acts 0.18.0

a fast, lightweight, extensiable workflow engine
Documentation 
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use crate::{Engine, EngineBuilder, Signal, Workflow, config::ConfigData, scheduler::Process};
use std::sync::Arc;

/// Unified test helper. Creates an Engine and a Process from a workflow.
/// Returns `(Engine, Arc<Process>)`.
///
/// Tests should get Runtime via `engine.runtime()`, create signals via
/// `engine.signal()`, and manage their own signal/channel lifecycle.
#[allow(clippy::type_complexity)]
pub fn create_proc(workflow: &Workflow, pid: &str) -> (Engine, Arc<Process>) {
    let engine = Engine::new().start().unwrap();
    let proc = engine.runtime().create_proc(pid, workflow);
    engine.channel().on_message(|e| println!("message: {e:?}"));
    (engine, proc)
}

/// Like [`create_proc`] but uses [`EngineBuilder`] with a custom [`ConfigData`].
pub(crate) fn create_proc_with_config(
    config: &ConfigData,
    workflow: &Workflow,
    pid: &str,
) -> (Engine, Arc<Process>) {
    let engine = EngineBuilder::new()
        .set_config(config)
        .build()
        .start()
        .unwrap();
    let proc = engine.runtime().create_proc(pid, workflow);
    engine.channel().on_message(|e| println!("message: {e:?}"));

    (engine, proc)
}

pub(crate) fn auto_complete<S>(engine: &Engine, sig: &Signal<S>)
where
    S: Clone + Send + Sync + 'static,
{
    let (s1, s2) = sig.double();
    let channel = engine.channel();
    channel.on_complete(move |e| {
        println!("on_complete: {e:?}");
        std::thread::sleep(std::time::Duration::from_millis(10));
        s1.close();
    });

    channel.on_error(move |e| {
        println!("on_error: {e:?}");
        std::thread::sleep(std::time::Duration::from_millis(10));
        s2.close();
    });
}