<?php

use dokuwiki\Extension\SyntaxPlugin;
use dokuwiki\plugin\luxtools\Crawler;
use dokuwiki\plugin\luxtools\Output;
use dokuwiki\plugin\luxtools\Path;

/**
 * LuxTools Plugin: Directory syntax.
 *
 * Lists the direct children (folders and files) of a given path.
 * Always renders as a table.
 */
class syntax_plugin_luxtools_directory extends SyntaxPlugin
{
    /** @inheritdoc */
    public function getType()
    {
        return 'substition';
    }

    /** @inheritdoc */
    public function getPType()
    {
        return 'block';
    }

    /** @inheritdoc */
    public function getSort()
    {
        return 222;
    }

    /** @inheritdoc */
    public function connectTo($mode)
    {
        $this->Lexer->addSpecialPattern('\{\{directory>.+?\}\}', $mode, 'plugin_luxtools_directory');
    }

    /** @inheritdoc */
    public function handle($match, $state, $pos, Doku_Handler $handler)
    {
        global $INPUT;

        // do not allow the syntax in discussion plugin comments
        if (!$this->getConf('allow_in_comments') && $INPUT->has('comment')) {
            return false;
        }

        $match = substr($match, strlen('{{directory>'), -2);
        [$path, $flags] = explode('&', $match, 2);

        // load default config options
        $flags = $this->getConf('defaults') . '&' . $flags;
        $flags = explode('&', $flags);

        $params = [
            'sort' => 'name',
            'order' => 'asc',
            'style' => 'list',
            'tableheader' => 0,
            'recursive' => 0,
            'titlefile' => '_title.txt',
            'cache' => 0,
            'randlinks' => 0,
            'showsize' => 0,
            'showdate' => 0,
            'listsep' => ', ',
        ];

        foreach ($flags as $flag) {
            [$name, $value] = sexplode('=', $flag, 2, '');
            $params[trim($name)] = trim(trim($value), '"'); // quotes can be used to keep whitespace
        }

        // directory path (no glob/pattern)
        $path = Path::cleanPath($path, true);

        return [$path, $params];
    }

    /** @inheritdoc */
    public function render($format, Doku_Renderer $renderer, $data)
    {
        if ($data === false) return false;
        [$path, $params] = $data;

        if ($format != 'xhtml' && $format != 'odt') {
            return false;
        }

        // disable caching
        if ($params['cache'] === 0) {
            $renderer->nocache();
        }

        try {
            $pathHelper = new Path($this->getConf('paths'));
            $pathInfo = $pathHelper->getPathInfo($path);
        } catch (Exception $e) {
            $renderer->cdata('[n/a: ' . $this->getLang('error_outsidejail') . ']');
            return true;
        }

        $crawler = new Crawler($this->getConf('extensions'));
        $crawler->setSortBy($params['sort']);
        $crawler->setSortReverse($params['order'] === 'desc');

        $items = $crawler->listDirectory(
            $pathInfo['root'],
            $pathInfo['local'],
            $params['titlefile']
        );

        if ($items == []) {
            $renderer->cdata('[n/a: ' . $this->getLang('error_nomatch') . ']');
            return true;
        }

        // Always render as table style
        $params['style'] = 'table';

        $output = new Output($renderer, $pathInfo['root'], $pathInfo['web'], $items);
        $output->renderAsFlatTable($params);
        return true;
    }
}