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0772b5a | 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 | """Async Client for interacting with the external Manim Video Generation Module."""
from __future__ import annotations
import asyncio
import logging
import os
from typing import Any, Dict, Optional, Union
from uuid import UUID
import httpx
from dotenv import load_dotenv
load_dotenv()
logger = logging.getLogger(__name__)
from manim_client.schemas import (
ErrorCode,
MathRenderRequest,
MathRenderResponse,
StructuredError,
VisualizationSpec,
)
DEFAULT_MANIM_SERVICE_URL = os.getenv("MANIM_SERVICE_URL", "http://127.0.0.1:8001")
DEFAULT_INTERNAL_TOKEN = os.getenv(
"MANIM_INTERNAL_TOKEN",
"4f8a3c2e1d0b9a8f7e6d5c4b3a2f1e0d9c8b7a6f5e4d3c2b1a0f9e8d7c6b5a4",
)
class ManimClient:
"""
Client connecting MathSolver to the external Manim Video Generation Agent.
API Boundary:
- POST /v1/math/generate: Submit VisualizationSpec
- GET /v1/math/jobs/{job_id}: Poll video rendering status and get video_url
"""
def __init__(
self,
base_url: Optional[str] = None,
internal_token: Optional[str] = None,
timeout: float = 30.0,
):
self.base_url = (base_url or DEFAULT_MANIM_SERVICE_URL).rstrip("/")
self.internal_token = internal_token or DEFAULT_INTERNAL_TOKEN
self.timeout = timeout
def _headers(self) -> Dict[str, str]:
return {
"Content-Type": "application/json",
"X-Internal-Token": self.internal_token,
}
async def check_health(self) -> bool:
"""Checks if the Manim video generation service is reachable."""
try:
async with httpx.AsyncClient(timeout=3.0) as client:
resp = await client.get(f"{self.base_url}/health")
return resp.status_code == 200
except Exception:
return False
async def submit_render_job(
self,
spec: VisualizationSpec,
callback_url: Optional[str] = None,
) -> MathRenderResponse:
"""
Submits a VisualizationSpec to the Manim service to queue video generation.
Endpoint: POST /v1/math/generate
"""
url = f"{self.base_url}/v1/math/generate"
spec_payload = spec.to_manim_dict() if hasattr(spec, "to_manim_dict") else spec.model_dump(mode="json")
payload = {"spec": spec_payload, "callback_url": callback_url}
logger.info(f"==[ManimClient] Submitting render job to {url}==")
try:
async with httpx.AsyncClient(timeout=self.timeout) as client:
response = await client.post(
url,
json=payload,
headers=self._headers(),
)
if response.status_code in (200, 201, 202):
data = response.json()
job_id = data.get("job_id")
if not job_id:
return MathRenderResponse(
job_id="error",
status="failed",
error=StructuredError(
code=ErrorCode.MANIM_REQUEST_FAILED,
message="Manim service did not return a valid job_id.",
),
)
logger.info(
f"[ManimClient] Render job queued successfully: job_id={job_id}, status={data.get('status')}"
)
return MathRenderResponse.model_validate(data)
else:
error_msg = f"HTTP {response.status_code}: {response.text[:200]}"
logger.warning(f"[ManimClient] Error response from Manim service: {error_msg}")
return MathRenderResponse(
job_id="error",
status="failed",
error=StructuredError(
code=ErrorCode.MANIM_REQUEST_FAILED,
message=f"Dịch vụ tạo video trả về mã lỗi HTTP {response.status_code}.",
),
)
except (httpx.ConnectError, httpx.ConnectTimeout) as e:
logger.warning(f"[ManimClient] Connection to Manim service at {self.base_url} failed: {e}")
return MathRenderResponse(
job_id="offline",
status="failed",
error=StructuredError(
code=ErrorCode.MANIM_UNAVAILABLE,
message="Không thể kết nối đến dịch vụ tạo video Manim (máy chủ ngoại vi không khả dụng).",
),
)
except httpx.TimeoutException as e:
logger.warning(f"[ManimClient] Request to Manim service timed out: {e}")
return MathRenderResponse(
job_id="timeout",
status="failed",
error=StructuredError(
code=ErrorCode.MANIM_TIMEOUT,
message="Yêu cầu gửi sang dịch vụ tạo video đã hết thời gian chờ (request timeout).",
),
)
except Exception as e:
logger.exception(f"[ManimClient] Unexpected error submitting render job: {e}")
return MathRenderResponse(
job_id="error",
status="failed",
error=StructuredError(
code=ErrorCode.INTERNAL_ERROR,
message="Đã xảy ra lỗi không xác định khi yêu cầu tạo video.",
),
)
async def get_job_status(self, job_id: Union[UUID, str]) -> MathRenderResponse:
"""
Polls the status of a video generation job.
Endpoint: GET /v1/math/jobs/{job_id}
"""
url = f"{self.base_url}/v1/math/jobs/{job_id}"
logger.debug(f"[ManimClient] Fetching status for job {job_id}")
try:
async with httpx.AsyncClient(timeout=self.timeout) as client:
response = await client.get(url, headers=self._headers())
if response.status_code == 200:
data = response.json()
resp = MathRenderResponse.model_validate(data)
if resp.status == "failed" and not isinstance(resp.error, StructuredError):
raw_err = resp.get_error_message() or "Animation rendering failed."
resp.error = StructuredError(
code=ErrorCode.MANIM_RENDER_FAILED,
message=raw_err,
)
return resp
elif response.status_code == 404:
return MathRenderResponse(
job_id=job_id,
status="failed",
error=StructuredError(
code=ErrorCode.JOB_NOT_FOUND,
message=f"Không tìm thấy tiến trình render video với ID '{job_id}'.",
),
)
else:
return MathRenderResponse(
job_id=job_id,
status="failed",
error=StructuredError(
code=ErrorCode.MANIM_REQUEST_FAILED,
message=f"Lỗi kiểm tra tiến trình: HTTP {response.status_code}.",
),
)
except (httpx.ConnectError, httpx.ConnectTimeout) as e:
return MathRenderResponse(
job_id=job_id,
status="failed",
error=StructuredError(
code=ErrorCode.MANIM_UNAVAILABLE,
message="Không thể kết nối đến máy chủ render video để kiểm tra trạng thái.",
),
)
except Exception as e:
return MathRenderResponse(
job_id=job_id,
status="failed",
error=StructuredError(
code=ErrorCode.INTERNAL_ERROR,
message=f"Lỗi kiểm tra trạng thái: {str(e)}",
),
)
async def poll_job_completion(
self,
job_id: Union[UUID, str],
timeout: float = 300.0,
poll_interval: float = 3.0,
) -> MathRenderResponse:
"""
Asynchronously polls until the job reaches a terminal status ('completed' or 'failed') or times out.
"""
start_time = asyncio.get_event_loop().time()
while True:
resp = await self.get_job_status(job_id)
if resp.is_terminal():
return resp
elapsed = asyncio.get_event_loop().time() - start_time
if elapsed >= timeout:
logger.warning(f"[ManimClient] Polling for job {job_id} timed out after {timeout:.1f}s")
return MathRenderResponse(
job_id=job_id,
status="failed",
error=StructuredError(
code=ErrorCode.MANIM_TIMEOUT,
message=f"Tiến trình dựng video đã vượt quá thời gian tối đa ({int(timeout)} giây).",
),
)
await asyncio.sleep(poll_interval)
async def wait_for_completion(
self,
job_id: Union[UUID, str],
poll_interval: float = 3.0,
max_wait: float = 300.0,
) -> MathRenderResponse:
"""Alias for poll_job_completion for API compatibility."""
return await self.poll_job_completion(job_id=job_id, timeout=max_wait, poll_interval=poll_interval)
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