function ranking_sales_product (widget) {
    "use strict";

    var model = openerp;

    widget.RankingSalesProductWidget = widget.Base.extend({
        template: 'RankingSalesProductTmpl',
        data: [],
        accountInvoice: [],
        invoiceLine: [],
        productProduct: [],
        ranking: [],
        modelId: [],

        events: {
            // 'click canvas': 'showCustomers'
            'click h2': 'showCustomers'
        },
        init: function (parent) {
            this._super(parent, {
                width: 6,
                height: 4
            });
        },
        start: function () {
            var self = this;
            self.fetchInitial();
        },
        fetchInitial: function() {
            var self = this;
            self.$el.block({
                message: null,
                overlayCSS: {
                    backgroundColor: '#FAFAFA'
                }
            });
            self.$el.find('.widget-content.widget-loading').css('display','flex');

            self.fecthInvoice().then(function (accountInvoice) {
                return accountInvoice;
            }).then(function (accountInvoice) {
                self.accountInvoice = accountInvoice;
                return self.fecthInvoiceLine(accountInvoice);
            }).then(function (invoiceLine) {
                self.invoiceLine = invoiceLine;
                return self.fecthProductProduct(invoiceLine);
            }).then(function(productProduct){
                self.productProduct = productProduct;
                return self.fetchGetModelId();
            }).then(function(modelId){
                self.modelId = modelId;
                return self.fetchProductRanking();
            });
        },
        // getModelId
        fetchGetModelId: function() {
            var self = this;
            var defer = $.Deferred();
            var irModelData = new model.web.Model('ir.model.data');
            var getObtjectReference = irModelData.get_func('get_object_reference');

            this.alive(getObtjectReference('product', 'product_normal_form_view')).then(function(results) {
                defer.resolve(results);
            });

            return defer;
        },
        // Obtener factura
        fecthInvoice: function() {
            var self = this;
            var desde = moment().format('YYYY-MM-01');
            var hasta = moment().add(1,'months').format('YYYY-MM-01');
            var defer = $.Deferred();
            var fields = ['id', 'invoice_line', 'date_invoice'];
            var domain = [['type', '=', 'out_invoice'], ['date_invoice', '>=', desde], ['date_invoice', '<', hasta], ['state', 'in', ['open','paid']]];
            var invoice = new model.web.Model('account.invoice');
            invoice.query(fields).filter(domain).all().then(function (results) {
                defer.resolve(results);
            });

            return defer;
        },
        // Obtener linea de la factura
        fecthInvoiceLine: function(accountInvoice) {
            var self = this;
            var defer = $.Deferred();
            var invoice_line = _.flatten(_.map(accountInvoice, function (item) {
                return item.invoice_line;
            }));
            var fields = ['id', 'product_id', 'quantity'];
            var domain = [['id','in', invoice_line]];
            var invoiceLine = new model.web.Model('account.invoice.line');
            invoiceLine.query(fields).filter(domain).all().then(function (results) {
                defer.resolve(results);
            });

            return defer;
        },
        // Obtener Prodcutos
        fecthProductProduct: function (invoiceLine) {
            var self = this;
            var defer = $.Deferred();
            var product_id = _.flatten(_.map(invoiceLine,function (item) {
                return item.product_id[0];
            }));
            var fields = ['id', 'name_template', 'type'];
            var domain = [['id', 'in', product_id]];
            var product = new model.web.Model('product.product');

            product.query(fields).filter(domain).all().then(function (results) {
                defer.resolve(results);
            });

            return defer;
        },
        fetchProductRanking: function() {
            var self = this;
            var itemProduct;
            var itemLine;
            var ranking = [];
            var cat = 0;
            var lineUnik;
            for (var i = 0; i < self.productProduct.length; i++) {
                itemProduct = self.productProduct[i];
                itemLine = self.getInvoiceLine(itemProduct.id);

                // if (itemProduct.type === 'product') {
                if (itemLine.length > 0) {
                    cat = _.reduce(_.map(itemLine, function (map) {
                        return map.quantity
                    }), function (meno,num) {
                        return meno + num
                    }, 0);

                    lineUnik = itemLine.shift();

                    ranking.push({
                        product: itemProduct.name_template,
                        qty: cat,
                        id: lineUnik.product_id[0],
                        type: itemProduct.type
                    });
                }
                // }
            }
            ranking.sort(function(a, b) {
                return b.qty - a.qty
            });

            self.$el.unblock();
            self.$el.find('.widget-content.widget-loading').css('display','none');
            var fecha = new Date();
            var meses = new Array ("Enero", "Febrero", "Marzo", "Abril", "Mayo", "Junio", "Julio", "Agosto", "Septiembre", "Octubre", "Noviembre", "Diciembre");

            self.$el.find('.widget-title').find('span').text("Ranking de productos y servicios del mes de " + meses[fecha.getMonth()]);
            // self.$el.find('.widget-title').find('span').text("Ranking de productos más vendidos del mes de " + meses[fecha.getMonth()]);
            self.ranking = ranking;
            self.fetchChart(ranking);
        },
        // get line
        getInvoiceLine: function (product_id) {
            var self = this;
            return _.flatten(_.filter(self.invoiceLine,function (line) {
                return line.product_id[0] === product_id
            }));
        },
        // Generar Grafico
        fetchChart: function (ranking){
            var self = this;
            var label = [];
            var bodyProducto = [];
            var labelService = [];
            var bodyService = [];
            var rank = 7;
            var item;

            // if (ranking.length < rank && ranking.length > 0)
            //     rank= ranking.length;

            for (var i = 0; i < rank; i++) {
                if (ranking[i]){
                    item = ranking[i];
                }else{
                    item = {};
                    item.product = "N/A";
                    item.qty = 0;
                }
                // if (ranking.length === 0){
                    // item = {};
                    // item.product = "N/A";
                    // item.qty = 0;
                // }
                var name = item.product.split(' ');

                if (name.length === 1) {
                        label.push(name[0]);
                }else{
                    label.push(name[0]+"("+name[name.length-1]+")");
                }
                if (item.type === 'product'){
                    bodyService.push(0);
                    bodyProducto.push(item.qty);
                }
                if (item.type === 'service'){
                    bodyService.push(item.qty);
                    bodyProducto.push(0);
                }
            }

            var chart = new Chart(this.$el.find(".widget-content").find('canvas'), {
                // type: 'line',
                type: 'bar',
                data: {
                    labels: label,
                    datasets: [
                        {
                            label: 'Productos ',
                             borderWidth: 1,
                            backgroundColor: [  '#EF5350', '#EC407A', '#AB47BC', '#7E57C2', '#5C6BC0', '#42A5F5', '#26C6DA', '#26A69A', '#66BB6A', '#9CCC65'],
                            data: bodyProducto,
                        },
                        {
                            label: 'Servicios ',
                             borderWidth: 1,
                            backgroundColor: [  '#EF5350', '#EC407A', '#AB47BC', '#7E57C2', '#5C6BC0', '#42A5F5', '#26C6DA', '#26A69A', '#66BB6A', '#9CCC65'],
                            data: bodyService,
                        }
                    ]
                },
                options: {
                    tooltips: {
                       mode: 'index',
                       intersect: true
                   },
                   legend: {
                       labels: {
                           boxWidth: 10,
                           fontSize: 12,
                       },
                       position: 'left',
                   },
                    layout: {
                        padding: {
                            top: 20,
                            bottom: 0,
                            left: 0,
                            rigth: 0,
                        }
                    },
                }
            });
        },

        showCustomers: function (e) {
            var self = this;
            if (self.ranking.length === 0){
                model.web.notification.do_warn("Atención","Sin datos");
                return
            }
            var hoy = moment().format('YYYY-MM-DD');

            var product_id = _.map(self.ranking,function(map){
                return map.id;
            })
            this.do_action({
                name:"Listado de productos más vendidos",
                type: 'ir.actions.act_window',
                res_model: "product.product",
                views: [[false, 'list'],[self.modelId[1],'form']],
                target: 'current',
                domain: [['id', 'in', product_id]],
                context: {},
            });
        }
    });
}