package middleware

import "net/http"

// CORS adds Cross-Origin Resource Sharing headers to the response.
// For now, it allows all origins (*).
func CORS(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Access-Control-Allow-Origin", "*")
		w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, PATCH")
		w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization")
		w.Header().Set("Access-Control-Max-Age", "86400")

		// Handle preflight requests
		if r.Method == http.MethodOptions {
			w.WriteHeader(http.StatusOK)
			return
		}

		next.ServeHTTP(w, r)
	})
}