import 'dotenv/config';
// v1.1.2 - Deployment Trigger
import { buildApp } from './app';
import { logger } from './logger';
import { startCleanupCron } from './services/cleanup';

async function start() {
    try {
        const server = await buildApp();
        const port = Number(process.env.PORT) || 3001;
        const host = process.env.NODE_ENV === 'production' ? '0.0.0.0' : 'localhost';

        await server.listen({ port, host });
        logger.info(`🚀 API Gateway running on http://${host}:${port}`);

        // Meta Graph API version observability
        const metaVersion = process.env.META_GRAPH_API_VERSION || 'v22.0';
        const versionNum = parseInt(metaVersion.replace(/\D/g, ''), 10);
        if (versionNum < 21) {
            logger.warn(`⚠️  [META] Graph API version is ${metaVersion} — likely DEPRECATED (< v21.0). Set META_GRAPH_API_VERSION to v22.0 or later to restore messaging_limit_tier.`);
        } else {
            logger.info(`✅ [META] Graph API version: ${metaVersion}`);
        }

        startCleanupCron();
    } catch (err) {
        logger.error({ err });
        process.exit(1);
    }
}

start();