module.exports = Self => {
    Self.remoteMethodCtx('replaceItem', {
        description: 'Replace item from sale',
        accessType: 'WRITE',
        accepts: [{
            arg: 'saleFk',
            type: 'number',
            required: true,
        },
        {
            arg: 'substitutionFk',
            type: 'number',
            required: true
        },
        {
            arg: 'quantity',
            type: 'number',
            required: true
        }
        ],
        returns: {
            type: 'object',
            root: true
        },
        http: {
            path: `/replaceItem`,
            verb: 'POST'
        }
    });

    Self.replaceItem = async(ctx, saleFk, substitutionFk, quantity, options) => {
        const myOptions = {userId: ctx.req.accessToken.userId};
        let tx;
        const {_saleFk, _substitutionFk, _quantity} = ctx.args;

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

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

        try {
            const result = await Self.rawSql('CALL sale_replaceItem(?,?,?)', [saleFk, substitutionFk, quantity], myOptions);
            return result;
        } catch (e) {
            if (tx) await tx.rollback();
            throw e;
        }
    };
};