upstream zfs_backend {
    server 127.0.0.1:8000;
}

# Redirect HTTP zu HTTPS auf Port 8090
server {
    listen 80;
    listen [::]:80;
    server_name _;
    return 301 https://$host:8090$request_uri;
}

# HTTPS Server auf Port 8090
server {
    listen 8090 ssl http2;
    listen [::]:8090 ssl http2;
    server_name _;

    # SSL-Zertifikate
    ssl_certificate /opt/zfs-manager/ssl/zfs-manager.crt;
    ssl_certificate_key /opt/zfs-manager/ssl/zfs-manager.key;

    # SSL-Sicherheit
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;

    # Gzip compression
    gzip on;
    gzip_types text/plain text/css application/json application/javascript;

    root /opt/zfs-manager/frontend;

    # API endpoints - proxy to FastAPI
    location /api/ {
        proxy_pass http://zfs_backend;
        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;
    }

    # API Docs
    location /docs {
        proxy_pass http://zfs_backend;
        proxy_set_header Host $host;
    }

    location /openapi.json {
        proxy_pass http://zfs_backend;
        proxy_set_header Host $host;
    }

    # Static assets - serve directly with long cache
    location /_next/static/ {
        expires 365d;
        add_header Cache-Control "public, immutable";
    }

    location /public/ {
        expires 7d;
    }

    # Frontend SPA - fallback to index.html
    location / {
        try_files $uri $uri.html $uri/ /index.html;
        expires 0;
        add_header Cache-Control "no-cache, no-store, must-revalidate";
    }
}