feat: Themes added, 4 themes available (3 dark, 1 light)

internal/antgenius/antgenius.go

@@ -16,6 +16,7 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	"hamlog/internal/applog"
@@ -56,6 +57,11 @@ type Client struct {
 	mu   sync.Mutex // guards conn + writes
 	conn net.Conn
 
+	// Auth handshake state (touched only on the runLoop/readLoop goroutine).
+	awaitingAuth bool
+	authTries    int
+	ready        atomic.Bool // init commands sent → keepalive may run
+
 	statusMu sync.RWMutex
 	status   Status
 	antennas map[int]string // index → name (rebuilt into status.Antennas)
@@ -152,25 +158,11 @@ func (c *Client) runLoop() {
 		c.setStatus(func(s *Status) { s.Connected = true; s.LastError = ""; s.Host = c.host })
 		applog.Printf("antgenius: TCP connected %s → %s", conn.LocalAddr(), conn.RemoteAddr())
 
-		// When reached remotely the device announces "V… AG AUTH" and refuses every
-		// command (R1|FF) until the client logs in. Sent FIRST so it's authenticated
-		// before the subscribe/get commands (the device processes the stream in
-		// order). On the LAN there's no AUTH and the password is blank → skipped.
-		if c.password != "" {
-			if err := c.send("login " + c.password); err != nil {
-				applog.Printf("antgenius: login send failed: %v", err)
-			} else {
-				applog.Printf("antgenius: sent login (password %d chars)", len(c.password))
-			}
-		}
-
-		// Subscribe to live updates and pull the initial state. Command set and
-		// order mirror a known-working Node-RED v4 client (WA9WUD).
-		for _, cmd := range []string{"antenna list", "sub port all", "port get 1", "port get 2"} {
-			if err := c.send(cmd); err != nil {
-				applog.Printf("antgenius: init send %q failed: %v", cmd, err)
-			}
-		}
+		// Auth + init are driven by the banner (handleLine): on "V… AG AUTH" with a
+		// password we send "auth code=<pw>" and only send the subscribe/get commands
+		// once it's accepted (retrying on FF); without AUTH they go out immediately.
+		c.awaitingAuth, c.authTries = false, 0
+		c.ready.Store(false)
 
 		done := make(chan struct{})
 		go c.keepalive(conn, done)
@@ -207,12 +199,27 @@ func (c *Client) keepalive(conn net.Conn, done chan struct{}) {
 		case <-c.stop:
 			return
 		case <-t.C:
+			if !c.ready.Load() {
+				continue // not authenticated / subscribed yet
+			}
 			_ = c.send("port get 1")
 			_ = c.send("port get 2")
 		}
 	}
 }
 
+// sendInit subscribes to live updates and pulls the initial state. Called once
+// the link is ready (authenticated, or immediately when no AUTH is required).
+// Command set/order mirror a known-working Node-RED v4 client (WA9WUD).
+func (c *Client) sendInit() {
+	c.ready.Store(true)
+	for _, cmd := range []string{"antenna list", "sub port all", "port get 1", "port get 2"} {
+		if err := c.send(cmd); err != nil {
+			applog.Printf("antgenius: init send %q failed: %v", cmd, err)
+		}
+	}
+}
+
 func (c *Client) readLoop(conn net.Conn) error {
 	r := bufio.NewReader(conn)
 	var sb strings.Builder
@@ -267,16 +274,31 @@ func (c *Client) handleLine(line string) {
 	if line == "" {
 		return
 	}
-	// Banner like "V4.1.16 AG" — just confirms the link is up.
+	// Banner: "V4.1.16 AG" (LAN) or "V4.1.16 AG AUTH" (remote). It drives what we
+	// send next — authenticate first when AUTH is announced, else go straight to
+	// the subscribe/get commands.
 	if line[0] == 'V' && strings.Contains(line, "AG") {
 		c.setStatus(func(s *Status) { s.Connected = true; s.LastError = "" })
+		if strings.Contains(line, "AUTH") && c.password != "" {
+			c.awaitingAuth, c.authTries = true, 1
+			applog.Printf("antgenius: AUTH required — authenticating")
+			_ = c.send("auth code=" + c.password)
+		} else {
+			if strings.Contains(line, "AUTH") {
+				applog.Printf("antgenius: device requires AUTH but no remote password set (Settings → Antenna Genius)")
+			}
+			c.sendInit()
+		}
 		return
 	}
 	// R<seq>|<hex>|<message>  or  S<seq>|<message>
-	var msg string
+	var hexCode, msg string
 	switch {
 	case strings.HasPrefix(line, "R"):
 		p := strings.SplitN(line, "|", 3)
+		if len(p) >= 2 {
+			hexCode = p[1]
+		}
 		if len(p) == 3 {
 			msg = p[2]
 		}
@@ -287,6 +309,25 @@ func (c *Client) handleLine(line string) {
 		}
 	}
 	msg = strings.TrimSpace(msg)
+	// Auth result: the reply to "auth code=" carries an empty message; hex "0" =
+	// accepted. The device rejects the FIRST attempt (R|FF) and accepts a retry,
+	// so resend a few times before giving up.
+	if c.awaitingAuth && strings.HasPrefix(line, "R") && msg == "" {
+		switch {
+		case hexCode == "0":
+			c.awaitingAuth = false
+			applog.Printf("antgenius: authenticated")
+			c.sendInit()
+		case c.authTries < 4:
+			c.authTries++
+			applog.Printf("antgenius: auth rejected (R|%s|) — retry %d", hexCode, c.authTries)
+			_ = c.send("auth code=" + c.password)
+		default:
+			c.awaitingAuth = false
+			applog.Printf("antgenius: auth failed after %d tries (R|%s|) — check the remote password", c.authTries, hexCode)
+		}
+		return
+	}
 	switch {
 	case strings.HasPrefix(msg, "antenna "):
 		c.parseAntenna(msg)