (child) {
            angular.element(child).attr('bs-radio', '');
            angular.element(child).attr('ng-model', attr.ngModel);
          });
        }
  
      };
  
    })
  
    .directive('bsRadio', function ($button, $$rAF) {
  
      var defaults = $button.defaults;
      var constantValueRegExp = /^(true|false|\d+)$/;
  
      return {
        restrict: 'A',
        require: 'ngModel',
        link: function postLink (scope, element, attr, controller) {
  
          var options = defaults;
  
          // Support `label > input[type="radio"]` markup
          var isInput = element[0].nodeName === 'INPUT';
          var activeElement = isInput ? element.parent() : element;
  
          var value;
          attr.$observe('value', function (v) {
            if (typeof v !== 'boolean' && constantValueRegExp.test(v)) {
              value = scope.$eval(v);
            } else {
              value = v;
            }
            controller.$render();
          });
  
          // model -> view
          controller.$render = function () {
            // console.warn('$render', element.attr('value'), 'controller.$modelValue', typeof controller.$modelValue, controller.$modelValue, 'controller.$viewValue', typeof controller.$viewValue, controller.$viewValue);
            var isActive = angular.equals(controller.$viewValue, value);
            $$rAF(function () {
              if (isInput) element[0].checked = isActive;
              activeElement.toggleClass(options.activeClass, isActive);
            });
          };
  
          // view -> model
          element.bind(options.toggleEvent, function () {
            scope.$apply(function () {
              // console.warn('!click', element.attr('value'), 'controller.$viewValue', typeof controller.$viewValue, controller.$viewValue, 'controller.$modelValue', typeof controller.$modelValue, controller.$modelValue);
              controller.$setViewValue(value);
              controller.$render();
            });
          });
  
        }
  
      };
  
    });
  