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feat(worker): add claude-cli runner, queue service, and hub api

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Runner stack (non-worktree path): IClaudeProcess + ClaudeProcess spawning the
CLI with --output-format stream-json, prompt via stdin, parses the final
type:"result" line into RunResult. LogWriter appends ndjson to
~/.todo-app/logs/<taskId>.ndjson. TaskRunner orchestrates DB transitions
(MarkRunning -> MarkDone/Failed) and pushes TaskStarted/Message/Finished/
Updated via HubBroadcaster. Worktree-backed lists short-circuit with a
"Slice E" failure message until git support lands.

QueueService (BackgroundService) holds two in-memory slots (_queueSlot +
_overrideSlot) guarded by a lock. Uses PeriodicTimer + SemaphoreSlim wake
signal so WakeQueue() triggers an instant pickup. RunNow throws
InvalidOperationException when override busy; CancelTask cancels the linked
CTS which kills the child process tree.

WorkerHub extended with GetActive, RunNow (translated to HubException
variants), CancelTask, WakeQueue. HubBroadcaster exposes typed push methods.

Tests: 26 pass (12 new). QueueServiceTests cover override-busy,
schedule-filter, FIFO sequentiality, cancellation, plus a FakeClaudeProcess
that blocks on a TCS for deterministic slot-state assertions.
MessageParserTests cover result extraction + malformed/non-result lines.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Mika Kuns
2026-04-13 12:14:00 +02:00
parent 9f51ff0b17
commit e5038d7e16
14 changed files with 884 additions and 4 deletions
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36
src/ClaudeDo.Worker/Hub/WorkerHub.cs
View File

@@ -1,16 +1,44 @@
using System.Reflection;
using ClaudeDo.Worker.Services;
using Microsoft.AspNetCore.SignalR;
namespace ClaudeDo.Worker.Hub;
/// <summary>
/// SignalR hub the UI connects to. Only <see cref="Ping"/> is implemented at this stage;
/// RunNow/CancelTask/WakeQueue/GetActive land here once QueueService exists.
/// </summary>
public sealed class WorkerHub : Microsoft.AspNetCore.SignalR.Hub
{
private static readonly string Version =
Assembly.GetExecutingAssembly().GetName().Version?.ToString(3) ?? "0.0.0";
private readonly QueueService _queue;
public WorkerHub(QueueService queue) => _queue = queue;
public string Ping() => $"pong v{Version}";
public IReadOnlyList<object> GetActive()
{
return _queue.GetActive()
.Select(a => (object)new { slot = a.slot, taskId = a.taskId, startedAt = a.startedAt })
.ToList();
}
public async Task RunNow(string taskId)
{
try
{
await _queue.RunNow(taskId);
}
catch (InvalidOperationException)
{
throw new HubException("override slot busy");
}
catch (KeyNotFoundException)
{
throw new HubException("task not found");
}
}
public bool CancelTask(string taskId) => _queue.CancelTask(taskId);
public void WakeQueue() => _queue.WakeQueue();
}