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index.js
89 lines (71 loc) · 1.76 KB
/
index.js
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/**
* Simple UI receives translates user input into 'user' events
* and performs rudimentary output functions.
*
* @author Villem Alango <villem.alango@gmail.com>
*/
'use strict';
var B = '\u001B[34m'; // blue
var G = '\u001B[32m'; // green
var M = '\u001B[35m'; // magenta
var R = '\u001B[39m'; // reset
var helloText = [
'Hey, I am a simple terminal-style interpreter demo.',
'You type something in and I shall do something... not dangerous.',
'Meaning of the colors:',
G + ' - your input;',
B + ' - internal events log;',
M + ' - my responses.',
R + 'Good luck!',
''];
var name = 'ui-simple'
, bus
, prompt = 'OHAI'
, readline = require('readline'),
rl = readline.createInterface(process.stdin, process.stdout);
var setPrompt = function (msg) {
prompt = G + msg + '> ';
rl.setPrompt(prompt);
};
var clear = function () {
readline.cursorTo(process.stdout, 0, 0);
readline.clearScreenDown(process.stdin);
};
var logics = function (cmd, a1) {
switch (cmd) {
case 'clear':
clear();
break;
case 'say':
console.log(M + a1 + R);
break;
case 'log':
console.log(B + 'LOG: ' + a1 + R);
break;
case 'set.prompt':
setPrompt(a1);
break;
case 'prompt':
rl.prompt();
break;
default:
return;
}
return true;
};
var init = function (busInstance) {
(bus = busInstance)
.on('ui', logics)
.send('module.connected', name);
clear();
setPrompt('OHAI');
console.log(helloText.join('\n'));
// Actual input feed event listener.
rl.on('line', function (line) {
var input = line.trim();
bus.send('user', input);
}).on('close', function () {
bus.off('ui', logics).emit('app', 'close');
});
};
module.exports = init;