salix/modules/ticket/back/methods/ticket/priceDifference.js

const UserError = require('vn-loopback/util/user-error');

module.exports = Self => {
    Self.remoteMethodCtx('priceDifference', {
        description: 'Returns sales with price difference if the ticket is editable',
        accessType: 'READ',
        accepts: [{
            arg: 'id',
            type: 'number',
            required: true,
            description: 'The ticket id',
            http: {source: 'path'}
        },
        {
            arg: 'landed',
            type: 'date',
            description: 'The landing date',
            required: true
        },
        {
            arg: 'addressId',
            type: 'number',
            description: 'The address id',
            required: true
        },
        {
            arg: 'agencyModeId',
            type: 'number',
            description: 'The agencyMode id',
            required: true
        },
        {
            arg: 'zoneId',
            type: 'number',
            description: 'The zone id',
            required: true
        },
        {
            arg: 'warehouseId',
            type: 'number',
            description: 'The warehouse id',
            required: true
        },
        {
            arg: 'shipped',
            type: 'date',
            description: 'shipped',
            required: true
        }],
        returns: {
            type: ['object'],
            root: true
        },
        http: {
            path: `/:id/priceDifference`,
            verb: 'POST'
        }
    });

    Self.priceDifference = async(ctx, options) => {
        const args = ctx.args;
        const models = Self.app.models;
        const userId = ctx.req.accessToken.userId;
        const myOptions = {};
        let tx;

        if (typeof options == 'object')
            Object.assign(myOptions, options);

        if (!myOptions.transaction) {
            tx = await Self.beginTransaction({});
            myOptions.transaction = tx;
        }

        try {
            const isEditable = await Self.isEditable(ctx, args.id, myOptions);

            if (!isEditable)
                throw new UserError(`The sales of this ticket can't be modified`);

            const isDeliveryBoss = await models.Account.hasRole(userId, 'deliveryBoss', myOptions);
            if (!isDeliveryBoss) {
                const zoneShipped = await models.Agency.getShipped(
                    args.landed,
                    args.addressId,
                    args.agencyModeId,
                    args.warehouseId,
                    myOptions);

                if (!zoneShipped || zoneShipped.zoneFk != args.zoneId) {
                    const error = `You don't have privileges to change the zone`;

                    throw new UserError(error);
                }
            }

            const items = await models.Sale.find({
                where: {
                    ticketFk: args.id
                },
                order: 'concept ASC',
                include: 'item'
            }, myOptions);

            const salesObj = {
                items: items,
                totalUnitPrice: 0.00,
                totalNewPrice: 0.00,
                totalDifference: 0.00,
            };

            // Get items movable
            const ticketOrigin = await models.Ticket.findById(args.id, null, myOptions);
            const differenceShipped = ticketOrigin.shipped.getTime() > args.shipped.getTime();
            const differenceWarehouse = ticketOrigin.warehouseFk != args.warehouseId;

            salesObj.haveDifferences = differenceShipped || differenceWarehouse;

            let query = `CALL ticket_getMovable(?,?,?)`;
            let params = [args.id, args.shipped, args.warehouseId];
            const [salesMovable] = await Self.rawSql(query, params, myOptions);

            const itemMovable = new Map();
            for (sale of salesMovable) {
                const saleMovable = sale.movable ? sale.movable : 0;
                itemMovable.set(sale.id, saleMovable);
            }

            // Sale price component, one per sale
            query = `CALL vn.ticket_priceDifference(?, ?, ?, ?, ?)`;
            params = [args.id, args.landed, args.addressId, args.zoneId, args.warehouseId];
            const [difComponents] = await Self.rawSql(query, params, myOptions);

            const map = new Map();
            for (difComponent of difComponents)
                map.set(difComponent.saleFk, difComponent);

            for (sale of salesObj.items) {
                const difComponent = map.get(sale.id);
                if (difComponent) {
                    sale.component = difComponent;

                    salesObj.totalDifference += difComponent.difference;
                    salesObj.totalDifference = round(salesObj.totalDifference);

                    salesObj.totalNewPrice += difComponent.newPrice;
                    salesObj.totalNewPrice = round(salesObj.totalNewPrice);
                }

                salesObj.totalUnitPrice += sale.price;
                salesObj.totalUnitPrice = round(salesObj.totalUnitPrice);
                sale.movable = itemMovable.get(sale.id);
            }

            if (tx) await tx.commit();

            return salesObj;
        } catch (e) {
            if (tx) await tx.rollback();
            throw e;
        }
    };

    function round(value) {
        return Math.round(value * 100) / 100;
    }
};