itd/calls.go
razorkitty 1e8c9484d2 copy mpris implementation from infinitime library to itd, where it really belongs
moved dbus.go to an internal utils package
added context function parameter to initMusicCtrl and updated main.go to pass it
updated calls.go, maps.go, music.go, and notifs.go to use utils package for getting a dus connection
2022-11-21 19:59:54 +00:00

152 lines
3.8 KiB
Go

package main
import (
"context"
"sync"
"github.com/godbus/dbus/v5"
"github.com/rs/zerolog/log"
"go.arsenm.dev/infinitime"
"go.arsenm.dev/itd/internal/utils"
)
func initCallNotifs(ctx context.Context, dev *infinitime.Device) error {
// Connect to system bus. This connection is for method calls.
conn, err := utils.NewSystemBusConn(ctx)
if err != nil {
return err
}
// Check if modem manager interface exists
exists, err := modemManagerExists(ctx, conn)
if err != nil {
return err
}
// If it does not exist, stop function
if !exists {
conn.Close()
return nil
}
// Connect to system bus. This connection is for monitoring.
monitorConn, err := utils.NewSystemBusConn(ctx)
if err != nil {
return err
}
// Add match for new calls to monitor connection
err = monitorConn.AddMatchSignal(
dbus.WithMatchSender("org.freedesktop.ModemManager1"),
dbus.WithMatchInterface("org.freedesktop.ModemManager1.Modem.Voice"),
dbus.WithMatchMember("CallAdded"),
)
if err != nil {
return err
}
// Create channel to receive calls
callCh := make(chan *dbus.Message, 5)
// Notify channel upon received message
monitorConn.Eavesdrop(callCh)
var respHandlerOnce sync.Once
var callObj dbus.BusObject
go func() {
// For every message received
for event := range callCh {
// Get path to call object
callPath := event.Body[0].(dbus.ObjectPath)
// Get call object
callObj = conn.Object("org.freedesktop.ModemManager1", callPath)
// Get phone number from call object using method call connection
phoneNum, err := getPhoneNum(conn, callObj)
if err != nil {
log.Error().Err(err).Msg("Error getting phone number")
continue
}
// Send call notification to InfiniTime
resCh, err := dev.NotifyCall(phoneNum)
if err != nil {
continue
}
go respHandlerOnce.Do(func() {
// Wait for PineTime response
for res := range resCh {
switch res {
case infinitime.CallStatusAccepted:
// Attempt to accept call
err = acceptCall(ctx, conn, callObj)
if err != nil {
log.Warn().Err(err).Msg("Error accepting call")
}
case infinitime.CallStatusDeclined:
// Attempt to decline call
err = declineCall(ctx, conn, callObj)
if err != nil {
log.Warn().Err(err).Msg("Error declining call")
}
case infinitime.CallStatusMuted:
// Warn about unimplemented muting
log.Warn().Msg("Muting calls is not implemented")
}
}
})
}
}()
log.Info().Msg("Relaying calls to InfiniTime")
return nil
}
func modemManagerExists(ctx context.Context, conn *dbus.Conn) (bool, error) {
var names []string
err := conn.BusObject().CallWithContext(
ctx, "org.freedesktop.DBus.ListNames", 0,
).Store(&names)
if err != nil {
return false, err
}
return strSlcContains(names, "org.freedesktop.ModemManager1"), nil
}
// getPhoneNum gets a phone number from a call object using a DBus connection
func getPhoneNum(conn *dbus.Conn, callObj dbus.BusObject) (string, error) {
var out string
// Get number property on DBus object and store return value in out
err := callObj.StoreProperty("org.freedesktop.ModemManager1.Call.Number", &out)
if err != nil {
return "", err
}
return out, nil
}
// getPhoneNum accepts a call using a DBus connection
func acceptCall(ctx context.Context, conn *dbus.Conn, callObj dbus.BusObject) error {
// Call Accept() method on DBus object
call := callObj.CallWithContext(
ctx, "org.freedesktop.ModemManager1.Call.Accept", 0,
)
if call.Err != nil {
return call.Err
}
return nil
}
// getPhoneNum declines a call using a DBus connection
func declineCall(ctx context.Context, conn *dbus.Conn, callObj dbus.BusObject) error {
// Call Hangup() method on DBus object
call := callObj.CallWithContext(
ctx, "org.freedesktop.ModemManager1.Call.Hangup", 0,
)
if call.Err != nil {
return call.Err
}
return nil
}