| 1 | """Director callback channel. |
| 2 | |
| 3 | Receives remote director/Echo callbacks, applies workspace state changes, and |
| 4 | emits runtime/UI notifications without projecting the callback into the LLM |
| 5 | conversation. |
| 6 | """ |
| 7 | |
| 8 | from __future__ import annotations |
| 9 | |
| 10 | import asyncio |
| 11 | import hmac |
| 12 | import json |
| 13 | from pathlib import Path |
| 14 | from typing import Any, Callable |
| 15 | |
| 16 | from loguru import logger |
| 17 | |
| 18 | from nanobot.agent.tools.director import ( |
| 19 | GenerateEchoShotTool, |
| 20 | apply_echo_generate_shot_callback, |
| 21 | apply_merge_shot_callback, |
| 22 | ) |
| 23 | from nanobot.bus.events import OutboundMessage, RuntimeEvent |
| 24 | from nanobot.bus.queue import MessageBus |
| 25 | from nanobot.channels.base import BaseChannel |
| 26 | from nanobot.config.schema import Base, ToolsConfig |
| 27 | |
| 28 | |
| 29 | class DirectorCallbackConfig(Base): |
| 30 | """HTTP callback channel for remote director/Echo jobs.""" |
| 31 | |
| 32 | enabled: bool = False |
| 33 | host: str = "127.0.0.1" |
| 34 | port: int = 18791 |
| 35 | path_prefix: str = "/api/director" |
| 36 | secret: str = "" |
| 37 | |
| 38 | |
| 39 | class DirectorCallbackChannel(BaseChannel): |
| 40 | """Receive remote director callbacks as system-level runtime events.""" |
| 41 | |
| 42 | name = "director_callback" |
| 43 | display_name = "Director Callback" |
| 44 | |
| 45 | def __init__( |
| 46 | self, |
| 47 | config: Any, |
| 48 | bus: MessageBus, |
| 49 | *, |
| 50 | workspace: Path | None = None, |
| 51 | tools_config: ToolsConfig | None = None, |
| 52 | memory_review_runner: Callable[..., Any] | None = None, |
| 53 | memory_approval_runner: Callable[..., Any] | None = None, |
| 54 | shot_generation_runner: Callable[..., Any] | None = None, |
| 55 | ): |
| 56 | if isinstance(config, dict): |
| 57 | config = DirectorCallbackConfig.model_validate(config) |
| 58 | super().__init__(config, bus) |
| 59 | self.config: DirectorCallbackConfig = config |
| 60 | self.workspace = workspace or Path(".") |
| 61 | self._tools_config = tools_config or ToolsConfig() |
| 62 | self._runner: Any | None = None |
| 63 | self._memory_review_lock = asyncio.Lock() |
| 64 | if memory_review_runner is None: |
| 65 | from nanobot.director.memory_coordinator import run_memory_review_from_config |
| 66 | |
| 67 | memory_review_runner = run_memory_review_from_config |
| 68 | if memory_approval_runner is None: |
| 69 | from nanobot.director.r2v_memory_workflow import ( |
| 70 | auto_approve_review_and_prepare_next, |
| 71 | ) |
| 72 | |
| 73 | memory_approval_runner = auto_approve_review_and_prepare_next |
| 74 | self._memory_review_runner = memory_review_runner |
| 75 | self._memory_approval_runner = memory_approval_runner |
| 76 | self._shot_generation_runner = ( |
| 77 | shot_generation_runner or self._submit_memory_next_shot |
| 78 | ) |
| 79 | |
| 80 | @classmethod |
| 81 | def default_config(cls) -> dict[str, Any]: |
| 82 | return DirectorCallbackConfig().model_dump(by_alias=True) |
| 83 | |
| 84 | async def start(self) -> None: |
| 85 | try: |
| 86 | from aiohttp import web |
| 87 | except ImportError: |
| 88 | logger.error("director_callback requires aiohttp. Install with: pip install 'echo-director-agent[api]'") |
| 89 | return |
| 90 | |
| 91 | self._running = True |
| 92 | app = self.create_app() |
| 93 | runner = web.AppRunner(app) |
| 94 | self._runner = runner |
| 95 | await runner.setup() |
| 96 | site = web.TCPSite(runner, self.config.host, self.config.port) |
| 97 | await site.start() |
| 98 | logger.info( |
| 99 | "Director callback channel listening on http://{}:{}{}", |
| 100 | self.config.host, |
| 101 | self.config.port, |
| 102 | self._path_prefix(), |
| 103 | ) |
| 104 | try: |
| 105 | while self._running: |
| 106 | await asyncio.sleep(1) |
| 107 | finally: |
| 108 | await runner.cleanup() |
| 109 | self._runner = None |
| 110 | |
| 111 | async def stop(self) -> None: |
| 112 | self._running = False |
| 113 | if self._runner is not None: |
| 114 | try: |
| 115 | await self._runner.cleanup() |
| 116 | except Exception as exc: |
| 117 | logger.warning("director_callback cleanup failed: {}", exc) |
| 118 | self._runner = None |
| 119 | |
| 120 | async def send(self, msg: OutboundMessage) -> None: |
| 121 | logger.debug("director_callback has no outbound delivery target: {}", msg.metadata) |
| 122 | |
| 123 | def create_app(self) -> Any: |
| 124 | from aiohttp import web |
| 125 | |
| 126 | app = web.Application(client_max_size=20 * 1024 * 1024) |
| 127 | prefix = self._path_prefix() |
| 128 | app.router.add_get("/health", self._handle_health) |
| 129 | app.router.add_post(f"{prefix}/echo-generate-shot/callback", self._handle_echo_generate_callback) |
| 130 | app.router.add_post(f"{prefix}/merge-shot/callback", self._handle_merge_callback) |
| 131 | return app |
| 132 | |
| 133 | def _path_prefix(self) -> str: |
| 134 | raw = (self.config.path_prefix or "/api/director").strip() |
| 135 | if not raw.startswith("/"): |
| 136 | raw = f"/{raw}" |
| 137 | return raw.rstrip("/") or "/api/director" |
| 138 | |
| 139 | def _authorized(self, request: Any) -> bool: |
| 140 | secret = (self.config.secret or "").strip() |
| 141 | if not secret: |
| 142 | return True |
| 143 | supplied = ( |
| 144 | request.headers.get("X-Nanobot-Director-Secret") |
| 145 | or request.headers.get("X-Nanobot-Auth") |
| 146 | or "" |
| 147 | ).strip() |
| 148 | return bool(supplied) and hmac.compare_digest(supplied, secret) |
| 149 | |
| 150 | async def _parse_body(self, request: Any) -> dict[str, Any] | Any: |
| 151 | from aiohttp import web |
| 152 | |
| 153 | if not self._authorized(request): |
| 154 | return web.json_response({"error": "Unauthorized"}, status=401) |
| 155 | try: |
| 156 | body = await request.json() |
| 157 | except Exception: |
| 158 | return web.json_response({"error": "Invalid JSON body"}, status=400) |
| 159 | if not isinstance(body, dict): |
| 160 | return web.json_response({"error": "Callback body must be a JSON object"}, status=400) |
| 161 | return body |
| 162 | |
| 163 | async def _handle_health(self, request: Any) -> Any: |
| 164 | from aiohttp import web |
| 165 | |
| 166 | return web.json_response({"status": "ok"}) |
| 167 | |
| 168 | async def _handle_echo_generate_callback(self, request: Any) -> Any: |
| 169 | return await self._handle_callback( |
| 170 | request, |
| 171 | operation="generate_echo_shot", |
| 172 | apply_callback=apply_echo_generate_shot_callback, |
| 173 | result_fields=("result_urls", "updated_shots"), |
| 174 | ) |
| 175 | |
| 176 | async def _handle_merge_callback(self, request: Any) -> Any: |
| 177 | return await self._handle_callback( |
| 178 | request, |
| 179 | operation="merge_shot", |
| 180 | apply_callback=apply_merge_shot_callback, |
| 181 | result_fields=("final_output",), |
| 182 | ) |
| 183 | |
| 184 | async def _handle_callback( |
| 185 | self, |
| 186 | request: Any, |
| 187 | *, |
| 188 | operation: str, |
| 189 | apply_callback: Callable[..., dict[str, Any]], |
| 190 | result_fields: tuple[str, ...], |
| 191 | ) -> Any: |
| 192 | from aiohttp import web |
| 193 | |
| 194 | parsed = await self._parse_body(request) |
| 195 | if isinstance(parsed, web.Response): |
| 196 | return parsed |
| 197 | |
| 198 | try: |
| 199 | result = apply_callback( |
| 200 | self.workspace, |
| 201 | parsed, |
| 202 | tools_config=self._tools_config, |
| 203 | ) |
| 204 | except ValueError as exc: |
| 205 | return web.json_response({"error": str(exc)}, status=400) |
| 206 | except Exception: |
| 207 | logger.exception("director_callback: failed to apply {}", operation) |
| 208 | return web.json_response({"error": f"Failed to apply {operation} callback"}, status=500) |
| 209 | |
| 210 | logger.info( |
| 211 | "director_callback received operation={} work_id={} status={}", |
| 212 | operation, |
| 213 | result.get("work_id"), |
| 214 | result.get("status"), |
| 215 | ) |
| 216 | if result.get("duplicate"): |
| 217 | return web.json_response( |
| 218 | { |
| 219 | "status": "ok", |
| 220 | "operation": operation, |
| 221 | "job_id": result.get("job_id"), |
| 222 | "work_id": result.get("work_id"), |
| 223 | "duplicate": True, |
| 224 | "runtime_event": False, |
| 225 | "workplace_notified": False, |
| 226 | } |
| 227 | ) |
| 228 | self._schedule_memory_review(operation, parsed, result) |
| 229 | await self._publish_runtime_event(operation, parsed, result) |
| 230 | workplace_notified = await self._publish_workplace_updated(parsed, result) |
| 231 | logger.info( |
| 232 | "director_callback done operation={} workplace_notified={}", |
| 233 | operation, |
| 234 | workplace_notified, |
| 235 | ) |
| 236 | |
| 237 | response: dict[str, Any] = { |
| 238 | "status": "ok", |
| 239 | "operation": operation, |
| 240 | "job_id": result.get("job_id"), |
| 241 | "work_id": result.get("work_id"), |
| 242 | "runtime_event": True, |
| 243 | "workplace_notified": workplace_notified, |
| 244 | } |
| 245 | for field in result_fields: |
| 246 | response[field] = result.get(field) or ([] if field.endswith("s") else None) |
| 247 | return web.json_response(response) |
| 248 | |
| 249 | def _memory_review_enabled(self) -> bool: |
| 250 | return self._tools_config.memory_review.enabled |
| 251 | |
| 252 | def _memory_review_auto_approve_enabled(self) -> bool: |
| 253 | return self._tools_config.memory_review.auto_approve |
| 254 | |
| 255 | def _work_is_auto_generate(self, work_id: str) -> bool: |
| 256 | if not work_id: |
| 257 | return False |
| 258 | state_path = self.workspace / "director" / "works" / work_id / "state.json" |
| 259 | try: |
| 260 | data = json.loads(state_path.read_text(encoding="utf-8")) |
| 261 | except FileNotFoundError: |
| 262 | return False |
| 263 | except (OSError, json.JSONDecodeError) as exc: |
| 264 | logger.error( |
| 265 | "director_callback failed to read auto_generate work_id={} error={}", |
| 266 | work_id, |
| 267 | exc, |
| 268 | ) |
| 269 | return False |
| 270 | return isinstance(data, dict) and bool(data.get("auto_generate")) |
| 271 | |
| 272 | def _schedule_memory_review( |
| 273 | self, operation: str, body: dict[str, Any], result: dict[str, Any] |
| 274 | ) -> None: |
| 275 | if ( |
| 276 | operation != "generate_echo_shot" |
| 277 | or str(result.get("status") or "") != "completed" |
| 278 | or not self._memory_review_enabled() |
| 279 | ): |
| 280 | return |
| 281 | updated = result.get("updated_shots") |
| 282 | if not isinstance(updated, list) or not updated: |
| 283 | return |
| 284 | try: |
| 285 | shot_id = int(updated[0]["shot_id"]) |
| 286 | except (KeyError, TypeError, ValueError): |
| 287 | return |
| 288 | work_id = str(result.get("work_id") or body.get("work_id") or "").strip() |
| 289 | if work_id: |
| 290 | auto_select = ( |
| 291 | self._work_is_auto_generate(work_id) |
| 292 | or self._memory_review_auto_approve_enabled() |
| 293 | ) |
| 294 | if not auto_select: |
| 295 | try: |
| 296 | from nanobot.director.memory_coordinator import ( |
| 297 | initialize_memory_review_method_prompt, |
| 298 | ) |
| 299 | |
| 300 | initialize_memory_review_method_prompt( |
| 301 | workspace=self.workspace, |
| 302 | work_id=work_id, |
| 303 | shot_id=shot_id, |
| 304 | ) |
| 305 | except Exception: |
| 306 | logger.exception( |
| 307 | "director_callback: failed to initialize memory method prompt " |
| 308 | "work_id={} shot_id={}", |
| 309 | work_id, |
| 310 | shot_id, |
| 311 | ) |
| 312 | return |
| 313 | try: |
| 314 | from nanobot.director.memory_coordinator import mark_memory_review_selecting |
| 315 | |
| 316 | mark_memory_review_selecting( |
| 317 | workspace=self.workspace, |
| 318 | work_id=work_id, |
| 319 | shot_id=shot_id, |
| 320 | ) |
| 321 | except Exception: |
| 322 | logger.exception( |
| 323 | "director_callback: failed to mark memory selecting " |
| 324 | "work_id={} shot_id={}", |
| 325 | work_id, |
| 326 | shot_id, |
| 327 | ) |
| 328 | asyncio.create_task( |
| 329 | self._run_memory_review( |
| 330 | body=body, |
| 331 | result=result, |
| 332 | work_id=work_id, |
| 333 | shot_id=shot_id, |
| 334 | ) |
| 335 | ) |
| 336 | |
| 337 | async def _run_memory_review( |
| 338 | self, |
| 339 | *, |
| 340 | body: dict[str, Any], |
| 341 | result: dict[str, Any], |
| 342 | work_id: str, |
| 343 | shot_id: int, |
| 344 | ) -> None: |
| 345 | try: |
| 346 | async with self._memory_review_lock: |
| 347 | review = await asyncio.to_thread( |
| 348 | self._memory_review_runner, |
| 349 | workspace=self.workspace, |
| 350 | work_id=work_id, |
| 351 | shot_id=shot_id, |
| 352 | ) |
| 353 | if not isinstance(review, dict): |
| 354 | return |
| 355 | auto_generate = self._work_is_auto_generate(work_id) |
| 356 | if auto_generate or self._memory_review_auto_approve_enabled(): |
| 357 | next_shot_id = await asyncio.to_thread( |
| 358 | self._memory_approval_runner, |
| 359 | workspace=self.workspace, |
| 360 | work_id=work_id, |
| 361 | shot_id=shot_id, |
| 362 | ) |
| 363 | # Auto-generate lets the WebSocket workflow continue the next |
| 364 | # shot. Submitting here races generate_all. |
| 365 | if not auto_generate and next_shot_id is not None: |
| 366 | await asyncio.to_thread( |
| 367 | self._shot_generation_runner, |
| 368 | workspace=self.workspace, |
| 369 | work_id=work_id, |
| 370 | shot_id=int(next_shot_id), |
| 371 | body=body, |
| 372 | result=result, |
| 373 | ) |
| 374 | except Exception as exc: |
| 375 | logger.exception( |
| 376 | "director_callback: memory selection failed work_id={} shot_id={}", |
| 377 | work_id, |
| 378 | shot_id, |
| 379 | ) |
| 380 | try: |
| 381 | from nanobot.director.memory_coordinator import ( |
| 382 | initialize_memory_review_method_prompt, |
| 383 | ) |
| 384 | |
| 385 | await asyncio.to_thread( |
| 386 | initialize_memory_review_method_prompt, |
| 387 | workspace=self.workspace, |
| 388 | work_id=work_id, |
| 389 | shot_id=shot_id, |
| 390 | error=f"Memory review failed: {exc}", |
| 391 | ) |
| 392 | except Exception: |
| 393 | logger.exception( |
| 394 | "director_callback: failed to persist memory selection error " |
| 395 | "work_id={} shot_id={}", |
| 396 | work_id, |
| 397 | shot_id, |
| 398 | ) |
| 399 | finally: |
| 400 | await self._publish_workplace_updated(body, result) |
| 401 | |
| 402 | def _submit_memory_next_shot( |
| 403 | self, |
| 404 | *, |
| 405 | workspace: Path, |
| 406 | work_id: str, |
| 407 | shot_id: int, |
| 408 | body: dict[str, Any], |
| 409 | result: dict[str, Any], |
| 410 | ) -> dict[str, Any] | None: |
| 411 | """Submit the Memory-prepared next shot unless it is already in flight.""" |
| 412 | shot_path = ( |
| 413 | workspace / "director" / "works" / work_id / "shots" |
| 414 | / f"shot_{shot_id:03d}.json" |
| 415 | ) |
| 416 | try: |
| 417 | shot = json.loads(shot_path.read_text(encoding="utf-8")) |
| 418 | except (OSError, json.JSONDecodeError) as exc: |
| 419 | raise ValueError(f"next shot {shot_id} is unavailable") from exc |
| 420 | if not isinstance(shot, dict): |
| 421 | raise ValueError(f"next shot {shot_id} is invalid") |
| 422 | if str(shot.get("status") or "") in { |
| 423 | "queued", |
| 424 | "generated", |
| 425 | "review_pass", |
| 426 | "approved", |
| 427 | }: |
| 428 | return None |
| 429 | |
| 430 | references = shot.get("planned_reference_shot_ids") or [] |
| 431 | if not isinstance(references, list): |
| 432 | references = [] |
| 433 | reference_ids = [int(value) for value in references] |
| 434 | selection_note = str(shot.get("reference_selection_note") or "").strip() or None |
| 435 | channel_name = str(result.get("channel") or body.get("channel") or "").strip() |
| 436 | chat_id = str(result.get("chat_id") or body.get("chat_id") or "").strip() |
| 437 | session_key = str( |
| 438 | result.get("session_key") or body.get("session_key") or "" |
| 439 | ).strip() |
| 440 | tool = GenerateEchoShotTool( |
| 441 | workspace=workspace, |
| 442 | tools_config=self._tools_config, |
| 443 | ) |
| 444 | if channel_name and chat_id: |
| 445 | tool.set_context( |
| 446 | channel_name, |
| 447 | chat_id, |
| 448 | effective_key=session_key or f"{channel_name}:{chat_id}", |
| 449 | ) |
| 450 | return tool.apply_generate( |
| 451 | work_id, |
| 452 | shot_id, |
| 453 | reference_ids, |
| 454 | selection_note=selection_note, |
| 455 | ) |
| 456 | |
| 457 | async def _publish_runtime_event( |
| 458 | self, |
| 459 | operation: str, |
| 460 | body: dict[str, Any], |
| 461 | result: dict[str, Any], |
| 462 | ) -> None: |
| 463 | session_key = str(result.get("session_key") or body.get("session_key") or "").strip() or None |
| 464 | channel = str(result.get("channel") or body.get("channel") or "").strip() or None |
| 465 | chat_id = str(result.get("chat_id") or body.get("chat_id") or "").strip() or None |
| 466 | await self.bus.publish_runtime( |
| 467 | RuntimeEvent( |
| 468 | kind="director_remote_result", |
| 469 | source=self.name, |
| 470 | session_key=session_key, |
| 471 | channel=channel, |
| 472 | chat_id=chat_id, |
| 473 | payload={ |
| 474 | "operation": operation, |
| 475 | "work_id": result.get("work_id") or body.get("work_id"), |
| 476 | "job_id": result.get("job_id") or body.get("job_id"), |
| 477 | "status": body.get("status") or "completed", |
| 478 | "result": result, |
| 479 | }, |
| 480 | ) |
| 481 | ) |
| 482 | |
| 483 | async def _publish_workplace_updated( |
| 484 | self, |
| 485 | body: dict[str, Any], |
| 486 | result: dict[str, Any], |
| 487 | ) -> bool: |
| 488 | channel = str(result.get("channel") or body.get("channel") or "").strip() |
| 489 | chat_id = str(result.get("chat_id") or body.get("chat_id") or "").strip() |
| 490 | session_key = str(result.get("session_key") or body.get("session_key") or "").strip() |
| 491 | if channel != "websocket" or not chat_id: |
| 492 | logger.debug( |
| 493 | "director_callback workplace push SKIPPED channel={} chat_id={}", |
| 494 | channel or "-", |
| 495 | chat_id or "-", |
| 496 | ) |
| 497 | return False |
| 498 | work_id = result.get("work_id") or body.get("work_id") |
| 499 | media = result.get("video_paths") or result.get("result_urls") or result.get("media") or [] |
| 500 | logger.info( |
| 501 | "director_callback workplace push SENT work_id={} session={} chat_id={} media_count={}", |
| 502 | work_id or "-", |
| 503 | session_key, |
| 504 | chat_id, |
| 505 | len(media) if isinstance(media, list) else 0, |
| 506 | ) |
| 507 | await self.bus.publish_outbound( |
| 508 | OutboundMessage( |
| 509 | channel="websocket", |
| 510 | chat_id=chat_id, |
| 511 | content="", |
| 512 | media=media if isinstance(media, list) else [], |
| 513 | metadata={ |
| 514 | "_workplace_event": "updated", |
| 515 | "session_key": session_key, |
| 516 | **({"work_id": work_id} if isinstance(work_id, str) and work_id.strip() else {}), |
| 517 | }, |
| 518 | ) |
| 519 | ) |
| 520 | return True |
| 521 |