##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# https://www.nginx.com/resources/wiki/start/
# https://www.nginx.com/resources/wiki/start/topics/tutorials/config_pitfalls/
# https://wiki.debian.org/Nginx/DirectoryStructure
#
# In most cases, administrators will remove this file from sites-enabled/ and
# leave it as reference inside of sites-available where it will continue to be
# updated by the nginx packaging team.
#
# This file will automatically load configuration files provided by other
# applications, such as Drupal or Wordpress. These applications will be made
# available underneath a path with that package name, such as /drupal8.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

# Default server configuration

server {
    listen 5.129.192.136:443 ssl http2 default_server;
    # если нужен IPv6, добавь: listen [::]:443 ssl http2;
    server_name myvpntest.online;

    root /var/www/html;
    index index.html;

    # --- SSL (self-signed) ---
    ssl_certificate     /etc/letsencrypt/live/maxru.zpmu.xyz/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/maxru.zpmu.xyz/privkey.pem;

    # базовые SSL-параметры
    ssl_protocols       TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers on;
    ssl_session_cache   shared:SSL:10m;
    ssl_session_timeout 10m;

    # заголовки безопасности (по желанию)
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
    add_header X-Content-Type-Options nosniff;
    add_header X-Frame-Options DENY;

    # таймауты (разумные)
    keepalive_timeout 1h;
    client_header_timeout 1h;
    client_body_timeout 1h;

    # ------------- gRPC -------------
    # gRPC: подход для /TestChatGRPC и /%2FTestChatGRPC/...
    location ~* ^/(?:%2FTestChatGRPC|TestChatGRPC)(?:/.*)?$ {
    # мягкая проверка content-type (поддерживает application/grpc, application/grpc+proto и др.)
    if ($content_type !~* "grpc") {
        return 404;
    }

    client_max_body_size 0;
    client_body_buffer_size 512k;

    grpc_set_header Host $host;
    grpc_set_header X-Real-IP $remote_addr;
    grpc_set_header TE "trailers";

    grpc_read_timeout 1h;
    grpc_send_timeout 1h;

    grpc_pass grpc://127.0.0.1:8888;
}


    # ------------- WebSocket -------------
    location = /TestChatWS {
        proxy_pass http://127.0.0.1:8889;
        proxy_http_version 1.1;

        # корректная обработка Upgrade
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $http_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;

        # низкая задержка
        proxy_buffering off;
        proxy_read_timeout 1h;
        proxy_send_timeout 1h;
    }

    # простая index-страница
    location / {
        try_files $uri $uri/ =404;
    }
}