<?php

namespace App\Jobs;

use App\Enums\PlatformEnum;
use App\Exceptions\PlatformAuthException;
use App\Modules\Lemmy\Services\LemmyApiService;
use Exception;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Queue\Queueable;
use Illuminate\Support\Facades\Cache;

class SyncChannelPostsJob implements ShouldQueue
{
    use Queueable;

    public function __construct(
        private readonly PlatformEnum $platform,
        private readonly string $channelId,
        private readonly string $channelName
    ) {
        $this->onQueue('lemmy-posts');
    }

    public static function dispatchForLemmy(): void
    {
        $communityId = config('lemmy.community_id');
        $communityName = config('lemmy.community');

        if ($communityId && $communityName) {
            self::dispatch(PlatformEnum::LEMMY, (string) $communityId, $communityName);
        } else {
            logger()->warning('Cannot dispatch Lemmy sync job: missing community configuration');
        }
    }

    public function handle(): void
    {
        if ($this->platform === PlatformEnum::LEMMY) {
            $this->syncLemmyChannelPosts();
        }
    }

    private function syncLemmyChannelPosts(): void
    {
        try {
            $api = new LemmyApiService(config('lemmy.instance'));
            $token = $this->getAuthToken($api);

            $api->syncChannelPosts($token, (int) $this->channelId, $this->channelName);

            logger()->info('Channel posts synced successfully', [
                'platform' => $this->platform->value,
                'channel_id' => $this->channelId,
                'channel_name' => $this->channelName
            ]);

        } catch (Exception $e) {
            logger()->error('Failed to sync channel posts', [
                'platform' => $this->platform->value,
                'channel_id' => $this->channelId,
                'error' => $e->getMessage()
            ]);
            
            throw $e;
        }
    }

    private function getAuthToken(LemmyApiService $api): string
    {
        $cachedToken = Cache::get('lemmy_jwt_token');
        
        if ($cachedToken) {
            return $cachedToken;
        }

        $username = config('lemmy.username');
        $password = config('lemmy.password');

        if (!$username || !$password) {
            throw new PlatformAuthException(PlatformEnum::LEMMY, 'Missing credentials');
        }

        $token = $api->login($username, $password);
        
        if (!$token) {
            throw new PlatformAuthException(PlatformEnum::LEMMY, 'Login failed');
        }

        Cache::put('lemmy_jwt_token', $token, 3600);
        
        return $token;
    }
}