feat(infrastructure): store, sink de complétion et mailbox des tâches de fond (B2-B4)

Adapters de persistance des BackgroundTask (store), sink de récupération
de complétion post-tour et boîte de réception (mailbox) pour les messages
concurrents, câblés sur l'entrée. Couvert par background_task_store,
background_completion_sink, agent_inbox et orchestrator_watcher (verts).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
2026-07-02 15:47:28 +02:00
parent f4a55e9988
commit c537da54ef
9 changed files with 1889 additions and 67 deletions

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@ -0,0 +1,390 @@
//! [`FsBackgroundTaskStore`] — durable store for first-class background tasks.
//!
//! Persistence is segmented by project id under the project root:
//!
//! ```text
//! <project_root>/.ideai/background-tasks/<projectId>.json
//! ```
//!
//! Each file is a small JSON document `{ version, projectId, tasks }`. Writes are
//! atomic: serialize to `<projectId>.json.tmp`, then rename over the target. The
//! in-memory registry indexes open tasks by owner agent and task id; it is
//! rebuilt lazily from disk on first use and updated on every successful mutation.
//!
//! Boot reconcile rule for B2: because the runner registry is not wired yet, a
//! task in `Running` or `Waiting` whose id is not present in the caller-provided
//! live handle list is marked `Failed` with a synthetic restart-loss error and
//! `completion_delivered = false`. Existing terminal tasks that are not delivered
//! are only reported as delivery-pending. `Queued` tasks are left unchanged.
use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
use std::path::{Path, PathBuf};
use async_trait::async_trait;
use serde::{Deserialize, Serialize};
use tokio::sync::RwLock;
use domain::{
AgentId, BackgroundTask, BackgroundTaskPortError, BackgroundTaskResult, BackgroundTaskState,
BackgroundTaskStore, ProjectId, ProjectPath, TaskId,
};
const IDEAI_DIR: &str = ".ideai";
const BACKGROUND_TASKS_DIR: &str = "background-tasks";
const TASK_DOC_VERSION: u32 = 1;
/// File-backed implementation of [`BackgroundTaskStore`].
pub struct FsBackgroundTaskStore {
dir: PathBuf,
registry: RwLock<RegistryIndex>,
}
#[derive(Debug, Clone, Default, PartialEq, Eq)]
struct RegistryIndex {
loaded: bool,
task_to_project: HashMap<TaskId, ProjectId>,
open_by_agent: HashMap<AgentId, BTreeMap<TaskId, BackgroundTask>>,
}
#[derive(Debug, Clone, Default, PartialEq, Eq)]
struct StoreState {
docs: BTreeMap<ProjectId, TaskDoc>,
}
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
struct TaskDoc {
version: u32,
project_id: ProjectId,
tasks: Vec<BackgroundTask>,
}
/// Summary returned by [`FsBackgroundTaskStore::reconcile_boot`].
#[derive(Debug, Clone, Default, PartialEq, Eq)]
pub struct BackgroundTaskReconcileReport {
/// Open tasks converted to `Failed` because no live runtime handle exists.
pub failed_task_ids: Vec<TaskId>,
/// Terminal tasks whose completion remains to be delivered.
pub delivery_pending_task_ids: Vec<TaskId>,
}
impl FsBackgroundTaskStore {
/// Builds the store for a project root.
#[must_use]
pub fn new(root: &ProjectPath) -> Self {
let dir = PathBuf::from(root.as_str())
.join(IDEAI_DIR)
.join(BACKGROUND_TASKS_DIR);
Self {
dir,
registry: RwLock::new(RegistryIndex::default()),
}
}
/// `<root>/.ideai/background-tasks`.
#[must_use]
pub fn dir(&self) -> &Path {
&self.dir
}
/// Returns the open task ids known by the in-memory registry for `agent_id`.
///
/// This is intentionally a registry view: it does not read the filesystem.
pub async fn registry_open_task_ids_for_agent(&self, agent_id: AgentId) -> Vec<TaskId> {
self.registry
.read()
.await
.open_by_agent
.get(&agent_id)
.map(|tasks| tasks.keys().copied().collect())
.unwrap_or_default()
}
/// Reconciles persisted tasks against live runtime handles at boot.
///
/// B2 rule: `Running`/`Waiting` tasks missing from `live_task_ids` are marked
/// `Failed` with a synthetic restart-loss failure and become delivery-pending.
/// Already-terminal undelivered tasks are reported as delivery-pending. `Queued`
/// tasks are left open.
///
/// # Errors
/// [`BackgroundTaskPortError`] on I/O, serialization or invalid transition.
pub async fn reconcile_boot(
&self,
live_task_ids: &[TaskId],
now_ms: u64,
) -> Result<BackgroundTaskReconcileReport, BackgroundTaskPortError> {
let live: HashSet<TaskId> = live_task_ids.iter().copied().collect();
let mut state = self.read_all_docs().await?;
let mut report = BackgroundTaskReconcileReport::default();
let mut changed_projects = BTreeSet::new();
for (project_id, doc) in &mut state.docs {
for task in &mut doc.tasks {
match task.state {
BackgroundTaskState::Running | BackgroundTaskState::Waiting
if !live.contains(&task.id) =>
{
let finished_at_ms = now_ms.max(task.updated_at_ms);
let result = BackgroundTaskResult::Failure {
finished_at_ms,
exit_code: None,
error: "background task lost its runtime handle during IdeA restart"
.into(),
stdout_tail: None,
stderr_tail: None,
};
*task = task.complete(result).map_err(invalid_task)?;
report.failed_task_ids.push(task.id);
report.delivery_pending_task_ids.push(task.id);
changed_projects.insert(*project_id);
}
_ if task.has_pending_completion_delivery() => {
report.delivery_pending_task_ids.push(task.id);
}
_ => {}
}
}
}
for project_id in changed_projects {
if let Some(doc) = state.docs.get(&project_id) {
self.write_doc(doc).await?;
}
}
self.replace_registry_from_state(&state).await;
Ok(report)
}
async fn ensure_registry_loaded(&self) -> Result<(), BackgroundTaskPortError> {
if self.registry.read().await.loaded {
return Ok(());
}
let state = self.read_all_docs().await?;
self.replace_registry_from_state(&state).await;
Ok(())
}
async fn replace_registry_from_state(&self, state: &StoreState) {
let mut registry = self.registry.write().await;
*registry = RegistryIndex::from_state(state);
}
fn path_for_project(&self, project_id: ProjectId) -> PathBuf {
self.dir.join(format!("{project_id}.json"))
}
fn tmp_path_for_project(&self, project_id: ProjectId) -> PathBuf {
self.dir.join(format!("{project_id}.json.tmp"))
}
async fn read_all_docs(&self) -> Result<StoreState, BackgroundTaskPortError> {
let mut state = StoreState::default();
let mut entries = match tokio::fs::read_dir(&self.dir).await {
Ok(entries) => entries,
Err(e) if e.kind() == std::io::ErrorKind::NotFound => return Ok(state),
Err(e) => return Err(io_error(e)),
};
while let Some(entry) = entries.next_entry().await.map_err(io_error)? {
let path = entry.path();
if path.extension().and_then(|ext| ext.to_str()) != Some("json") {
continue;
}
let doc = self.read_doc_path(&path).await?;
state.docs.insert(doc.project_id, doc);
}
Ok(state)
}
async fn read_doc(&self, project_id: ProjectId) -> Result<TaskDoc, BackgroundTaskPortError> {
let path = self.path_for_project(project_id);
match self.read_doc_path(&path).await {
Ok(doc) => Ok(doc),
Err(BackgroundTaskPortError::NotFound) => Ok(TaskDoc {
version: TASK_DOC_VERSION,
project_id,
tasks: Vec::new(),
}),
Err(e) => Err(e),
}
}
async fn read_doc_path(&self, path: &Path) -> Result<TaskDoc, BackgroundTaskPortError> {
match tokio::fs::read(path).await {
Ok(bytes) => serde_json::from_slice(&bytes)
.map_err(|e| BackgroundTaskPortError::Store(e.to_string())),
Err(e) if e.kind() == std::io::ErrorKind::NotFound => {
Err(BackgroundTaskPortError::NotFound)
}
Err(e) => Err(io_error(e)),
}
}
async fn write_doc(&self, doc: &TaskDoc) -> Result<(), BackgroundTaskPortError> {
tokio::fs::create_dir_all(&self.dir)
.await
.map_err(io_error)?;
let bytes = serde_json::to_vec_pretty(doc)
.map_err(|e| BackgroundTaskPortError::Store(e.to_string()))?;
let tmp = self.tmp_path_for_project(doc.project_id);
tokio::fs::write(&tmp, &bytes).await.map_err(io_error)?;
tokio::fs::rename(&tmp, self.path_for_project(doc.project_id))
.await
.map_err(io_error)?;
Ok(())
}
async fn find_task_project(
&self,
task_id: TaskId,
) -> Result<Option<ProjectId>, BackgroundTaskPortError> {
self.ensure_registry_loaded().await?;
Ok(self
.registry
.read()
.await
.task_to_project
.get(&task_id)
.copied())
}
async fn update_registry_for_task(&self, task: &BackgroundTask) {
let mut registry = self.registry.write().await;
registry.loaded = true;
registry.task_to_project.insert(task.id, task.project_id);
for tasks in registry.open_by_agent.values_mut() {
tasks.remove(&task.id);
}
if !task.is_terminal() {
registry
.open_by_agent
.entry(task.owner_agent_id)
.or_default()
.insert(task.id, task.clone());
}
}
}
impl RegistryIndex {
fn from_state(state: &StoreState) -> Self {
let mut registry = Self {
loaded: true,
task_to_project: HashMap::new(),
open_by_agent: HashMap::new(),
};
for doc in state.docs.values() {
for task in &doc.tasks {
registry.task_to_project.insert(task.id, task.project_id);
if !task.is_terminal() {
registry
.open_by_agent
.entry(task.owner_agent_id)
.or_default()
.insert(task.id, task.clone());
}
}
}
registry
}
}
#[async_trait]
impl BackgroundTaskStore for FsBackgroundTaskStore {
async fn create(&self, task: &BackgroundTask) -> Result<(), BackgroundTaskPortError> {
self.ensure_registry_loaded().await?;
if self
.registry
.read()
.await
.task_to_project
.contains_key(&task.id)
{
return Err(BackgroundTaskPortError::AlreadyExists);
}
let mut doc = self.read_doc(task.project_id).await?;
if doc.tasks.iter().any(|existing| existing.id == task.id) {
return Err(BackgroundTaskPortError::AlreadyExists);
}
doc.tasks.push(task.clone());
self.write_doc(&doc).await?;
self.update_registry_for_task(task).await;
Ok(())
}
async fn get(&self, id: TaskId) -> Result<Option<BackgroundTask>, BackgroundTaskPortError> {
let Some(project_id) = self.find_task_project(id).await? else {
return Ok(None);
};
let doc = self.read_doc(project_id).await?;
Ok(doc.tasks.into_iter().find(|task| task.id == id))
}
async fn save(&self, task: &BackgroundTask) -> Result<(), BackgroundTaskPortError> {
self.ensure_registry_loaded().await?;
let mut doc = self.read_doc(task.project_id).await?;
if let Some(slot) = doc.tasks.iter_mut().find(|existing| existing.id == task.id) {
*slot = task.clone();
} else {
return Err(BackgroundTaskPortError::NotFound);
}
self.write_doc(&doc).await?;
self.update_registry_for_task(task).await;
Ok(())
}
async fn list_open_for_agent(
&self,
agent_id: AgentId,
) -> Result<Vec<BackgroundTask>, BackgroundTaskPortError> {
self.ensure_registry_loaded().await?;
let registry = self.registry.read().await;
let mut tasks: Vec<BackgroundTask> = registry
.open_by_agent
.get(&agent_id)
.map(|tasks| tasks.values().cloned().collect())
.unwrap_or_default();
tasks.sort_by_key(|task| (task.created_at_ms, task.id));
Ok(tasks)
}
async fn list_undelivered_completions(
&self,
) -> Result<Vec<BackgroundTask>, BackgroundTaskPortError> {
let mut tasks: Vec<BackgroundTask> = self
.read_all_docs()
.await?
.docs
.into_values()
.flat_map(|doc| doc.tasks)
.filter(BackgroundTask::has_pending_completion_delivery)
.collect();
tasks.sort_by_key(|task| (task.updated_at_ms, task.id));
Ok(tasks)
}
async fn mark_completion_delivered(
&self,
task_id: TaskId,
) -> Result<(), BackgroundTaskPortError> {
let task = self
.get(task_id)
.await?
.ok_or(BackgroundTaskPortError::NotFound)?;
let delivered = match task.mark_completion_delivered() {
Ok(delivered) => delivered,
Err(domain::BackgroundTaskError::CompletionAlreadyDelivered) => return Ok(()),
Err(e) => return Err(invalid_task(e)),
};
self.save(&delivered).await
}
}
fn io_error(error: std::io::Error) -> BackgroundTaskPortError {
BackgroundTaskPortError::Store(error.to_string())
}
fn invalid_task(error: domain::BackgroundTaskError) -> BackgroundTaskPortError {
BackgroundTaskPortError::Invalid(error.to_string())
}

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@ -4,6 +4,7 @@
//! the known-projects **registry** and the **workspace** are stored as plain
//! JSON files in the app data directory (machine-local, outside any project).
mod background_task;
mod context;
mod embedder;
mod live_state;
@ -15,6 +16,7 @@ mod skill;
mod template;
mod vector;
pub use background_task::{BackgroundTaskReconcileReport, FsBackgroundTaskStore};
pub use context::IdeaiContextStore;
#[cfg(feature = "vector-onnx")]
pub use embedder::OnnxEmbedder;