server {
    listen 804;
    server_name _;
    root /usr/share/nginx/html;
    index index.html;

    # Logging configuration for statistics
    access_log /var/log/nginx/deafgain-website/access.log combined;
    error_log /var/log/nginx/deafgain-website/error.log error;

    # Security headers
    add_header X-Frame-Options "SAMEORIGIN";
    add_header X-XSS-Protection "1; mode=block";
    add_header X-Content-Type-Options "nosniff";
    add_header Referrer-Policy "strict-origin-when-cross-origin";

    # Compression
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    # API endpoints
    location /api/contact {
        proxy_pass http://deafgain-website-api-1:3000/contact;
        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;
        
        # CORS headers
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
        
        # Handle OPTIONS method
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' '*';
            add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
            add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
            add_header 'Access-Control-Max-Age' 1728000;
            add_header 'Content-Type' 'text/plain; charset=utf-8';
            add_header 'Content-Length' 0;
            return 204;
        }
    }

    location /api/subscribe {
        proxy_pass http://deafgain-website-api-1:3000/subscribe;
        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;
        
        # CORS headers
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
        
        # Handle OPTIONS method
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' '*';
            add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
            add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
            add_header 'Access-Control-Max-Age' 1728000;
            add_header 'Content-Type' 'text/plain; charset=utf-8';
            add_header 'Content-Length' 0;
            return 204;
        }
    }

    # React app - serve static files
    location / {
        try_files $uri $uri/ /index.html;
        expires 1h;
        add_header Cache-Control "public, no-transform";
    }

    # Video files handling - serve from mounted directory
    location /videos/ {
        alias /usr/share/nginx/html/videos/;
        add_header Cache-Control "public, no-transform";
        add_header Accept-Ranges bytes;
        types {
            video/mp4 mp4;
        }
    }

    # Static asset caching
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|vtt|txt)$ {
        expires 30d;
        add_header Cache-Control "public, no-transform";
    }
}