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

module.exports = Self => {
    Self.remoteMethodCtx('deleteSales', {
        description: 'Deletes the selected sales',
        accessType: 'WRITE',
        accepts: [{
            arg: 'sales',
            type: ['Object'],
            required: true,
            description: 'The sales to remove'
        },
        {
            arg: 'ticketId',
            type: 'Number',
            required: true,
            description: 'The ticket id'
        }],
        returns: {
            type: ['Object'],
            root: true
        },
        http: {
            path: `/deleteSales`,
            verb: 'POST'
        }
    });

    Self.deleteSales = async(ctx, sales, ticketId) => {
        const models = Self.app.models;
        const isTicketEditable = await models.Ticket.isEditable(ctx, ticketId);
        if (!isTicketEditable)
            throw new UserError(`The sales of this ticket can't be modified`);

        const promises = [];
        for (let sale of sales) {
            const deletedSale = models.Sale.destroyById(sale.id);
            promises.push(deletedSale);
        }

        return Promise.all(promises);
    };
};