raphtory 0.17.0

raphtory, a temporal graph library
Documentation 
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use crate::{
    db::{
        api::view::StaticGraphViewOps,
        graph::{edge::EdgeView, node::NodeView},
    },
    prelude::GraphViewOps,
};
use either::Either;
use raphtory_api::core::entities::GID;
use raphtory_storage::graph::edges::edge_storage_ops::EdgeStorageOps;

// TODO: try to make private again if possible
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum EntityRef {
    Node(u64),
    Edge(u64),
}

impl<G: StaticGraphViewOps> From<NodeView<'static, G>> for EntityRef {
    fn from(value: NodeView<'static, G>) -> Self {
        EntityRef::Node(value.into_db_id())
    }
}

impl<G: StaticGraphViewOps> From<EdgeView<G>> for EntityRef {
    fn from(value: EdgeView<G>) -> Self {
        EntityRef::Edge(value.into_db_id())
    }
}

impl EntityRef {
    pub(super) fn id(&self) -> u64 {
        match self {
            EntityRef::Node(id) => *id,
            EntityRef::Edge(id) => *id,
        }
    }

    pub(super) fn resolve_entity<G: StaticGraphViewOps>(
        &self,
        graph: &G,
    ) -> Option<Either<NodeView<'static, G>, EdgeView<G>>> {
        match self.resolve_entity_gids(graph) {
            Either::Left(node) => Some(Either::Left(graph.node(node)?)),
            Either::Right((src, dst)) => Some(Either::Right(graph.edge(src, dst)?)),
        }
    }

    pub(super) fn as_node_view<G: StaticGraphViewOps>(
        &self,
        graph: &G,
    ) -> Option<NodeView<'static, G>> {
        self.resolve_entity(graph)?.left()
    }

    pub(super) fn as_edge_view<G: StaticGraphViewOps>(&self, graph: &G) -> Option<EdgeView<G>> {
        self.resolve_entity(graph)?.right()
    }

    pub(super) fn as_node_gid<G: StaticGraphViewOps>(&self, graph: &G) -> Option<GID> {
        self.resolve_entity_gids(graph).left()
    }

    pub(super) fn as_edge_gids<G: StaticGraphViewOps>(&self, graph: &G) -> Option<(GID, GID)> {
        self.resolve_entity_gids(graph).right()
    }

    fn resolve_entity_gids<G: StaticGraphViewOps>(&self, graph: &G) -> Either<GID, (GID, GID)> {
        match self {
            EntityRef::Node(id) => {
                Either::Left(graph.node_id(raphtory_api::core::entities::VID((*id) as usize)))
            }
            EntityRef::Edge(id) => {
                let edge = graph.core_edge((*id as usize).into());
                let src = graph.node_id(edge.src());
                let dst = graph.node_id(edge.dst());
                Either::Right((src, dst))
            }
        }
    }
}

// TODO: make sure I use this everywhere
pub(super) trait IntoDbId {
    fn into_db_id(self) -> u64;
}

impl<G: StaticGraphViewOps> IntoDbId for NodeView<'static, G> {
    fn into_db_id(self) -> u64 {
        self.node.index() as u64
    }
}

impl<G: StaticGraphViewOps> IntoDbId for EdgeView<G> {
    fn into_db_id(self) -> u64 {
        self.edge.pid().0 as u64
    }
}