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

module.exports = Self => {
    Self.remoteMethodCtx('reserve', {
        description: 'Change the state of a ticket',
        accessType: 'WRITE',
        accepts: [{
            arg: 'ticketId',
            type: 'Number',
            required: true,
            description: 'The ticket id'
        }, {
            arg: 'sales',
            type: ['Object'],
            required: true,
            description: 'The sale to reserve'
        },
        {
            arg: 'reserved',
            type: 'Boolean',
            required: true
        }],
        returns: {
            type: ['Object'],
            root: true
        },
        http: {
            path: `/reserve`,
            verb: 'POST'
        }
    });

    Self.reserve = async(ctx, ticketId, sales, reserved) => {
        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 canEditSale = await models.Sale.canEdit(ctx, sales);

        if (!canEditSale)
            throw new UserError(`Sale(s) blocked, please contact production`);

        const promises = [];
        for (let sale of sales) {
            const reservedSale = models.Sale.update({id: sale.id}, {reserved: reserved});
            promises.push(reservedSale);
        }

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