77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
/*
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* itd uses bluetooth low energy to communicate with InfiniTime devices
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* Copyright (C) 2021 Arsen Musayelyan
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package cmd
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import (
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"bufio"
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"encoding/json"
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"fmt"
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"net"
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"github.com/rs/zerolog/log"
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"github.com/spf13/cobra"
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"go.arsenm.dev/itd/internal/types"
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)
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// heartCmd represents the heart command
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var heartCmd = &cobra.Command{
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Use: "heart",
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Short: "Get heart rate from InfiniTime",
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Run: func(cmd *cobra.Command, args []string) {
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// Connect to itd UNIX socket
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conn, err := net.Dial("unix", SockPath)
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if err != nil {
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log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
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}
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defer conn.Close()
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// Encode request into connection
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err = json.NewEncoder(conn).Encode(types.Request{
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Type: ReqTypeHeartRate,
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})
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if err != nil {
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log.Fatal().Err(err).Msg("Error making request")
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}
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// Read one line from connection
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line, _, err := bufio.NewReader(conn).ReadLine()
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if err != nil {
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log.Fatal().Err(err).Msg("Error reading line from connection")
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}
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var res types.Response
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// Decode line into response
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err = json.Unmarshal(line, &res)
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if err != nil {
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log.Fatal().Err(err).Msg("Error decoding JSON data")
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}
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if res.Error {
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log.Fatal().Msg(res.Message)
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}
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// Print returned BPM
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fmt.Printf("%d BPM\n", int(res.Value.(float64)))
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},
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}
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func init() {
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getCmd.AddCommand(heartCmd)
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}
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