function monthly_purchases(widget) {
    "use strict";

    var model= openerp;

    widget.MonthlyPurchasesWidget = widget.Base.extend({
        template: 'MonthlyPurchases',
        accountVoucher:[],
        accountInvoice:[],
        currencyRate :[],
        resCompany:[],

        events: {
            'click a': 'showCustomers',
            'click h2': 'showCustomers',
        },
        init: function (parent) {
            this._super(parent, {
                width : 3,
                height: 2
            });
        },
        start: function () {
            var self = this;
            self.fetchInitial();
        },
        fetchInitial: function(){
            var self = this;
            self.$el.find('#morosidad').block({
                message: null,
                overlayCSS: {
                    backgroundColor: '#FAFAFA'
                }
            });
            self.$el.find('.widget-content.widget-loading').css('display','flex');
            self.fetchAccountVoucher().then(function (accountVoucher) {
                return accountVoucher;
            }).then(function (accountVoucher) {
                self.accountVoucher = accountVoucher;
                return self.fetchAccountInvoice(accountVoucher);
            }).then(function(accountInvoice){
                self.accountInvoice = accountInvoice;
                return self.fetchCurrency();
            }).then(function(currencyRate){
                self.currencyRate = currencyRate;
                return self.fetchResCompany();
            }).then(function(resCompany){
                self.resCompany = resCompany;
                return self.fetchResCurrecy(resCompany);
            }).then(function(resCurrecy){
                self.resCurrecy = resCurrecy;
                return self.fetchReduceVoucher();

            });
        },
        // Account Voucher Pagos a facturas Proveedores
        fetchAccountVoucher: function(){
            var self = this;
            var defer = $.Deferred();
            var desde =moment().format('YYYY-MM-01');
            var hasta =moment().add(1,'months').format('YYYY-MM-01');
            var fields = ['id', 'amount', 'currency_id', 'payment_rate_currency_id', 'reference'];
            var domain= [['type', '=', 'payment'],['state', '=', 'posted'],['date', '>=',desde],['date','<',hasta]];
            var accountVoucher = new model.web.Model('account.voucher');
            accountVoucher.query(fields).filter(domain).all().then(function(results){
                defer.resolve(results);
            });
            return defer;
        },
        // invoice
        fetchAccountInvoice:function(voucher){
            var self = this;
            var defer = $.Deferred();
            var number = _.map(voucher,function(map){return map.reference});
            var fields = ['id','number','date_invoice','origin'];
            var domain = [['type', '=', 'in_invoice'],['origin', '!=', false ],['number', 'in', number]];
            var accountInvoice= new model.web.Model('account.invoice');
            accountInvoice.query(fields).filter(domain).all().then(function(results){
                defer.resolve(results);
            });
            return defer;
        },
        fetchCurrency: function () {
            var defer = $.Deferred();
            var currency_Rate = new model.web.Model('res.currency.rate');
            var fields = ['id', 'name', 'currency_id', 'rate', 'create_date'];
            var domain = [['currency_id', 'in', [166 , 20, 7, 3]]];
            currency_Rate.query(fields).filter(domain).all().then(function (results) {
                defer.resolve(results);
            });
            return defer;
        },
        //Comapnia
        fetchResCompany: function(){
            var self = this;
            var defer = $.Deferred();
            var fields =['id','name', 'currency_id', 'logo'];
            var domain =[['id', '=', 1]];
            var resCompany = new model.web.Model('res.company');

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

            return defer;
        },
        // Res currecy
        fetchResCurrecy : function(company){
            var self = this;
            var defer = $.Deferred();

            var id_curency = _.flatten(_.map(company,function(map){
                return map.currency_id[0];
            }));

            var fields =['id','name', 'symbol'];
            var domain =[['id','in',id_curency]];
            var resCurrecy = new model.web.Model('res.currency');

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

        fetchReduceVoucher: function () {
            var self = this;
            var newVoucher;
            var voucher=[];
            var cat = 0;
            var itemVoucher;
            var itemCurrencyRate;
            var company;
            var moneda = self.resCurrecy.shift();
            newVoucher = self.getVoucherInvoice();
            for (var i = 0; i < newVoucher.length; i++) {
                itemVoucher = newVoucher[i];
                itemCurrencyRate = self.getCutrrencyRate(itemVoucher.payment_rate_currency_id[0]);
                if(!itemCurrencyRate){
                    itemCurrencyRate={};
                    itemCurrencyRate.rate=1;
                }
                voucher.push({  ammount : itemVoucher.amount,
                                amount_rate :(itemVoucher.amount/itemCurrencyRate.rate)
                            });
            }
            if (voucher.length >0){
                cat = _.reduce(_.map(voucher, function (map) {
                    return map.amount_rate;
                }), function (memo, num) {
                    return memo + num;
                });
            }
            company = _.map(self.resCompany, function (map) {
                return map.currency_id[1];
            });

            if (moneda.id != 166){
                cat = accounting.formatNumber(cat,2, ".", ",");
            }else{
                cat = accounting.formatNumber(cat, ",", ".");
            }
            self.$el.find('.widget-content.widget-loading').css('display','none');
            self.$el.find('.widget-content').find('a').text(cat).append(' <small>'+moneda.symbol+'</small>');
            // self.$el.find('.widget-footer').find('span').text("Monto en "+ company);
            self.$el.find('#morosidad').unblock();
        },
        getCutrrencyRate: function (currency_id) {
            var self = this;
            return _.filter(self.currencyRate,function (item) {
                return item.currency_id[0] == currency_id
            }).shift();
        },
        getVoucherInvoice:function(){
            var self = this;
            var number =    _.map(self.accountInvoice, function(map){
                                return map.number;
                            });
            return  _.flatten(_.filter(self.accountVoucher,function(item){
                        return _.contains(number,item.reference);
                    }));
        },
        showCustomers: function (e) {
            var self = this;
            var hoy =moment().format('YYYY-MM-DD');
            var desde =moment().format('YYYY-MM-01');
            var hasta =moment().add(1,'months').format('YYYY-MM-01');
            var number = _.map(self.accountInvoice,function(map){return map.number});

            this.do_action({
                name:"Listado de compras del mes",
                type: 'ir.actions.act_window',
                res_model: "account.voucher",
                views: [[false, 'list'],[false,'form']],
                target: 'new',
                domain: [['type', '=', 'payment'],['state', '=', 'posted'],['date', '>=',desde],['date','<',hasta],['reference','in',number]],
                context: {},
                flags: {'form': {'action_buttons': false, 'options': {'mode': 'view'}}},
            });
        }
    });
}