# Nginx configuration for Church Music Database (New Site) with HTTPS/TLS

# HTTP -> HTTPS redirect
server {
    listen 80;
    listen [::]:80;
    server_name houseofprayer.ddns.net;
    
    # Allow Let's Encrypt ACME challenge
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }
    
    # Redirect all other HTTP to HTTPS
    location / {
        return 301 https://$server_name$request_uri;
    }
}

# HTTPS Configuration
server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name houseofprayer.ddns.net;
    
    # SSL Certificate Configuration (Let's Encrypt)
    ssl_certificate /etc/letsencrypt/live/houseofprayer.ddns.net/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/houseofprayer.ddns.net/privkey.pem;
    
    # SSL Security Settings (Modern configuration)
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305';
    ssl_prefer_server_ciphers off;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 1d;
    ssl_session_tickets off;
    
    # OCSP Stapling
    ssl_stapling on;
    ssl_stapling_verify on;
    ssl_trusted_certificate /etc/letsencrypt/live/houseofprayer.ddns.net/chain.pem;
    
    # Security Headers
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
    add_header X-Frame-Options "DENY" 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;
    
    # Logging
    access_log /var/log/nginx/church-music-access.log;
    error_log /var/log/nginx/church-music-error.log;
    
    # Frontend (React/Vite App) - Proxy to Vite dev server or serve build
    location / {
        # For development (Vite dev server)
        proxy_pass http://localhost:5100;
        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;
        
        # WebSocket support for HMR (Hot Module Replacement)
        proxy_read_timeout 86400;
        proxy_send_timeout 86400;
        
        # Allow WebSocket connections
        proxy_buffering off;
    }
    
    # Backend API
    location /api/ {
        # CORS headers for ALL requests
        add_header 'Access-Control-Allow-Origin' '$http_origin' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, PATCH, OPTIONS' always;
        add_header 'Access-Control-Allow-Headers' 'Content-Type, Authorization, If-None-Match' always;
        add_header 'Access-Control-Allow-Credentials' 'true' always;
        
        # Handle preflight OPTIONS requests
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' '$http_origin' always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, PATCH, OPTIONS' always;
            add_header 'Access-Control-Allow-Headers' 'Content-Type, Authorization, If-None-Match' always;
            add_header 'Access-Control-Allow-Credentials' 'true' always;
            add_header 'Access-Control-Max-Age' 1728000;
            add_header 'Content-Type' 'text/plain; charset=utf-8';
            add_header 'Content-Length' 0;
            return 204;
        }
        
        proxy_pass http://localhost:8080/api/;
        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;
        
        # Request size limits (for file uploads)
        client_max_body_size 16M;
        
        # Timeouts for long-running requests
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }
    
    # Static files caching (for production build)
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        proxy_pass http://localhost:5100;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }
    
    # Gzip compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_types text/plain text/css text/xml text/javascript application/x-javascript application/xml+rss application/json application/javascript;
}