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package dev.soffa.foundation.pubsub.nats;

import dev.soffa.foundation.commons.Logger;
import dev.soffa.foundation.commons.Mappers;
import dev.soffa.foundation.commons.TextUtil;
import dev.soffa.foundation.error.ManagedException;
import dev.soffa.foundation.message.MessageResponse;
import io.nats.client.Connection;
import io.nats.client.Message;
import io.nats.client.MessageHandler;
import lombok.AllArgsConstructor;

import java.util.Optional;

@AllArgsConstructor
public class NatsMessageHandler implements MessageHandler {

    private static final Logger LOG = Logger.get(NatsMessageHandler.class);

    private final Connection connection;
    private final dev.soffa.foundation.message.MessageHandler handler;

    private boolean accept(Message msg) {
        if (msg == null) {
            return false;
        }
        if (msg.isStatusMessage()) {
            return false;
        }
        return msg.getData() != null;
    }

    @Override
    public void onMessage(Message msg) {
        if (!accept(msg)) {
            return;
        }
        boolean sendReply = !msg.isJetStream() && TextUtil.isNotEmpty(msg.getReplyTo());
        dev.soffa.foundation.message.Message message;

        try {
            message = Mappers.JSON_DEFAULT.deserialize(msg.getData(), dev.soffa.foundation.message.Message.class);
        } catch (Exception e) {
            //TODO: handle lost payloads (audit)
            LOG.error(e, "Invalid payload, message will be discarded -- %s", e.getMessage());
            return;
        }

        if (message == null) {
            return;
        }

        try {
            Optional