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import json
from datetime import datetime, timezone
from pathlib import Path
from fastapi import FastAPI, HTTPException, Query, WebSocket, WebSocketDisconnect
from fastapi.middleware.cors import CORSMiddleware
from pydantic import BaseModel, Field
from fastapi.responses import FileResponse
from fastapi.staticfiles import StaticFiles
from starlette.concurrency import run_in_threadpool
from core.config import settings
from core.logger import logger, setup_logger
from api.realtime import manager
from inspection.report_repository import (
get_analytics_summary,
get_latest_report,
list_reports,
)
from inspection.service import inspect_base64_image
class InspectionRequest(BaseModel):
image_base64: str = Field(..., min_length=10)
filename: str | None = None
source: str = "upload"
persist: bool = True
llm_mode: Literal["off", "auto", "always"] = "off"
setup_logger()
FRONTEND_DIST_DIR = Path(settings.FRONTEND_DIST)
FRONTEND_INDEX = FRONTEND_DIST_DIR / "index.html"
app = FastAPI(
title="Manufacturing Monitoring System API",
version="2.0.0",
)
# -----------------------------
# CORS (IMPORTANT)
# -----------------------------
app.add_middleware(
CORSMiddleware,
allow_origins=list(settings.CORS_ORIGINS),
allow_credentials=False,
allow_methods=["*"],
allow_headers=["*"],
)
# -----------------------------
# ROOT
# -----------------------------
@app.get("/")
def root():
if FRONTEND_INDEX.exists():
return FileResponse(FRONTEND_INDEX)
return {
"message": "Manufacturing Monitoring System API running",
"timestamp": datetime.now(timezone.utc).isoformat(),
"origins": list(settings.CORS_ORIGINS),
}
@app.get("/health")
def health():
return {
"status": "ok",
"timestamp": datetime.now(timezone.utc).isoformat(),
}
# -----------------------------
# GET ALL REPORTS
# -----------------------------
@app.get("/reports")
def get_reports(limit: int = Query(default=settings.REPORT_FETCH_LIMIT, ge=1, le=200)):
return list_reports(limit=limit)
# -----------------------------
# GET LATEST REPORT
# -----------------------------
@app.get("/reports/latest")
def get_latest():
latest_report = get_latest_report()
return latest_report or {}
@app.get("/analytics/summary")
def analytics_summary(limit: int = Query(default=120, ge=1, le=500)):
return get_analytics_summary(limit=limit)
@app.post("/inspect/image")
async def inspect_image(payload: InspectionRequest):
try:
return await run_in_threadpool(
inspect_base64_image,
payload.image_base64,
source=payload.source or "upload",
metadata={"filename": payload.filename},
persist=payload.persist,
llm_mode=payload.llm_mode,
)
except ValueError as exc:
raise HTTPException(status_code=400, detail=str(exc)) from exc
except Exception as exc:
logger.exception("Image inspection failed")
raise HTTPException(status_code=500, detail="Image inspection failed") from exc
@app.post("/inspect/frame")
async def inspect_frame(payload: InspectionRequest):
try:
return await run_in_threadpool(
inspect_base64_image,
payload.image_base64,
source=payload.source or "camera",
metadata={"filename": payload.filename},
persist=payload.persist,
llm_mode=payload.llm_mode,
)
except ValueError as exc:
raise HTTPException(status_code=400, detail=str(exc)) from exc
except Exception as exc:
logger.exception("Camera frame inspection failed")
raise HTTPException(status_code=500, detail="Camera frame inspection failed") from exc
# -----------------------------
# WEBSOCKET ENDPOINT
# -----------------------------
@app.websocket("/ws")
async def websocket_endpoint(websocket: WebSocket):
await manager.connect(websocket)
latest_report = await run_in_threadpool(get_latest_report)
if latest_report:
await manager.send_json(
websocket,
{
"type": "inspection.snapshot",
**latest_report,
},
)
else:
await manager.send_json(
websocket,
{
"type": "connection.ready",
"timestamp": datetime.now(timezone.utc).isoformat(),
},
)
try:
while True:
message = await websocket.receive_text()
try:
payload = json.loads(message)
except json.JSONDecodeError:
payload = {"type": message}
if payload.get("type") == "ping":
await manager.send_json(
websocket,
{
"type": "pong",
"timestamp": datetime.now(timezone.utc).isoformat(),
},
)
except WebSocketDisconnect:
await manager.disconnect(websocket)
except Exception as exc:
logger.warning(f"WebSocket connection closed unexpectedly: {exc}")
await manager.disconnect(websocket)
if FRONTEND_DIST_DIR.exists():
assets_dir = FRONTEND_DIST_DIR / "assets"
if assets_dir.exists():
app.mount("/assets", StaticFiles(directory=assets_dir), name="frontend-assets")
@app.get("/{full_path:path}", include_in_schema=False)
async def frontend_routes(full_path: str):
candidate = FRONTEND_DIST_DIR / full_path
if candidate.is_file():
return FileResponse(candidate)
if FRONTEND_INDEX.exists():
return FileResponse(FRONTEND_INDEX)
raise HTTPException(status_code=404, detail="Not found")
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