import { createPrompt, useState, useKeypress, usePrefix, isEnterKey, isBackspaceKey, makeTheme, } from '@inquirer/core';
export default createPrompt((config, done) => {
const { required, validate = () => true } = config;
const theme = makeTheme(config.theme);
const [status, setStatus] = useState('idle');
const [defaultValue = '', setDefaultValue] = useState(config.default);
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 || defaultValue;
setStatus('loading');
const isValid = required && !answer ? 'You must provide a value' : 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 if (isBackspaceKey(key) && !value) {
setDefaultValue(undefined);
}
else if (key.name === 'tab' && !value) {
setDefaultValue(undefined);
rl.clearLine(0); // Remove the tab character.
rl.write(defaultValue);
setValue(defaultValue);
}
else {
setValue(rl.line);
setError(undefined);
}
});
const message = theme.style.message(config.message, status);
let formattedValue = value;
if (typeof config.transformer === 'function') {
formattedValue = config.transformer(value, { isFinal: status === 'done' });
}
else if (status === 'done') {
formattedValue = theme.style.answer(value);
}
let defaultStr;
if (defaultValue && status !== 'done' && !value) {
defaultStr = theme.style.defaultAnswer(defaultValue);
}
let error = '';
if (errorMsg) {
error = theme.style.error(errorMsg);
}
return [
[prefix, message, defaultStr, formattedValue]
.filter((v) => v !== undefined)
.join(' '),
error,
];
});