pokemon-picker/bin/cli.js

🎨 Pick your Pokémon from Pokédex!

#! /usr/bin/env node

import minimist from 'minimist';
import picker from '../index.js';
import { readFileSync } from 'fs';
import { fileURLToPath } from 'url';
import { dirname, join } from 'path';

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
const pkg = JSON.parse(readFileSync(join(__dirname, '../package.json'), 'utf-8'));

const argv = minimist(process.argv.slice(2), {
    boolean: ['a', 'r', 's', 'V', 'version', 'h', 'help'],
    string: ['i', 'n', 't'],
    alias: {
        V: 'version',
        h: 'help'
    }
});

function showHelp() {
    console.log('Usage: pokemon-picker [options]');
    console.log('');
    console.log(pkg.description);
    console.log('');
    console.log('Options:');
    console.log('  -V, --version  output the version number');
    console.log('  -a             Get whole list of Pokémons');
    console.log('  -i [index]     Get Pokémon by index');
    console.log('  -n [name]      Get Pokémon by name');
    console.log('  -t [type]      Get Pokémons by type');
    console.log('  -r             Return random Pokémon');
    console.log('  -s             Return number of database size');
    console.log('  -h, --help     output usage information');
}

// Handle --version or -V
if (argv.version) {
    console.log(pkg.version);
    process.exit(0);
}

// Handle --help or -h
if (argv.help) {
    showHelp();
    process.exit(0);
}

// Handle -a (all)
if (argv.a) {
    console.log(picker.all());
    process.exit(0);
}

// Handle -i [index] (by index)
if (argv.i !== undefined) {
    if (argv.i === true || argv.i === '') {
        console.error('Error: -i option requires an index value');
        process.exit(1);
    }
    const index = parseInt(argv.i, 10);
    if (isNaN(index)) {
        console.error('Error: Index must be a valid number');
        process.exit(1);
    }
    console.log(picker.byIndex(index));
    process.exit(0);
}

// Handle -n [name] (by name)
if (argv.n !== undefined) {
    console.log(picker.byName(argv.n));
    process.exit(0);
}

// Handle -t [type] (by type)
if (argv.t !== undefined) {
    console.log(picker.byType(argv.t));
    process.exit(0);
}

// Handle -r (random)
if (argv.r) {
    console.log(picker.randomize());
    process.exit(0);
}

// Handle -s (size)
if (argv.s) {
    console.log(picker.size());
    process.exit(0);
}

// Default mode: no arguments provided
// Check if no valid options were processed
const booleanOptions = ['version', 'help', 'a', 'r', 's'];
const stringOptions = ['i', 'n', 't'];

const hasBooleanOption = booleanOptions.some((opt) => argv[opt] === true);

const hasStringOption = stringOptions.some((opt) => typeof argv[opt] === 'string' && argv[opt] !== '');

if (!hasBooleanOption && !hasStringOption) {
    console.log(picker.randomize());
}