yfix/yf

<?php

class sample_demo
{
    /***/
    public function _init()
    {
        _class('core_api')->add_syntax_highlighter();
    }

    /***/
    public function _hook_side_column()
    {
        $items = [];
        $url = url('/@object');
        $methods = $this->_get_demos();
        $sample_methods = get_class_methods($this);
        sort($methods);
        foreach ((array) $sample_methods as $name) {
            if (in_array($name, $methods)) {
                continue;
            }
            $methods[] = $name;
        }
        foreach ((array) $methods as $name) {
            if ($name == 'show' || substr($name, 0, 1) == '_') {
                continue;
            }
            $items[] = [
                'name' => $name,
                'link' => url('/@object/@action/' . urlencode($name)),
            ];
        }
        return _class('html')->navlist($items);
    }

    /***/
    public function show()
    {
        $docs = _class('docs');
        $dir = $docs->demo_dir;
        $dir_len = strlen($dir);
        $ext = '.php';
        $ext_len = strlen($ext);

        $names = $this->_get_demos($dir);
        ksort($names);

        $name = preg_replace('~[^a-z0-9/_-]+~ims', '', $_GET['id']);
        if (strlen($name)) {
            $f = $dir . $name . '.php';
            if ( ! file_exists($f)) {
                return _404('Not found');
            }
            $body = include $f;
            if (is_callable($body)) {
                $self_source = _class('core_api')->get_function_source($body);
                $body = $body();
            } else {
                $self_source = [
                    'name' => $name,
                    'file' => $f,
                    'line_start' => 1,
                    'source' => $body,
                ];
            }
            $prev = '';
            $next = '';
            $i = 0;
            foreach ((array) $names as $_name) {
                if ($name !== $_name) {
                    $prev = $_name;
                } elseif ($name === $_name) {
                    $next = current(array_slice($names, $i + 1, 1));
                    break;
                }
                $i++;
            }
            $name_html = preg_replace('~[^0-9a-z_-]~ims', '', $name);
            $header =
                '<div id="head_' . $name_html . '" class="panel">
                    <div class="panel-heading">
                        <h1 class="panel-title">
                            <a href="' . url('/@object/@action/' . urlencode($name)) . '">' . $name . '</a>
                            <div class="pull-right">'
                                . _class('core_api')->_github_link_btn($self_source)
                                . '<button class="btn btn-primary btn-xs" data-toggle="collapse" data-target="#func_self_source_' . $name_html . '"><i class="fa fa-file-text-o"></i> source</button> '
                                . ($prev ? '<a href="' . url('/@object/@action/' . urlencode($prev)) . '" class="btn btn-primary btn-xs">&lt;</a> ' : '')
                                . ($next ? '<a href="' . url('/@object/@action/' . urlencode($next)) . '" class="btn btn-primary btn-xs">&gt;</a> ' : '')
                            . '</div>
                        </h1>
                    </div>
                    <div id="func_self_source_' . $name_html . '" class="panel-body collapse out"><pre class="prettyprint lang-php"><code>' . _prepare_html($self_source['source']) . '</code></pre></div> '
                    . ($target_source['source'] ? '<div id="func_target_source_' . $name_html . '" class="panel-body collapse out"><pre class="prettyprint lang-php"><code>' . (_prepare_html($target_source['source'])) . '</code></pre></div> ' : '')
                . '</div>';
            return implode(PHP_EOL, [$header, '<section class="page-contents">' . tpl()->parse_string($body, $replace, 'demo_' . $name) . '</section>']);
        }
        $url = rtrim(url('/@object/@action/')) . '/';
        $data = [];
        foreach ((array) $names as $name) {
            $data[$name] = [
                'name' => $name,
                'link' => $url . urlencode($name),
            ];
        }
        ksort($data);
        return html()->li($data);
    }

    /***/
    public function _get_demos($dir = '')
    {
        $dir = $dir ?: _class('docs')->demo_dir;
        $dir_len = strlen($dir);
        $ext = '.php';
        $ext_len = strlen($ext);
        $names = [];
        foreach ((array) _class('dir')->rglob($dir) as $path) {
            if (substr($path, -$ext_len) !== $ext) {
                continue;
            }
            $name = substr($path, $dir_len, -$ext_len);
            $names[$name] = $name;
        }
        return $names;
    }
}