distributed-topic-tracker 0.3.0

use anyhow::Result;
use ed25519_dalek::SigningKey;
use iroh::{Endpoint, SecretKey};
use iroh_gossip::net::Gossip;

// Imports from distributed-topic-tracker
use distributed_topic_tracker::{
    AutoDiscoveryGossip, BubbleMergeConfig, Config, MergeConfig, MessageOverlapMergeConfig,
    RecordPublisher, TopicId,
};

#[tokio::main]
async fn main() -> Result<()> {
    // Generate a new random secret key
    let secret_key = SecretKey::generate(&mut rand::rng());
    let signing_key = SigningKey::from_bytes(&secret_key.to_bytes());

    // Set up endpoint with discovery enabled
    let endpoint = Endpoint::builder(iroh::endpoint::presets::N0)
        .secret_key(secret_key.clone())
        .bind()
        .await?;

    // Initialize gossip with auto-discovery
    let gossip = Gossip::builder().spawn(endpoint.clone());

    // Set up protocol router
    let _router = iroh::protocol::Router::builder(endpoint.clone())
        .accept(iroh_gossip::ALPN, gossip.clone())
        .spawn();

    let topic_id = TopicId::new("my-iroh-gossip-topic".to_string());
    let initial_secret = b"my-initial-secret".to_vec();

    let record_publisher = RecordPublisher::new(
        topic_id.clone(),
        signing_key.clone(),
        None,
        initial_secret,
        // [!] Disable merge workers (BubbleMerge and MessageOverlapMerge)
        Config::builder()
            .merge_config(
                MergeConfig::builder()
                    .bubble_merge(BubbleMergeConfig::Disabled)
                    .message_overlap_merge(MessageOverlapMergeConfig::Disabled)
                    .build(),
            )
            .build(),
    );

    let topic = gossip
        .subscribe_and_join_with_auto_discovery(record_publisher)
        .await?;

    println!("[joined topic]");

    // Do something with the gossip topic
    // (bonus: GossipSender and GossipReceiver are safely clonable)
    let (_gossip_sender, _gossip_receiver) = topic.split().await?;

    Ok(())
}