Signed-off-by: Stan Grams <sjg@haxx.space>
This commit is contained in:
@@ -0,0 +1,565 @@
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// SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
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//
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// SPDX-License-Identifier: GPL-2.0-or-later
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// --- Virtual Channels Plugin ---
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//
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// Handles the `session` and `channels` SSE events emitted by /events and
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// provides the channel picker UI (SDR-only, shown when filter_controls is set).
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let vchanSessionId = null;
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let vchanRigId = null;
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let vchanChannels = [];
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let vchanActiveId = null;
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let schedulerReleaseState = null;
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let schedulerReleasePollTimer = null;
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function vchanFmtFreq(hz) {
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if (!Number.isFinite(hz) || hz <= 0) return "--";
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if (hz >= 1e9) return (hz / 1e9).toFixed(4).replace(/\.?0+$/, "") + "\u202fGHz";
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if (hz >= 1e6) return (hz / 1e6).toFixed(4).replace(/\.?0+$/, "") + "\u202fMHz";
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if (hz >= 1e3) return (hz / 1e3).toFixed(1).replace(/\.?0+$/, "") + "\u202fkHz";
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return hz + "\u202fHz";
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}
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function schedulerReleaseSummaryText(state) {
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if (!state) return "Scheduler is controlling the rig.";
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const connected = Number(state.connected_sessions) || 0;
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const released = Number(state.released_sessions) || 0;
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if (connected === 0) return "Scheduler can control the rig.";
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if (state.all_released) {
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return connected === 1
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? "Scheduler is controlling the rig."
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: `Scheduler is controlling the rig for all ${connected} users.`;
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}
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if (!state.current_session_released) {
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const othersReleased = Math.max(released, 0);
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return othersReleased > 0
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? `You are holding control. ${othersReleased} other user${othersReleased === 1 ? "" : "s"} already released it.`
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: "You are holding control. Release it to return control to the scheduler.";
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}
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const blocking = Math.max(connected - released, 0);
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return blocking > 0
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? `Scheduler is waiting for ${blocking} user${blocking === 1 ? "" : "s"} to stop manual tuning.`
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: "Scheduler can control the rig.";
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}
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function vchanRenderSchedulerRelease() {
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const btn = document.getElementById("scheduler-release-btn");
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const status = document.getElementById("scheduler-release-status");
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if (!btn || !status) return;
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const currentReleased = !!(schedulerReleaseState && schedulerReleaseState.current_session_released);
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btn.disabled = !vchanSessionId || currentReleased;
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btn.classList.toggle("active", !currentReleased);
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btn.textContent = "Release to Scheduler";
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status.textContent = schedulerReleaseSummaryText(schedulerReleaseState);
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}
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async function vchanPollSchedulerRelease() {
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if (!vchanSessionId) {
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schedulerReleaseState = null;
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vchanRenderSchedulerRelease();
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return;
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}
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try {
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const resp = await fetch(`/scheduler-control?session_id=${encodeURIComponent(vchanSessionId)}`);
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if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
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schedulerReleaseState = await resp.json();
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vchanRenderSchedulerRelease();
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} catch (e) {
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console.error("scheduler release status failed", e);
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}
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}
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function vchanStartSchedulerReleasePolling() {
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if (schedulerReleasePollTimer) {
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clearInterval(schedulerReleasePollTimer);
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}
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schedulerReleasePollTimer = setInterval(vchanPollSchedulerRelease, 10000);
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}
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async function vchanToggleSchedulerRelease() {
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if (!vchanSessionId) return;
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const rigId = vchanRigId || (typeof lastActiveRigId !== "undefined" ? lastActiveRigId : null);
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try {
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const resp = await fetch("/scheduler-control", {
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method: "PUT",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({ session_id: vchanSessionId, released: true, remote: rigId }),
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});
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if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
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schedulerReleaseState = await resp.json();
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vchanRenderSchedulerRelease();
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} catch (e) {
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console.error("scheduler release toggle failed", e);
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}
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}
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async function vchanTakeSchedulerControl() {
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if (!vchanSessionId) return;
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if (schedulerReleaseState && !schedulerReleaseState.current_session_released) return;
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try {
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const resp = await fetch("/scheduler-control", {
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method: "PUT",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({ session_id: vchanSessionId, released: false }),
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});
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if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
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schedulerReleaseState = await resp.json();
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vchanRenderSchedulerRelease();
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} catch (e) {
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console.error("scheduler control takeover failed", e);
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}
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}
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window.vchanTakeSchedulerControl = vchanTakeSchedulerControl;
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// Called by app.js when the SSE `session` event arrives.
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function vchanHandleSession(data) {
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try {
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const d = JSON.parse(data);
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vchanSessionId = d.session_id || null;
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vchanPollSchedulerRelease();
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} catch (e) {
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console.warn("vchan: bad session event", e);
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}
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}
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// Called by app.js when the SSE `channels` event arrives.
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function vchanHandleChannels(data) {
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try {
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const d = JSON.parse(data);
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vchanRigId = d.remote || null;
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vchanChannels = d.channels || [];
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const ids = new Set(vchanChannels.map(c => c.id));
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if (!vchanActiveId && vchanChannels.length > 0 && vchanSessionId) {
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// First channels event for this session — auto-subscribe to channel 0
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// so we join the same tuned channel as other users on this rig.
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// Use a direct subscribe (no scheduler control takeover) to avoid
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// side-effects on initial connect.
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vchanAutoJoinPrimary(vchanChannels[0].id);
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} else if (vchanActiveId && !ids.has(vchanActiveId)) {
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// Active channel was evicted — fall back to channel 0 and reconnect audio.
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vchanActiveId = vchanChannels.length > 0 ? vchanChannels[0].id : null;
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vchanReconnectAudio();
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}
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vchanRender();
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vchanRenderSchedulerRelease();
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if (typeof renderRdsOverlays === "function") renderRdsOverlays();
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} catch (e) {
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console.warn("vchan: bad channels event", e);
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}
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}
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function vchanRender() {
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const picker = document.getElementById("vchan-picker");
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if (!picker) return;
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picker.innerHTML = "";
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vchanChannels.forEach(ch => {
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const btn = document.createElement("button");
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btn.type = "button";
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btn.title = `Ch ${ch.index}: ${vchanFmtFreq(ch.freq_hz)} ${ch.mode} · ${ch.subscribers} subscriber${ch.subscribers !== 1 ? "s" : ""}`;
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if (ch.id === vchanActiveId) btn.classList.add("active");
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const label = document.createElement("span");
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label.className = "vchan-label";
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label.textContent = `${ch.index}: ${vchanFmtFreq(ch.freq_hz)} ${ch.mode}`;
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btn.appendChild(label);
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if (!ch.permanent) {
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const del = document.createElement("span");
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del.className = "vchan-del";
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del.textContent = "\u00d7";
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del.title = "Delete channel";
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del.addEventListener("click", e => {
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e.stopPropagation();
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vchanDelete(ch.id);
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});
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btn.appendChild(del);
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}
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btn.addEventListener("click", () => {
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if (ch.id !== vchanActiveId) vchanSubscribe(ch.id);
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});
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picker.appendChild(btn);
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});
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// "+" button — allocate a new channel at the current VFO frequency.
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const addBtn = document.createElement("button");
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addBtn.type = "button";
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addBtn.className = "vchan-add";
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addBtn.textContent = "+";
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addBtn.title = "Allocate new virtual channel at current frequency";
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addBtn.addEventListener("click", vchanAllocate);
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picker.appendChild(addBtn);
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vchanSyncAccentUI();
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if (typeof updateDocumentTitle === "function" && typeof activeChannelRds === "function") {
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updateDocumentTitle(activeChannelRds());
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}
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vchanRenderSchedulerRelease();
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}
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async function vchanAllocate() {
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if (!vchanSessionId || !vchanRigId) return;
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// Use the last known rig frequency and mode as the starting point.
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const freqHz = (typeof lastFreqHz === "number" && lastFreqHz > 0)
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? lastFreqHz
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: 0;
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const modeEl = document.getElementById("mode");
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const mode = modeEl ? (modeEl.value || "USB") : "USB";
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try {
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const resp = await fetch(`/channels/${encodeURIComponent(vchanRigId)}`, {
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({ session_id: vchanSessionId, freq_hz: freqHz, mode }),
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});
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if (!resp.ok) {
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const msg = await resp.text().catch(() => String(resp.status));
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console.warn("vchan: allocate failed —", msg);
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return;
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}
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const ch = await resp.json();
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vchanActiveId = ch.id;
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// The SSE `channels` event will trigger vchanRender(); optimistically
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// mark active so the picker feels responsive even before the event arrives.
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vchanRender();
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vchanReconnectAudio();
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} catch (e) {
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console.error("vchan: allocate error", e);
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}
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}
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async function vchanDelete(channelId) {
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if (!vchanRigId) return;
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try {
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const resp = await fetch(
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`/channels/${encodeURIComponent(vchanRigId)}/${encodeURIComponent(channelId)}`,
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{ method: "DELETE" }
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);
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if (!resp.ok) {
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console.warn("vchan: delete failed", resp.status);
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}
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// Channel list updates via SSE `channels` event.
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} catch (e) {
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console.error("vchan: delete error", e);
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}
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}
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// Lightweight auto-join for initial connect: registers the session on
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// channel 0 without taking scheduler control or reconnecting audio
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// (audio isn't started yet at this point).
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async function vchanAutoJoinPrimary(channelId) {
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if (!vchanSessionId || !vchanRigId) return;
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try {
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const resp = await fetch(
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`/channels/${encodeURIComponent(vchanRigId)}/${encodeURIComponent(channelId)}/subscribe`,
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{
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({ session_id: vchanSessionId }),
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}
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);
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if (!resp.ok) {
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console.warn("vchan: auto-join primary failed", resp.status);
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return;
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}
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vchanActiveId = channelId;
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vchanRender();
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} catch (e) {
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console.error("vchan: auto-join error", e);
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}
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}
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async function vchanSubscribe(channelId) {
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if (!vchanSessionId || !vchanRigId) return;
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try {
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await vchanTakeSchedulerControl();
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const resp = await fetch(
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`/channels/${encodeURIComponent(vchanRigId)}/${encodeURIComponent(channelId)}/subscribe`,
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{
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method: "POST",
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headers: { "Content-Type": "application/json" },
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body: JSON.stringify({ session_id: vchanSessionId }),
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}
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);
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if (!resp.ok) {
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console.warn("vchan: subscribe failed", resp.status);
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return;
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}
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vchanActiveId = channelId;
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vchanRender();
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vchanSyncModeDisplay();
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vchanReconnectAudio();
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} catch (e) {
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console.error("vchan: subscribe error", e);
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}
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}
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// Reconnect the audio WebSocket to the appropriate endpoint:
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// - virtual channel: /audio?channel_id=<uuid>
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// - primary channel: /audio (no param)
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// Always updates _audioChannelOverride so that starting audio later
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// connects to the correct channel. Only reconnects if RX audio is active.
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function vchanReconnectAudio() {
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// Always update the override so startRxAudio picks up the right URL,
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// even when audio isn't currently running.
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const ch = vchanIsOnVirtual() ? vchanActiveChannel() : null;
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if (typeof _audioChannelOverride !== "undefined") {
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_audioChannelOverride = ch ? ch.id : null;
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}
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if (typeof rxActive === "undefined" || !rxActive) return;
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if (typeof stopRxAudio === "function") stopRxAudio();
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// Delay so the server has time to set up the per-channel encoder.
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// The server-side audio_ws handler also polls for up to 2 s, so this
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// just needs to be long enough for the WS upgrade to reach the server.
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setTimeout(() => {
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if (typeof startRxAudio === "function") startRxAudio();
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}, 300);
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}
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// Called by app.js from applyCapabilities().
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// Shows the channel picker only for SDR rigs.
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function vchanApplyCapabilities(caps) {
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const picker = document.getElementById("vchan-picker");
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if (!picker) return;
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picker.style.display = (caps && caps.filter_controls) ? "" : "none";
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vchanRenderSchedulerRelease();
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}
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// ---------------------------------------------------------------------------
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// Freq / mode interception + UI accent
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// ---------------------------------------------------------------------------
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// Returns true when the active channel is a non-primary (virtual) channel.
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function vchanIsOnVirtual() {
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if (!vchanActiveId || vchanChannels.length === 0) return false;
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return vchanActiveId !== vchanChannels[0].id;
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}
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function vchanActiveChannel() {
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return vchanChannels.find(c => c.id === vchanActiveId) || null;
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}
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// Update the main freq input to show the virtual channel's frequency.
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function vchanUpdateFreqDisplay() {
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const ch = vchanActiveChannel();
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if (!ch) return;
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const el = document.getElementById("freq");
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if (!el) return;
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if (typeof formatFreqForStep === "function" && typeof jogUnit !== "undefined") {
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el.value = formatFreqForStep(ch.freq_hz, jogUnit);
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} else {
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el.value = (ch.freq_hz / 1e6).toFixed(6).replace(/\.?0+$/, "");
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}
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}
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// Sync the mode picker to the active virtual channel's mode.
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// Called whenever the active channel changes or the channel list is refreshed.
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function vchanSyncModeDisplay() {
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const modeEl = document.getElementById("mode");
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if (!modeEl) return;
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if (vchanIsOnVirtual()) {
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const ch = vchanActiveChannel();
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if (ch && ch.mode) modeEl.value = ch.mode.toUpperCase();
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}
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// When on primary channel, app.js rig-state updates handle the picker.
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const modeUpper = (modeEl.value || "").toUpperCase();
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if (typeof lastModeName !== "undefined") {
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if (modeUpper === "WFM" && lastModeName !== "WFM") {
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if (typeof setJogDivisor === "function") setJogDivisor(10);
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if (typeof resetRdsDisplay === "function") resetRdsDisplay();
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} else if (modeUpper !== "WFM" && lastModeName === "WFM") {
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if (typeof resetRdsDisplay === "function") resetRdsDisplay();
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}
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lastModeName = modeUpper;
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}
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if (typeof updateWfmControls === "function") updateWfmControls();
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if (typeof updateSdrSquelchControlVisibility === "function") {
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updateSdrSquelchControlVisibility();
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}
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if (typeof refreshRdsUi === "function") {
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refreshRdsUi();
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} else if (typeof positionRdsPsOverlay === "function") {
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positionRdsPsOverlay();
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}
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}
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// Sync the BW input to the active virtual channel's bandwidth.
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function vchanSyncBwDisplay() {
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if (!vchanIsOnVirtual()) return;
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const ch = vchanActiveChannel();
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if (!ch) return;
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const bwEl = document.getElementById("spectrum-bw-input");
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if (!bwEl) return;
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// bandwidth_hz == 0 means mode-default; derive it from the channel mode.
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let bwHz = ch.bandwidth_hz || 0;
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if (bwHz === 0 && typeof mwDefaultsForMode === "function") {
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bwHz = mwDefaultsForMode(ch.mode)[0] || 0;
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}
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if (bwHz > 0) {
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bwEl.value = (bwHz / 1000).toFixed(3).replace(/\.?0+$/, "");
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if (typeof currentBandwidthHz !== "undefined") {
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currentBandwidthHz = bwHz;
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window.currentBandwidthHz = bwHz;
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} else {
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window.currentBandwidthHz = bwHz;
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}
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}
|
||||
}
|
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// Add / remove the vchan accent class from the freq and BW inputs.
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function vchanSyncAccentUI() {
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const onVirtual = vchanIsOnVirtual();
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const freqEl = document.getElementById("freq");
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const bwEl = document.getElementById("spectrum-bw-input");
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if (freqEl) freqEl.classList.toggle("vchan-ch-active", onVirtual);
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if (bwEl) bwEl.classList.toggle("vchan-ch-active", onVirtual);
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if (onVirtual) {
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vchanUpdateFreqDisplay();
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vchanSyncModeDisplay();
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vchanSyncBwDisplay();
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} else if (typeof _origRefreshFreqDisplay === "function") {
|
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_origRefreshFreqDisplay();
|
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}
|
||||
if (typeof updateDocumentTitle === "function" && typeof activeChannelRds === "function") {
|
||||
updateDocumentTitle(activeChannelRds());
|
||||
}
|
||||
}
|
||||
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||||
// Saved reference to the original refreshFreqDisplay from app.js.
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let _origRefreshFreqDisplay = null;
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function vchanSetChannelFreq(freqHz) {
|
||||
if (!vchanRigId || !vchanActiveId) return;
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||||
// Validate against current SDR capture window.
|
||||
if (typeof lastSpectrumData !== "undefined" && lastSpectrumData &&
|
||||
lastSpectrumData.sample_rate > 0) {
|
||||
const halfSpan = Number(lastSpectrumData.sample_rate) / 2;
|
||||
const center = Number(lastSpectrumData.center_hz);
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||||
if (Math.abs(freqHz - center) > halfSpan) {
|
||||
if (typeof showHint === "function") {
|
||||
showHint(
|
||||
`Out of SDR bandwidth (center ${(center / 1e6).toFixed(3)} MHz ±${(halfSpan / 1e3).toFixed(0)} kHz)`,
|
||||
3000
|
||||
);
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
// Fire-and-forget: scheduler control + channel freq PUT run in background.
|
||||
vchanTakeSchedulerControl();
|
||||
fetch(
|
||||
`/channels/${encodeURIComponent(vchanRigId)}/${encodeURIComponent(vchanActiveId)}/freq`,
|
||||
{
|
||||
method: "PUT",
|
||||
headers: { "Content-Type": "application/json" },
|
||||
body: JSON.stringify({ freq_hz: Math.round(freqHz) }),
|
||||
}
|
||||
).catch(e => console.error("vchan: set freq error", e));
|
||||
}
|
||||
|
||||
async function vchanSetChannelBandwidth(bwHz) {
|
||||
if (!vchanRigId || !vchanActiveId) return;
|
||||
try {
|
||||
await vchanTakeSchedulerControl();
|
||||
const resp = await fetch(
|
||||
`/channels/${encodeURIComponent(vchanRigId)}/${encodeURIComponent(vchanActiveId)}/bw`,
|
||||
{
|
||||
method: "PUT",
|
||||
headers: { "Content-Type": "application/json" },
|
||||
body: JSON.stringify({ bandwidth_hz: Math.round(bwHz) }),
|
||||
}
|
||||
);
|
||||
if (!resp.ok) console.warn("vchan: set bw failed", resp.status);
|
||||
} catch (e) {
|
||||
console.error("vchan: set bw error", e);
|
||||
}
|
||||
}
|
||||
|
||||
async function vchanSetChannelMode(mode) {
|
||||
if (!vchanRigId || !vchanActiveId) return;
|
||||
try {
|
||||
await vchanTakeSchedulerControl();
|
||||
const resp = await fetch(
|
||||
`/channels/${encodeURIComponent(vchanRigId)}/${encodeURIComponent(vchanActiveId)}/mode`,
|
||||
{
|
||||
method: "PUT",
|
||||
headers: { "Content-Type": "application/json" },
|
||||
body: JSON.stringify({ mode }),
|
||||
}
|
||||
);
|
||||
if (!resp.ok) console.warn("vchan: set mode failed", resp.status);
|
||||
} catch (e) {
|
||||
console.error("vchan: set mode error", e);
|
||||
}
|
||||
}
|
||||
|
||||
// Called by app.js (applyModeFromPicker) and bookmarks.js (bmApply) before
|
||||
// sending /set_mode to the server. Returns true if the change was handled
|
||||
// by the virtual channel (caller should skip the server request).
|
||||
window.vchanInterceptMode = async function(mode) {
|
||||
if (!vchanIsOnVirtual()) return false;
|
||||
await vchanSetChannelMode(mode);
|
||||
return true;
|
||||
};
|
||||
|
||||
// Called by app.js bandwidth setters before sending /set_bandwidth to the
|
||||
// server. Returns true if the change was handled by the virtual channel.
|
||||
window.vchanInterceptBandwidth = async function(bwHz) {
|
||||
if (!vchanIsOnVirtual()) return false;
|
||||
await vchanSetChannelBandwidth(bwHz);
|
||||
return true;
|
||||
};
|
||||
|
||||
// Wrap setRigFrequency (defined in app.js, loaded before this file) so that
|
||||
// frequency changes are redirected to the active virtual channel instead of
|
||||
// the server when on a non-primary channel.
|
||||
(function() {
|
||||
const _orig = window.setRigFrequency;
|
||||
window.setRigFrequency = function(freqHz) {
|
||||
if (vchanIsOnVirtual()) {
|
||||
// Optimistic local update first, then fire-and-forget channel API.
|
||||
if (typeof applyLocalTunedFrequency === "function") {
|
||||
if (typeof _freqOptimisticSeq !== "undefined") {
|
||||
++_freqOptimisticSeq;
|
||||
_freqOptimisticHz = Math.round(freqHz);
|
||||
}
|
||||
applyLocalTunedFrequency(Math.round(freqHz));
|
||||
}
|
||||
vchanSetChannelFreq(freqHz);
|
||||
return;
|
||||
}
|
||||
// Scheduler control is fire-and-forget — don't block the freq change.
|
||||
vchanTakeSchedulerControl();
|
||||
if (typeof _orig === "function") _orig(freqHz);
|
||||
};
|
||||
})();
|
||||
|
||||
(function initSchedulerReleaseControl() {
|
||||
const btn = document.getElementById("scheduler-release-btn");
|
||||
if (btn) {
|
||||
btn.addEventListener("click", () => {
|
||||
vchanToggleSchedulerRelease();
|
||||
});
|
||||
}
|
||||
vchanStartSchedulerReleasePolling();
|
||||
vchanRenderSchedulerRelease();
|
||||
})();
|
||||
|
||||
// Wrap refreshFreqDisplay so the main freq field stays in sync with the
|
||||
// active virtual channel's frequency (SSE rig-state updates would otherwise
|
||||
// constantly overwrite it with channel 0's freq).
|
||||
(function() {
|
||||
_origRefreshFreqDisplay = window.refreshFreqDisplay;
|
||||
window.refreshFreqDisplay = function() {
|
||||
if (vchanIsOnVirtual()) {
|
||||
vchanUpdateFreqDisplay();
|
||||
return;
|
||||
}
|
||||
if (typeof _origRefreshFreqDisplay === "function") _origRefreshFreqDisplay();
|
||||
};
|
||||
})();
|
||||
Reference in New Issue
Block a user