102 lines
2.7 KiB
JavaScript
102 lines
2.7 KiB
JavaScript
// ===== BIT RENDER =====
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function renderBits(byte) {
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const bits = document.getElementById("bits");
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bits.innerHTML = "";
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byte = Number(byte || 0);
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for (let i = 7; i >= 0; i--) {
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const v = (byte >> i) & 1;
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const d = document.createElement("div");
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d.className = "bit" + (v ? " on" : "");
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d.textContent = v;
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bits.appendChild(d);
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}
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}
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// ===== PROGRESS BAR =====
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function setBar(id, value) {
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value = Math.max(0, Math.min(100, value));
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document.getElementById(id).style.width = value + "%";
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}
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// ===== SMOOTHING =====
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let lastValue = 0;
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function smoothBar(target) {
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const alpha = 0.2;
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lastValue = lastValue + alpha * (target - lastValue);
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return lastValue;
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}
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// ===== MEDIAN FILTER =====
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function median(values) {
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if (values.length === 0) return 0;
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const sorted = [...values].sort((a, b) => a - b);
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const mid = Math.floor(sorted.length / 2);
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return sorted.length % 2 !== 0
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? sorted[mid]
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: (sorted[mid - 1] + sorted[mid]) / 2;
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}
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// ===== MAIN LOOP =====
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async function update() {
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try {
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const r1 = await fetch("/api/health");
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const r2 = await fetch("/api/history");
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const h = await r1.json();
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const hist = await r2.json();
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// ===== STATUS =====
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document.getElementById("status").textContent = h.status || "неизвестно";
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const filled = h.stats?.filled ?? 0;
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const uptime = Math.round(h.uptime_sec || 0);
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document.getElementById("meta").textContent =
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"аптайм: " + uptime + "s | буфер: " + filled;
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// ===== LATEST =====
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const latest = Number(h.latest || 0);
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document.getElementById("latest").textContent = latest;
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renderBits(latest);
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// ===== HISTORY =====
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const arr = Array.isArray(hist.bytes) ? hist.bytes : [];
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document.getElementById("history").innerHTML =
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arr.map((b, i) =>
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"[" + i + "] " +
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(Number(b) & 0xFF).toString(2).padStart(8, "0") +
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" = значение: " + (Number(b) & 0xFF)
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).join("<br>");
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// ===== FILTER (последние 9 значений) =====
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const last = arr.slice(-9).map(v => Number(v) & 0xFF);
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const filtered = median(last);
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// ===== NORMALIZE =====
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const percent = (filtered / 255) * 100;
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// ===== SMOOTH =====
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const smooth = smoothBar(percent);
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// ===== ONLY CHANNEL 1 =====
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setBar("bar1", smooth);
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} catch (e) {
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console.error("UPDATE ERROR:", e);
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document.getElementById("status").textContent = "СЕРВЕР НЕДОСТУПЕН";
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}
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}
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// быстрее и плавнее
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setInterval(update, 500);
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update();
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