module.exports = Self => {
    Self.clone = async(ctx, salesIds, servicesIds, withWarehouse, group, negative, options) => {
        const models = Self.app.models;
        const myOptions = {};
        let tx;

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

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

        try {
            const salesFilter = {
                where: {id: {inq: salesIds}},
                include: {
                    relation: 'components',
                    scope: {
                        fields: ['saleFk', 'componentFk', 'value']
                    }
                }
            };
            const sales = await models.Sale.find(salesFilter, myOptions);
            let ticketsIds = [...new Set(sales.map(sale => sale.ticketFk))];

            const refundTickets = [];
            const mappedTickets = new Map();
            const now = Date.vnNew();

            if (group) ticketsIds = [ticketsIds[0]];

            for (let ticketId in ticketsIds) {
                await createTicketRefund(
                    ctx,
                    ticketsIds[ticketId],
                    withWarehouse,
                    refundTickets,
                    now,
                    myOptions
                );
                mappedTickets.set(ticketsIds[ticketId], refundTickets[ticketId].id);
            }

            for (const sale of sales) {
                const refundTicketId = mappedTickets.get(sale.ticketFk);

                const createdSale = await models.Sale.create({
                    ticketFk: refundTicketId,
                    itemFk: sale.itemFk,
                    quantity: negative ? - sale.quantity : sale.quantity,
                    concept: sale.concept,
                    price: sale.price,
                    discount: sale.discount,
                }, myOptions);

                const components = sale.components();
                for (const component of components)
                    component.saleFk = createdSale.id;

                await models.SaleComponent.create(components, myOptions);
            }

            if (servicesIds && servicesIds.length) {
                const servicesFilter = {
                    where: {id: {inq: servicesIds}}
                };
                const services = await models.TicketService.find(servicesFilter, myOptions);

                for (const service of services) {
                    const refundTicketId = mappedTickets.get(service.ticketFk);

                    await models.TicketService.create({
                        description: service.description,
                        quantity: negative ? - service.quantity : service.quantity,
                        price: service.price,
                        taxClassFk: service.taxClassFk,
                        ticketFk: refundTicketId,
                        ticketServiceTypeFk: service.ticketServiceTypeFk,
                    }, myOptions);
                }
            }

            if (tx) await tx.commit();

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

    async function createTicketRefund(
        ctx,
        ticketId,
        withWarehouse,
        refundTickets,
        now,
        myOptions
    ) {
        const models = Self.app.models;

        const ticket = await models.Ticket.findById(ticketId, myOptions);
        ctx.args.clientId = ticket.clientFk;
        ctx.args.shipped = now;
        ctx.args.landed = now;
        ctx.args.warehouseId = withWarehouse ? ticket.warehouseFk : null;
        ctx.args.companyId = ticket.companyFk;
        ctx.args.addressId = ticket.addressFk;

        const refundTicket = await models.Ticket.new(ctx, myOptions);

        refundTickets.push(refundTicket);
    }
};