itd/cmd/itctl/watch/heart.go

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2021-10-24 18:02:29 +00:00
/*
* itd uses bluetooth low energy to communicate with InfiniTime devices
* Copyright (C) 2021 Arsen Musayelyan
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package watch
import (
"fmt"
"os"
"os/signal"
"syscall"
"github.com/rs/zerolog/log"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"go.arsenm.dev/itd/api"
)
// heartCmd represents the address command
var heartCmd = &cobra.Command{
Use: "heart",
Short: "Watch InfiniTime's heart rate for changes",
Run: func(cmd *cobra.Command, args []string) {
client := viper.Get("client").(*api.Client)
heartRateCh, cancel, err := client.WatchHeartRate()
if err != nil {
log.Fatal().Err(err).Msg("Error getting heart rate channel")
}
defer cancel()
signalCh := make(chan os.Signal, 1)
go func() {
<-signalCh
cancel()
os.Exit(0)
}()
signal.Notify(signalCh,
syscall.SIGINT,
syscall.SIGTERM,
)
for heartRate := range heartRateCh {
fmt.Println(heartRate, "BPM")
}
},
}
func init() {
watchCmd.AddCommand(heartCmd)
// Here you will define your flags and configuration settings.
// Cobra supports Persistent Flags which will work for this command
// and all subcommands, e.g.:
// addressCmd.PersistentFlags().String("foo", "", "A help for foo")
// Cobra supports local flags which will only run when this command
// is called directly, e.g.:
// addressCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}