# ©AngelaMos | 2026
# prod.nginx

server {
    listen 80;
    listen [::]:80;
    server_name _;

    root /usr/share/nginx/html;
    index index.html;

    access_log /var/log/nginx/access.log main_timed buffer=32k flush=5s;
    error_log /var/log/nginx/error.log warn;

    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header Permissions-Policy "geolocation=(), microphone=(), camera=()" always;

    location /health {
        access_log off;
        return 200 "1";
        add_header Content-Type text/plain;
    }

    location ~ ^/api(/v1/(logs|alerts)/stream.*) {
        rewrite ^/api(/.*)$ $1 break;
        proxy_pass http://backend;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        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_buffering off;
        proxy_cache off;
        proxy_read_timeout 3600s;
        proxy_send_timeout 3600s;
        chunked_transfer_encoding off;
    }

    location /api/ {
        limit_req zone=api_limit burst=20 nodelay;
        limit_conn conn_limit 50;

        proxy_pass http://backend/;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        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_buffering on;
        proxy_buffers 8 32k;
        proxy_buffer_size 4k;

        proxy_connect_timeout 60s;
        proxy_send_timeout 30s;
        proxy_read_timeout 30s;
    }

    location /assets/ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        access_log off;
        try_files $uri =404;
    }

    location ~* \.(jpg|jpeg|png|gif|ico|svg|webp|avif|woff|woff2|ttf|eot|otf)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        access_log off;
    }

    location / {
        add_header Cache-Control "no-cache, must-revalidate";
        try_files $uri $uri/ /index.html;
    }

    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }
}