server {
    listen 80;
    listen [::]:80;
    server_name aitbc.bubuit.net localhost;
    
    # Forward all requests to the AITBC container
    location / {
        proxy_pass http://10.1.223.93;
        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;
        
        # WebSocket support
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        
        # Timeouts
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
        
        # Buffer settings
        proxy_buffering on;
        proxy_buffer_size 4k;
        proxy_buffers 8 4k;
    }
    
    # Agent API - CORS enabled for cross-origin agent access
    location /agent/ {
        proxy_pass http://10.1.223.93/agent/;
        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;
        
        # CORS headers for agent access
        add_header Access-Control-Allow-Origin * always;
        add_header Access-Control-Allow-Methods "GET, OPTIONS" always;
        add_header Access-Control-Allow-Headers "Content-Type, Accept" always;
        add_header Access-Control-Max-Age 86400 always;
        
        # Handle preflight requests
        if ($request_method = 'OPTIONS') {
            return 204;
        }
    }
    
    # RPC endpoints - CORS enabled
    location /rpc/ {
        proxy_pass http://10.1.223.93:8006/rpc/;
        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;
        
        # CORS headers for agent access
        add_header Access-Control-Allow-Origin * always;
        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS" always;
        add_header Access-Control-Allow-Headers "Content-Type, Accept, Authorization" always;
        add_header Access-Control-Max-Age 86400 always;
        
        # Handle preflight requests
        if ($request_method = 'OPTIONS') {
            return 204;
        }
    }
    
    # Health check endpoint
    location /health {
        proxy_pass http://10.1.223.93/health;
        access_log off;
    }
    
    # Logging
    access_log /var/log/nginx/aitbc-proxy.access.log;
    error_log /var/log/nginx/aitbc-proxy.error.log;
}

# HTTPS configuration (for future SSL setup)
# server {
#     listen 443 ssl http2;
#     listen [::]:443 ssl http2;
#     server_name aitbc.bubuit.net;
#     
#     ssl_certificate /etc/ssl/certs/aitbc.bubuit.net.crt;
#     ssl_certificate_key /etc/ssl/private/aitbc.bubuit.net.key;
#     
#     location / {
#         proxy_pass http://10.1.223.93;
#         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;
#     }
# }