Update new confirm prompt to use the hook API

packages/confirm/README.md

@@ -0,0 +1,31 @@
+# `@inquirer/confirm`
+
+Simple interactive command line prompt to gather boolean input from users.
+
+# Installation
+
+```sh
+npm install @inquirer/confirm
+
+yarn add @inquirer/confirm
+```
+
+# Usage
+
+```js
+import confirm from '@inquirer/confirm';
+
+const answer = await confirm({ message: 'Enter your name' });
+```
+
+## Options
+
+| Property | Type      | Required | Description                    |
+| -------- | --------- | -------- | ------------------------------ |
+| message  | `string`  | yes      | The question to ask            |
+| default  | `boolean` | no       | Default answer (true or false) |
+
+# License
+
+Copyright (c) 2019 Simon Boudrias (twitter: [@vaxilart](https://twitter.com/Vaxilart))
+Licensed under the MIT license.

packages/confirm/index.js

@@ -1,30 +1,32 @@
-const { createPrompt } = require('@inquirer/core');
 const chalk = require('chalk');
+const { createPrompt, useState, useKeypress } = require('@inquirer/core/hooks');
+const { isEnterKey } = require('@inquirer/core/lib/key');
+const { usePrefix } = require('@inquirer/core/lib/prefix');
 
-module.exports = createPrompt(
-  {
-    mapStateToValue({ value, default: rawDefault }) {
-      if (value) {
-        return /^y(es)?/i.test(value);
-      }
+module.exports = createPrompt((config, done) => {
+  const [status, setStatus] = useState('pending');
+  const [value, setValue] = useState('');
+  const prefix = usePrefix();
 
-      return rawDefault !== false;
-    }
-  },
-  (state, { mapStateToValue }) => {
-    const { prefix, value = '', status } = state;
-    const message = chalk.bold(state.message);
-    let formattedValue = value;
-    if (status === 'done') {
-      const value = mapStateToValue(state);
-      formattedValue = chalk.cyan(value ? 'yes' : 'no');
-    }
-
-    let defaultValue = '';
-    if (status !== 'done') {
-      defaultValue = chalk.dim(state.default === false ? ' (y/N)' : ' (Y/n)');
+  useKeypress((key, rl) => {
+    if (isEnterKey(key)) {
+      const answer = value ? /^y(es)?/i.test(value) : config.default !== false;
+      setValue(answer ? 'yes' : 'no');
+      setStatus('done');
+      done(answer);
+    } else {
+      setValue(rl.line);
     }
+  });
 
-    return `${prefix} ${message}${defaultValue} ${formattedValue}`;
+  let formattedValue = value;
+  let defaultValue = '';
+  if (status === 'done') {
+    formattedValue = chalk.cyan(value ? 'yes' : 'no');
+  } else {
+    defaultValue = chalk.dim(config.default === false ? ' (y/N)' : ' (Y/n)');
   }
-);
+
+  const message = chalk.bold(config.message);
+  return `${prefix} ${message}${defaultValue} ${formattedValue}`;
+});