search.js

const EventEmitter = require('events');
const API = require('./mock-api');
// To count the matches, call API.countMatches(term) where term is the search term

class Search extends EventEmitter {
    async searchCount(searchTerm) {
        if (searchTerm === undefined) {
            this.emit('SEARCH_ERROR', { message: 'INVALID_TERM' });

            return;
        }

        this.emit('SEARCH_STARTED', searchTerm);

        try {
            const count = await API.countMatches(searchTerm);
            this.emit('SEARCH_SUCCESS', { count, term: searchTerm });
        } catch (error) {
            this.emit('SEARCH_ERROR', { message: error?.message, term: searchTerm });
        }
    }
}

module.exports = Search;