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package internal
import (
"github.com/godbus/dbus/v5"
"log"
"sort"
"strings"
"time"
)
type Monitor struct {
scanner *Scanner
keyboard *KeyboardInfo
callback func(*KeyboardInfo)
ticker *time.Ticker
stopCh chan struct{}
notifications *NotificationManager
config *Config
lastConnected bool
}
func NewMonitor(scanner *Scanner, config *Config) (*Monitor, error) {
notifications, err := NewNotificationManager()
if err != nil {
log.Printf("Warning: Could not initialize notifications: %v", err)
notifications = nil
}
return &Monitor{
scanner: scanner,
stopCh: make(chan struct{}),
keyboard: &KeyboardInfo{LeftBattery: -1, RightBattery: -1},
notifications: notifications,
config: config,
lastConnected: false,
}, nil
}
func (m *Monitor) SetDevice(name, address string) {
m.keyboard.Name = name
m.keyboard.Address = address
}
func (m *Monitor) SetCallback(cb func(*KeyboardInfo)) {
m.callback = cb
}
func (m *Monitor) UpdateConfig(config *Config) {
m.config = config
}
func (m *Monitor) Start(interval time.Duration) {
m.ticker = time.NewTicker(interval)
go m.run()
}
func (m *Monitor) Stop() {
if m.ticker != nil {
m.ticker.Stop()
}
if m.notifications != nil {
m.notifications.Close()
}
close(m.stopCh)
}
func (m *Monitor) UpdateInterval(interval time.Duration) {
if m.ticker != nil {
m.ticker.Reset(interval)
}
}
func (m *Monitor) run() {
m.update() // Initial update
for {
select {
case <-m.ticker.C:
m.update()
case <-m.stopCh:
return
}
}
}
func (m *Monitor) update() {
_, path, err := m.scanner.FindDevice(m.keyboard.Address)
if err != nil || path == "" {
m.keyboard.Connected = false
m.handleConnectionChange()
m.notify()
return
}
m.keyboard.Connected = m.scanner.IsConnected(path)
m.handleConnectionChange()
if !m.keyboard.Connected {
m.notify()
return
}
prevLeft, prevRight := m.keyboard.LeftBattery, m.keyboard.RightBattery
m.getBatteryLevels(path)
if m.config.ShowNotifications && m.notifications != nil {
m.checkLowBattery(prevLeft, prevRight)
}
m.notify()
}
func (m *Monitor) handleConnectionChange() {
if m.config.ShowNotifications && m.notifications != nil && m.lastConnected != m.keyboard.Connected {
m.notifications.ShowConnectionNotification(m.keyboard.Name, m.keyboard.Connected)
}
m.lastConnected = m.keyboard.Connected
}
func (m *Monitor) checkLowBattery(prevLeft, prevRight int) {
threshold := m.config.LowBatteryThreshold
// Only notify when battery drops to/below threshold, not on every update
if m.keyboard.LeftBattery >= 0 && m.keyboard.LeftBattery <= threshold {
if prevLeft < 0 || prevLeft > threshold {
m.notifications.ShowLowBatteryNotification("Left", m.keyboard.LeftBattery, threshold)
}
}
if m.keyboard.RightBattery >= 0 && m.keyboard.RightBattery <= threshold {
if prevRight < 0 || prevRight > threshold {
m.notifications.ShowLowBatteryNotification("Right", m.keyboard.RightBattery, threshold)
}
}
}
func (m *Monitor) getBatteryLevels(devicePath dbus.ObjectPath) {
m.keyboard.LeftBattery, m.keyboard.RightBattery = -1, -1
objects, err := m.scanner.GetManagedObjects()
if err != nil {
return
}
var services []dbus.ObjectPath
prefix := string(devicePath) + "/"
for path, ifaces := range objects {
if !strings.HasPrefix(string(path), prefix) {
continue
}
if serviceProps, ok := ifaces["org.bluez.GattService1"]; ok {
if uuid, ok := serviceProps["UUID"].Value().(string); ok && strings.ToLower(uuid) == "0000180f-0000-1000-8000-00805f9b34fb" {
services = append(services, path)
}
}
}
sort.Slice(services, func(i, j int) bool { return services[i] < services[j] })
for i, service := range services {
if level := m.readBatteryLevel(service, objects); level >= 0 {
if i == 0 {
m.keyboard.LeftBattery = level
} else if i == 1 {
m.keyboard.RightBattery = level
}
}
}
// Fallback to legacy method
if len(services) == 1 && m.keyboard.RightBattery == -1 {
if level, err := m.scanner.GetLegacyBattery(devicePath); err == nil {
m.keyboard.LeftBattery = level
}
}
if m.keyboard.LeftBattery >= 0 || m.keyboard.RightBattery >= 0 {
m.keyboard.LastUpdate = time.Now()
}
}
func (m *Monitor) readBatteryLevel(servicePath dbus.ObjectPath, objects map[dbus.ObjectPath]map[string]map[string]dbus.Variant) int {
prefix := string(servicePath) + "/"
for path, ifaces := range objects {
if !strings.HasPrefix(string(path), prefix) {
continue
}
if charProps, ok := ifaces["org.bluez.GattCharacteristic1"]; ok {
if uuid, ok := charProps["UUID"].Value().(string); ok && strings.ToLower(uuid) == "00002a19-0000-1000-8000-00805f9b34fb" {
if data, err := m.scanner.ReadCharacteristic(path); err == nil && len(data) > 0 {
level := int(data[0])
if level == 255 {
return -1
}
return level
}
}
}
}
return -1
}
func (m *Monitor) notify() {
if m.callback != nil {
m.callback(m.keyboard)
}
}
func (m *Monitor) GetKeyboard() *KeyboardInfo {
return m.keyboard
}
|