[fix](trx-frontend): use server decode history only

Remove APRS client-side persistence, reset decode views before replay,
and clear decode panes only after the server clears its history.

Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>

src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js

@@ -2373,6 +2373,31 @@ const locatorMarkers = new Map();
 const mapMarkers = new Set();
 const mapFilter = { aprs: true, ft8: true, wspr: true };
 
+window.clearMapMarkersByType = function(type) {
+  if (type === "aprs") {
+    stationMarkers.forEach((entry) => {
+      if (entry && entry.marker) {
+        if (aprsMap && aprsMap.hasLayer(entry.marker)) entry.marker.removeFrom(aprsMap);
+        mapMarkers.delete(entry.marker);
+      }
+    });
+    stationMarkers.clear();
+    return;
+  }
+
+  if (type === "ft8" || type === "wspr") {
+    const prefix = `${type}:`;
+    for (const [key, entry] of locatorMarkers.entries()) {
+      if (!key.startsWith(prefix)) continue;
+      if (entry && entry.marker) {
+        if (aprsMap && aprsMap.hasLayer(entry.marker)) entry.marker.removeFrom(aprsMap);
+        mapMarkers.delete(entry.marker);
+      }
+      locatorMarkers.delete(key);
+    }
+  }
+};
+
 function mapTileSpecForTheme(theme) {
   if (theme === "dark") {
     return {
@@ -3336,6 +3361,10 @@ function updateDecodeStatus(text) {
 }
 function connectDecode() {
   if (decodeSource) { decodeSource.close(); }
+  if (window.resetAprsHistoryView) window.resetAprsHistoryView();
+  if (window.resetCwHistoryView) window.resetCwHistoryView();
+  if (window.resetFt8HistoryView) window.resetFt8HistoryView();
+  if (window.resetWsprHistoryView) window.resetWsprHistoryView();
   decodeSource = new EventSource("/decode");
   decodeSource.onopen = () => {
     decodeConnected = true;

src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/aprs.js

@@ -5,9 +5,7 @@ const aprsFilterInput = document.getElementById("aprs-filter");
 const aprsBarOverlay = document.getElementById("aprs-bar-overlay");
 const APRS_MAX_PACKETS = 100;
 let aprsFilterText = "";
-
-// Persistent packet history
-let aprsPacketHistory = loadSetting("aprsPackets", []);
+let aprsPacketHistory = [];
 
 function renderAprsInfo(pkt) {
   const bytes = Array.isArray(pkt.info_bytes) ? pkt.info_bytes : null;
@@ -133,6 +131,13 @@ window.clearAprsBar = function() {
   document.getElementById("aprs-clear-btn")?.click();
 };
 
+window.resetAprsHistoryView = function() {
+  aprsPacketsEl.innerHTML = "";
+  aprsPacketHistory = [];
+  updateAprsBar();
+  if (window.clearMapMarkersByType) window.clearMapMarkersByType("aprs");
+};
+
 function addAprsPacket(pkt) {
   const tag = pkt.crcOk ? "[APRS]" : "[APRS-CRC-FAIL]";
   console.log(tag, `${pkt.srcCall}>${pkt.destCall}${pkt.path ? "," + pkt.path : ""}: ${pkt.info}`, pkt);
@@ -141,10 +146,8 @@ function addAprsPacket(pkt) {
   pkt._ts = new Date().toLocaleTimeString([], { hour: "2-digit", minute: "2-digit", second: "2-digit" });
   pkt._tsMs = Date.now();
 
-  // Persist to history
   aprsPacketHistory.unshift(pkt);
   if (aprsPacketHistory.length > APRS_MAX_PACKETS) aprsPacketHistory.length = APRS_MAX_PACKETS;
-  saveSetting("aprsPackets", aprsPacketHistory);
 
   // Update overview bar (CRC-failed frames excluded)
   if (pkt.crcOk) updateAprsBar();
@@ -160,22 +163,13 @@ function addAprsPacket(pkt) {
 }
 
 document.getElementById("aprs-clear-btn").addEventListener("click", async () => {
-  aprsPacketsEl.innerHTML = "";
-  aprsPacketHistory = [];
-  saveSetting("aprsPackets", []);
-  updateAprsBar();
-  try { await postPath("/clear_aprs_decode"); } catch (e) { console.error("APRS clear failed", e); }
-});
-
-// Restore saved packets and map markers on page load
-for (let i = aprsPacketHistory.length - 1; i >= 0; i--) {
-  const pkt = aprsPacketHistory[i];
-  aprsPacketsEl.prepend(renderAprsRow(pkt));
-  if (pkt.lat != null && pkt.lon != null && window.aprsMapAddStation) {
-    window.aprsMapAddStation(pkt.srcCall, pkt.lat, pkt.lon, pkt.info, pkt.symbolTable, pkt.symbolCode, pkt);
+  try {
+    await postPath("/clear_aprs_decode");
+    window.resetAprsHistoryView();
+  } catch (e) {
+    console.error("APRS clear failed", e);
   }
-}
-updateAprsBar();
+});
 
 if (aprsFilterInput) {
   aprsFilterInput.addEventListener("input", () => {

src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/cw.js

@@ -48,9 +48,18 @@ if (cwToneInput) {
   });
 }
 
-document.getElementById("cw-clear-btn").addEventListener("click", async () => {
+window.resetCwHistoryView = function() {
   cwOutputEl.innerHTML = "";
-  try { await postPath("/clear_cw_decode"); } catch (e) { console.error("CW clear failed", e); }
+  cwLastAppendTime = 0;
+};
+
+document.getElementById("cw-clear-btn").addEventListener("click", async () => {
+  try {
+    await postPath("/clear_cw_decode");
+    window.resetCwHistoryView();
+  } catch (e) {
+    console.error("CW clear failed", e);
+  }
 });
 
 // --- Server-side CW decode handler ---

src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/ft8.js

@@ -150,6 +150,11 @@ window.updateFt8RfDisplay = function() {
   rows.forEach((row) => updateFt8RowRf(row));
 };
 
+window.resetFt8HistoryView = function() {
+  ft8MessagesEl.innerHTML = "";
+  if (window.clearMapMarkersByType) window.clearMapMarkersByType("ft8");
+};
+
 if (ft8FilterInput) {
   ft8FilterInput.addEventListener("input", () => {
     ft8FilterText = ft8FilterInput.value.trim().toUpperCase();
@@ -162,8 +167,12 @@ document.getElementById("ft8-decode-toggle-btn").addEventListener("click", async
 });
 
 document.getElementById("ft8-clear-btn").addEventListener("click", async () => {
-  ft8MessagesEl.innerHTML = "";
-  try { await postPath("/clear_ft8_decode"); } catch (e) { console.error("FT8 clear failed", e); }
+  try {
+    await postPath("/clear_ft8_decode");
+    window.resetFt8HistoryView();
+  } catch (e) {
+    console.error("FT8 clear failed", e);
+  }
 });
 
 // --- Server-side FT8 decode handler ---

src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/wspr.js

@@ -97,6 +97,11 @@ function applyWsprFilterToAll() {
   rows.forEach((row) => applyWsprFilterToRow(row));
 }
 
+window.resetWsprHistoryView = function() {
+  wsprMessagesEl.innerHTML = "";
+  if (window.clearMapMarkersByType) window.clearMapMarkersByType("wspr");
+};
+
 if (wsprFilterInput) {
   wsprFilterInput.addEventListener("input", () => {
     wsprFilterText = wsprFilterInput.value.trim().toUpperCase();
@@ -109,8 +114,12 @@ document.getElementById("wspr-decode-toggle-btn").addEventListener("click", asyn
 });
 
 document.getElementById("wspr-clear-btn").addEventListener("click", async () => {
-  wsprMessagesEl.innerHTML = "";
-  try { await postPath("/clear_wspr_decode"); } catch (e) { console.error("WSPR clear failed", e); }
+  try {
+    await postPath("/clear_wspr_decode");
+    window.resetWsprHistoryView();
+  } catch (e) {
+    console.error("WSPR clear failed", e);
+  }
 });
 
 window.onServerWspr = function(msg) {