/*
 * @constructor
 */
jt.block.Cart = function () {
    this.items_ = [];

    this.itemElements_ = $('.cart__item');
    this.itemElements_.each($.proxy(function (index, item) {
        this.items_.push(new jt.block.CartItem(item, this));
    }, this));

    this.itemElements_.on('updatePrice', $.proxy(function (event, data) {
        for (var i = 0, l = this.items_.length; i < l; i++) {
            if (data.root === this.items_[i].root) {
                this.items_[i].price_cost_ = this.items_[i].root.find('.cart__cell_cost .price__value').text();
                break;
            }
        }

        this.sumCost_();
    }, this))

    this.sumCost_();
}


/*
 * @constructor
 */
jt.block.CartItem = function (item, cart) {

    var root, cart;
    this.cart = cart;
    this.root = root = $(item);
    this.isDelay_ = $(item).data('delay') === true ? true : false;
    this.remover_ = root.find('.cart__item-remover');

    this.price_cost_ = root.find('.cart__cell_cost .price__value').text();

//    this.remover_.on('click', $.proxy(this.remove_, this));


    new jt.block.ProductPriceCalculator(this.root);
};


/* constants */
jt.block.Cart.ADD_ROUBLE_SIGN = '<span class="rur"> руб.</span>';
jt.block.Cart.ADD_PRICE_CONTAINER = '<span class="price__value"></span>';
jt.block.Cart.HIDE_CLASS = 'not-display';


/*
 * count number of items
 * @private
 */
jt.block.Cart.prototype.count_ = function () {
    var words = ['товар', 'товара', 'товаров'];

    this.countReady_ = 0;
    this.countDelay_ = 0;

    for (var i = 0, l = this.items_.length; i < l; i++) {
        if (this.items_[i].isDelay_) {
            this.countDelay_++;
        } else {
            this.countReady_++;
        }
    }

    $('.cart__tabs label:first-child .extra').text(' ' + this.countReady_);
    $('.cart__num').text(this.countReady_);
    $('.cart__num-word').text(' ' + jt.utils.declension(this.countReady_, words));
    $('.cart__tabs label:last-child .extra').text(' ' + this.countDelay_);
}


/*
 * Sum and replace cost_total
 * @private
 */
jt.block.Cart.prototype.sumCost_ = function () {
    var cost_total;
    cost_total = 0;

    for (var i = 0, l = this.items_.length; i < l; i++) {
        if (!this.items_[i].isDelay_) {
            cost_total += this.items_[i].getCost();
        }
    }

    $('.cart__total-price')
        .find('.price').empty()
        .append(jt.block.Cart.ADD_PRICE_CONTAINER)
        .find('.price__value')
        .text(jt.utils.format_number(cost_total))
        .after(jt.block.Cart.ADD_ROUBLE_SIGN);
}


jt.block.CartItem.prototype.getCost = function () {
    return jt.utils.clean_to_number(this.price_cost_);
}


/*
 * @constructor
 */
jt.block.ProductPriceCalculator = function (root) {
    var quantity;

    this.parent_ = root;
    this.resultPriceElem_ = this.parent_.find('.cart__cell_cost .price__value');
    this.priceElem_ = this.parent_.find('.cart__cell_price-element .price__value');
    this.initialPrice_ = jt.utils.clean_to_number(this.priceElem_.text());

    quantity = this.parent_.find('.cart__cell_input');
    this.input_ = new jt.block.IntegerInput(quantity, 9999, quantity.data('min'), undefined, true);
    this.input_.addEventListener(jt.block.IntegerInput.EventType.CHANGE, $.proxy(function () {
        this.calculate_(this.input_.getValue());
        this.parent_.trigger('updatePrice', {root: this.parent_});
    }, this));


    this.calculate_(this.input_.getValue());
}


/**
 * Calculating price by quantity change
 * @param {number} quantity Of products
 * @private
 */
jt.block.ProductPriceCalculator.prototype.calculate_ = function (quantity) {
    var discount, price, resultPrice;

    price = this.initialPrice_;
    resultPrice = price * quantity;
    this.resultPriceElem_.text(jt.utils.format_number(resultPrice));
    this.priceElem_.text(jt.utils.format_number(price));
}


$(document).on('ready', function () {
    new jt.block.Cart();

    // $('.sidebar__inner').affix();

    $('.cart__item-remover').click(function () {
        var product_id = $(this).data('id');
        var delete_data = {'action': 'delete', 'id': product_id};
        var item_index = $(this).parent().parent('.cart__item').index('tr');
        $('ul.basket__list li:nth-child(' + item_index + ')').remove();
        var items_count = $('ul.basket__list li').length;
        $('.products_counter a').text('Корзина (' + items_count + ')');
        $(this).parent().parent('.cart__item').remove();
        $.ajax({
            type: 'GET',
            url: "index.php",
            data: delete_data,
            success: function(){
                window.location.reload();
            }
        });
    });
});