# Nginx конфиг для academic.jze9.ru
# Продакшн: SSL + proxy to FastAPI + React static

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
}

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

    # Логи
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent"';
    access_log /var/log/nginx/access.log main;

    sendfile        on;
    tcp_nopush      on;
    keepalive_timeout 65;

    # Gzip
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml;
    gzip_min_length 1024;
    gzip_vary on;

    # Лимиты
    client_max_body_size 100M;
    proxy_read_timeout 300s;
    proxy_connect_timeout 30s;
    proxy_send_timeout 300s;

    # Upstream
    upstream api {
        server api:8000;
        keepalive 32;
    }

    # HTTP → HTTPS редирект
    server {
        listen 80;
        server_name academic.jze9.ru;
        return 301 https://$server_name$request_uri;
    }

    # HTTPS основной сервер
    server {
        listen 443 ssl http2;
        server_name academic.jze9.ru;

        # SSL (Let's Encrypt)
        ssl_certificate     /etc/letsencrypt/live/academic.jze9.ru/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/academic.jze9.ru/privkey.pem;

        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;
        ssl_prefer_server_ciphers off;
        ssl_session_cache   shared:SSL:10m;
        ssl_session_timeout 1d;

        # HSTS
        add_header Strict-Transport-Security "max-age=63072000" always;

        # Security headers
        add_header X-Content-Type-Options nosniff;
        add_header X-Frame-Options DENY;
        add_header X-XSS-Protection "1; mode=block";

        # ── API proxy ──────────────────────────────────────────────────────────
        location /api/ {
            proxy_pass http://api/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_set_header Connection "";
        }

        # ── WebSocket ──────────────────────────────────────────────────────────
        location /ws/ {
            proxy_pass http://api/ws/;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_read_timeout 86400;
        }

        # ── React SPA (статика) ────────────────────────────────────────────────
        root /var/www/academic;
        index index.html;

        location / {
            try_files $uri $uri/ /index.html;
            expires 1d;
            add_header Cache-Control "public, no-transform";
        }

        # Кэшировать статические ресурсы
        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff2|woff)$ {
            expires 30d;
            add_header Cache-Control "public, immutable";
        }
    }
}