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<?php

class WP_REST_Response extends WP_HTTP_Response
{
    protected $links = array();
    protected $matched_route = '';
    protected $matched_handler = null;
    public function add_link($rel, $href, $attributes = array())
    {
        if (empty($this->links[$rel])) {
            $this->links[$rel] = array();
        }
        if (isset($attributes['href'])) {
            unset($attributes['href']);
        }
        $this->links[$rel][] = array('href' => $href, 'attributes' => $attributes);
    }
    public function remove_link($rel, $href = null)
    {
        if (!isset($this->links[$rel])) {
            return;
        }
        if ($href) {
            $this->links[$rel] = wp_list_filter($this->links[$rel], array('href' => $href), 'NOT');
        } else {
            $this->links[$rel] = array();
        }
        if (!$this->links[$rel]) {
            unset($this->links[$rel]);
        }
    }
    public function add_links($links)
    {
        foreach ($links as $rel => $set) {
            if (isset($set['href'])) {
                $set = array($set);
            }
            foreach ($set as $attributes) {
                $this->add_link($rel, $attributes['href'], $attributes);
            }
        }
    }
    public function get_links()
    {
        return $this->links;
    }
    public function link_header($rel, $link, $other = array())
    {
        $header = '<' . $link . '>; rel="' . $rel . '"';
        foreach ($other as $key => $value) {
            if ('title' === $key) {
                $value = '"' . $value . '"';
            }
            $header .= '; ' . $key . '=' . $value;
        }
        $this->header('Link', $header, false);
    }
    public function get_matched_route()
    {
        return $this->matched_route;
    }
    public function set_matched_route($route)
    {
        $this->matched_route = $route;
    }
    public function get_matched_handler()
    {
        return $this->matched_handler;
    }
    public function set_matched_handler($handler)
    {
        $this->matched_handler = $handler;
    }
    public function is_error()
    {
        return $this->get_status() >= 400;
    }
    public function as_error()
    {
        if (!$this->is_error()) {
            return null;
        }
        $error = new WP_Error();
        if (is_array($this->get_data())) {
            $data = $this->get_data();
            $error->add($data['code'], $data['message'], $data['data']);
            if (!empty($data['additional_errors'])) {
                foreach ($data['additional_errors'] as $err) {
                    $error->add($err['code'], $err['message'], $err['data']);
                }
            }
        } else {
            $error->add($this->get_status(), '', array('status' => $this->get_status()));
        }
        return $error;
    }
    public function get_curies()
    {
        $curies = array(array('name' => 'wp', 'href' => 'https://api.w.org/{rel}', 'templated' => true));
        $additional = apply_filters('rest_response_link_curies', array());
        return array_merge($curies, $additional);
    }
}