compose.md

The compose function

Use to create a data structure used in the presentation layer of the application

Requirements

1. efficient lookup
2. ease of use where a tabular design is used by the presentation layer to display availability

The concept of the data structure is based on a table where the columns are days and the rows are hours of the day. It's structure however is a map having keys that are hashes of the coordinates of the timeslot on the table. The values in the map are buckets containing whatever the application uses to identify the individuals that are available during the given timeslot.

const availablityOfAll = [
    [person1ID, person1Availability],
    [person2ID, pserson2Availability],
    /* ... */
];
const availability = compose(availabilityOfAll);

/* one possibility... */

const timeslot = hash([day, hour]);

const availablePeople = availability.get(timeslot);

/* or */

for (day of week) {
    for (hour of day) {
        if (availability.has(timeslot)) {
            // display
        } else {
            // don't display
        }
    }
}

/* also to select an individual */

for (day of week) {
    for (hour of day) {
        if (availability.get(timeslot).includes(id)) {
            // display
        } else {
            // don't display
        }
    }
}

The README file