<?php

/**
 * Part of the Support package.
 *
 * NOTICE OF LICENSE
 *
 * Licensed under the 3-clause BSD License.
 *
 * This source file is subject to the 3-clause BSD License that is
 * bundled with this package in the LICENSE file.
 *
 * @package    Support
 * @version    2.0.1
 * @author     Cartalyst LLC
 * @license    BSD License (3-clause)
 * @copyright  (c) 2011-2017, Cartalyst LLC
 * @link       http://cartalyst.com
 */

namespace Cartalyst\Support\Traits;

use Illuminate\Contracts\Events\Dispatcher;

trait EventTrait
{
    /**
     * The event dispatcher instance.
     *
     * @var \Illuminate\Contracts\Events\Dispatcher
     */
    protected $dispatcher;

    /**
     * The event dispatcher status.
     *
     * @var bool
     */
    protected $dispatcherStatus = true;

    /**
     * Returns the event dispatcher.
     *
     * @return \Illuminate\Contracts\Events\Dispatcher
     */
    public function getDispatcher()
    {
        return $this->dispatcher;
    }

    /**
     * Sets the event dispatcher instance.
     *
     * @param  \Illuminate\Contracts\Events\Dispatcher  $dispatcher
     * @return $this
     */
    public function setDispatcher(Dispatcher $dispatcher)
    {
        $this->dispatcher = $dispatcher;

        return $this;
    }

    /**
     * Returns the event dispatcher status.
     *
     * @return bool
     */
    public function getDispatcherStatus()
    {
        return $this->dispatcherStatus;
    }

    /**
     * Sets the event dispatcher status.
     *
     * @param  bool  $status
     * @return $this
     */
    public function setDispatcherStatus($status)
    {
        $this->dispatcherStatus = (bool) $status;

        return $this;
    }

    /**
     * Enables the event dispatcher.
     *
     * @return $this
     */
    public function enableDispatcher()
    {
        return $this->setDispatcherStatus(true);
    }

    /**
     * Disables the event dispatcher.
     *
     * @return $this
     */
    public function disableDispatcher()
    {
        return $this->setDispatcherStatus(false);
    }

    /**
     * Fires an event.
     *
     * @param  string  $event
     * @param  mixed  $payload
     * @param  bool  $halt
     * @return mixed
     */
    protected function fireEvent($event, $payload = [], $halt = false)
    {
        $dispatcher = $this->dispatcher;

        $status = $this->dispatcherStatus;

        if ( ! $dispatcher || $status === false) {
            return;
        }

        $method = $halt ? 'until' : 'fire';

        return $dispatcher->{$method}($event, $payload);
    }
}