scrabble-cheater/dist/index.js

A simple Scrabble cheating tool.

import clipboard from 'clipboardy';
import fs from 'node:fs/promises';
import readline from 'node:readline';
const defaultOptions = {
    letters: '',
    maximum: 0,
    quietMode: false,
    singleMode: false,
};
export class ScrabbleCheater {
    constructor(wordListPath, options) {
        this.dictionary = [];
        this.wordListPath = wordListPath;
        this.options = { ...defaultOptions, ...options };
    }
    setLetters(letters) {
        this.options.letters = letters;
        return this;
    }
    async start() {
        const length = await this.loadWords();
        if (!length) {
            throw new Error('No words loaded. Wordlist file corrupt?');
        }
        this.log(`${length} word${length > 1 ? 's' : ''} loaded.`);
        const letters = this.options.letters ? this.formatLetters(this.options.letters) : await this.readLineAsync();
        let matches = this.findMatches(letters);
        this.log(`ScrabbleCheater: ${matches.length} matches found`, true);
        if (this.options.maximum) {
            this.log(`, ${this.options.singleMode ? 'sending' : 'displaying'} the first ${this.options.maximum}`, true);
            matches = matches.slice(0, this.options.maximum);
        }
        this.log('.\n\n', true);
        if (this.options.singleMode) {
            this.singleOutput(matches);
        }
        return matches;
    }
    findMatches(letters) {
        const regex = new RegExp(`^[${letters}]+$`);
        return this.dictionary.filter(word => regex.test(word)).sort((wordA, wordB) => wordB.length - wordA.length);
    }
    formatLetters(letters) {
        const regex = new RegExp('[^A-Za-z]');
        return letters.replace(regex, '').toLowerCase();
    }
    async loadWords() {
        const regex = new RegExp('^[A-Za-z]+$');
        const wordList = await fs.readFile(this.wordListPath, 'utf-8');
        this.dictionary = wordList.split('\n').filter(value => regex.test(value));
        return this.dictionary.length;
    }
    log(message, raw = false) {
        if (!this.options.quietMode) {
            if (!raw) {
                console.info(`ScrabbleCheater: ${message}`);
            }
            else {
                process.stdout.write(message);
            }
        }
    }
    readLineAsync() {
        return new Promise((resolve, reject) => {
            const rl = readline.createInterface({
                input: process.stdin,
                output: process.stdout,
            });
            rl.question('Letters? ', input => {
                const letters = this.formatLetters(input);
                if (letters) {
                    resolve(letters);
                }
                else {
                    reject(new Error('No letters entered.'));
                }
                rl.close();
            });
        });
    }
    singleOutput(matches) {
        const rl = readline.createInterface({
            input: process.stdin,
            output: process.stdout,
        });
        let counter = 0;
        const next = () => {
            clipboard.writeSync(matches[counter]);
            if (counter < matches.length - 1) {
                this.log('Press Enter to copy the next word...');
                counter++;
            }
            else {
                return rl.close();
            }
        };
        rl.on('line', next);
        next();
    }
}