web UI added and refactoring done
This commit is contained in:
Ayzen
@@ -0,0 +1,298 @@
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"use strict";
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/* ------------------------------------------------------------------ *
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* Radar System web client.
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* Streams the live Qt plot as an image (latest-wins) + REST controls +
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* the processor live-settings panel, synced both ways with the desktop.
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* ------------------------------------------------------------------ */
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/* ---- DOM handles ------------------------------------------------- */
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const plotImg = document.getElementById("plot");
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const btnStart = document.getElementById("btn-start");
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const btnSingle = document.getElementById("btn-single");
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const btnStop = document.getElementById("btn-stop");
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const btnTmpRef = document.getElementById("btn-tmp-ref");
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const btnApply = document.getElementById("btn-apply");
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const btnResetHistory = document.getElementById("btn-reset-history");
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const settingsToggle = document.getElementById("settings-toggle");
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const sidePanel = document.querySelector(".side-panel");
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const settingsFields = document.getElementById("settings-fields");
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const settingsNote = document.getElementById("settings-note");
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const runningEl = document.getElementById("stat-running");
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const processorEl = document.getElementById("stat-processor");
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const ringEl = document.getElementById("stat-ring");
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const staleEl = document.getElementById("stat-stale");
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const toastEl = document.getElementById("toast");
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/* ---- state ------------------------------------------------------- */
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let pendingPng = null; // newest PNG (base64), shown on the next animation frame
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let lastFrameTs = 0; // performance.now() of the last received frame
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/* ---- helpers ----------------------------------------------------- */
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function toast(message, isError) {
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toastEl.textContent = message;
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toastEl.classList.toggle("error", !!isError);
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toastEl.classList.add("show");
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clearTimeout(toast._t);
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toast._t = setTimeout(() => toastEl.classList.remove("show"), 2600);
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}
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async function api(path, body) {
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const opts = { method: body === undefined ? "GET" : "POST" };
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if (body !== undefined) {
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opts.headers = { "Content-Type": "application/json" };
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opts.body = JSON.stringify(body);
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}
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const res = await fetch(path, opts);
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let data = null;
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try { data = await res.json(); } catch (_) { /* empty body */ }
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if (!res.ok) {
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const detail = (data && data.detail) || `HTTP ${res.status}`;
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throw new Error(detail);
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}
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return data;
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}
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/* ---- controls ---------------------------------------------------- */
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function bindControl(button, path, body) {
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button.addEventListener("click", async () => {
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button.disabled = true;
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try {
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await api(path, body);
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} catch (err) {
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toast(err.message, true);
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} finally {
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button.disabled = false;
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}
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});
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}
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bindControl(btnStart, "/api/start", {});
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bindControl(btnSingle, "/api/single_capture", {});
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bindControl(btnStop, "/api/stop", {});
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bindControl(btnTmpRef, "/api/tmp_reference", {});
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/* ---- settings panel --------------------------------------------- */
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settingsToggle.addEventListener("click", () => sidePanel.classList.toggle("collapsed"));
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// The form is built ENTIRELY from the schema the server derives from the Qt widgets
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// (field, group, kind, options, ranges, value, enabled). The web hardcodes nothing
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// and shows only the active mode's fields, so it always mirrors the desktop.
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const fieldInputs = {}; // field name -> { el, kind, dirty }
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let formSignature = ""; // field names currently in the form (detect mode/structure change)
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function makeFieldRow(entry) {
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const row = document.createElement("div");
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row.className = "field";
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const label = document.createElement("label");
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label.textContent = entry.name;
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label.htmlFor = "f_" + entry.name;
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row.appendChild(label);
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let el;
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if (entry.kind === "bool") {
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el = document.createElement("input");
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el.type = "checkbox";
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el.checked = !!entry.value;
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} else if (entry.kind === "select") {
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el = document.createElement("select");
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for (const opt of entry.options || []) {
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const o = document.createElement("option");
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o.value = opt;
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o.textContent = opt;
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el.appendChild(o);
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}
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el.value = String(entry.value);
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} else if (entry.kind === "int" || entry.kind === "float") {
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el = document.createElement("input");
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el.type = "number";
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if (entry.min != null) el.min = entry.min;
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if (entry.max != null) el.max = entry.max;
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el.step = entry.kind === "float" ? (entry.step || "any") : (entry.step || 1);
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el.value = entry.value;
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} else {
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el = document.createElement("input");
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el.type = "text";
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el.value = entry.value == null ? "" : String(entry.value);
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}
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el.id = "f_" + entry.name;
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if (entry.enabled === false) el.disabled = true;
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// Mark dirty while edited so a live push never overwrites a half-entered value.
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const markDirty = () => { fieldInputs[entry.name].dirty = true; };
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el.addEventListener("input", markDirty);
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el.addEventListener("change", markDirty);
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// Switching mode changes which settings are shown — apply it immediately.
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if (entry.name === "processor_mode") {
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el.addEventListener("change", () => applyOne("processor_mode", el.value));
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}
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row.appendChild(el);
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fieldInputs[entry.name] = { el, kind: entry.kind, dirty: false };
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return row;
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}
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function buildSettingsForm(schema) {
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settingsFields.innerHTML = "";
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for (const key in fieldInputs) delete fieldInputs[key];
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let lastGroup = null;
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for (const entry of schema) {
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if (entry.group !== lastGroup) {
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lastGroup = entry.group;
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const heading = document.createElement("div");
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heading.className = "group-title";
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heading.textContent = entry.group;
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settingsFields.appendChild(heading);
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}
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settingsFields.appendChild(makeFieldRow(entry));
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}
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formSignature = schema.map((e) => e.name).join(",");
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}
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function collectFields() {
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const out = {};
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for (const key in fieldInputs) {
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const { el, kind } = fieldInputs[key];
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if (kind === "bool") out[key] = el.checked;
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else if (kind === "int") out[key] = parseInt(el.value, 10);
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else if (kind === "float") out[key] = parseFloat(el.value);
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else out[key] = el.value; // select + text (positions are sent as CSV text)
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}
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return out;
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}
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function setFieldValue(input, value) {
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const { el, kind } = input;
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if (kind === "bool") el.checked = !!value;
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else if (kind === "select") el.value = String(value);
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else el.value = value == null ? "" : value;
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}
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function clearDirty() {
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for (const key in fieldInputs) fieldInputs[key].dirty = false;
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}
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async function applyOne(field, value) {
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try {
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await api("/api/live_settings", { [field]: value });
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} catch (err) {
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toast(err.message, true);
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}
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}
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// Update the form from a schema pushed by the desktop. Rebuild if the field set
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// changed (e.g. the mode switched); otherwise update values in place without
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// clobbering a field the operator is editing here.
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function applySettings(schema) {
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if (schema.map((e) => e.name).join(",") !== formSignature) {
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buildSettingsForm(schema);
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return;
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}
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for (const entry of schema) {
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const input = fieldInputs[entry.name];
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if (!input || input.el === document.activeElement || input.dirty) continue;
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setFieldValue(input, entry.value);
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if (entry.enabled !== undefined) input.el.disabled = entry.enabled === false;
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}
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}
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btnApply.addEventListener("click", async () => {
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btnApply.disabled = true;
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try {
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await api("/api/live_settings", collectFields());
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clearDirty(); // applied; let live pushes update the form again
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settingsNote.textContent = "Applied.";
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} catch (err) {
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settingsNote.textContent = err.message;
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toast(err.message, true);
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} finally {
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btnApply.disabled = false;
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}
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});
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btnResetHistory.addEventListener("click", async () => {
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btnResetHistory.disabled = true;
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try {
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await api("/api/live_settings", { history_command: "clear_all" });
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settingsNote.textContent = "History reset requested.";
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} catch (err) {
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settingsNote.textContent = err.message;
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toast(err.message, true);
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} finally {
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btnResetHistory.disabled = false;
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}
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});
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async function loadSettings() {
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try {
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const cfg = await api("/api/live_settings");
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buildSettingsForm(cfg);
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} catch (err) {
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settingsNote.textContent = "Could not load settings: " + err.message;
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}
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}
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/* ---- status ------------------------------------------------------ */
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function setStat(el, label, value, cls) {
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el.className = "stat" + (cls ? " " + cls : "");
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el.innerHTML = label + ": <b></b>";
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el.querySelector("b").textContent = value;
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}
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function applyStatus(s) {
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if ("running" in s)
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setStat(runningEl, "running", s.running ? "yes" : "no", s.running ? "ok" : "off");
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if ("processor_running" in s)
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setStat(processorEl, "processor", s.processor_running ? "yes" : "no",
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s.processor_running ? "ok" : "off");
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if ("ring_name" in s) setStat(ringEl, "ring", s.ring_name || "—",
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s.ring_name ? "" : "off");
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}
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/* ---- frame rendering (latest-wins; the frame IS the Qt plot image) - */
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function renderLoop() {
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if (pendingPng !== null) {
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// Show exactly what the desktop draws; the browser scales it to fit (CSS).
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plotImg.src = "data:image/png;base64," + pendingPng;
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pendingPng = null;
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}
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// Stale indicator (>2s without a frame).
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const stale = performance.now() - lastFrameTs > 2000;
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staleEl.classList.toggle("stale", stale && lastFrameTs > 0);
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staleEl.textContent = lastFrameTs === 0 ? "no data" : stale ? "stale" : "live";
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requestAnimationFrame(renderLoop);
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}
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/* ---- WebSocket --------------------------------------------------- */
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function connectWs() {
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const proto = location.protocol === "https:" ? "wss:" : "ws:";
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const ws = new WebSocket(`${proto}//${location.host}/ws`);
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ws.onmessage = (ev) => {
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let msg;
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try { msg = JSON.parse(ev.data); } catch (_) { return; }
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if (msg.type === "frame") {
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pendingPng = msg.png_b64; // latest-wins; rAF swaps the image
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lastFrameTs = performance.now();
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} else if (msg.type === "status") {
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applyStatus(msg);
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} else if (msg.type === "settings") {
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applySettings(msg.schema); // live desktop schema mirrors into the form
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}
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};
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ws.onclose = () => setTimeout(connectWs, 1500);
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ws.onerror = () => ws.close();
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}
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/* ---- boot -------------------------------------------------------- */
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async function init() {
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requestAnimationFrame(renderLoop);
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try {
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applyStatus(await api("/api/status"));
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} catch (err) {
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settingsNote.textContent = "Status unavailable: " + err.message;
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}
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await loadSettings();
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connectWs();
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}
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init();
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