import './env.js';
import { createApp } from './app.js';
import { initDb } from './db/index.js';
import { startHealthChecker } from './services/health.js';
const PORT = process.env.PORT ?? 3001;
// Dual-stack ('::') by default so the dashboard is reachable over both IPv4
// and IPv6 (e.g. IPv6-enabled Docker networks — #180). Hosts with IPv6
// disabled fall back to IPv4-only below; HOST overrides the default outright.
const HOST = process.env.HOST ?? '::';
async function main() {
    initDb();
    const app = createApp();
    const onReady = (host) => () => {
        const display = host.includes(':') ? `[${host}]` : host;
        console.log(`Server running on http://${display}:${PORT}`);
        console.log(`Proxy endpoint: http://${display}:${PORT}/v1/chat/completions`);
        startHealthChecker();
    };
    const server = app.listen(Number(PORT), HOST, onReady(HOST));
    server.on('error', (err) => {
        // The default '::' bind fails where IPv6 is disabled (kernel
        // ipv6.disable=1 and the like) — retry IPv4-only rather than dying.
        // Anything else (EADDRINUSE, an explicit HOST that can't bind) keeps the
        // fail-fast posture documented in main().catch below.
        if (!process.env.HOST && (err.code === 'EAFNOSUPPORT' || err.code === 'EADDRNOTAVAIL')) {
            console.warn('[server] IPv6 unavailable on this host — falling back to 0.0.0.0 (IPv4-only)');
            app.listen(Number(PORT), '0.0.0.0', onReady('0.0.0.0'));
            return;
        }
        console.error('\n[server] Failed to start:\n  ' + (err?.message ?? err) + '\n');
        process.exit(1);
    });
}
main().catch((err) => {
    // A boot failure (e.g. a missing production ENCRYPTION_KEY) must exit
    // non-zero rather than leaving a half-initialized process that never starts
    // listening — that silent state is what surfaces in the client as
    // "Can't reach the server".
    console.error('\n[server] Failed to start:\n  ' + (err?.message ?? err) + '\n');
    process.exit(1);
});
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