package jnpf.dmsEntity.storage;

import jnpf.dmsEntity.storage.enums.DmsWorkflowFileType;

import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HexFormat;

public final class DmsWorkflowSourceKey {
    private DmsWorkflowSourceKey() {
    }

    public static String of(String flowId, String taskId, DmsWorkflowFileType type) {
        String flow = flowId.trim();
        String task = taskId.trim();
        String identity = type.name() + ":" + flow.length() + ":" + flow + ":" + task;
        try {
            return "workflow:" + HexFormat.of().formatHex(MessageDigest.getInstance("SHA-256")
                    .digest(identity.getBytes(StandardCharsets.UTF_8)));
        } catch (NoSuchAlgorithmException exception) {
            throw new IllegalStateException(exception);
        }
    }
}