npm run import -- "search timeline events"

var PROFILE_PATH = process.env.HOME || process.env.HOMEPATH || process.env.USERPROFILE;
var PROJECT_PATH = PROFILE_PATH + '/Collections/timeline';
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

function timelineEvents(date) {
    var dateKey;
    if(!isNaN((new Date(date + '')).getTime())) {
        date = new Date(date + '');
        dateKey = date.getDate() + months[date.getMonth()]
            + (date.getFullYear() + '').substr(2, 2);
    } else {
        dateKey = date || '1Oct16';
    }
    return JSON.parse(fs.readFileSync(PROJECT_PATH + '/events-' + dateKey + '.json').toString());
}
module.exports = timelineEvents;

What the code could have been:

/**
 * Environment variable constants for profile and project paths.
 */
const profilePath = getEnvironmentVariable('HOME') || getEnvironmentVariable('HOMEPATH') || getEnvironmentVariable('USERPROFILE');
const projectPath = `${profilePath}/Collections/timeline`;

/**
 * Months array for date formatting.
 */
const months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

/**
 * Function to parse environment variables.
 * @param {string} variable The environment variable name.
 * @returns {string} The environment variable value or undefined if not set.
 */
function getEnvironmentVariable(variable) {
    return process.env[variable];
}

/**
 * Function to get a specific timeline event based on the date.
 * 
 * @param {Date|string} date The date for which to retrieve events.
 * @returns {object} The timeline events for the specified date.
 * @throws {Error} If the event file does not exist or cannot be parsed.
 */
function timelineEvents(date) {
    // Check if the date is a valid date string
    if (!isNaN(Date.parse(date))) {
        date = new Date(date);
        const dateKey = `${date.getDate()}${months[date.getMonth()]}${date.getFullYear().toString().substr(2, 2)}`;
        // TODO: Return a default event object if the file does not exist
        return readJsonFile(`${projectPath}/events-${dateKey}.json`);
    } else {
        // TODO: Validate the date string against a default format
        return readJsonFile('events-1Oct16.json');
    }
}

/**
 * Function to read a JSON file synchronously.
 * 
 * @param {string} filePath The path to the JSON file to read.
 * @returns {object} The JSON object parsed from the file.
 * @throws {Error} If the file does not exist or cannot be parsed.
 */
function readJsonFile(filePath) {
    try {
        return JSON.parse(fs.readFileSync(filePath).toString());
    } catch (error) {
        throw new Error(`Error reading JSON file: ${error.message}`);
    }
}

module.exports = timelineEvents;