Implemented basic device controls

app.py

@@ -1,34 +1,20 @@
+from __future__ import annotations
 from contextlib import asynccontextmanager
-from nt import device_encoding
 from typing import Annotated
 from fastapi import Depends, FastAPI, HTTPException
-from sqlmodel import SQLModel, Session, col, create_engine, select
-from netbrite import NetBrite, NetbriteConnectionException, Zone
+from sqlmodel import SQLModel, Session, create_engine, delete, select
+
+import netbrite as nb
 from db import (
-    APIAddNetBriteDevice,
-    APIGetNetBriteDevice,
-    APIGetZone,
-    APIMessages,
-    BaseNetBriteDevice,
-    BaseZone,
+    MessageDB,
+    NetBriteBase,
+    NetBriteDB,
+    NetBritePublic,
+    ZoneDB,
 )
 
-sqlite_file_name = "devices.db"
-sqlite_url = f"sqlite:///{sqlite_file_name}"
-
-connect_args = {"check_same_thread": False}
-engine = create_engine(sqlite_url, connect_args=connect_args)
-
-
-@asynccontextmanager
-async def lifespan(app: FastAPI):
-    print("creating tables")
-    create_db_and_tables()
-    yield
-
-
-def create_db_and_tables():
-    SQLModel.metadata.create_all(engine)
+DB_URL = "sqlite:///devices.db"
+engine = create_engine(DB_URL, connect_args={"check_same_thread": False})
 
 
 def get_session():
@@ -38,78 +24,161 @@ def get_session():
 
 SessionDep = Annotated[Session, Depends(get_session)]
 
+
+@asynccontextmanager
+async def lifespan(_: FastAPI):
+    SQLModel.metadata.create_all(engine)
+    load_devices_from_db()
+    yield
+
+
 app = FastAPI(lifespan=lifespan)
-devices: list[NetBrite] = []
+
+active_devices: dict[int, nb.NetBrite] = {}
+device_status: dict[int, bool] = {}
 
 
-@app.post("/api/device")
-def create_device(device: APIAddNetBriteDevice, session: SessionDep):
-    statement = select(BaseNetBriteDevice).where(
-        col(BaseNetBriteDevice.address) == device.address
-    )
-    result = session.exec(statement)
-    if result.first() != None:
-        raise HTTPException(400, "Device is already added")
+# ---------- routes ----------
+@app.post("/api/device", response_model=NetBritePublic)
+def create_device(device: NetBriteBase, session: SessionDep):
+    if session.exec(
+        select(NetBriteDB).where(NetBriteDB.address == device.address)
+    ).first():
+        raise HTTPException(400, "Device already exists")
+
+    db_device = NetBriteDB.model_validate(device)
+    session.add(db_device)
+    session.commit()
+    session.refresh(db_device)
+
+    load_device(db_device, session)
+    return db_device
+
+
+@app.get("/api/devices", response_model=list[NetBritePublic])
+def get_devices(session: SessionDep):
+    return session.exec(select(NetBriteDB)).all()
+
+
+@app.post("/api/devices/{device_id}", response_model=NetBritePublic)
+def update_device(device_id: int, session: SessionDep):
+    db_dev = session.get(NetBriteDB, device_id)
+    if not db_dev:
+        raise HTTPException(404, "Device not found")
+
+    return db_dev
+
+
+# TODO: implement me
+@app.post("/api/devices/{device_id}/reconnect")
+def connect_device(device_id: int, session: SessionDep) -> dict[str, bool]:
+    db_dev = session.get(NetBriteDB, device_id)
+    if not db_dev:
+        raise HTTPException(404, "Device not found")
 
     try:
-        netbrite_device = NetBrite(device.address, device.port)
-        devices.append(netbrite_device)
-    except NetbriteConnectionException as exc:
-        raise HTTPException(400, "Failed to connect to device")
+        active_devices[device_id] = nb.NetBrite(db_dev.address, db_dev.port)
+        device_status[device_id] = True
+        load_zones(session, device_id, active_devices[device_id])
+        return {"connected": True}
+    except nb.NetbriteConnectionException as exc:
+        device_status[device_id] = False
+        raise HTTPException(400, str(exc))
+
+
+@app.delete("/api/devices/{device_id}")
+def delete_device(device_id: int, session: SessionDep):
+    db_dev = session.get(NetBriteDB, device_id)
+    if not db_dev:
+        raise HTTPException(404, "Device not found")
+
+    delete: list[MessageDB | ZoneDB | NetBriteDB] = [db_dev]
+    for zone in db_dev.zones:
+        if zone.default_message != None:
+            delete.append(zone.default_message)
+        delete.append(zone)
+
+    if device_id in active_devices:
+        active_devices[device_id].sock.close()
+        del active_devices[device_id]
+
+    print(delete)
+    for i in delete:
+        session.delete(i)
 
-    dbdevice = BaseNetBriteDevice(address=device.address, port=device.port)
-    session.add(dbdevice)
     session.commit()
-    session.refresh(dbdevice)
-
-    return device
+    return 200
 
 
-@app.get("/api/devices")
-def get_devices(session: SessionDep):
-    db_devices: dict[int, BaseNetBriteDevice] = {}
-
-    statement = select(BaseZone, BaseNetBriteDevice).join(BaseNetBriteDevice)
-    results = session.exec(statement)
-
-    for zone, device in results:
-        if device.id == None:
-            continue
-        if not device.id in db_devices:
-            connected = devices.inde
-            get_device = APIGetNetBriteDevice(device., zones={})
-            db_devices[device.id] = device
-
-        db_devices[device.id].zones_list
+# ---------- helper ----------
+def load_devices_from_db() -> None:
+    with Session(engine) as session:
+        for device in session.exec(select(NetBriteDB)).all():
+            load_device(device, session)
 
 
-    for device in devices:
+def load_device(device: NetBriteDB, session: SessionDep):
+    id = device.id or 0
+    try:
+        active_devices[id] = nb.NetBrite(device.address, device.port)
+        device_status[id] = True
+        load_zones(session, id, active_devices[id])
+    except nb.NetbriteConnectionException as exc:
+        device_status[id] = False
+        print(f"Could not connect to {device.address}:{device.port} — {exc}")
 
-        zones: dict[str, APIGetZone] = {}
-        for index, zone in device.zones_list.items():
-            x, y, xend, yend = zone.rect
-            width = xend - x
-            height = yend - y
 
-            zones[index] = APIGetZone(
-                x=x,
-                y=y,
-                width=width,
-                height=height,
-                scroll_speed=zone.scroll_speed,
-                pause_duration=zone.pause_duration,
-                volume=zone.volume,
-                default_font=zone.default_font,
-                default_color=zone.default_color,
-                default_message=zone.initial_text,
+def load_zones(session: Session, device_id: int, net_dev: nb.NetBrite) -> None:
+    zones: dict[str, nb.Zone] = {}
+    statement = select(ZoneDB).where(ZoneDB.netbrite_id == device_id)
+
+    for zone in session.exec(statement).all():
+        msg = zone.default_message
+
+        default_msg = (
+            nb.Message(
+                text=msg.text,
             )
+            if msg
+            else nb.Message(f"Zone {zone.name}")
+        )
 
-    return devices
+        zones[zone.name] = nb.Zone(
+            x=zone.x,
+            y=zone.y,
+            width=zone.width,
+            height=zone.height,
+            scroll_speed=zone.scroll_speed,
+            pause_duration=zone.pause_duration,
+            volume=zone.volume,
+            default_font=zone.default_font,
+            default_color=zone.default_color,
+            initial_text=default_msg,
+        )
+
+    if zones:
+        net_dev.zones(zones)
 
 
-@app.get("/api/devices/{device_index}")
-def get_device(device_index: int):
-    if device_index > len(devices) - 1:
-        raise HTTPException(400, "Device doesn't exist")
+def create_default_zone(session: Session, device_id: int) -> None:
+    zone = ZoneDB(
+        name="0",
+        x=0,
+        y=0,
+        width=150,
+        height=7,
+        netbrite_id=device_id,
+    )
+    msg = MessageDB(
+        text="{erase}Welcome",
+        ttl=60,
+    )
+    session.add(msg)
+    session.add(zone)
 
-    return devices[device_index]
+    session.commit()
+    session.refresh(zone)
+    session.refresh(msg)
+
+    zone.default_message_id = msg.id
+    session.commit()