const color = require('kleur'); const Prompt = require('./prompt'); const { style, clear } = require('../util'); const { erase, cursor } = require('sisteransi'); /** * ConfirmPrompt Base Element * @param {Object} opts Options * @param {String} opts.message Message * @param {Boolean} [opts.initial] Default value (true/false) * @param {Stream} [opts.stdin] The Readable stream to listen to * @param {Stream} [opts.stdout] The Writable stream to write readline data to * @param {String} [opts.yes] The "Yes" label * @param {String} [opts.yesOption] The "Yes" option when choosing between yes/no * @param {String} [opts.no] The "No" label * @param {String} [opts.noOption] The "No" option when choosing between yes/no */ class ConfirmPrompt extends Prompt { constructor(opts={}) { super(opts); this.msg = opts.message; this.value = opts.initial; this.initialValue = !!opts.initial; this.yesMsg = opts.yes || 'yes'; this.yesOption = opts.yesOption || '(Y/n)'; this.noMsg = opts.no || 'no'; this.noOption = opts.noOption || '(y/N)'; this.render(); } reset() { this.value = this.initialValue; this.fire(); this.render(); } exit() { this.abort(); } abort() { this.done = this.aborted = true; this.fire(); this.render(); this.out.write('\n'); this.close(); } submit() { this.value = this.value || false; this.done = true; this.aborted = false; this.fire(); this.render(); this.out.write('\n'); this.close(); } _(c, key) { if (c.toLowerCase() === 'y') { this.value = true; return this.submit(); } if (c.toLowerCase() === 'n') { this.value = false; return this.submit(); } return this.bell(); } render() { if (this.closed) return; if (this.firstRender) this.out.write(cursor.hide); else this.out.write(clear(this.outputText, this.out.columns)); super.render(); this.outputText = [ style.symbol(this.done, this.aborted), color.bold(this.msg), style.delimiter(this.done), this.done ? (this.value ? this.yesMsg : this.noMsg) : color.gray(this.initialValue ? this.yesOption : this.noOption) ].join(' '); this.out.write(erase.line + cursor.to(0) + this.outputText); } } module.exports = ConfirmPrompt;