<?php

/**
 * @package     Dotclear
 *
 * @copyright   Olivier Meunier & Association Dotclear
 * @copyright   AGPL-3.0
 */
declare(strict_types=1);

namespace Dotclear\Plugin\Uninstaller\Cleaner;

use Dotclear\App;
use Dotclear\Database\Statement\DeleteStatement;
use Dotclear\Database\Statement\SelectStatement;
use Dotclear\Plugin\Uninstaller\{
    CleanerParent,
    ActionDescriptor,
    CleanerDescriptor,
    ValueDescriptor
};

/**
 * @brief   Cleaner for Dotclear modules versions.
 * @ingroup Uninstaller
 *
 * It allows modules to delete their versions
 * from Dotclear App::version()::VERSION_TABLE_NAME database table.
 */
class Versions extends CleanerParent
{
    public function __construct()
    {
        parent::__construct(new CleanerDescriptor(
            id:   'versions',
            name: __('Versions'),
            desc: __('Versions registered in table "version" of Dotclear'),
            actions: [
                // delete $ns version
                new ActionDescriptor(
                    id:      'delete',
                    query:   __('delete "%s" version number'),
                    success: __('"%s" version number deleted.'),
                    error:   __('Failed to delete "%s" version number.'),
                    select:  __('delete selected versions numbers'),
                    default: true
                ),
            ]
        ));
    }

    public function distributed(): array
    {
        return array_merge(
            ['core'],
            explode(',', App::config()->distributedThemes()),
            explode(',', App::config()->distributedPlugins())
        );
    }

    public function values(): array
    {
        $sql = new SelectStatement();
        $rs  = $sql
            ->from(App::db()->con()->prefix() . App::version()::VERSION_TABLE_NAME)
            ->columns(['module', 'version'])
            ->order('module ASC')
            ->select();

        if (is_null($rs) || $rs->isEmpty()) {
            return [];
        }

        $stack = [];
        while ($rs->fetch()) {
            $module  = $rs->strField('module');
            $version = $rs->strField('version');
            if ($module !== '' && $version !== '') {
                $stack[] = new ValueDescriptor(
                    ns:    $module,
                    id:    $version,
                    count: 1
                );
            }
        }

        return $stack;
    }

    public function execute(string $action, string $ns): bool
    {
        if ($action === 'delete') {
            $sql = new DeleteStatement();
            $sql
                ->from(App::db()->con()->prefix() . App::version()::VERSION_TABLE_NAME)
                ->where('module = ' . $sql->quote($ns))
                ->delete();

            return true;
        }

        return false;
    }
}
