kmp-domain 0.1.8

Domain model of the Kernel Memory Protocol: aggregates, value objects, repositories and projections, with no IO
Documentation 
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use std::collections::BTreeMap;

use crate::{BundleNode, DomainError, KmpBundle, TemporalCoordinate};

use super::axis_key::TemporalAxisKey;
use super::position::TemporalPosition;

pub(super) fn temporal_positions(
    bundle: &KmpBundle,
    nodes: &BTreeMap<String, (String, String)>,
) -> Result<Vec<TemporalPosition>, DomainError> {
    let mut positions = Vec::new();

    for relationship in bundle
        .relationships()
        .iter()
        .filter(|relationship| relationship.relationship_type() == "contains_entry")
    {
        let Some(coordinate) =
            TemporalCoordinate::from_relation_explanation(relationship.explanation())?
        else {
            continue;
        };
        let ref_id = relationship.target_node_id().to_string();
        let (kind, text) = nodes
            .get(&ref_id)
            .cloned()
            .unwrap_or_else(|| ("entry".to_string(), ref_id.clone()));

        for axis_key in TemporalAxisKey::from_coordinate(&ref_id, &coordinate) {
            positions.push(TemporalPosition {
                ref_id: ref_id.clone(),
                kind: kind.clone(),
                text: text.clone(),
                coordinate: coordinate.clone(),
                axis_key,
            });
        }
    }

    Ok(positions)
}

pub(super) fn bundle_nodes_by_id(bundle: &KmpBundle) -> BTreeMap<String, (String, String)> {
    std::iter::once(bundle.root_node())
        .chain(bundle.neighbor_nodes().iter())
        .map(|node| (node.node_id().to_string(), node_text(node)))
        .collect()
}

fn node_text(node: &BundleNode) -> (String, String) {
    let text = if node.summary().trim().is_empty() {
        node.title().to_string()
    } else {
        node.summary().to_string()
    };
    (node.node_kind().to_string(), text)
}