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3493993 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 | from __future__ import annotations
import asyncio
from pathlib import Path
from app.core.config import Settings
from app.core.exceptions import MediaAPIError, ProcessingError
from app.core.logger import get_logger
from app.projects.repositories.render_repository import ProjectRenderRepository
from app.projects.services.render_compiler import compile_render
from app.projects.services.render_service import ProjectRenderService
from app.security.assets import CanonicalAssetNotFoundError
from app.security.audit import AuditService
from app.services.cleanup import CleanupService
from app.services.ffmpeg_service import FFmpegService
logger = get_logger(__name__)
class ProjectRenderWorker:
"""Small cooperative worker; durable state remains the source of truth."""
def __init__(
self,
settings: Settings,
repository: ProjectRenderRepository,
renders: ProjectRenderService,
ffmpeg: FFmpegService,
cleanup: CleanupService,
audit: AuditService,
) -> None:
self.settings = settings
self.repository = repository
self.renders = renders
self.ffmpeg = ffmpeg
self.cleanup = cleanup
self.audit = audit
self._task: asyncio.Task[None] | None = None
self._stopping = asyncio.Event()
async def start(self) -> None:
if not self.settings.render_worker_enabled or self._task is not None:
return
self._stopping.clear()
self._task = asyncio.create_task(self._run(), name="project-render-worker")
async def stop(self) -> None:
self._stopping.set()
if self._task is not None:
self._task.cancel()
await asyncio.gather(self._task, return_exceptions=True)
self._task = None
async def _run(self) -> None:
while not self._stopping.is_set():
job = await self.repository.claim_next(
stale_after_seconds=self.settings.render_job_stale_after_seconds
)
if job is None:
try:
await asyncio.wait_for(
self._stopping.wait(), self.settings.render_worker_interval_seconds
)
except asyncio.TimeoutError:
pass
continue
try:
await self._execute(job)
except Exception:
logger.exception(
"project render worker execution failed",
extra={"render_id": job.id, "project_id": job.project_id},
)
async def _execute(self, job) -> None:
workspace = await self.cleanup.create_workspace(job.id)
staging = (
workspace.outputs
/ f"render-{job.id}.staging.{job.render_settings_json.get('format', 'mp4')}"
)
cancel_event = asyncio.Event()
render_task: asyncio.Task[None] | None = None
try:
await self.repository.ensure_project_active(job.id)
paths = await self.renders.resolve_asset_paths(job)
document = self.renders._document_from_job(job)
settings = job.render_settings_json
plan = compile_render(
document,
asset_paths=paths,
width=int(settings["width"]),
height=int(settings["height"]),
frame_rate=float(settings["frameRate"]),
output_format=str(settings["format"]),
quality=str(settings["quality"]),
preset=str(settings["preset"]),
)
logger.info(
"project render started",
extra={
"operation": "render.started",
"render_id": job.id,
"project_id": job.project_id,
"workspace_id": job.workspace_id,
"attempt": job.attempt_count,
},
)
render_task = asyncio.create_task(
self.ffmpeg.run(
[*plan.args, staging],
operation="project.render",
timeout=self.settings.render_job_timeout_seconds,
cancel_event=cancel_event,
)
)
while not render_task.done():
latest = await self.repository.heartbeat(job.id)
if latest is not None and latest.status == "cancelling":
cancel_event.set()
break
await asyncio.sleep(1)
try:
await render_task
except ProcessingError as exc:
if cancel_event.is_set():
await self.repository.cancel_worker(job.id)
await self._audit(job, "project.render_cancelled", {})
return
failed = await self.repository.fail(
job.id,
code="RENDER_PROCESSING_FAILED",
message=str(exc),
retryable=True,
)
if failed is not None and failed.status == "cancelled":
await self._audit(job, "project.render_cancelled", {})
elif failed is not None and failed.status == "failed":
await self._audit(
job,
"project.render_failed",
{"error_code": "RENDER_PROCESSING_FAILED"},
)
return
latest = await self.repository.get_worker(job.id)
if latest is not None and latest.status == "cancelling":
await self.repository.cancel_worker(job.id)
await self._audit(job, "project.render_cancelled", {})
return
filename = f"render-{job.id}.{plan.output_extension}"
published = await self.cleanup.publish_new(job.id, staging, filename)
if published is None:
# A prior attempt may have published before losing its worker
# lease or database connection. Reconcile that deterministic
# path instead of overwriting it or failing a safe retry.
published = self.cleanup.resolve_download(job.id, filename)
asset = await self.renders.assets.register_output(
workspace_id=job.workspace_id,
user_id=job.requested_by,
request_id=job.id,
path=published,
mime_type="video/webm" if plan.output_extension == "webm" else "video/mp4",
metadata={"project_render_id": job.id, "editor_revision": job.editor_revision},
project_id=job.project_id,
)
completed = await self.repository.complete(job.id, asset.id)
if completed.status == "cancelled":
await self.renders.assets.discard_output(
workspace_id=job.workspace_id,
asset_id=asset.id,
request_id=job.id,
filename=published.name,
)
await self.cleanup.remove_request(job.id)
await self._audit(job, "project.render_cancelled", {})
return
await self._audit(job, "project.render_completed", {"output_asset_id": asset.id})
except asyncio.CancelledError:
cancel_event.set()
if render_task is not None:
await asyncio.gather(render_task, return_exceptions=True)
stopped = await self.repository.fail(
job.id,
code="RENDER_WORKER_STOPPED",
message="Render worker stopped before completion.",
retryable=True,
)
if stopped is not None and stopped.status == "cancelled":
await self._audit(job, "project.render_cancelled", {})
raise
except (MediaAPIError, CanonicalAssetNotFoundError, ValueError) as exc:
code = getattr(exc, "code", "RENDER_INVALID")
failed = await self.repository.fail(
job.id, code=code, message=str(exc), retryable=False
)
if failed is not None and failed.status == "cancelled":
await self._audit(job, "project.render_cancelled", {})
else:
await self._audit(job, "project.render_failed", {"error_code": code})
except Exception:
logger.exception(
"project render failed unexpectedly",
extra={"render_id": job.id, "project_id": job.project_id},
)
failed = await self.repository.fail(
job.id,
code="RENDER_INTERNAL_ERROR",
message="Render processing failed.",
retryable=True,
)
if failed is not None and failed.status == "cancelled":
await self._audit(job, "project.render_cancelled", {})
elif failed is not None and failed.status == "failed":
await self._audit(
job, "project.render_failed", {"error_code": "RENDER_INTERNAL_ERROR"}
)
finally:
await self._remove(staging)
await self.cleanup.remove_temporary_request(job.id)
await self.cleanup.complete(job.id)
async def _audit(self, job, event_type: str, metadata: dict[str, object]) -> None:
await self.audit.record_event(
workspace_id=job.workspace_id,
user_id=job.requested_by,
api_key_id=None,
request_id=job.id,
event_type=event_type,
entity_type="project_render",
entity_id=job.id,
metadata={"project_id": job.project_id, **metadata},
)
logger.info(
"project render lifecycle event",
extra={
"operation": event_type,
"render_id": job.id,
"project_id": job.project_id,
"workspace_id": job.workspace_id,
"error_code": metadata.get("error_code"),
"result": event_type.rsplit(".", 1)[-1],
},
)
@staticmethod
async def _remove(path: Path) -> None:
try:
await asyncio.to_thread(path.unlink, missing_ok=True)
except OSError:
pass
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