#!/bin/bash
# scripts/setup-nginx.sh - Настройка nginx для CatLink

set -e

echo "⚙️ Настройка nginx конфигурации..."

# Создание конфигурации nginx
sudo tee /etc/nginx/sites-available/links > /dev/null << 'EOF'
server {
    listen 80;
    server_name links.shareon.kr sharon.kr;

    # Redirect all HTTP requests to HTTPS
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    server_name links.shareon.kr sharon.kr;

    # SSL certificates (will be configured by certbot)
    # ssl_certificate /etc/letsencrypt/live/links.shareon.kr/fullchain.pem;
    # ssl_certificate_key /etc/letsencrypt/live/links.shareon.kr/privkey.pem;

    # Modern SSL configuration
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;
    ssl_session_cache shared:SSL:10m;

    # Security headers
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Frame-Options DENY;
    add_header X-Content-Type-Options nosniff;
    add_header X-XSS-Protection "1; mode=block";

    # Proxy to frontend (Next.js)
    location / {
        proxy_pass http://localhost:3000;
        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;
        proxy_read_timeout 86400;
    }

    # Proxy API requests to backend (Django)
    location /api/ {
        proxy_pass http://localhost:8000;
        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 admin requests to backend (Django)
    location /admin/ {
        proxy_pass http://localhost:8000;
        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;
    }

    # Serve static files from Django
    location /static/ {
        proxy_pass http://localhost:8000;
        proxy_set_header Host $host;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # Serve media files from Django
    location /media/ {
        proxy_pass http://localhost:8000;
        proxy_set_header Host $host;
        expires 1y;
        add_header Cache-Control "public";
    }
}
EOF

echo "🔗 Активация конфигурации nginx..."
sudo ln -sf /etc/nginx/sites-available/links /etc/nginx/sites-enabled/
sudo rm -f /etc/nginx/sites-enabled/default

echo "🧪 Проверка конфигурации nginx..."
sudo nginx -t

echo "🔄 Перезапуск nginx..."
sudo systemctl restart nginx
sudo systemctl enable nginx

echo "✅ nginx настройка завершена"