server {
    listen 80;
    server_name localhost;

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

    # Compressão Gzip
    gzip on;
    gzip_vary on;
    gzip_min_length 10240;
    gzip_proxied expired no-cache no-store private auth;
    gzip_types text/plain text/css text/xml text/javascript application/x-javascript application/xml application/javascript;
    gzip_disable "MSIE [1-6]\.";

    # Headers de Segurança
    add_header X-Frame-Options "SAMEORIGIN";
    add_header X-XSS-Protection "1; mode=block";
    add_header X-Content-Type-Options "nosniff";
    add_header Referrer-Policy "strict-origin-when-cross-origin";

    # SPA Routing (Single Page Application)
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Proxy reverso para WPPConnect (Resolve Mixed Content HTTPS -> HTTP)
    location /api-wpp/ {
        proxy_pass http://www.c2wpp.c2sistemas.com.br:22700/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host www.c2wpp.c2sistemas.com.br:22700;
        proxy_cache_bypass $http_upgrade;
        proxy_read_timeout 90s;
    }

    # Cache de assets estáticos
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        expires 1y;
        add_header Cache-Control "public, no-transform";
    }

    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }
}