# nginx.conf
user  nginx;
worker_processes  auto;

events {
    worker_connections 1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    sendfile        on;
    keepalive_timeout  65;

    server {
        listen 80;
        server_name _;

        # -------------------------
        # React frontend
        # -------------------------
        root /usr/share/nginx/html;
        index index.html;

        location / {
            try_files $uri /index.html;
        }

        # -------------------------
        # Django backend API
        # -------------------------
        location /api {
            return 301 /api/;
        }
        location /api/ {
            proxy_pass         http://backend: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;
        }

        # -------------------------
        # Static & media files (Django)
        # -------------------------
        location /static/ {
            alias /app/collectedstaticfiles/;
        }

        location /media/ {
            alias /app/media/;
        }

        # -------------------------
        # Security headers
        # -------------------------
        add_header X-Frame-Options "SAMEORIGIN";
        add_header X-Content-Type-Options "nosniff";
        add_header Referrer-Policy "strict-origin-when-cross-origin";
        add_header Content-Security-Policy "default-src 'self' 'unsafe-inline' 'unsafe-eval' data: blob:;";
    }
}