module.exports = Self => {
    Self.remoteMethodCtx('toUnbook', {
        description: 'To unbook the invoiceIn',
        accessType: 'WRITE',
        accepts: {
            arg: 'id',
            type: 'number',
            required: true,
            description: 'The invoiceIn id',
            http: {source: 'path'}
        },
        returns: {
            type: 'object',
            root: true
        },
        http: {
            path: '/:id/toUnbook',
            verb: 'POST'
        }
    });

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

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

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

        try {
            let isLinked;
            let accountingEntries;

            let bookEntry = await models.Xdiario.findOne({
                fields: ['ASIEN'],
                where: {
                    and: [
                        {key: invoiceInId},
                        {enlazado: false},
                        {enlazadoSage: false}
                    ]
                }
            }, myOptions);

            let asien = bookEntry?.ASIEN;
            if (asien) {
                accountingEntries = await models.Xdiario.count({ASIEN: asien}, myOptions);

                await models.Xdiario.destroyAll({ASIEN: asien}, myOptions);
                await Self.updateAll({id: invoiceInId}, {isBooked: false}, myOptions);
            } else {
                const linkedBookEntry = await models.Xdiario.findOne({
                    fields: ['ASIEN'],
                    where: {
                        key: invoiceInId,
                        and: [{or: [{enlazado: true, enlazadoSage: true}]}]
                    }
                }, myOptions);

                asien = linkedBookEntry?.ASIEN;
                isLinked = true;
            }
            if (tx) await tx.commit();

            return {
                isLinked,
                bookEntry: asien,
                accountingEntries
            };
        } catch (e) {
            if (tx) await tx.rollback();
            throw e;
        }
    };
};