server {
    listen 80;
    listen [::]:80;
    server_name itformhelp.ru www.itformhelp.ru;
    
    location /.well-known/acme-challenge/ {
        allow all;
        root /var/www/html;
        try_files $uri =404;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

server {
    listen 443 default_server ssl;
    listen [::]:443 ssl;
    http2 on;
    
    server_name itformhelp.ru www.itformhelp.ru;

    ssl_certificate /etc/letsencrypt/live/itformhelp.ru/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/itformhelp.ru/privkey.pem;
    
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:50m;
    ssl_session_tickets off;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;

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

    location / {
        try_files $uri $uri/ /index.html;
        expires -1;
        add_header Cache-Control "no-store, no-cache, must-revalidate";
    }

    location /api/ {
        proxy_pass http://backend:8000/api/;
        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;
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }
}