package promptdef

import (
	"crypto/sha256"
	"encoding/hex"
	"encoding/json"

	"gitea.maximumdirect.net/eric/promptkit/internal/domain"
)

// HashDefinition hashes an execution-ready prompt, including captured content.
func HashDefinition(definition *domain.PromptDefinition) (string, error) {
	bytes, err := json.Marshal(definition)
	if err != nil {
		return "", err
	}
	sum := sha256.Sum256(bytes)
	return hex.EncodeToString(sum[:]), nil
}