locutus 0.0.3

Locutus P2P network main node implementation
Documentation 
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use clap::Parser;
use locutus_core::{
    locutus_runtime::{ContractStore, StateStore},
    Config, Executor, SqlitePool,
};
use locutus_dev::config::OperationMode;
use std::net::SocketAddr;
use std::net::{IpAddr, Ipv4Addr};
use std::path::PathBuf;
use tracing::metadata::LevelFilter;
use tracing_subscriber::EnvFilter;

type DynError = Box<dyn std::error::Error + Send + Sync + 'static>;

const MAX_SIZE: i64 = 10 * 1024 * 1024;
const MAX_MEM_CACHE: u32 = 10_000_000;

async fn run(config: NodeConfig) -> Result<(), DynError> {
    match config.mode {
        OperationMode::Local => run_local(config).await,
        OperationMode::Network => Err("network mode not yet enabled".into()),
    }
}

async fn run_local(config: NodeConfig) -> Result<(), DynError> {
    let contract_dir = config
        .contract_data_dir
        .unwrap_or_else(|| Config::get_conf().config_paths.local_contracts_dir());
    // TODO: Generate components and secrets store from config
    let contract_store = ContractStore::new(contract_dir, MAX_SIZE)?;
    let state_store = StateStore::new(SqlitePool::new().await?, MAX_MEM_CACHE).unwrap();
    let executor = Executor::new(contract_store, state_store, || {
        locutus_core::util::set_cleanup_on_exit().unwrap();
    })
    .await?;
    let socket: SocketAddr = (config.bind, config.port).into();
    locutus::local_node::run_local_node(executor, socket).await
}

fn main() -> Result<(), DynError> {
    tracing_subscriber::fmt()
        .with_level(true)
        .with_env_filter(
            EnvFilter::builder()
                .with_default_directive(LevelFilter::INFO.into())
                .from_env_lossy(),
        )
        .init();
    let config = NodeConfig::parse();
    let rt = tokio::runtime::Builder::new_multi_thread()
        .worker_threads(4)
        .enable_all()
        .build()
        .unwrap();
    rt.block_on(run(config))?;
    Ok(())
}

#[derive(clap::Parser, Clone, Debug)]
struct NodeConfig {
    /// Node operation mode.
    #[clap(value_enum, default_value_t=OperationMode::Local)]
    mode: OperationMode,
    /// Overrides the default data directory where Locutus contract files are stored.
    contract_data_dir: Option<PathBuf>,

    /// Address to bind to
    #[arg(long, short, default_value_t = IpAddr::V4(Ipv4Addr::LOCALHOST))]
    bind: IpAddr,

    /// Port to expose api on
    #[arg(long, short, default_value_t = 50509)]
    port: u16,
}