From 08fd5dbb4010ce564348923aaef6e62b08998d2b Mon Sep 17 00:00:00 2001
From: Seth Freiberg <seth@sethfreiberg.com>
Date: Sun, 14 Jun 2026 16:12:50 -0400
Subject: [PATCH] feat: radio duplex/offset/tone control + tune_repeater

---
 radio.py | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/radio.py b/radio.py
index 986d881..080af07 100644
--- a/radio.py
+++ b/radio.py
@@ -156,3 +156,51 @@ class Radio:
     def squelch_open(self):
         data = self.transact(civ.CMD_METER, bytes([civ.SUB_SQL_STATUS])).data
         return bool(data[1]) if len(data) > 1 else False
+
+    # ---- repeater config (candidate commands; verify live) ----------------
+    def set_duplex(self, direction):
+        """direction: '+', '-', or 'simplex'."""
+        code = {"+": civ.DUP_PLUS, "-": civ.DUP_MINUS,
+                "simplex": civ.DUP_SIMPLEX}.get(direction)
+        if code is None:
+            raise ValueError(f"bad duplex {direction!r}")
+        return self._command(civ.CMD_DUPLEX, bytes([code]))
+
+    def set_offset(self, hz):
+        return self._command(civ.CMD_OFFSET, civ.offset_to_bcd(hz))
+
+    def get_offset(self):
+        return civ.bcd_to_offset(self.transact(civ.CMD_OFFSET).data)
+
+    def set_tone(self, hz):
+        return self._command(civ.CMD_TONE_PARAM,
+                             bytes([civ.SUB_RPT_TONE]) + civ.tone_to_bcd(hz))
+
+    def get_tone(self):
+        return civ.bcd_to_tone(self.transact(civ.CMD_TONE_PARAM,
+                                             bytes([civ.SUB_RPT_TONE])).data[1:])
+
+    def set_tone_on(self, on):
+        return self._command(civ.CMD_TONE_SWITCH,
+                             bytes([civ.SUB_TONE_ENC, 0x01 if on else 0x00]))
+
+    def tune_repeater(self, rec):
+        """Apply a normalized record: freq -> duplex/offset -> tone.
+        Returns (steps, errors): each step True/False; errors keyed by step."""
+        steps, errors = {}, {}
+
+        def attempt(name, fn):
+            try:
+                fn(); steps[name] = True
+            except (CIVError, ValueError, OSError) as e:
+                steps[name] = False; errors[name] = str(e)
+
+        attempt("freq", lambda: self.set_frequency(int(round(rec["output_mhz"] * 1e6))))
+        duplex = rec.get("duplex", "simplex")
+        attempt("duplex", lambda: self.set_duplex(duplex))
+        if duplex != "simplex":
+            attempt("offset", lambda: self.set_offset(int(round(rec.get("offset_mhz", 0) * 1e6))))
+        if rec.get("tone_mode") == "ctcss" and rec.get("tone_hz"):
+            attempt("tone_freq", lambda: self.set_tone(rec["tone_hz"]))
+            attempt("tone_on", lambda: self.set_tone_on(True))
+        return steps, errors