# ═══════════════════════════════════════════════════════════════
# FLUX SRL — Nginx Site Configuration
# Phase 1: HTTP only (SSL added after certbot runs)
# ═══════════════════════════════════════════════════════════════

limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;
limit_req_zone $binary_remote_addr zone=login:10m rate=3r/m;

upstream nextjs {
    server app:3000;
    keepalive 32;
}

server {
    listen 80;
    server_name rf-flux.com www.rf-flux.com;

    # Let's Encrypt challenge (keep this even after SSL)
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    # Static assets: Next.js hashed (immutable cache)
    location /_next/static/ {
        proxy_pass http://nextjs;
        expires 365d;
        add_header Cache-Control "public, immutable";
        access_log off;
    }

    # Static assets: footage, GLB models
    location /footage/ {
        proxy_pass http://nextjs;
        expires 30d;
        add_header Cache-Control "public";
        access_log off;
    }

    # CMS Admin (strict rate limiting)
    location /hq-command/ {
        limit_req zone=login burst=5 nodelay;
        proxy_pass http://nextjs;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    # FluxAI Chat API (streaming + rate limited)
    location /api/chat {
        limit_req zone=api burst=20 nodelay;
        proxy_pass http://nextjs;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_http_version 1.1;
        proxy_set_header Connection '';
        proxy_buffering off;
        proxy_cache off;
        proxy_read_timeout 120s;
    }

    # Health check
    location /api/health {
        proxy_pass http://nextjs;
        access_log off;
    }

    # Default
    location / {
        proxy_pass http://nextjs;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}