Merge pull request #16 from saphid/keep-awake

Keep the Frame awake during agent work

scripts/keep-awake.sh

@@ -0,0 +1,74 @@
+#!/usr/bin/env zsh
+# Mac-side: stop the Steam Frame from going to sleep while an agent works on it.
+#
+# The Frame sleeps when Steam's own idle timer runs out ("Sleep after
+# inactivity": 60 min on AC, 15 min on battery by default). SSH activity
+# doesn't count as input, and asleep the Frame is off the network. `on` sets
+# both timers to Never through Steam's UI (DevTools on 127.0.0.1:8080, via
+# ui/frame_steam.py) and holds a logind sleep inhibitor as a user unit.
+# `off` drops the inhibitor and restores the timers `on` saved.
+#
+# Usage:
+#   scripts/keep-awake.sh on
+#   scripts/keep-awake.sh off
+#   scripts/keep-awake.sh status
+set -euo pipefail
+
+FRAME_ALIAS=${FRAME_ALIAS:-frame}
+HERE=${0:A:h}
+cmd=${1:-status}
+case $cmd in on|off|status) ;; *) echo "usage: keep-awake.sh on|off|status" >&2; exit 2 ;; esac
+
+ssh -o ConnectTimeout=8 "$FRAME_ALIAS" \
+  'mkdir -p ~/.cache/frame-control && cat > ~/.cache/frame-control/frame_steam.py' < "$HERE/../ui/frame_steam.py"
+
+# Runs on the Frame. Verified 2026-09-28 (BUILD_ID 20260925.6191901): the
+# timers are client settings system_idle_suspend_{ac,battery}_sec (0 = Never),
+# written the way Steam's settings page does (steamui module exporting the
+# SetSetting wrapper). logind refuses an inhibitor from an SSH session
+# ("Interactive authentication required") but allows one from a user unit.
+ssh "$FRAME_ALIAS" python3 - "$cmd" <<'EOF'
+import json, os, subprocess, sys
+sys.path.insert(0, os.path.expanduser("~/.cache/frame-control"))
+from frame_steam import Page
+
+cmd = sys.argv[1]
+saved_path = os.path.expanduser("~/.cache/frame-control/keep-awake.json")
+unit = "fc-keep-awake"
+keys = ("system_idle_suspend_ac_sec", "system_idle_suspend_battery_sec")
+
+if cmd == "off":  # release the lock first, even if Steam's UI is down
+    subprocess.run(["systemctl", "--user", "stop", unit], stderr=subprocess.DEVNULL)
+page = Page()
+def read():
+    return {k: page.eval(f"settingsStore.clientSettings.{k}") for k in keys}
+def write(values):
+    page.eval("""(async () => { let req;
+      webpackChunksteamui.push([[Symbol()], {}, r => { req = r }]);
+      const mod = Object.keys(req.m).map(id => req.m[id].toString().includes("Settings.SetSetting") ? req(id) : null).find(Boolean);
+      const set = Object.values(mod).find(f => typeof f == "function" && f.toString().includes("SetSetting("));
+      for (const [k, v] of Object.entries(%s)) await set(k, v);
+      await new Promise(r => setTimeout(r, 1000)); })()""" % json.dumps(values))
+def inhibitor():
+    return subprocess.run(["systemctl", "--user", "is-active", "-q", unit]).returncode == 0
+
+if cmd == "on":
+    current = read()
+    if not os.path.exists(saved_path):
+        with open(saved_path, "w") as f:
+            json.dump(current, f)
+    write({k: 0 for k in keys})
+    if not inhibitor():
+        subprocess.run(["systemd-run", "--user", "-q", f"--unit={unit}",
+                        "--description=Frame Control: keep the Frame awake",
+                        "systemd-inhibit", "--what=sleep:idle:handle-suspend-key:handle-power-key",
+                        "--who=Frame Control", "--why=Keep the Frame awake while an agent works on it",
+                        "--mode=block", "sleep", "infinity"], check=True)
+elif cmd == "off":
+    if os.path.exists(saved_path):  # no backup: leave the timers as they are
+        with open(saved_path) as f:
+            write(json.load(f))
+        os.remove(saved_path)
+
+print(json.dumps({"timers": read(), "inhibitor": inhibitor()}))
+EOF