Append an optional station log and announce the software after login.

A log path that cannot be written leaves the station on the reflector, and the reflector learns which program joined.

Co-authored-by: Cursor <cursoragent@cursor.com>

station/station.go

@@ -5,6 +5,7 @@ package station
 import (
 	"context"
 	"net"
+	"os"
 	"sync"
 	"time"
 
@@ -48,6 +49,16 @@ type Station struct {
 	lastUDPSend  time.Time
 	enc          *opus.Encoder
 	dec          *opus.Decoder
+
+	logFile   *os.File
+	logPath   string
+	logNotice string
+	up        bool
+	outage    bool
+	sending   bool
+	sendStart time.Time
+	talkCall  string
+	talkStart time.Time
 }
 
 // New loads the config at opt.ConfigPath. A missing file is created mode 0600
@@ -61,17 +72,26 @@ func New(opt Options) (*Station, error) {
 	if clock == nil {
 		clock = wallClock{}
 	}
+	detail := "Idle"
+	if cfg.logNotice != "" {
+		detail = cfg.logNotice
+	}
 	s := &Station{
-		cfg:   cfg,
-		clock: clock,
-		wake:  make(chan struct{}, 1),
+		cfg:       cfg,
+		clock:     clock,
+		wake:      make(chan struct{}, 1),
+		logPath:   cfg.logPath,
+		logNotice: cfg.logNotice,
 		state: State{
 			Connection: "Disconnected",
-			Detail:     "Idle",
+			Detail:     detail,
 			Callsign:   cfg.callsign,
 			TalkGroup:  cfg.talkGroup,
 		},
 	}
+	if cfg.enableLogging {
+		s.openLog()
+	}
 	return s, nil
 }