Parse config at startup

1 files changed, 21 insertions, 2 deletions

diff --git a/config.go b/config.go
index a4f2805..e187827 100644
--- a/config.go
+++ b/config.go
@@ -3,15 +3,34 @@ package main
 import (
 	"encoding/json"
 	"io"
+	"net"
 	"os"
 	"path/filepath"
 )
 
 const configPathRelative = `.config/soundbox/config.json`
 
+type MacAddress net.HardwareAddr
+
+func (m *MacAddress) UnmarshalJSON(data []byte) error {
+	var macStr string
+	err := json.Unmarshal(data, &macStr)
+	if err != nil {
+		return err
+	}
+
+	hwAddr, err := net.ParseMAC(macStr)
+	if err != nil {
+		return err
+	}
+
+	*m = MacAddress(hwAddr)
+	return nil
+}
+
 type SoundboxConfig struct {
-	Name string `json:"name"`
-	Mac  string `json:"mac"`
+	Name string     `json:"name"`
+	Mac  MacAddress `json:"mac"`
 }
 
 type URLConfig struct {