# Include this file inside the nginx http {} block.
# Replace server_name and certificate paths before deployment.
# All domains currently run in one modular FastAPI process.
upstream adcloud_events { server 127.0.0.1:8000; }
upstream adcloud_users { server 127.0.0.1:8000; }
upstream adcloud_ads { server 127.0.0.1:8000; }
upstream adcloud_identity { server 127.0.0.1:8000; }
upstream adcloud_api { server 127.0.0.1:8000; }

server {
    listen 443 ssl;
    server_name api.adcloud.example;

    ssl_certificate /etc/nginx/tls/adcloud/fullchain.pem;
    ssl_certificate_key /etc/nginx/tls/adcloud/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;

    client_max_body_size 1m;
    proxy_http_version 1.1;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    # This gateway is the public edge: overwrite untrusted forwarded headers.
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header Connection "";
    proxy_connect_timeout 5s;
    proxy_read_timeout 30s;
    proxy_send_timeout 30s;

    # No URI suffix on proxy_pass: preserve /v1/... and query strings.
    # Exact roots prevent nginx from redirecting POST /v1/events to a trailing slash.
    location = /v1/events { proxy_pass http://adcloud_events; }
    location = /v1/users { proxy_pass http://adcloud_users; }
    location = /v1/ads { proxy_pass http://adcloud_ads; }
    location = /v1/identity { proxy_pass http://adcloud_identity; }
    location ^~ /v1/events/ { proxy_pass http://adcloud_events; }
    location ^~ /v1/users/ { proxy_pass http://adcloud_users; }
    location ^~ /v1/ads/ { proxy_pass http://adcloud_ads; }
    location ^~ /v1/identity/ { proxy_pass http://adcloud_identity; }
    # Future domains are handled by the versioned FastAPI router.
    location /v1/ { proxy_pass http://adcloud_api; }
    location = /health { proxy_pass http://adcloud_api; }
    location / { return 404; }
}