<?php

namespace RomhackPlaza\Master\Service\Club;

use RomhackPlaza\Master\Entity\Club;
use XF\App;
use XF\Entity\User;
use XF\Service\AbstractService;

class ModeratorService extends AbstractService
{

    public const int MAX_MODS = 5;

    /**
     * @var Club
     */
    protected $club;

    /**
     * @var User
     */
    protected $user;

    public function __construct(App $app, Club $club, User $moderator)
    {
        parent::__construct($app);
        $this->club = $club;
        $this->user = $moderator;
    }

    protected function countMods( int $nodeId, int $excludeUserId = 0 )
    {
        return $this->finder('XF:ModeratorContent')
            ->where('content_type', 'node')
            ->where('content_id', $nodeId)
            ->where('user_id', '!=', $excludeUserId)
            ->total();
    }

    public function addModerator( string &$error ): bool
    {
        if( !$this->club->Forum || !$this->club->Forum->Node ) {
            $error = "No node linked to this club.";
            return false;
        }

        if( $this->countMods( $this->club->node_id, $this->club->user_id ) > self::MAX_MODS ) {
            $error = "The limit of 5 moderators has been reached.";
            return false;
        }

        $existingMod = $this->em()->findOne('XF:ModeratorContent', [
            'content_type' => 'node',
            'content_id' => $this->club->node_id,
            'user_id' => $this->user->user_id
        ]);
        if( $existingMod ){
            $error = "This user is already a moderator.";
            return false;
        }

        $modContent = $this->em()->create('XF:ModeratorContent');
        $modContent->content_type = 'node';
        $modContent->content_id = $this->club->node_id;
        $modContent->user_id = $this->user->user_id;
        $modContent->save();

        $permissionUpdater = \XF::app()->service('XF:UpdatePermissions');
        $permissionUpdater->setContent('node', $this->club->node_id);
        $permissionUpdater->setUser($this->user);
        $permissionUpdater->updatePermissions(Club::MOD_PERMISSIONS);

        \XF::app()->jobManager()->enqueueUnique('permissionRebuild', 'XF:PermissionRebuild');
        return true;
    }

    public function deleteModerator( string &$error ): bool
    {
        if( !$this->club->Forum || !$this->club->Forum->Node ) {
            $error = "No node linked to this club.";
            return false;
        }

        if( $this->user->user_id === $this->club->user_id ){
            $error = "You cannot delete yourself.";
            return false;
        }

        $mod = $this->em()->findOne('XF:ModeratorContent', [
            'content_type' => 'node',
            'content_id' => $this->club->node_id,
            'user_id' => $this->user->user_id
        ]);

        if( $mod ){
            $mod->delete();

            \XF::db()->delete('xf_permission_entry_content', 'content_type = ? AND content_id = ? AND user_id = ?', ['node', $this->club->node_id, $this->user->user_id]);

            \XF::app()->jobManager()->enqueueUnique('permissionRebuild', 'XF:PermissionRebuild');
        }

        return true;
    }
}