90 lines
3.0 KiB
JavaScript
90 lines
3.0 KiB
JavaScript
import { createPrompt, useMemo, useState, useKeypress, usePrefix, isEnterKey, Separator, makeTheme, } from '@inquirer/core';
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import colors from 'yoctocolors-cjs';
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const numberRegex = /\d+/;
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function isSelectableChoice(choice) {
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return choice != null && !Separator.isSeparator(choice);
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}
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function normalizeChoices(choices) {
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let index = 0;
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return choices.map((choice) => {
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if (Separator.isSeparator(choice))
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return choice;
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index += 1;
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if (typeof choice === 'string') {
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return {
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value: choice,
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name: choice,
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short: choice,
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key: String(index),
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};
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}
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const name = choice.name ?? String(choice.value);
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return {
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value: choice.value,
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name,
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short: choice.short ?? name,
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key: choice.key ?? String(index),
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};
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});
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}
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export default createPrompt((config, done) => {
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const choices = useMemo(() => normalizeChoices(config.choices), [config.choices]);
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const [status, setStatus] = useState('idle');
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const [value, setValue] = useState('');
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const [errorMsg, setError] = useState();
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const theme = makeTheme(config.theme);
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const prefix = usePrefix({ status, theme });
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useKeypress((key, rl) => {
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if (isEnterKey(key)) {
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let selectedChoice;
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if (numberRegex.test(value)) {
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const answer = Number.parseInt(value, 10) - 1;
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selectedChoice = choices.filter(isSelectableChoice)[answer];
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}
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else {
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selectedChoice = choices.find((choice) => isSelectableChoice(choice) && choice.key === value);
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}
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if (isSelectableChoice(selectedChoice)) {
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setValue(selectedChoice.short ?? selectedChoice.name ?? String(selectedChoice.value));
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setStatus('done');
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done(selectedChoice.value);
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}
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else if (value === '') {
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setError('Please input a value');
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}
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else {
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setError(`"${colors.red(value)}" isn't an available option`);
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}
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}
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else {
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setValue(rl.line);
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setError(undefined);
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}
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});
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const message = theme.style.message(config.message, status);
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if (status === 'done') {
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return `${prefix} ${message} ${theme.style.answer(value)}`;
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}
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const choicesStr = choices
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.map((choice) => {
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if (Separator.isSeparator(choice)) {
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return ` ${choice.separator}`;
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}
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const line = ` ${choice.key}) ${choice.name}`;
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if (choice.key === value.toLowerCase()) {
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return theme.style.highlight(line);
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}
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return line;
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})
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.join('\n');
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let error = '';
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if (errorMsg) {
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error = theme.style.error(errorMsg);
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}
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return [
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`${prefix} ${message} ${value}`,
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[choicesStr, error].filter(Boolean).join('\n'),
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];
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});
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export { Separator } from '@inquirer/core';
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