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

module.exports = Self => {
    Self.remoteMethodCtx('activeContract', {
        description: 'Returns an array of contracts from an specified worker',
        accepts: [{
            arg: 'id',
            type: 'number',
            required: true,
            description: 'The worker id',
            http: {source: 'path'}
        }],
        returns: {
            type: ['object'],
            root: true
        },
        http: {
            path: `/:id/activeContract`,
            verb: 'GET'
        }
    });

    Self.activeContract = async(ctx, id) => {
        const models = Self.app.models;
        const isSubordinate = await models.Worker.isSubordinate(ctx, id);

        if (!isSubordinate)
            throw new UserError(`You don't have enough privileges`);

        const now = Date.vnNew();

        return models.WorkerLabour.findOne({
            where: {
                and: [
                    {workerFk: id},
                    {started: {lte: now}},
                    {
                        or: [
                            {ended: {gte: now}},
                            {ended: null}
                        ]
                    }
                ]
            }
        });
    };
};