<?php

/*
 * Copyright (c) 2008-2023 Mark C. Prins <mprins@users.sf.net>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * @phpcs:disable Squiz.Classes.ValidClassName.NotCamelCaps
 */
use dokuwiki\Extension\AdminPlugin;
use dokuwiki\Logger;

/**
 * DokuWiki Plugin openlayersmap (Admin Component).
 * This component purges the cached tiles and maps.
 *
 * @author Mark Prins
 */
class admin_plugin_openlayersmap_purge extends AdminPlugin
{
    /**
     * (non-PHPdoc)
     * @see DokuWiki_Admin_Plugin::getMenuSort()
     */
    public function getMenuSort(): int
    {
        return 800;
    }

    public function getMenuIcon(): string
    {
        $plugin = $this->getPluginName();
        return DOKU_PLUGIN . $plugin . '/admin/purge.svg';
    }

    /**
     * (non-PHPdoc)
     * @see DokuWiki_Admin_Plugin::handle()
     */
    public function handle(): void
    {
        global $conf;
        if (!isset($_REQUEST['continue']) || !checkSecurityToken()) {
            return;
        }
        if (isset($_REQUEST['purgetiles'])) {
            $path = $conf['cachedir'] . '/olmaptiles';
            if ($this->rrmdir($path)) {
                msg($this->getLang('admin_purged_tiles'), 0);
            }
        }
        if (isset($_REQUEST['purgemaps'])) {
            $path = $conf['mediadir'] . '/olmapmaps';
            if ($this->rrmdir($path)) {
                msg($this->getLang('admin_purged_maps'), 0);
            }
        }
    }

    /**
     * Recursively delete the directory.
     * @param string $sDir directory path
     * @return boolean true when succesful
     */
    private function rrmdir(string $sDir): bool
    {
        if (is_dir($sDir)) {
            Logger::debug('admin_plugin_openlayersmap_purge::rrmdir: recursively removing path: ', $sDir);
            $sDir = rtrim($sDir, '/');
            $oDir = dir($sDir);
            while (($sFile = $oDir->read()) !== false) {
                if ($sFile !== '.' && $sFile !== '..') {
                    (!is_link("$sDir/$sFile") && is_dir("$sDir/$sFile")) ?
                        $this->rrmdir("$sDir/$sFile") : unlink("$sDir/$sFile");
                }
            }
            $oDir->close();
            rmdir($sDir);
            return true;
        }
        return false;
    }

    /**
     * (non-PHPdoc)
     * @see DokuWiki_Admin_Plugin::html()
     */
    public function html(): void
    {
        echo $this->locale_xhtml('admin_intro');
        $form = new Doku_Form(['id' => 'olmap_purgeform', 'method' => 'post']);
        $form->addHidden('continue', 'go');

        $form->startFieldset($this->getLang('admin_tiles'));
        $form->addElement('<p>');
        $form->addElement(
            '<input id="purgetiles" name="purgetiles" type="checkbox" value="1" class="checkbox" />'
        );
        $form->addElement(
            '<label for="purgetiles" class="label">' . $this->getLang('admin_purge_tiles')
            . '</label>'
        );
        $form->addElement('</p>');
        $form->endFieldset();

        $form->startFieldset($this->getLang('admin_maps'));
        $form->addElement('<p>');
        $form->addElement('<input id="purgemaps" name="purgemaps" type="checkbox" value="1" class="checkbox" />');
        $form->addElement(
            '<label for="purgemaps" class="label">' . $this->getLang('admin_purge_maps') . '</label>'
        );
        $form->addElement('</p>');
        $form->endFieldset();

        $form->addElement(
            form_makeButton(
                'submit',
                'admin',
                $this->getLang('admin_submit'),
                ['accesskey' => 'p', 'title' => $this->getLang('admin_submit')]
            )
        );
        $form->printForm();
    }
}