require('./idealsteps');

module.exports = {

  name: 'steps',

  options: {
    stepsContainer: '.idealsteps-container',
    stepsOptions: {}
  },

  methods: {

    // @extend
    _init: function() {
      this._buildSteps();
    },

    // @extend
    _validate: function() {

      var self = this;

      this._updateSteps();

      if ($.idealforms.hasExtension('idealAjax')) {
        $.each($.idealforms._requests, function(key, request) {
          request.done(function(){ self._updateSteps() });
        });
      }
    },

    // @extend
    focusFirstInvalid: function(firstInvalid) {

      var self = this;

      this.$stepsContainer.idealsteps('go', function() {
        return this.$steps.filter(function() {
          return $(this).find(firstInvalid).length;
        }).index();
      });
    },

    _buildSteps: function() {

      var self = this, options
        , hasRules = ! $.isEmptyObject(this.opts.rules)
        , counter = hasRules
          ? '<span class="counter"/>'
          : '<span class="counter zero">0</span>';

      options = $.extend({}, {
        buildNavItems: function(i){ return 'Step '+ (i+1) + counter }
      }, this.opts.stepsOptions);

      this.$stepsContainer = this.$form.closest(this.opts.stepsContainer).idealsteps(options);
    },

    _updateSteps: function() {

      var self = this;

      this.$stepsContainer.idealsteps('_inject', function() {

        var idealsteps = this;

        this.$navItems.each(function(i) {
          var invalid = idealsteps.$steps.eq(i).find(self.getInvalid()).length;
          $(this).find('span').text(invalid).toggleClass('zero', ! invalid);
        });
      });
    },

    // @extend
    addRules: function() {
      this.firstStep();
    },

    // @extend
    toggleFields: function() {
      this._updateSteps();
    },

    // @extend
    removeFields: function() {
      this._updateSteps();
    },

    goToStep: function(idx) {
      this.$stepsContainer.idealsteps('go', idx);
    },

    prevStep: function() {
      this.$stepsContainer.idealsteps('prev');
    },

    nextStep: function() {
      this.$stepsContainer.idealsteps('next');
    },

    firstStep: function() {
      this.$stepsContainer.idealsteps('first');
    },

    lastStep: function() {
      this.$stepsContainer.idealsteps('last');
    }
  }

};