user nginx;
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;

    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent" "$http_x_forwarded_for"';

    access_log /var/log/nginx/access.log main;
    
    sendfile on;
    keepalive_timeout 65;

    server { 
        listen 80;
        server_name localhost;
        
        root /usr/share/nginx/html;
        index index.html;

        # Frontend routes
        location / {
            try_files $uri $uri/ /index.html;
            expires -1;
            add_header Cache-Control "no-store, no-cache, must-revalidate";
        }
        
        # Backend API proxy
        location /api/ {
            proxy_pass http://backend:8000/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_connect_timeout 60s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
        }
    }
}