snips-sam/src/utils/prompt.ts

The Snips Assistant Manager

import { Stream } from './stream';
import { flatMap } from '../utils/functions';

const inquirer = require('inquirer');

export class Prompt {

    public stream: Stream;

    constructor(stream: Stream) {
        this.stream = stream;
    }

    waitForKeypress = async (question: string, completionBlock: () => any) => {
        this.stream.loading(question);
        return this.waitForInput(completionBlock);
    }

    promptList = async (name: string, question: string, answers: string[]): Promise<string> => {
        return inquirer.prompt([
            {
                name,
                type: 'list',
                message: question,
                choices: answers,
            },
        ]);
    }

    promptQuestions = async (questions: any[]) => {
        const questionsFlat = flatMap(questions, (value, index, array) => value);
        return inquirer.prompt(questionsFlat);
    }

    waitForInput = async (preBlock: () => any) => {
        if (process.stdin.setRawMode !== undefined) {
            process.stdin.setRawMode(true);
        }
        return new Promise((resolve) => {
            process.stdin.on('data', (input) => {
                if (process.stdin.setRawMode !== undefined) {
                    process.stdin.setRawMode(false);
                }
                preBlock();
                return resolve(input);
            });
        });
    }
}