cli-legend
Version:
"A fun command-line rogurelike dungeon game"
56 lines (55 loc) • 2.15 kB
JavaScript
import { createPrompt, useState, useKeypress, usePrefix, isEnterKey, makeTheme, } from '@inquirer/core';
import ansiEscapes from 'ansi-escapes';
export default createPrompt((config, done) => {
const { validate = () => true } = config;
const theme = makeTheme(config.theme);
const [status, setStatus] = useState('idle');
const [errorMsg, setError] = useState();
const [value, setValue] = useState('');
const prefix = usePrefix({ status, theme });
useKeypress(async (key, rl) => {
// Ignore keypress while our prompt is doing other processing.
if (status !== 'idle') {
return;
}
if (isEnterKey(key)) {
const answer = value;
setStatus('loading');
const isValid = await validate(answer);
if (isValid === true) {
setValue(answer);
setStatus('done');
done(answer);
}
else {
// Reset the readline line value to the previous value. On line event, the value
// get cleared, forcing the user to re-enter the value instead of fixing it.
rl.write(value);
setError(isValid || 'You must provide a valid value');
setStatus('idle');
}
}
else {
setValue(rl.line);
setError(undefined);
}
});
const message = theme.style.message(config.message, status);
let formattedValue = '';
let helpTip;
if (config.mask) {
const maskChar = typeof config.mask === 'string' ? config.mask : '*';
formattedValue = maskChar.repeat(value.length);
}
else if (status !== 'done') {
helpTip = `${theme.style.help('[input is masked]')}${ansiEscapes.cursorHide}`;
}
if (status === 'done') {
formattedValue = theme.style.answer(formattedValue);
}
let error = '';
if (errorMsg) {
error = theme.style.error(errorMsg);
}
return [[prefix, message, config.mask ? formattedValue : helpTip].join(' '), error];
});