Add call notification support
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parent
a1e08ed862
commit
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@ -4,7 +4,6 @@ import (
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"bytes"
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"encoding/binary"
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"errors"
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"fmt"
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"time"
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bt "github.com/muka/go-bluetooth/api"
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@ -17,6 +16,7 @@ const BTName = "InfiniTime"
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const (
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NewAlertChar = "00002a46-0000-1000-8000-00805f9b34fb"
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NotifEventChar = "00020001-78fc-48fe-8e23-433b3a1942d0"
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FirmwareVerChar = "00002a26-0000-1000-8000-00805f9b34fb"
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CurrentTimeChar = "00002a2b-0000-1000-8000-00805f9b34fb"
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BatteryLvlChar = "00002a19-0000-1000-8000-00805f9b34fb"
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@ -27,6 +27,7 @@ type Device struct {
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opts *Options
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device *device.Device1
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newAlertChar *gatt.GattCharacteristic1
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notifEventChar *gatt.GattCharacteristic1
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fwVersionChar *gatt.GattCharacteristic1
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currentTimeChar *gatt.GattCharacteristic1
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battLevelChar *gatt.GattCharacteristic1
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@ -41,10 +42,13 @@ var ErrNotFound = errors.New("could not find any advertising InfiniTime devices"
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type Options struct {
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AttemptReconnect bool
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WhitelistEnabled bool
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Whitelist []string
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}
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var DefaultOptions = &Options{
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AttemptReconnect: true,
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WhitelistEnabled: false,
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}
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// Connect will attempt to connect to a
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@ -58,7 +62,7 @@ func Connect(opts *Options) (*Device, error) {
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opts = DefaultOptions
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}
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// Attempt to connect to paired device by name
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dev, err := connectByName()
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dev, err := connectByName(opts)
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// If such device does not exist
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if errors.Is(err, ErrNoDevices) {
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// Attempt to pair device
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@ -128,7 +132,7 @@ func (i *Device) OnReconnect(f func()) {
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}
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// Connect connects to a paired InfiniTime device
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func connectByName() (*Device, error) {
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func connectByName(opts *Options) (*Device, error) {
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// Create new device
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out := &Device{}
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// Get devices from default adapter
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@ -140,6 +144,9 @@ func connectByName() (*Device, error) {
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for _, dev := range devs {
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// If device name is InfiniTime
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if dev.Properties.Name == BTName {
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if opts.WhitelistEnabled && !contains(opts.Whitelist, dev.Properties.Address) {
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continue
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}
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// Set outout device to discovered device
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out.device = dev
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break
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@ -161,6 +168,15 @@ func connectByName() (*Device, error) {
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return out, nil
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}
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func contains(ss []string, s string) bool {
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for _, str := range ss {
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if str == s {
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return true
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}
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}
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return false
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}
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// Pair attempts to discover and pair an InfiniTime device
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func pair() (*Device, error) {
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// Create new device
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@ -259,6 +275,8 @@ func (i *Device) resolveChars() error {
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switch char.Properties.UUID {
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case NewAlertChar:
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i.newAlertChar = char
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case NotifEventChar:
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i.notifEventChar = char
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case FirmwareVerChar:
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i.fwVersionChar = char
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case CurrentTimeChar:
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@ -414,7 +432,55 @@ func (i *Device) Notify(title, body string) error {
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return nil
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}
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return i.newAlertChar.WriteValue(
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[]byte(fmt.Sprintf("00\x00%s\x00%s", title, body)),
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append([]byte{0x00, 0x01, 0x00}, []byte(title+"\x00"+body)...),
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nil,
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)
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}
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// These constants represent the possible call statuses selected by the user
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const (
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CallStatusDeclined uint8 = iota
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CallStatusAccepted
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CallStatusMuted
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)
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// NotifyCall sends a call notification to the PineTime and returns a channel.
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// This channel will contain the user's response to the call notification. It
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// can only contain one value.
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func (i *Device) NotifyCall(from string) (<-chan uint8, error) {
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if !i.device.Properties.Connected {
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return make(<-chan uint8), nil
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}
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// Write call notification to new alert characteristic
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err := i.newAlertChar.WriteValue(
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append([]byte{0x03, 0x01, 0x00}, []byte(from)...),
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nil,
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)
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if err != nil {
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return nil, err
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}
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// Start notifications on notification event characteristic
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err = i.notifEventChar.StartNotify()
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if err != nil {
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return nil, err
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}
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// Watch properties of notification event characteristic
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ch, err := i.notifEventChar.WatchProperties()
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if err != nil {
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return nil, err
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}
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// Create new output channel for status
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out := make(chan uint8, 1)
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go func() {
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// For every event
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for event := range ch {
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// If value changed
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if event.Name == "Value" {
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// Send status to channel
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out <- uint8(event.Value.([]byte)[0])
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return
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}
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}
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}()
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return out, nil
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}
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