<?php
/*
 *  This example demonstrates how to use events to catch commands that
 *  have not been handled by any context or builtin.
 *
 */

require_once __DIR__."/../vendor/autoload.php";

use NoccyLabs\Shell\Shell;
use NoccyLabs\Shell\Style;
use NoccyLabs\Shell\Context;
use NoccyLabs\Shell\TaskInterface;

class MyTask implements TaskInterface
{
    protected $start;
    protected $last;
    public function __construct()
    {
        $this->start = time();
    }
    public function update()
    {
        if ($this->last < time()) {
            echo date("H:i:s")."\n";
            $this->last = time();
        }
    }
    public function isValid()
    {
        return (time() - $this->start < 5);
    }
}

$myShell = new Shell();

$myShell->addListener(Shell::EVT_TASK_CREATED, function ($e) {
    echo "EVT_TASK_CREATED:\n";
    printf("|_task: %s\n", get_class($e->task));
});
$myShell->addListener(Shell::EVT_TASK_DESTROYED, function ($e) {
    echo "EVT_TASK_DESTROYED:\n";
    printf("|_task: %s\n", get_class($e->task));
});


$myShell->addTask(new MyTask());

// Set the initial prompt, not really needed.
$myShell->setPrompt("test>");

// Create an anonymous context and add a command
$ctx = $myShell->createContext("root");
$ctx->addCommand("hello", function () {
    echo "Hello World!\n";
});

// Run the shell
$myShell->run();