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backend/api/system_api.py

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+"""API de surveillance des ressources système."""
+
+import logging
+from fastapi import APIRouter, Request
+from fastapi.responses import JSONResponse
+
+logger = logging.getLogger(__name__)
+router = APIRouter()
+
+
+@router.get("/system/stats")
+async def system_stats(request: Request):
+    """Ressources système en temps réel."""
+    sys_svc = request.app.state.system_service
+    return sys_svc.get_stats()
+
+
+@router.get("/system/services")
+async def system_services(request: Request):
+    """Statut des services systemd."""
+    sys_svc = request.app.state.system_service
+    return sys_svc.get_services_status()
+
+
+@router.get("/system/photobooth")
+async def photobooth_status(request: Request):
+    """Vérifie si photobooth-app répond."""
+    pb = request.app.state.photobooth_service
+    alive = await pb.is_alive()
+    return {"alive": alive, "url": request.app.state.config.photobooth.base_url}
+
+
+@router.post("/system/button/simulate")
+async def simulate_button(request: Request, clicks: int = 1):
+    """Simule un appui bouton (dev/test uniquement)."""
+    btn = request.app.state.button_service
+    if clicks == 0:
+        btn.simulate_long_press()
+    else:
+        btn.simulate_click(clicks)
+    return {"ok": True, "simulated_clicks": clicks}
+
+
+@router.post("/system/relay")
+async def control_relay(request: Request, state: str = "on"):
+    """Force le relay ON/OFF."""
+    btn = request.app.state.button_service
+    if state == "on":
+        btn.relay_on()
+    else:
+        btn.relay_off()
+    return {"ok": True, "relay": state}