<?php

namespace NoccyLabs\Shell;

class Context
{
    protected $name;

    protected $commands = [];

    protected $data = [];


    public function __construct($name=null, array $data=[])
    {
        $this->name = $name;
        $this->data = $data;
        $this->configure();
    }

    protected function configure()
    {
        // Override this to do setup stuff
    }

    public function addCommand($command, callable $handler)
    {
        $this->commands[$command] = $handler;
    }

    public function addCommands(array $commands)
    {
        foreach ($commands as $command=>$handler) {
            // Make it easier to connect commands direct to local functions
            if (is_string($handler) && is_callable([$this,$handler])) {
                $handler = [ $this,$handler ];
            }
            // Add the command to the command list
            $this->addCommand($command, $handler);
        }
    }

    public function hasCommand($command)
    {
        return array_key_exists($command, $this->commands);
    }

    public function getCommand($command)
    {
        return $this->commands[$command];
    }

    public function getName()
    {
        return $this->name;
    }

    public function __get($key)
    {
        if (!array_key_exists($key,$this->data)) {
            return false;
        }
        return $this->data[$key];
    }

    public function __set($key,$value)
    {
        $this->data[$key] = $value;
    }

    public function __isset($key)
    {
        return array_key_exists($key);
    }

    public function __unset($key)
    {
        unset($this->data[$key]);
    }

    public function getData()
    {
        return $this->data;
    }

}