filterHotelsByRatePlan.js

filterHotelsByRatePlan.js

import R from 'ramda';

// [] -> Boolean
function notEmpty(xs) {
    return xs.length > 0;
}

// (RatePlan -> Boolean) -> [AvailableHotel] -> [AvailableHotel]
function filterHotelsByRatePlan(ratePlanIndicator) {
    const ratePlans = R.filter(ratePlanIndicator);
    const roomType = R.evolve({ratePlans});

    const roomTypes = R.compose(
        R.filter(R.compose(notEmpty, R.prop('ratePlans'))),
        R.map(roomType)
    );

    const availableHotel = R.evolve({roomTypes});

    return R.compose(
        R.filter(R.compose(notEmpty, R.prop('roomTypes'))),
        R.map(availableHotel)
    );
}

export default filterHotelsByRatePlan;