worker_processes auto;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
}

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

    access_log /var/log/nginx/access.log;

    # Increase max body size for image uploads
    client_max_body_size 50M;

    server {
        listen 0.0.0.0:443 ssl;
        server_name _;

        ssl_certificate     /etc/nginx/certs/cert.pem;
        ssl_certificate_key /etc/nginx/certs/key.pem;
        ssl_protocols       TLSv1.2 TLSv1.3;
        ssl_ciphers         HIGH:!aNULL:!MD5;

        # Frontend static files
        location / {
            root /usr/share/nginx/html;
            index index.html;
            try_files $uri $uri/ /index.html;
        }

        # Backend API proxy - uses docker service name
        location /api/ {
            proxy_pass http://backend:8000;
            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;

            # Timeout settings for slow AI responses
            proxy_connect_timeout 60s;
            proxy_send_timeout 120s;
            proxy_read_timeout 120s;
        }
    }

    # Redirect HTTP to HTTPS
    server {
        listen 0.0.0.0:80;
        server_name _;
        return 301 https://$host$request_uri;
    }
}