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

    # Matomo tracking log format
    log_format matomo_tracking '$remote_addr - $remote_user [$time_local] '
                              '"$request" $status $body_bytes_sent '
                              '"$http_referer" "$http_user_agent" '
                              '$request_time';

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

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

        # Log paths and format
        access_log /var/log/nginx/deafgain-website/access.log matomo_tracking buffer=512k flush=1m;
        error_log /var/log/nginx/deafgain-website/error.log error;

        # Increased buffer sizes
        large_client_header_buffers 8 32k;
        client_header_buffer_size 32k;
        client_max_body_size 10M;
        client_body_buffer_size 128k;

        # 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 Strict-Transport-Security "max-age=31536000";

        # API endpoint
        location /api/contact {
            proxy_pass http://api:3000;
            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;
            
            access_log /var/log/nginx/deafgain-website/access.log matomo_tracking buffer=512k flush=1m;
            error_log /var/log/nginx/deafgain-website/error.log error;
            
            # 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 / {
            try_files $uri $uri/ /index.html;
            expires 1h;
            add_header Cache-Control "public, no-transform";
        }

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

        # Images handling
        location /images/ {
            alias /usr/share/nginx/html/images/;
            add_header Cache-Control "public, no-transform";
            types {
                image/png png;
                image/jpeg jpg jpeg;
                image/svg+xml svg;
            }
        }

        # Subtitles handling
        location /subtitles/ {
            alias /usr/share/nginx/html/subtitles/;
            add_header Cache-Control "public, no-transform";
            types {
                text/vtt vtt;
            }
        }

        # Transcriptions handling
        location /transcriptions/ {
            alias /usr/share/nginx/html/transcriptions/;
            add_header Cache-Control "public, no-transform";
            types {
                text/plain txt;
            }
        }

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

events {
    worker_connections 1024;
}