<main ng-app="formApp" ng-controller="formCtrl" ng-cloak>
  <div class="container">
    <div class="row">
      <div class="col-md-12">&nbsp;</div>
    </div>
    <div class="row">
      <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12">
        <h2>AngularJS 1.5.x Multi-Step Form</h1>
      </div>
    </div>
    <form name="multiStepForm" class="form-validation" role="form" novalidate>
      <div class="animate-switch-container" ng-switch on="stage" ng-class="{forward: direction, backward:!direction}">
        <div class="animate-switch" ng-switch-default>
          <div class="row">
            <div class="col-md-12">
              <p>Welcome to the form.</p>
              <button type="button" class="btn btn-primary" ng-click="next('stage1')">Start</button>
            </div>
          </div>
        </div>
        <div class="animate-switch" ng-switch-when="stage1">
          <div class="row">
            <div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
              <div class="form-group">
                <label for="tb-fname">First Name:</label>
                <input type="text" class="form-control" id="tb-fname" name="firstName" ng-maxlength="250" ng-model="formParams.firstName" required ng-class="{'input-error': formValidation && multiStepForm.firstName.$error.required}" >
                <span ng-show="multiStepForm.firstName.$error.maxlength">
                  Max character length reached.
                </span>
              </div>
            </div>
          </div>
          <div class="row">
            <div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
              <div class="form-group">
                <label for="tb-lname">Last Name:</label>
                <input type="text" class="form-control" id="tb-lname" name="lastName" ng-maxlength="250" ng-model="formParams.lastName" ng-class="{'input-error': formValidation && multiStepForm.lastName.$error.required}" required>
                <span ng-show="multiStepForm.lastName.$error.maxlength">
                  Max character length reached.
                </span>
              </div>
            </div>
          </div>
          <div class="row">
            <div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
              <div class="form-group">
                <label for="tb-email">Email:</label>
                <input type="email" class="form-control" id="tb-email" name="email" ng-maxlength="100" ng-model="formParams.email" ng-class="{'input-error': formValidation && multiStepForm.email.$error.required}" ng-model-options="{ updateOn: 'blur' }" required>
                <span ng-show="multiStepForm.email.$error.email">
                  Incorrect email format.
                </span>
                <span ng-show="multiStepForm.email.$error.maxlength">
                  Max character length reached.
                </span>
              </div>
            </div>
          </div>
          <div class="row">
            <div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
              <div class="form-group">
                <label for="tb-cc-email">CC:</label>
                <input type="email" class="form-control" id="tb-cc-email" name="ccEmail" ng-maxlength="100" ng-model="formParams.ccEmail" ng-class="{'input-error': formValidation && multiStepForm.ccEmail.$error.email}" ng-model-options="{ updateOn: 'blur' }">
                <span ng-show="multiStepForm.ccEmail.$error.email">
                  Incorrect email format.
                </span>
                <span ng-show="multiStepForm.ccEmail.$error.maxlength">
                  Max character length reached.
                </span>
              </div>
            </div>
            <div class="col-xs-1 col-sm-1 col-md-1 col-lg-1">
              <button type="button" class="btn btn-xs btn-warning" ng-click="addCCEmail()">Add</button>
            </div>
          </div>
          <div class="row">
            <div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
              <div ng-repeat="cc in formParams.ccEmailList">
              </div>
            </div>
          </div>
          <button type="button" class="btn btn-info" ng-click="back('')">Back</button>
          <button type="button" class="btn btn-primary" ng-click="next('stage2')">Next</button>
        </div>
        <div class="animate-switch" ng-switch-when="stage2">
          <div class="form-group">
            <label for="ta-body">Message Body:</label>
            <textarea class="form-control" rows="5" id="ta-body" ng-model="formParams.messageBody"></textarea>
          </div>
          <button type="button" class="btn btn-info" ng-click="back('stage1')">Back</button>
          <button type="button" class="btn btn-primary" ng-click="next('stage3')">Next</button>
        </div>
        <div class="animate-switch" ng-switch-when="stage3">
          <h3>Summary</h3>
          <p>First name: {{formParams.firstName}}</p>
          <p>Last name: {{formParams.lastName}}</p>
          <p>Email: {{formParams.email}}</p>
          <p>Message Body: {{formParams.messageBody}}</p>
          <button type="button" class="btn btn-info" ng-click="back('stage2')">Back</button>
          <button type="button" class="btn btn-warning" ng-click="submitForm()">Submit</button>
        </div>
        <div class="animate-switch" ng-switch-when="success">
          <div class="success-wrap">
            <h2 class="confirmation-text">Thank you</h2>
            <p>Your message has been sent.<br>You should receive a confirmation email.</p>
            <div><button type="button" class="btn btn-success" ng-click="reset()" >Send Another</button></div>
          </div>
        </div>
        <div class="animate-switch" ng-switch-when="error" >
          <div class="error-wrap">
            <h2 class="confirmation-text">Error</h2>
            <p>There was an error when attempting to submit your request.<br>Please try again later.</p>
            <p><strong>*This will always error until a web service URL is set.*</strong></p>
            <div><button type="button" class="btn btn-danger" ng-click="reset()" >Try again</button></div>
          </div>
        </div>
      </div>
    </form>
    <div class="row">
      <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12">&nbsp;</div>
    </div>
    <div class="row">
      <div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
        <button type="button" class="btn btn-sm btn-info" ng-click="toggleJSONView = !toggleJSONView" >Toggle Object</button>
        <div>&nbsp;</div>
        <pre ng-show="toggleJSONView"> {{ formParams | json }}</pre>
      </div>
    </div>
    <div class="row">
      <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12">&nbsp;</div>
    </div>
    <div class="row">
      <div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
        <button type="button" class="btn btn-sm btn-info" ng-click="toggleFormErrorsView = !toggleFormErrorsView" >Toggle Form Errors</button>
        <div>&nbsp;</div>
        <ul ng-show="toggleFormErrorsView">
          <li ng-show="multiStepForm.$invalid">Form Invalid</li>
          <li ng-show="multiStepForm.$valid">Form Valid</li>
          <li ng-repeat="(key, errors) in multiStepForm.$error track by $index"> <strong>{{ key }}</strong> errors
            <ul>
              <li ng-repeat="e in errors">{{ e.$name }} has an error: <strong>{{ key }}</strong>.</li>
            </ul>
          </li>
        </ul>
      </div>
    </div>
  </div>
</main>

/*------>>> Animations <<<-----*/
.fade {
  opacity: 0;
  -webkit-transition: opacity 0.25s ease-in;
  -moz-transition: opacity 0.25s ease-in;
  -o-transition: opacity 0.25s ease-in;
  -ms-transition: opacity 0.25s ease-in;
  transition: opacity 0.25s ease-in;
  transition-delay: 0.25s;
}
.fade.in{
  opacity: 1;
}

.animate-switch-container {
  position:relative;
  overflow: hidden;
  height: 500px;
  width: 550px;
  border: solid 1px black;
  box-shadow: 6px 6px 15px gray;
  padding:10px;
  border-radius:10px;

  background-size: 50px 50px;
}
.animate-switch{
  padding:10px;
  width: 100%;
}
.animate-switch.ng-animate {
  -webkit-transition:all 0.5s;
  transition:all 0.5s;
  position:absolute;

}
/* hide leaving slide  */
/* show */
.animate-switch.ng-leave{
  left:0;
}
/* hide */
.forward .animate-switch.ng-leave.ng-leave-active{
  left:-100%;
}
.backward .animate-switch.ng-leave.ng-leave-active{
  left: 100%;
}
/* show entering slide  */
/* hide */
.forward .animate-switch.ng-enter {
  left:100%;
}
.backward .animate-switch.ng-enter {
  left:-100%;
}
/* show */
.animate-switch.ng-enter.ng-enter-active {
  left:0;
}


/*-----------------------------------*/
/*------>>> Validation <<<-----------*/
/*-----------------------------------*/

.form-validation input.ng-invalid-maxlength {
  border:2px solid #D9272D;
}


.length-error {
  color: #D9272D;
  display: block;
  font-size: 12px;
  opacity: .8;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
  position: relative;
  line-height: 18px;
  padding: 10px 10px 5px 10px;
  margin: -25px 0 20px 0;
  background-color: #E3E3E3;
  border-radius: 0 0 5px 5px;
}

.input-error {
  border: 2px solid #D9272D;
}

/*-----------------------------------*/
/*------->>> FORM STYLES <<<---------*/
/*-----------------------------------*/

.note {
  display: block;
  font-size: 12px;
  opacity: .8;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
  position: relative;
  line-height: 18px;
}

.note-input {
  padding: 10px 10px 5px 10px;
  margin: -25px 0 20px 0;
  background-color: #E3E3E3;
  border-radius: 0 0 5px 5px;
}

.note-input-error, .required-error-banner {
  background-color: rgba(217, 39, 45, 0.5);
}

/*-----------------------------------*/
/*----------->>> HELPERS <<<-------------*/
/*-----------------------------------*/

/*
  Allow angular.js to be loaded in body, hiding cloaked elements until
  templates compile.  The !important is important given that there may be
  other selectors that are more specific or come later and might alter display.
 */
[ng\:cloak], [ng-cloak], .ng-cloak {
    display: none;
}

'use strict';

angular.module('formApp', [
  'ngAnimate'
]).
controller('formCtrl', ['$scope', '$http', function($scope, $http) {
  $scope.formParams = {};
  $scope.stage = "";
  $scope.formValidation = false;
  $scope.toggleJSONView = false;
  $scope.toggleFormErrorsView = false;
  
  $scope.formParams = {
    ccEmail: '',
    ccEmailList: []
  };
  
  // Navigation functions
  $scope.next = function (stage) {
    //$scope.direction = 1;
    //$scope.stage = stage;
    
    $scope.formValidation = true;
    
    if ($scope.multiStepForm.$valid) {
      $scope.direction = 1;
      $scope.stage = stage;
      $scope.formValidation = false;
    }
  };

  $scope.back = function (stage) {
    $scope.direction = 0;
    $scope.stage = stage;
  };
  
  // CC email list functions
  $scope.addCCEmail = function () {
    $scope.rowId++;

    var email = {
      email: $scope.formParams.ccEmail,
      row_id: $scope.rowId
    };

    $scope.formParams.ccEmailList.push(email);

    $scope.formParams.ccEmail = '';
  };

  $scope.removeCCEmail = function (row_id) {
    for (var i = 0; i < $scope.formParams.ccEmailList.length; i++) {
      if ($scope.formParams.ccEmailList[i].row_id === row_id) {
        $scope.formParams.ccEmailList.splice(i, 1);
        break;
      }
    }
  };
  
  
  // Post to desired exposed web service.
  $scope.submitForm = function () {
    var wsUrl = "someURL";

    // Check form validity and submit data using $http
    if ($scope.multiStepForm.$valid) {
      $scope.formValidation = false;

      $http({
        method: 'POST',
        url: wsUrl,
        data: JSON.stringify($scope.formParams)
      }).then(function successCallback(response) {
        if (response
          && response.data
          && response.data.status
          && response.data.status === 'success') {
          $scope.stage = "success";
        } else {
          if (response
            && response.data
            && response.data.status
            && response.data.status === 'error') {
            $scope.stage = "error";
          }
        }
      }, function errorCallback(response) {
        $scope.stage = "error";
        console.log(response);
      });
    }
  };
  
  $scope.reset = function() {
    // Clean up scope before destorying
    $scope.formParams = {};
    $scope.stage = "";
  }
}]);