<?php

/*
 * This file is part of vaibhavpandeyvpz/phemail package.
 *
 * (c) Vaibhav Pandey <contact@vaibhavpandey.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.md.
 */

namespace Phemail\Message;

/**
 * Class Header
 */
class Header implements HeaderInterface
{
    /**
     * @var string
     */
    protected $value;

    /**
     * @var string[]
     */
    protected $attributes = [];

    /**
     * {@inheritdoc}
     */
    public function getValue()
    {
        return $this->value;
    }

    /**
     * @param  string  $value
     * @return static
     */
    public function withValue($value)
    {
        $clone = clone $this;
        $clone->value = $value;

        return $clone;
    }

    /**
     * {@inheritdoc}
     */
    public function getAttributes()
    {
        return $this->attributes;
    }

    /**
     * @param  string  $name
     * @param  string  $value
     * @return static
     */
    public function withAttribute($name, $value)
    {
        $clone = clone $this;
        $clone->attributes[$name] = $value;

        return $clone;
    }

    /**
     * {@inheritdoc}
     */
    public function getAttribute($name)
    {
        return array_key_exists($name, $this->attributes) ? $this->attributes[$name] : null;
    }
}