worker_processes 1;
error_log /tmp/nginx-error.log warn;
pid /tmp/nginx.pid;

events {
    worker_connections 512;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    access_log    /tmp/nginx-access.log;
    sendfile      on;
    keepalive_timeout 65;

    # Upstream services (all internal)
    upstream frontend {
        server 127.0.0.1:3000;
    }

    upstream backend {
        server 127.0.0.1:8000;
    }

    upstream neo4j_browser {
        server 127.0.0.1:7474;
    }

    server {
        listen 7860;
        server_name _;

        client_max_body_size 20M;

        # ── FastAPI backend ────────────────────────────────────────────────
        # Routes: /api/*, /docs, /openapi.json, /health, /seed, /setup
        location /api/ {
            proxy_pass         http://backend/api/;
            proxy_http_version 1.1;
            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_read_timeout 120s;
        }

        location ~ ^/(docs|openapi\.json|redoc|health|seed|setup|ingest_patient|match_trials|enrich_graph|rag_query|setup_sample_data) {
            proxy_pass         http://backend;
            proxy_http_version 1.1;
            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_read_timeout 120s;
        }

        # ── Neo4j Browser (admin only — /neo4j/) ──────────────────────────
        location /neo4j/ {
            proxy_pass         http://neo4j_browser/;
            proxy_http_version 1.1;
            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;
        }

        # ── Next.js frontend (catch-all) ───────────────────────────────────
        location / {
            proxy_pass         http://frontend;
            proxy_http_version 1.1;
            proxy_set_header   Upgrade           $http_upgrade;
            proxy_set_header   Connection        "upgrade";
            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_read_timeout 60s;
        }
    }
}