code.octet-stream.net Git - broadcaster/blob - radio/config.go

   1 package main
   2
   3 import (
   4         "errors"
   5         "log"
   6         "os"
   7         "strings"
   8
   9         "github.com/BurntSushi/toml"
  10 )
  11
  12 type RadioConfig struct {
  13         GpioDevice string
  14         PTTPin     int
  15         COSPin     int
  16         ServerURL  string
  17         Token      string
  18         CachePath  string
  19         TimeZone   string
  20 }
  21
  22 func NewRadioConfig() RadioConfig {
  23         return RadioConfig{
  24                 GpioDevice: "gpiochip0",
  25                 PTTPin:     -1,
  26                 COSPin:     -1,
  27                 ServerURL:  "",
  28                 Token:      "",
  29                 CachePath:  "",
  30                 TimeZone:   "Australia/Hobart",
  31         }
  32 }
  33
  34 func (c *RadioConfig) LoadFromFile(path string) {
  35         _, err := toml.DecodeFile(path, &c)
  36         if err != nil {
  37                 log.Fatal("could not read config file for reading at path:", path, err)
  38         }
  39         err = c.Validate()
  40         if err != nil {
  41                 log.Fatal(err)
  42         }
  43         c.ApplyDefaults()
  44 }
  45
  46 func (c *RadioConfig) Validate() error {
  47         if c.ServerURL == "" {
  48                 return errors.New("ServerURL must be provided in the configuration")
  49         }
  50         if c.Token == "" {
  51                 return errors.New("Token must be provided in the configuration")
  52         }
  53         return nil
  54 }
  55
  56 func (c *RadioConfig) ApplyDefaults() {
  57         if c.CachePath == "" {
  58                 dir, err := os.MkdirTemp("", "broadcast")
  59                 if err != nil {
  60                         log.Fatal(err)
  61                 }
  62                 c.CachePath = dir
  63         }
  64 }
  65
  66 func (c *RadioConfig) WebsocketURL() string {
  67         addr := strings.Replace(c.ServerURL, "https://", "wss://", -1)
  68         addr = strings.Replace(addr, "http://", "ws://", -1)
  69         return addr + "/radio-ws"
  70 }