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- 'use strict';
-
- const Prompt = require('../prompt');
- const { isPrimitive, hasColor } = require('../utils');
-
- class BooleanPrompt extends Prompt {
- constructor(options) {
- super(options);
- this.cursorHide();
- }
-
- async initialize() {
- let initial = await this.resolve(this.initial, this.state);
- this.input = await this.cast(initial);
- await super.initialize();
- }
-
- dispatch(ch) {
- if (!this.isValue(ch)) return this.alert();
- this.input = ch;
- return this.submit();
- }
-
- format(value) {
- let { styles, state } = this;
- return !state.submitted ? styles.primary(value) : styles.success(value);
- }
-
- cast(input) {
- return this.isTrue(input);
- }
-
- isTrue(input) {
- return /^[ty1]/i.test(input);
- }
-
- isFalse(input) {
- return /^[fn0]/i.test(input);
- }
-
- isValue(value) {
- return isPrimitive(value) && (this.isTrue(value) || this.isFalse(value));
- }
-
- async hint() {
- if (this.state.status === 'pending') {
- let hint = await this.element('hint');
- if (!hasColor(hint)) {
- return this.styles.muted(hint);
- }
- return hint;
- }
- }
-
- async render() {
- let { input, size } = this.state;
-
- let prefix = await this.prefix();
- let sep = await this.separator();
- let msg = await this.message();
- let hint = this.styles.muted(this.default);
-
- let promptLine = [prefix, msg, hint, sep].filter(Boolean).join(' ');
- this.state.prompt = promptLine;
-
- let header = await this.header();
- let value = this.value = this.cast(input);
- let output = await this.format(value);
- let help = (await this.error()) || (await this.hint());
- let footer = await this.footer();
-
- if (help && !promptLine.includes(help)) output += ' ' + help;
- promptLine += ' ' + output;
-
- this.clear(size);
- this.write([header, promptLine, footer].filter(Boolean).join('\n'));
- this.restore();
- }
-
- set value(value) {
- super.value = value;
- }
- get value() {
- return this.cast(super.value);
- }
- }
-
- module.exports = BooleanPrompt;
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