# Quantaris Finance — Nginx Configuration
server {
    listen 80;
    server_name localhost;
    root /usr/share/nginx/html;
    index index.html;

    # Security headers
    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;

    # Gzip
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml image/svg+xml;
    gzip_min_length 1000;

    # Static files
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Proxy API to backend
    location /api/ {
        proxy_pass http://api:3001;
        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_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_cache_bypass $http_upgrade;
    }

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

    # Block admin from external access (optional — remove in dev)
    # location /admin.html {
    #     allow 10.0.0.0/8;
    #     allow 192.168.0.0/16;
    #     deny all;
    # }

    # Error pages
    error_page 404 /index.html;
    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }
}