# Redirect HTTP to HTTPS
server {
    listen 80;
    listen [::]:80;
    server_name collabrix.apex-project.de;
    
    return 301 https://$server_name$request_uri;
}

# Main HTTPS Server
server {
    listen [::]:443 ssl http2;
    listen 443 ssl http2;
    
    server_name collabrix.apex-project.de;
    
    # SSL Configuration (managed by Certbot)
    ssl_certificate /etc/letsencrypt/live/collabrix.apex-project.de/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/collabrix.apex-project.de/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
    
    # 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;
    
    # Client max body size for file uploads (adjust as needed)
    client_max_body_size 25M;
    
    # Frontend (React/Vite)
    location / {
        proxy_pass http://192.168.0.12:80;
        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 X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Port $server_port;
    }
    
    # Backend API
    location /api/ {
        rewrite ^/api/(.*) /$1 break;
        proxy_pass http://192.168.0.12:8000;
        # Rewrite backend Location headers to https so browsers aren't redirected to http
        proxy_redirect http:// https://;
        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 X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Port $server_port;
        
        # CORS headers (if needed)
        add_header Access-Control-Allow-Origin * always;
        add_header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS" always;
        add_header Access-Control-Allow-Headers "Authorization, Content-Type" always;
        
        if ($request_method = OPTIONS) {
            return 204;
        }
    }
    
    # WebSocket Support
    location /api/ws/ {
        rewrite ^/api/(.*) /$1 break;
        proxy_pass http://192.168.0.12:8000;
        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;
        
        # WebSocket timeouts
        proxy_read_timeout 86400;
        proxy_send_timeout 86400;
    }
    
    # Static files and uploads
    location /uploads/ {
        proxy_pass http://192.168.0.12:8000/uploads/;
        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;
    }
    
    location /files/ {
        proxy_pass http://192.168.0.12:8000/files/;
        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;
    }
    
    # Auth endpoints
    location /auth/ {
        proxy_pass http://192.168.0.12:8000/auth/;
        # Rewrite backend Location headers to https so browsers aren't redirected to http
        proxy_redirect http:// https://;
        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;
    }
}