Files
zpark-ems/backend/app/api/v1/devices.py
Du Wenbo 026c837b91 Squashed 'core/' content from commit 92ec910
git-subtree-dir: core
git-subtree-split: 92ec910a132e379a3a6e442a75bcb07cac0f0010
2026-04-04 18:17:10 +08:00

207 lines
7.5 KiB
Python

from fastapi import APIRouter, Depends, HTTPException, Query
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select, func
from pydantic import BaseModel
from app.core.database import get_db
from app.core.deps import get_current_user, require_roles
from app.models.device import Device, DeviceType, DeviceGroup
from app.models.user import User
from app.services.audit import log_audit
router = APIRouter(prefix="/devices", tags=["设备管理"])
class DeviceCreate(BaseModel):
name: str
code: str
device_type: str
group_id: int | None = None
model: str | None = None
manufacturer: str | None = None
serial_number: str | None = None
rated_power: float | None = None
location: str | None = None
protocol: str | None = None
connection_params: dict | None = None
collect_interval: int = 15
class DeviceUpdate(BaseModel):
name: str | None = None
group_id: int | None = None
location: str | None = None
protocol: str | None = None
connection_params: dict | None = None
collect_interval: int | None = None
status: str | None = None
is_active: bool | None = None
@router.get("")
async def list_devices(
device_type: str | None = None,
group_id: int | None = None,
status: str | None = None,
page: int = Query(1, ge=1),
page_size: int = Query(20, ge=1, le=100),
db: AsyncSession = Depends(get_db),
user: User = Depends(get_current_user),
):
query = select(Device).where(Device.is_active == True)
if device_type:
query = query.where(Device.device_type == device_type)
if group_id:
query = query.where(Device.group_id == group_id)
if status:
query = query.where(Device.status == status)
count_query = select(func.count()).select_from(query.subquery())
total = (await db.execute(count_query)).scalar()
query = query.offset((page - 1) * page_size).limit(page_size).order_by(Device.id)
result = await db.execute(query)
devices = result.scalars().all()
return {"total": total, "items": [_device_to_dict(d) for d in devices]}
@router.get("/types")
async def list_device_types(db: AsyncSession = Depends(get_db), user: User = Depends(get_current_user)):
result = await db.execute(select(DeviceType).order_by(DeviceType.id))
return [{"id": t.id, "code": t.code, "name": t.name, "icon": t.icon} for t in result.scalars().all()]
@router.get("/groups")
async def list_device_groups(db: AsyncSession = Depends(get_db), user: User = Depends(get_current_user)):
result = await db.execute(select(DeviceGroup).order_by(DeviceGroup.id))
return [{"id": g.id, "name": g.name, "parent_id": g.parent_id, "location": g.location} for g in result.scalars().all()]
@router.get("/stats")
async def device_stats(db: AsyncSession = Depends(get_db), user: User = Depends(get_current_user)):
result = await db.execute(
select(Device.status, func.count(Device.id)).where(Device.is_active == True).group_by(Device.status)
)
stats = {row[0]: row[1] for row in result.all()}
return {"online": stats.get("online", 0), "offline": stats.get("offline", 0), "alarm": stats.get("alarm", 0), "maintenance": stats.get("maintenance", 0)}
@router.get("/{device_id}")
async def get_device(device_id: int, db: AsyncSession = Depends(get_db), user: User = Depends(get_current_user)):
result = await db.execute(select(Device).where(Device.id == device_id))
device = result.scalar_one_or_none()
if not device:
raise HTTPException(status_code=404, detail="设备不存在")
return _device_to_dict(device)
@router.post("")
async def create_device(data: DeviceCreate, db: AsyncSession = Depends(get_db), user: User = Depends(require_roles("admin", "energy_manager"))):
device = Device(**data.model_dump())
db.add(device)
await db.flush()
await log_audit(db, user.id, "create", "device", detail=f"创建设备 {data.name} ({data.code})")
return _device_to_dict(device)
@router.put("/{device_id}")
async def update_device(device_id: int, data: DeviceUpdate, db: AsyncSession = Depends(get_db), user: User = Depends(require_roles("admin", "energy_manager"))):
result = await db.execute(select(Device).where(Device.id == device_id))
device = result.scalar_one_or_none()
if not device:
raise HTTPException(status_code=404, detail="设备不存在")
updates = data.model_dump(exclude_unset=True)
for k, v in updates.items():
setattr(device, k, v)
await log_audit(db, user.id, "update", "device", detail=f"更新设备 {device.name}: {', '.join(updates.keys())}")
return _device_to_dict(device)
@router.get("/topology")
async def get_device_topology(
db: AsyncSession = Depends(get_db),
user: User = Depends(get_current_user),
):
"""设备拓扑树 - Full device tree with counts and status"""
# Get all groups
group_result = await db.execute(select(DeviceGroup).order_by(DeviceGroup.id))
groups = group_result.scalars().all()
# Get device counts and status per group
status_query = (
select(
Device.group_id,
Device.status,
func.count(Device.id).label('cnt'),
)
.where(Device.is_active == True)
.group_by(Device.group_id, Device.status)
)
status_result = await db.execute(status_query)
status_rows = status_result.all()
# Build status map: group_id -> {status: count}
group_stats: dict[int | None, dict[str, int]] = {}
for group_id, status, cnt in status_rows:
if group_id not in group_stats:
group_stats[group_id] = {}
group_stats[group_id][status] = cnt
# Build group nodes
group_map: dict[int, dict] = {}
for g in groups:
stats = group_stats.get(g.id, {})
device_count = sum(stats.values())
group_map[g.id] = {
"id": g.id,
"name": g.name,
"location": g.location,
"parent_id": g.parent_id,
"children": [],
"device_count": device_count,
"online_count": stats.get("online", 0),
"offline_count": stats.get("offline", 0),
"alarm_count": stats.get("alarm", 0),
}
# Build tree
roots = []
for gid, node in group_map.items():
pid = node["parent_id"]
if pid and pid in group_map:
group_map[pid]["children"].append(node)
else:
roots.append(node)
# Propagate child counts up
def propagate(node: dict) -> tuple[int, int, int, int]:
total = node["device_count"]
online = node["online_count"]
offline = node["offline_count"]
alarm = node["alarm_count"]
for child in node["children"]:
ct, co, coff, ca = propagate(child)
total += ct
online += co
offline += coff
alarm += ca
node["total_device_count"] = total
node["total_online"] = online
node["total_offline"] = offline
node["total_alarm"] = alarm
return total, online, offline, alarm
for root in roots:
propagate(root)
return roots
def _device_to_dict(d: Device) -> dict:
return {
"id": d.id, "name": d.name, "code": d.code, "device_type": d.device_type,
"group_id": d.group_id, "model": d.model, "manufacturer": d.manufacturer,
"serial_number": d.serial_number, "rated_power": d.rated_power,
"location": d.location, "protocol": d.protocol, "collect_interval": d.collect_interval,
"status": d.status, "is_active": d.is_active, "last_data_time": str(d.last_data_time) if d.last_data_time else None,
}