//! `aura-engine` — the headless, UI-agnostic reactive SoA engine.
//!
//! Delivered across cycles 0003-0004 — the harness and its deterministic run
//! loop:
//!
//! - [`Harness`] — the closed root graph that runs (a flat node array + an index
//!   edge table, topologically ordered) and its deterministic `run` loop: a
//!   k-way merge of timestamped sources (C3/C4) driven through a wired DAG of
//!   nodes, cycle by cycle, with freshness-gated recompute and the two firing
//!   policies (C5/C6) deciding when each node re-evaluates and what it holds.
//! - [`Edge`] / [`Target`] / [`SourceSpec`] — producer->consumer wiring,
//!   source->consumer wiring, and a declared source (its kind + target slots).
//! - [`BootstrapError`] — wiring faults caught once, at bootstrap (kind
//!   mismatch, bad index, directed cycle).
//!
//! Delivered in cycle 0009 — the run report surface:
//!
//! - [`RunMetrics`] / [`RunManifest`] / [`RunReport`] — the `(manifest, metrics)`
//!   pair C18 mandates per run, with [`RunReport::to_json`] for the structured
//!   C14 face;
//! - [`summarize`] — the post-run pure reduction over a run's recorded
//!   pip-equity + exposure streams into [`RunMetrics`]; [`f64_field`] bridges a
//!   recording sink's `Vec<Scalar>` rows to it.
//!
//! Still to come (subsequent cycles): the `Source` trait + data-server ingestion
//! and source-native time normalization (C3/C11), the broker-independent
//! position-event output and downstream broker nodes (C10), and the param
//! injection + orchestration axes of the atomic sim unit
//! (`(topology + params + data-window + seed)`, swept by optimize / walk-forward
//! / Monte-Carlo) — its `-> metrics` reduction now ships via [`summarize`].
//!
//! Visualization is never here: it is a downstream consumer node on the streams.

mod blueprint;
mod builder;
mod graph_model;
mod harness;
mod report;
mod sweep;

pub use blueprint::{
    BindError, Binder, BlueprintNode, CompileError, Composite, OutField, Role,
    SweepBinder,
};
pub use builder::{BuildError, GraphBuilder, InPort, NodeHandle, OutPort, RoleHandle};
pub use graph_model::model_to_json;
pub use harness::{BootstrapError, Edge, FlatGraph, Harness, SourceSpec, Target};
pub use report::{f64_field, summarize, RunManifest, RunMetrics, RunReport};
pub use sweep::{sweep, GridSpace, SweepError, SweepFamily, SweepPoint};
// #29: re-export the core scalar vocabulary a Blueprint builder needs
// (SourceSpec.kind is a ScalarKind; sources/Recorder columns are Scalar /
// Firing / Timestamp) so a graph builder has one import surface, not two.
pub use aura_core::{Firing, NodeSchema, ParamSpec, PortSpec, Scalar, ScalarKind, Timestamp};

#[cfg(test)]
mod test_fixtures;

#[cfg(test)]
mod reexport_tests {
    // #29: the core scalar vocabulary a Blueprint builder needs is reachable
    // from aura-engine alone (crate::X == external aura_engine::X), so a
    // downstream author does not add a second aura-core import for ScalarKind.
    #[test]
    fn core_scalar_vocabulary_is_reexported_from_crate_root() {
        use crate::{Firing, Scalar, ScalarKind, Timestamp};
        let _k: ScalarKind = ScalarKind::F64;
        let _f: Firing = Firing::Any;
        let _s: Scalar = Scalar::F64(0.0);
        let _t: Timestamp = Timestamp(0);
    }
}