feat: service polls headset status and warns on low battery

headsetcontrol/service.luau

@@ -0,0 +1,87 @@
+local hsc = require("./lib/hsc.luau")
+
+local warned = false
+
+local function config()
+  return {
+    device = noctalia.getConfig("device"),
+    mock = noctalia.getConfig("mock"),
+    poll_interval = noctalia.getConfig("poll_interval"),
+    battery_low = noctalia.getConfig("battery_low"),
+  }
+end
+
+local function publishCaps(info)
+  if info == nil then
+    noctalia.state.set("caps", {})
+    noctalia.state.set("equalizerPresets", 0)
+    noctalia.state.set("error", "no_caps")
+    return
+  end
+  noctalia.state.set("caps", info.caps or {})
+  noctalia.state.set("equalizerPresets", info.equalizerPresets or 0)
+  noctalia.state.set("device", {
+    name = info.name,
+    product = info.product,
+    vendor = info.vendor,
+  })
+end
+
+local function handleStatus(status)
+  if status == nil then
+    noctalia.state.set("error", "unavailable")
+    noctalia.state.set("battery", { status = "BATTERY_UNAVAILABLE", level = -1 })
+    return
+  end
+  noctalia.state.set("error", "")
+  local battery = status.battery
+  noctalia.state.set("battery", battery)
+  noctalia.state.set("chatmix", status.chatmix)
+  noctalia.state.set("lastUpdate", noctalia.nowMs())
+  if battery.level and battery.level > 0 and battery.status ~= "BATTERY_UNAVAILABLE" then
+    local low = config().battery_low
+    if battery.level <= low and not warned then
+      warned = true
+      noctalia.notifyError(
+        noctalia.tr("notify.battery_low.title"),
+        string.format(noctalia.tr("notify.battery_low.body"), battery.level)
+      )
+    elseif battery.level > low + 5 then
+      warned = false
+    end
+  end
+end
+
+local function poll()
+  hsc.fetchStatus(handleStatus)
+end
+
+local function init()
+  local cfg = config()
+  hsc.init(cfg)
+  if not hsc.isMock() and not noctalia.commandExists("headsetcontrol") then
+    noctalia.state.set("error", "no_binary")
+    noctalia.state.set("caps", {})
+    noctalia.log("headsetcontrol binary not found; polling disabled")
+    return
+  end
+  hsc.fetchCapabilities(publishCaps)
+  noctalia.setUpdateInterval(cfg.poll_interval * 1000)
+  poll()
+end
+
+function update()
+  poll()
+end
+
+function onConfigChanged()
+  init()
+end
+
+function onIpc(event, _payload)
+  if event == "refresh" then
+    poll()
+  end
+end
+
+init()