events {
    worker_connections 1024;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    upstream django_app {
        server django:8000;
    }

    server {
        listen 80;
        server_name _;

        # Security headers
        add_header X-Frame-Options DENY;
        add_header X-Content-Type-Options nosniff;
        add_header X-XSS-Protection "1; mode=block";

        # Proxy settings
        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;

        # Timeouts
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;

        # Serve static files (CSS, JS, images)
        location /static/ {
            alias /app/staticfiles/;
            expires 30d;
            add_header Cache-Control "public, immutable";
        }

        # Redirect /username/ to /username/social.org
        location ~ ^/([a-zA-Z0-9_-]+)/$ {
            return 301 $scheme://$host/$1/social.org;
        }

        # Serve static files directly (social.org files)
        location ~ ^/[a-zA-Z0-9_-]+/social\.org$ {
            # Try to serve from storage first, fallback to Django
            root /app;
            try_files $uri @django;

            # Cache control for social.org files
            add_header Cache-Control "public, max-age=60";
            add_header Content-Type "text/plain; charset=utf-8";
        }

        # Main location (API endpoints)
        location / {
            proxy_pass http://django_app;
        }

        # Django fallback for file serving
        location @django {
            proxy_pass http://django_app;
        }

        # Health check endpoint
        location /nginx-health {
            access_log off;
            return 200 "healthy\n";
            add_header Content-Type text/plain;
        }
    }

    # Basic Nginx settings
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    client_max_body_size 10M;  # Allow uploads up to 10MB

    # Logging
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    # GZIP compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/json
        application/javascript
        application/xml+rss
        application/atom+xml;
}