/* Copyright 2018 Tecnativa - David Vidal
   License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl). */

odoo.define("pos_lot_selection.models", function (require) {
    "use strict";

    var models = require("point_of_sale.models");
    var session = require("web.session");

    models.PosModel = models.PosModel.extend({
        get_lot: function (product, location_id) {
            var done = new $.Deferred();
            session.rpc("/web/dataset/search_read", {
                "model": "stock.quant",
                "domain": [
                    ["location_id", "=", location_id],
                    ["product_id", "=", product],
                    ["lot_id", "!=", false]]
            }, {'async': false}).then(function (result) {
                var product_lot = {};
                if (result.length) {
                    for (var i = 0; i < result.length; i++) {
                        if (product_lot[result.records[i].lot_id[1]]) {
                            product_lot[result.records[i].lot_id[1]] += result.records[i].quantity;
                        } else {
                            product_lot[result.records[i].lot_id[1]] = result.records[i].quantity;
                        }
                    }
                }
                done.resolve(product_lot);
            });
            return done;
        },
    });

    var _orderline_super = models.Orderline.prototype;
    models.Orderline = models.Orderline.extend({
        compute_lot_lines: function(){
            var done = new $.Deferred();
            var compute_lot_lines = _orderline_super.compute_lot_lines.apply(this, arguments);
            this.pos.get_lot(this.product.id, this.pos.config.stock_location_id[0])
                .then(function (product_lot) {
                    var lot_name = Object.keys(product_lot);
                    for (var i = 0; i < lot_name.length; i++) {
                        if (product_lot[lot_name[i]] < compute_lot_lines.order_line.quantity) {
                            lot_name.splice(i, 1);
                        }
                    }
                    compute_lot_lines.lot_name = lot_name;
                    done.resolve(compute_lot_lines);
                });
            return compute_lot_lines;
        },
    });

});