;(function ( $, window, document, undefined ) {
    'use strict';

    var Jelect,
        pluginName = 'jelect',
        dataPlugin = 'plugin_' + pluginName,
        defaults = {
            wrapper: '.jelect',
            input: '.jelect-input',
            current: '.jelect-current',
            optionsWrapper: '.jelect-options',
            option: '.jelect-option',
            activeClass: 'jelect_state_active',
            optionsWrapperActiveClass: 'jelect-options_state_active',
            optionActiveClass: 'jelect-option_state_active'
        };

    Jelect = function ( element, options ) {
        this.element = element;
        this.$element = $( element );
        this.options = $.extend( defaults, options );
        this._defaults = defaults;

        this.init();
    };

    Jelect.prototype = {

        init: function ( options ) {

            var that = this,
                opts = $.extend( that.options, options ),
                $select = that.$element,
                $selectOptions = $( opts.optionsWrapper );

            $select
            // Open a dropdown
                .children( opts.current )
                .on( 'click.jelectCurrentClick', function () {
                    var $this = $( this ),
                        $thisSelect = $this.closest( opts.wrapper ),
                        $thisSelectOptions = $this.siblings( opts.optionsWrapper );

                    $thisSelectOptions.toggleClass( opts.optionsWrapperActiveClass );
                    $selectOptions.filter( ':visible' ).not( $thisSelectOptions ).removeClass( opts.optionsWrapperActiveClass );

                    $thisSelect.toggleClass( opts.activeClass );
                    $select.not( $thisSelect ).removeClass( opts.activeClass );
                })

                // Select an option
                .siblings( opts.optionsWrapper )
                .on( 'click.jelectOptionClick', opts.option, function () {
                    var $this = $( this ),
                        currentVal = $this.data('val'),
                        currentText = $this.text();

                    $this
                    // Activate a selected option
                        .addClass( opts.optionActiveClass )
                        .siblings()
                        .removeClass( opts.optionActiveClass )

                        // Hide a dropdown
                        .closest( opts.optionsWrapper )
                        .removeClass( opts.optionsWrapperActiveClass )

                        // Deactivate a Jelect wrapper
                        .closest( opts.wrapper )
                        .removeClass( opts.activeClass )

                        // Set a current text
                        .children( opts.current )
                        .text( currentText )

                        // Change the value of input and fire trigger `change`
                        .siblings( opts.input )
                        .val( currentVal )
                        .attr( 'data-text', currentText )
                        .trigger( 'change' );
                });

            // Hide dropdowns when click outside
            $( document ).on( 'click.jelectOutsideClick', function ( e ) {
                var $target = $( e.target );

                if (
                    !$target.is( opts.wrapper ) &&
                    !$target.closest( opts.wrapper ).length &&
                    $selectOptions.filter( ':visible' ).length
                ) {
                    $selectOptions
                        .removeClass( opts.optionsWrapperActiveClass )
                        .closest( opts.wrapper )
                        .removeClass( opts.activeClass );
                }
            });

        },

        destroy: function () {
            this.$element.data( dataPlugin, null );
        }
    };

    $.fn[ pluginName ] = function ( options ) {
        return this.each(function () {
            if ( !$( this ).data( dataPlugin ) ) {
                $( this ).data( dataPlugin, new Jelect( this, options ) );
            }
        });
    };

})( jQuery, window, document );