<?php

namespace App\Jobs;

use App\Models\NotificationThrottle;
use App\Models\ScheduledDatabaseBackup;
use App\Models\TeamInvitation;
use App\Models\User;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldBeEncrypted;
use Illuminate\Contracts\Queue\ShouldBeUnique;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Queue\Middleware\WithoutOverlapping;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Log;

class CleanupInstanceStuffsJob implements ShouldBeEncrypted, ShouldBeUnique, ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    public $timeout = 60;

    /**
     * Releases the unique lock of a killed worker after one run (the timeout), so the next run every one or
     * two minutes is not blocked until the queue retry_after.
     */
    public int $uniqueFor = 60;

    public function __construct() {}

    public function middleware(): array
    {
        return [(new WithoutOverlapping('cleanup-instance-stuffs'))->expireAfter(60)->dontRelease()];
    }

    public function handle(): void
    {
        try {
            $this->cleanupInvitationLink();
            $this->cleanupExpiredEmailChangeRequests();
            $this->enforceBackupRetention();
            $this->deleteOrphanedNotificationThrottles();
        } catch (\Throwable $e) {
            Log::error('CleanupInstanceStuffsJob failed with error: '.$e->getMessage());
        }
    }

    private function cleanupInvitationLink()
    {
        $invitation = TeamInvitation::all();
        foreach ($invitation as $item) {
            $item->isValid();
        }
    }

    private function cleanupExpiredEmailChangeRequests()
    {
        User::whereNotNull('email_change_code_expires_at')
            ->where('email_change_code_expires_at', '<', now())
            ->update([
                'pending_email' => null,
                'email_change_code' => null,
                'email_change_code_expires_at' => null,
            ]);
    }

    private function deleteOrphanedNotificationThrottles(): void
    {
        if (! Cache::add('notification-throttle-orphan-cleanup', true, 3600)) {
            return;
        }

        try {
            NotificationThrottle::deleteOrphans();
        } catch (\Throwable $e) {
            Log::error('Failed to delete orphaned notification throttles: '.$e->getMessage());
            Cache::forget('notification-throttle-orphan-cleanup');
        }
    }

    private function enforceBackupRetention(): void
    {
        if (! Cache::add('backup-retention-enforcement', true, 1800)) {
            return;
        }

        try {
            $backups = ScheduledDatabaseBackup::where('enabled', true)->get();
            foreach ($backups as $backup) {
                try {
                    removeOldBackups($backup);
                } catch (\Throwable $e) {
                    Log::warning('Failed to enforce retention for backup '.$backup->id.': '.$e->getMessage());
                }
            }
        } catch (\Throwable $e) {
            Log::error('Failed to enforce backup retention: '.$e->getMessage());
            Cache::forget('backup-retention-enforcement');
        }
    }
}