--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/racc.py	Fri Mar 03 18:33:19 2023 -0800
@@ -0,0 +1,83 @@
+from starlette.applications import Starlette
+from starlette.exceptions import HTTPException
+from starlette.requests import Request
+from starlette.responses import JSONResponse, HTMLResponse
+from starlette.staticfiles import StaticFiles
+from starlette.routing import Route, Mount
+from starlette.templating import Jinja2Templates
+import uvicorn
+import psutil
+from starlette_exporter import PrometheusMiddleware, handle_metrics
+from prometheus_client import Summary, Gauge
+import background_loop
+from typing import List, Optional
+import logging
+import socket
+import sys
+if sys.implementation._multiarch == 'darwin':
+    import idle_osx as idle
+elif 'linux' in sys.implementation._multiarch:
+    import idle_linux as idle
+else:
+    raise NotImplementedError(repr(sys.implementation))
+
+hostname = socket.gethostname().split('.')[0]
+logging.basicConfig(level=logging.INFO)
+log = logging.getLogger()
+
+
+def progname(cmdline: List[str]) -> Optional[str]:
+    if len(cmdline) < 1:
+        return None
+    if cmdline[-1].endswith('/steam'):
+        return 'steam'
+    if cmdline[0].endswith('/minecraft-launcher'):
+        return 'minecraft-launcher'
+    if cmdline[0].endswith('/java') and '--versionType' in cmdline:
+        return 'minecraft'
+
+
+RACC_RUNNING = Gauge("racc_running", "program is running", ['host', 'prog'])
+RACC_IDLE = Gauge("racc_idle", "desktop mouse/kb idle seconds", ['host'])
+
+
+def update_progs(first_run):
+    out = []
+    progs = set()
+    for proc in psutil.process_iter(['pid', 'name']):
+        try:
+            prog = progname(proc.cmdline())
+            if prog:
+                progs.add(prog)
+        except (psutil.AccessDenied, psutil.NoSuchProcess):
+            pass
+
+    for p in [
+            'minecraft',
+            'minecraft-launcher',
+            'steam',
+    ]:
+        RACC_RUNNING.labels(host=hostname, prog=p).set(p in progs)
+    RACC_IDLE.labels(host=hostname).set(idle.get_idle_seconds())
+
+
+def root(req: Request) -> HTMLResponse:
+    return HTMLResponse(f'''controls for {hostname}''')
+
+
+def main():
+    app = Starlette(debug=True,
+                    routes=[
+                        Route('/', root),
+                    ],
+                    on_startup=[
+                        lambda: background_loop.loop_forever(update_progs, 3),
+                    ])
+
+    app.add_middleware(PrometheusMiddleware, app_name='racc')
+    app.add_route("/metrics", handle_metrics)
+    return app
+
+
+if __name__ == "__main__":
+    uvicorn.run(main(), host='0.0.0.0', port=5150)