khive-pack-session 0.3.0

Session verb pack — store/list/get over the notes substrate (ADR-080)
Documentation 
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//! `SessionPack` self-registration factory and `PackRuntime` dispatch impl.

use async_trait::async_trait;
use serde_json::Value;

use khive_runtime::pack::PackRuntime;
use khive_runtime::{KhiveRuntime, NamespaceToken, RuntimeError, SchemaPlan, VerbRegistry};
use khive_types::{EdgeEndpointRule, HandlerDef, Pack};

use crate::{handlers, SessionPack, SESSION_HANDLERS};

// ── inventory self-registration ───────────────────────────────────────────────

struct SessionPackFactory;

impl khive_runtime::PackFactory for SessionPackFactory {
    fn name(&self) -> &'static str {
        "session"
    }

    fn requires(&self) -> &'static [&'static str] {
        &["kg"]
    }

    fn create(&self, runtime: KhiveRuntime) -> Box<dyn khive_runtime::PackRuntime> {
        Box::new(SessionPack::new(runtime))
    }
}

inventory::submit! { khive_runtime::PackRegistration(&SessionPackFactory) }

// ── PackRuntime impl ──────────────────────────────────────────────────────────

#[async_trait]
impl PackRuntime for SessionPack {
    fn name(&self) -> &str {
        <SessionPack as Pack>::NAME
    }

    fn note_kinds(&self) -> &'static [&'static str] {
        <SessionPack as Pack>::NOTE_KINDS
    }

    fn entity_kinds(&self) -> &'static [&'static str] {
        <SessionPack as Pack>::ENTITY_KINDS
    }

    fn handlers(&self) -> &'static [HandlerDef] {
        &SESSION_HANDLERS
    }

    fn edge_rules(&self) -> &'static [EdgeEndpointRule] {
        &[]
    }

    fn requires(&self) -> &'static [&'static str] {
        <SessionPack as Pack>::REQUIRES
    }

    fn schema_plan(&self) -> SchemaPlan {
        SchemaPlan {
            pack: "session",
            statements: &crate::SESSION_SCHEMA_PLAN_STMTS,
        }
    }

    async fn warm(&self) {
        let config = crate::mirror::MirrorConfig::from_env();
        if !config.enabled && !config.codex_enabled {
            return;
        }
        let runtime = self.runtime().clone();
        tokio::spawn(async move {
            crate::mirror::run_mirror_service(runtime, config).await;
        });
    }

    async fn dispatch(
        &self,
        verb: &str,
        params: Value,
        _registry: &VerbRegistry,
        token: &NamespaceToken,
    ) -> Result<Value, RuntimeError> {
        let rt = self.runtime();
        match verb {
            "session.store" => handlers::store::handle_store(rt, token, params).await,
            "session.list" => handlers::list::handle_list(rt, token, params).await,
            "session.get" => handlers::get::handle_get(rt, token, params).await,
            _ => Err(RuntimeError::InvalidInput(format!(
                "session pack does not handle verb {verb:?}"
            ))),
        }
    }
}