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a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 a2e3298 a243ca8 | 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 | from fastapi import APIRouter, HTTPException
from fastapi.responses import JSONResponse, StreamingResponse
from logging_config import get_logger
from models.schemas import ChatRequest, ServiceStatusResponse
from services.text_service import text_service
logger = get_logger("routers.text_router")
router = APIRouter(prefix="/v1/text", tags=["Text Generation"])
@router.post("/chat/completions")
async def create_chat_completion(request: ChatRequest) -> JSONResponse:
logger.info(
"Received chat completion request: messages=%d, stream=%s, return_json=%s",
len(request.messages),
request.stream,
request.return_json,
)
if not text_service.is_ready():
logger.warning("Chat completion request rejected: text model not ready")
raise HTTPException(status_code=503, detail="Text model is not ready")
try:
messages = [msg.model_dump() for msg in request.messages]
result = await text_service.generate_completion(
messages=messages,
temperature=request.temperature,
max_tokens=request.max_tokens,
stream=request.stream,
return_json=request.return_json,
)
if request.stream:
logger.info("Returning streaming response for chat completion")
return StreamingResponse(result, media_type="text/event-stream")
logger.info("Chat completion request fulfilled successfully")
return JSONResponse(content=result)
except ValueError as exc:
logger.warning("Invalid chat completion parameters: %s", exc)
raise HTTPException(status_code=400, detail=str(exc)) from exc
except RuntimeError as exc:
logger.error("Runtime error during chat completion: %s", exc)
raise HTTPException(status_code=503, detail=str(exc)) from exc
except Exception as exc:
logger.exception("Unexpected error during chat completion")
raise HTTPException(status_code=500, detail="Internal server error") from exc
@router.get("/health", response_model=ServiceStatusResponse)
async def text_health() -> ServiceStatusResponse:
ready = text_service.is_ready()
logger.debug("Text health check: ready=%s", ready)
return ServiceStatusResponse(
status="healthy" if ready else "initializing",
model_ready=ready,
)
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