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use crate::ids::{EdgeId, NodeId, Scope};
use crate::props::Props;
use serde::{Deserialize, Serialize};
use smol_str::SmolStr;
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct NodeRecord {
pub id: NodeId,
pub scope: Scope,
pub label: SmolStr,
pub props: Props,
pub embedding: Option<(String, Vec<f32>)>,
}
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct EdgeRecord {
pub id: EdgeId,
pub scope: Scope,
pub ty: SmolStr,
pub from: NodeId,
pub to: NodeId,
pub props: Props,
pub valid_from: i64,
pub valid_to: Option<i64>,
}
#[cfg(test)]
mod tests {
use crate::ids::*;
use crate::op::Op;
use crate::storage::Storage;
fn db() -> (tempfile::TempDir, Storage) {
let dir = tempfile::tempdir().unwrap();
let s = Storage::open(dir.path().join("t.redb")).unwrap();
(dir, s)
}
#[test]
fn create_edge_resolves_valid_from_and_persists() {
let (_d, s) = db();
let scope = Scope::Id(ScopeId::new());
let (a, b, e) = (NodeId::new(), NodeId::new(), EdgeId::new());
let batch = s
.apply_batch(
vec![
Op::CreateNode {
id: a,
scope,
label: "Memory".into(),
props: Default::default(),
},
Op::CreateNode {
id: b,
scope,
label: "Entity".into(),
props: Default::default(),
},
Op::CreateEdge {
id: e,
scope,
ty: "ABOUT".into(),
from: a,
to: b,
props: Default::default(),
valid_from: None,
},
],
1_000,
)
.unwrap();
// Stored op is fully resolved:
match &batch.resolved[2] {
Op::CreateEdge { valid_from, .. } => assert_eq!(*valid_from, Some(1_000)),
other => panic!("unexpected {other:?}"),
}
let edge = s.load_edge(e).unwrap().unwrap();
assert_eq!(edge.valid_from, 1_000);
assert_eq!(edge.valid_to, None);
}
#[test]
fn cross_scope_edge_requires_shared_endpoint() {
let (_d, s) = db();
let (s1, s2) = (Scope::Id(ScopeId::new()), Scope::Id(ScopeId::new()));
let (a, b) = (NodeId::new(), NodeId::new());
let err = s
.apply_batch(
vec![
Op::CreateNode {
id: a,
scope: s1,
label: "Memory".into(),
props: Default::default(),
},
Op::CreateNode {
id: b,
scope: s2,
label: "Entity".into(),
props: Default::default(),
},
Op::CreateEdge {
id: EdgeId::new(),
scope: s1,
ty: "ABOUT".into(),
from: a,
to: b,
props: Default::default(),
valid_from: None,
},
],
0,
)
.unwrap_err();
assert!(matches!(err, crate::TopoError::Rejected(_)));
// Whole batch rejected — nodes must NOT exist:
assert!(s.load_node(a).unwrap().is_none());
// With a Shared endpoint it works:
s.apply_batch(
vec![
Op::CreateNode {
id: a,
scope: s1,
label: "Memory".into(),
props: Default::default(),
},
Op::CreateNode {
id: b,
scope: Scope::Shared,
label: "Entity".into(),
props: Default::default(),
},
Op::CreateEdge {
id: EdgeId::new(),
scope: s1,
ty: "ABOUT".into(),
from: a,
to: b,
props: Default::default(),
valid_from: None,
},
],
0,
)
.unwrap();
}
#[test]
fn remove_node_removes_incident_edges() {
let (_d, s) = db();
let scope = Scope::Id(ScopeId::new());
let (a, b, e) = (NodeId::new(), NodeId::new(), EdgeId::new());
s.apply_batch(
vec![
Op::CreateNode {
id: a,
scope,
label: "M".into(),
props: Default::default(),
},
Op::CreateNode {
id: b,
scope,
label: "M".into(),
props: Default::default(),
},
Op::CreateEdge {
id: e,
scope,
ty: "RELATES_TO".into(),
from: a,
to: b,
props: Default::default(),
valid_from: None,
},
],
0,
)
.unwrap();
s.apply_batch(vec![Op::RemoveNode { id: a }], 1).unwrap();
assert!(s.load_node(a).unwrap().is_none());
assert!(s.load_edge(e).unwrap().is_none());
}
#[test]
fn remove_node_missing_is_rejected() {
let (_d, s) = db();
let err = s
.apply_batch(vec![Op::RemoveNode { id: NodeId::new() }], 0)
.unwrap_err();
assert!(matches!(err, crate::TopoError::Rejected(_)));
}
#[test]
fn remove_node_removes_incident_edge_in_to_direction() {
let (_d, s) = db();
let scope = Scope::Id(ScopeId::new());
let (a, b, e) = (NodeId::new(), NodeId::new(), EdgeId::new());
s.apply_batch(
vec![
Op::CreateNode {
id: a,
scope,
label: "M".into(),
props: Default::default(),
},
Op::CreateNode {
id: b,
scope,
label: "M".into(),
props: Default::default(),
},
Op::CreateEdge {
id: e,
scope,
ty: "RELATES_TO".into(),
from: a,
to: b,
props: Default::default(),
valid_from: None,
},
],
0,
)
.unwrap();
// Remove b, the edge's `to` endpoint — must also delete the edge.
s.apply_batch(vec![Op::RemoveNode { id: b }], 1).unwrap();
assert!(s.load_node(b).unwrap().is_none());
assert!(s.load_edge(e).unwrap().is_none());
}
#[test]
fn create_edge_missing_endpoint_is_rejected() {
let (_d, s) = db();
let scope = Scope::Id(ScopeId::new());
let (a, b) = (NodeId::new(), NodeId::new());
// Only `a` is created; `b` never exists.
let err = s
.apply_batch(
vec![
Op::CreateNode {
id: a,
scope,
label: "M".into(),
props: Default::default(),
},
Op::CreateEdge {
id: EdgeId::new(),
scope,
ty: "ABOUT".into(),
from: a,
to: b,
props: Default::default(),
valid_from: None,
},
],
0,
)
.unwrap_err();
assert!(matches!(err, crate::TopoError::Rejected(_)));
// Whole batch rejected — nothing committed, not even the CreateNode:
assert!(s.load_node(a).unwrap().is_none());
assert!(s.read_ops(1).unwrap().is_empty());
}
#[test]
fn close_edge_missing_is_rejected() {
let (_d, s) = db();
let err = s
.apply_batch(
vec![Op::CloseEdge {
id: EdgeId::new(),
valid_to: None,
}],
0,
)
.unwrap_err();
assert!(matches!(err, crate::TopoError::Rejected(_)));
}
#[test]
fn close_edge_already_closed_is_rejected() {
let (_d, s) = db();
let scope = Scope::Id(ScopeId::new());
let (a, b, e) = (NodeId::new(), NodeId::new(), EdgeId::new());
s.apply_batch(
vec![
Op::CreateNode {
id: a,
scope,
label: "M".into(),
props: Default::default(),
},
Op::CreateNode {
id: b,
scope,
label: "M".into(),
props: Default::default(),
},
Op::CreateEdge {
id: e,
scope,
ty: "ABOUT".into(),
from: a,
to: b,
props: Default::default(),
valid_from: None,
},
],
0,
)
.unwrap();
s.apply_batch(
vec![Op::CloseEdge {
id: e,
valid_to: None,
}],
1,
)
.unwrap();
let err = s
.apply_batch(
vec![Op::CloseEdge {
id: e,
valid_to: None,
}],
2,
)
.unwrap_err();
assert!(matches!(err, crate::TopoError::Rejected(_)));
// The first close still stands — the second (rejected) batch never committed.
let edge = s.load_edge(e).unwrap().unwrap();
assert_eq!(edge.valid_to, Some(1));
}
}