RLEC/index.html at main · solstirling/RLEC · GitHub

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Resource Limit Exceeded Counter</title>
  <style>
    :root {
      --bg: #f7f8fa;
      --panel: #ffffff;
      --text: #111827;
      --muted: #6b7280;
      --accent: #0f766e;
      --accent-hover: #0d655f;
      --danger: #b91c1c;
      --danger-hover: #991b1b;
      --ring: #99f6e4;
      --danger-ring: #fecaca;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
      color: var(--text);
      background: linear-gradient(160deg, #eef2ff 0%, var(--bg) 45%, #f0fdfa 100%);
      display: grid;
      place-items: center;
      padding: 1.25rem;
    }

    .card {
      width: min(640px, 100%);
      background: var(--panel);
      border: 1px solid #e5e7eb;
      border-radius: 16px;
      box-shadow: 0 12px 28px rgba(17, 24, 39, 0.08);
      padding: clamp(1.25rem, 3vw, 2rem);
      text-align: center;
    }

    h1 {
      margin: 0 0 0.5rem;
      letter-spacing: 0.04em;
      font-size: clamp(1.25rem, 3.2vw, 2rem);
      line-height: 1.2;
      text-transform: uppercase;
    }

    p {
      margin: 0;
      color: var(--muted);
      font-size: 0.95rem;
    }

    .tally {
      margin: 1.4rem 0;
      font-size: clamp(3rem, 12vw, 6rem);
      line-height: 1;
      font-weight: 800;
      letter-spacing: 0.04em;
    }

    .controls {
      display: flex;
      justify-content: center;
      gap: 0.75rem;
      flex-wrap: wrap;
      margin-top: 1rem;
    }

    button {
      border: none;
      border-radius: 12px;
      color: #ffffff;
      font-size: 1rem;
      font-weight: 700;
      padding: 0.85rem 1.1rem;
      cursor: pointer;
      transition: background 140ms ease, transform 140ms ease, opacity 140ms ease;
      min-width: 180px;
    }

    #addButton {
      background: var(--accent);
    }

    #addButton:hover {
      background: var(--accent-hover);
      transform: translateY(-1px);
    }

    #subtractButton {
      background: var(--danger);
    }

    #subtractButton:hover {
      background: var(--danger-hover);
      transform: translateY(-1px);
    }

    button:active {
      transform: translateY(0);
    }

    button:disabled {
      opacity: 0.7;
      cursor: not-allowed;
      transform: none;
    }

    #addButton:focus-visible {
      outline: 3px solid var(--ring);
      outline-offset: 2px;
    }

    #subtractButton:focus-visible {
      outline: 3px solid var(--danger-ring);
      outline-offset: 2px;
    }

    .status {
      margin-top: 0.9rem;
      min-height: 1.2em;
      color: var(--muted);
      font-size: 0.9rem;
    }

    .status.error {
      color: var(--danger);
    }
  </style>
</head>
<body>
  <main class="card">
    <h1>Resource Limit Exceeded Counter</h1>
    <p>Shared tally across all devices that open this site.</p>
    <div class="tally" id="tally" aria-live="polite">0</div>

    <div class="controls">
      <button id="addButton" type="button">Add +1</button>
      <button id="subtractButton" type="button">Subtract -1</button>
    </div>

    <div class="status" id="status" aria-live="polite"></div>
  </main>

  <script>
    const tallyEl = document.getElementById("tally");
    const addButton = document.getElementById("addButton");
    const subtractButton = document.getElementById("subtractButton");
    const statusEl = document.getElementById("status");

    const API_BASE = "https://api.counterapi.dev/v1";
    const COUNTER_NAMESPACE = "rlec-shared-public";
    const COUNTER_NAME = "resource-limit-exceeded";
    const COUNTER_BASE_URL = `${API_BASE}/${encodeURIComponent(COUNTER_NAMESPACE)}/${encodeURIComponent(COUNTER_NAME)}/`;


    function setStatus(message, isError = false) {
      statusEl.textContent = message;
      statusEl.classList.toggle("error", isError);
    }

    function setBusy(isBusy) {
      addButton.disabled = isBusy;
      subtractButton.disabled = isBusy;
    }

    function setTally(value) {
      tallyEl.textContent = String(value);
    }

    function readCount(data) {
      const raw = data && (data.count ?? data.Count);
      const count = Number(raw);
      if (!Number.isFinite(count)) {
        throw new Error("Invalid count payload");
      }
      return count;
    }

    async function requestCount(endpoint = "") {
      const url = endpoint ? `${COUNTER_BASE_URL}${endpoint}` : COUNTER_BASE_URL;
      const response = await fetch(url, { method: "GET", cache: "no-store" });
      const payload = await response.json().catch(() => ({}));

      if (!response.ok) {
        const err = new Error(`Counter API request failed (${response.status})`);
        err.status = response.status;
        throw err;
      }

      return readCount(payload);
    }

    async function loadCount() {
      try {
        return await requestCount();
      } catch (error) {
        if (error && error.status === 404) {
          try {
            return await requestCount("set?count=0");
          } catch {
            await requestCount("up");
            return await requestCount("down");
          }
        }
        throw error;
      }
    }

    async function updateCount(direction) {
      setBusy(true);
      setStatus("Updating...");

      try {
        const endpoint = direction === "up" ? "up" : "down";
        const count = await requestCount(endpoint);
        setTally(count);
        setStatus("Updated");
      } catch {
        setStatus("Could not reach the shared counter. Try again.", true);
      } finally {
        setBusy(false);
      }
    }

    addButton.addEventListener("click", () => updateCount("up"));
    subtractButton.addEventListener("click", () => updateCount("down"));

    async function initialLoad() {
      setBusy(true);
      setStatus("Loading...");

      try {
        const count = await loadCount();
        setTally(count);
        setStatus("");
      } catch {
        setStatus("Could not load shared tally. Check internet connection.", true);
      } finally {
        setBusy(false);
      }
    }

    initialLoad();
    setInterval(async () => {
      try {
        const count = await requestCount();
        setTally(count);
      } catch {
        // Keep current tally on transient failures.
      }
    }, 3000);
  </script>
</body>
</html>