Init

2026-07-16 08:31:52 +08:00
commit 8590fafac1
34 changed files with 2611 additions and 0 deletions
@@ -0,0 +1,325 @@
+const APP_VERSION = "1.0.0";
+const hud = document.querySelector("#hud");
+const wall = document.querySelector("#wall");
+const canvas = document.querySelector("#motionCanvas");
+const ctx = canvas.getContext("2d", { alpha: true });
+const clock = document.querySelector("#clock");
+const version = document.querySelector("#version");
+const sceneTitle = document.querySelector("#sceneTitle");
+const tileId = location.pathname.startsWith("/output/") ? location.pathname.split("/").pop() : "left";
+
+const sceneNames = {
+  overview: "LED 大屏投放平台",
+  energy: "能源驾驶舱",
+  security: "安防态势",
+};
+
+let ws = null;
+let tile = null;
+let state = null;
+let paused = false;
+let pageIndex = 0;
+let clockOffsetMs = 0;
+let bestRttMs = Number.POSITIVE_INFINITY;
+let pendingCommands = new Map();
+let frameCount = 0;
+let droppedFrames = 0;
+let lastFrameAt = performance.now();
+let lastFpsAt = performance.now();
+let fps = 0;
+let frameTimeMs = 0;
+let nodeId = sessionStorage.getItem("led-platform-node-id");
+
+if (!nodeId) {
+  const randomId = crypto.randomUUID ? crypto.randomUUID() : Math.random().toString(16).slice(2);
+  nodeId = `${tileId}-${randomId}`;
+  sessionStorage.setItem("led-platform-node-id", nodeId);
+}
+
+function clientNowMs() {
+  return Date.now();
+}
+
+function serverNowMs() {
+  return clientNowMs() + clockOffsetMs;
+}
+
+async function bootstrap() {
+  const res = await fetch(`/api/bootstrap/${tileId}`);
+  const data = await res.json();
+  tile = data.tile;
+  applyState(data.state);
+  buildStaticContent();
+  layout();
+  connectWs();
+  requestAnimationFrame(renderLoop);
+}
+
+function layout() {
+  if (!tile) return;
+  const scale = Math.min(window.innerWidth / tile.width, window.innerHeight / tile.height);
+  document.documentElement.style.setProperty("--wall-width", `${tile.wall_width}px`);
+  document.documentElement.style.setProperty("--wall-height", `${tile.wall_height}px`);
+  document.documentElement.style.setProperty("--scale", `${scale}`);
+  document.documentElement.style.setProperty("--offset-x", `${-tile.x * scale}px`);
+  document.documentElement.style.setProperty("--offset-y", `${-tile.y * scale}px`);
+  canvas.width = tile.wall_width;
+  canvas.height = tile.wall_height;
+  updateHud();
+}
+
+function buildStaticContent() {
+  document.querySelector("#overviewKpis").innerHTML = [
+    ["渲染模式", "Local GPU"],
+    ["同步方式", "Timeline"],
+    ["逻辑宽度", "14,880"],
+    ["逻辑高度", "3,510"],
+    ["左/右分区", "7,440"],
+    ["目标帧率", "60 FPS"],
+  ].map(([label, value]) => `<article class="kpi"><span>${label}</span><strong>${value}</strong></article>`).join("");
+
+  const bars = document.querySelector("#overviewBars");
+  bars.innerHTML = "";
+  for (let i = 0; i < 32; i += 1) {
+    const bar = document.createElement("div");
+    bar.className = "bar";
+    bar.style.height = `${180 + ((i * 137) % 760)}px`;
+    bars.append(bar);
+  }
+
+  document.querySelector("#cameraGrid").innerHTML = Array.from({ length: 8 }, (_, index) => {
+    const id = String(index + 1).padStart(2, "0");
+    return `<article class="camera"><strong>CAM-${id}</strong><span>在线 | 1080P | 低延迟</span></article>`;
+  }).join("");
+
+  document.querySelector("#alertRail").innerHTML = [
+    "北侧通道人员聚集",
+    "机房门禁异常",
+    "消防通道占用",
+    "视频质量波动",
+  ].map((item) => `<article class="alert">${item}</article>`).join("");
+}
+
+function applyState(nextState) {
+  state = nextState;
+  version.textContent = `v${state.version}`;
+  setScene(state.active_view);
+}
+
+function setScene(view) {
+  const normalized = view || "overview";
+  document.querySelectorAll(".scene").forEach((scene) => {
+    scene.classList.toggle("active", scene.dataset.view === normalized);
+  });
+  sceneTitle.textContent = sceneNames[normalized] || sceneNames.overview;
+  pulse();
+}
+
+function scheduleAt(applyAtMs, callback) {
+  const leadTimeMs = applyAtMs - serverNowMs();
+  const late = leadTimeMs < 80;
+  setTimeout(() => callback(late), Math.max(0, leadTimeMs));
+}
+
+function prepareScene(message) {
+  pendingCommands.set(message.command_id, message.payload);
+  sendAck(message, "prepared");
+}
+
+function commitScene(message) {
+  const payload = pendingCommands.get(message.command_id) || message.payload;
+  scheduleAt(payload.apply_at_ms, (late) => {
+    applyState(payload.state);
+    pendingCommands.delete(message.command_id);
+    sendAck(message, late ? "late" : "committed");
+  });
+}
+
+function runComponentAction(message) {
+  const { action, args, apply_at_ms: applyAtMs } = message.payload;
+  scheduleAt(applyAtMs, (late) => {
+    applyAction(action, args || {});
+    sendAck(message, late ? "late" : "action_committed");
+  });
+}
+
+function applyAction(action, args) {
+  if (action === "page.next") {
+    pageIndex += 1;
+    rotateValues();
+  } else if (action === "page.prev") {
+    pageIndex = Math.max(0, pageIndex - 1);
+    rotateValues();
+  } else if (action === "energy.mode") {
+    document.querySelector("#modeValue").textContent = args.mode || "削峰";
+  } else if (action === "security.alert") {
+    const rail = document.querySelector("#alertRail");
+    const alert = document.createElement("article");
+    alert.className = "alert pulse";
+    alert.textContent = args.text || "新增联动告警";
+    rail.prepend(alert);
+    while (rail.children.length > 5) rail.lastElementChild.remove();
+  } else if (action === "timeline.pause") {
+    paused = true;
+  } else if (action === "timeline.resume") {
+    paused = false;
+  }
+  pulse();
+}
+
+function rotateValues() {
+  const values = [
+    ["8.42 MW", "+3.8%", "均衡"],
+    ["7.91 MW", "-1.2%", "削峰"],
+    ["9.08 MW", "+6.1%", "保供"],
+  ][pageIndex % 3];
+  document.querySelector("#powerValue").textContent = values[0];
+  document.querySelector("#trendValue").textContent = values[1];
+  document.querySelector("#modeValue").textContent = values[2];
+}
+
+function timelineMs() {
+  if (!state) return 0;
+  return Math.max(0, serverNowMs() - state.scene_started_at_ms);
+}
+
+function renderLoop(now) {
+  frameTimeMs = now - lastFrameAt;
+  if (frameTimeMs > 40) droppedFrames += 1;
+  frameCount += 1;
+  if (now - lastFpsAt >= 1000) {
+    fps = frameCount * 1000 / (now - lastFpsAt);
+    frameCount = 0;
+    lastFpsAt = now;
+  }
+  lastFrameAt = now;
+
+  drawMotion(paused ? 0 : timelineMs());
+  updateAnimatedBars(paused ? 0 : timelineMs());
+  updateHud();
+  requestAnimationFrame(renderLoop);
+}
+
+function drawMotion(t) {
+  ctx.clearRect(0, 0, canvas.width, canvas.height);
+  ctx.globalAlpha = 0.72;
+  for (let i = 0; i < 24; i += 1) {
+    const phase = (t / 1000) + i * 0.42;
+    const x = (Math.sin(phase * 0.42) * 0.5 + 0.5) * canvas.width;
+    const y = (Math.cos(phase * 0.36) * 0.5 + 0.5) * canvas.height;
+    const r = 80 + (i % 5) * 28;
+    const grad = ctx.createRadialGradient(x, y, 0, x, y, r * 5);
+    grad.addColorStop(0, i % 2 ? "rgba(249,115,22,0.23)" : "rgba(20,184,166,0.25)");
+    grad.addColorStop(1, "rgba(0,0,0,0)");
+    ctx.fillStyle = grad;
+    ctx.beginPath();
+    ctx.arc(x, y, r * 5, 0, Math.PI * 2);
+    ctx.fill();
+  }
+  ctx.globalAlpha = 1;
+}
+
+function updateAnimatedBars(t) {
+  document.querySelectorAll(".bar").forEach((bar, index) => {
+    const scale = 0.82 + (Math.sin(t / 760 + index * 0.36) + 1) * 0.16;
+    bar.style.transform = `scaleY(${scale.toFixed(3)})`;
+  });
+}
+
+function pulse() {
+  wall.classList.remove("pulse");
+  requestAnimationFrame(() => wall.classList.add("pulse"));
+}
+
+function updateHud() {
+  if (!tile) return;
+  const rtt = Number.isFinite(bestRttMs) ? Math.round(bestRttMs) : "--";
+  const offset = `${clockOffsetMs >= 0 ? "+" : ""}${Math.round(clockOffsetMs)}ms`;
+  hud.textContent = `${tile.id} | ${nodeId.slice(0, 18)} | ${fps.toFixed(1)}fps | ${frameTimeMs.toFixed(1)}ms | rtt ${rtt}ms | offset ${offset}`;
+}
+
+function sendAck(message, status) {
+  if (!ws || ws.readyState !== WebSocket.OPEN) return;
+  ws.send(JSON.stringify({
+    type: "ack",
+    command_id: message.command_id,
+    node_id: nodeId,
+    tile_id: tile.id,
+    status,
+    client_time_ms: clientNowMs(),
+    server_estimated_ms: serverNowMs(),
+    clock_offset_ms: clockOffsetMs,
+    rtt_ms: Number.isFinite(bestRttMs) ? bestRttMs : null,
+  }));
+}
+
+function syncClock() {
+  if (!ws || ws.readyState !== WebSocket.OPEN) return;
+  ws.send(JSON.stringify({ type: "clock_ping", node_id: nodeId, client_send_ms: clientNowMs() }));
+}
+
+function handleClockPong(payload) {
+  const receiveMs = clientNowMs();
+  const sendMs = payload.client_send_ms;
+  if (typeof sendMs !== "number") return;
+  const rtt = receiveMs - sendMs;
+  const estimatedServerAtReceive = payload.server_time_ms + rtt / 2;
+  const nextOffset = estimatedServerAtReceive - receiveMs;
+  if (rtt < bestRttMs) {
+    bestRttMs = rtt;
+    clockOffsetMs = nextOffset;
+  } else {
+    clockOffsetMs = clockOffsetMs * 0.85 + nextOffset * 0.15;
+  }
+}
+
+function sendTelemetry() {
+  if (!ws || ws.readyState !== WebSocket.OPEN || !tile) return;
+  ws.send(JSON.stringify({
+    type: "telemetry",
+    node_id: nodeId,
+    tile_id: tile.id,
+    fps,
+    frame_time_ms: frameTimeMs,
+    dropped_frames: droppedFrames,
+  }));
+}
+
+function connectWs() {
+  const protocol = location.protocol === "https:" ? "wss" : "ws";
+  ws = new WebSocket(`${protocol}://${location.host}/ws/output/${tile.id}`);
+  ws.addEventListener("open", () => {
+    ws.send(JSON.stringify({
+      type: "hello",
+      node_id: nodeId,
+      tile_id: tile.id,
+      app_version: APP_VERSION,
+      user_agent: navigator.userAgent,
+    }));
+    syncClock();
+  });
+  ws.addEventListener("close", () => setTimeout(connectWs, 1200));
+  ws.addEventListener("message", (event) => {
+    const message = JSON.parse(event.data);
+    if (message.type === "clock_pong") handleClockPong(message.payload);
+    if (message.type === "state") commitScene({ command_id: message.command_id, payload: message.payload });
+    if (message.type === "prepare_scene") prepareScene(message);
+    if (message.type === "commit_scene") commitScene(message);
+    if (message.type === "component_action") runComponentAction(message);
+  });
+}
+
+function tickClock() {
+  clock.textContent = new Date().toLocaleTimeString("zh-CN", { hour12: false });
+}
+
+window.addEventListener("resize", layout);
+window.addEventListener("keydown", (event) => {
+  if (event.key.toLowerCase() === "h") hud.hidden = !hud.hidden;
+});
+
+bootstrap();
+tickClock();
+setInterval(tickClock, 1000);
+setInterval(syncClock, 2500);
+setInterval(sendTelemetry, 1000);