Frontend-Widgets/github-topic-cloud.html at main · monapdx/Frontend-Widgets · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>GitHub Topic Cloud</title>
    <style>
      :root {
        --bg: #0b0b0f;
        --panel: #12121a;
        --text: #f3f3f7;
        --muted: #b7b7c3;
        --border: #2a2a35;
        --accent: #ff009c;
        --chip: #171722;
        --chipHover: #1f1f2e;
      }
      * { box-sizing: border-box; }
      body {
        margin: 0;
        font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
        background: radial-gradient(1200px 700px at 20% 0%, rgba(255,0,156,.10), transparent 55%),
                    radial-gradient(900px 600px at 80% 20%, rgba(0,224,242,.08), transparent 55%),
                    var(--bg);
        color: var(--text);
      }
      .wrap {
        max-width: 980px;
        margin: 40px auto;
        padding: 0 16px 40px;
      }
      h1 {
        margin: 0 0 8px;
        font-size: 22px;
        letter-spacing: .2px;
      }
      p {
        margin: 0 0 18px;
        color: var(--muted);
        line-height: 1.4;
      }
      .panel {
        background: rgba(18,18,26,.9);
        border: 1px solid var(--border);
        border-radius: 14px;
        padding: 16px;
        backdrop-filter: blur(8px);
      }
      form {
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 10px;
        align-items: end;
      }
      label { display: block; font-size: 12px; color: var(--muted); margin: 0 0 6px; }
      input[type="text"], input[type="password"] {
        width: 100%;
        padding: 12px 12px;
        border-radius: 12px;
        border: 1px solid var(--border);
        background: #0f0f16;
        color: var(--text);
        outline: none;
      }
      input[type="text"]:focus, input[type="password"]:focus {
        border-color: rgba(255,0,156,.55);
        box-shadow: 0 0 0 3px rgba(255,0,156,.12);
      }
      button {
        padding: 12px 14px;
        border-radius: 12px;
        border: 1px solid rgba(255,0,156,.55);
        background: rgba(255,0,156,.14);
        color: var(--text);
        cursor: pointer;
        font-weight: 600;
      }
      button:hover { background: rgba(255,0,156,.22); }
      button:disabled { opacity: .55; cursor: not-allowed; }

      .row {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        align-items: center;
        margin-top: 10px;
      }

      .toggle {
        background: transparent;
        border: 1px solid var(--border);
        color: var(--muted);
        font-weight: 600;
      }
      .toggle:hover { background: rgba(255,255,255,.05); }

      .controls {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 10px;
        margin-top: 12px;
      }
      .control {
        background: #0f0f16;
        border: 1px solid var(--border);
        border-radius: 12px;
        padding: 10px;
      }
      .control .value {
        font-size: 12px;
        color: var(--muted);
        margin-top: 6px;
      }
      input[type="range"] { width: 100%; }

      .status {
        margin-top: 12px;
        color: var(--muted);
        font-size: 13px;
      }
      .status.error { color: #ff6b6b; }
      .status.ok { color: #9ef2c8; }

      .cloud {
        margin-top: 16px;
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        align-items: baseline;
      }
      .chip {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 10px;
        background: var(--chip);
        border: 1px solid var(--border);
        border-radius: 999px;
        text-decoration: none;
        color: var(--text);
        line-height: 1;
        transition: transform .06s ease, background .15s ease, border-color .15s ease;
        user-select: none;
        white-space: nowrap;
      }
      .chip:hover {
        background: var(--chipHover);
        border-color: rgba(255,0,156,.5);
        transform: translateY(-1px);
      }
      .chip .count {
        font-size: 12px;
        color: var(--muted);
        padding: 3px 8px;
        border-radius: 999px;
        border: 1px solid var(--border);
        background: rgba(0,0,0,.20);
      }

      .footer {
        margin-top: 14px;
        color: var(--muted);
        font-size: 12px;
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        align-items: center;
      }
      .footer a { color: var(--muted); }
      .footer a:hover { color: var(--text); }

      .hidden { display: none; }

      @media (max-width: 760px) {
        form { grid-template-columns: 1fr; }
        .controls { grid-template-columns: 1fr; }
      }
    </style>
  </head>
  <body>
    <div class="wrap">
      <h1>GitHub Topic Cloud</h1>
      <p>Enter a username to see their most frequently used repository topics. Click a topic to open the global GitHub topic page.</p>

      <div class="panel">
        <form id="form">
          <div>
            <label for="username">GitHub username</label>
            <input id="username" type="text" placeholder="e.g. monapdx" autocomplete="off" />
          </div>
          <button id="go" type="submit">Generate</button>
        </form>

        <div class="row">
          <button id="advancedBtn" class="toggle" type="button">Advanced (token)</button>
          <button id="clearTokenBtn" class="toggle hidden" type="button">Clear saved token</button>
        </div>

        <div id="advanced" class="controls hidden">
          <div class="control" style="grid-column: 1 / -1;">
            <label for="token">GitHub token (optional, stored locally)</label>
            <input id="token" type="password" placeholder="ghp_… (optional)" autocomplete="off" />
            <div class="value">Using a token helps avoid API rate limits. Token is saved in <code>localStorage</code> on this device.</div>
          </div>
        </div>

        <div class="controls">
          <div class="control">
            <label for="topN">Show top N topics</label>
            <input id="topN" type="range" min="10" max="100" value="40" />
            <div class="value"><span id="topNVal">40</span></div>
          </div>

          <div class="control">
            <label for="minFreq">Minimum frequency</label>
            <input id="minFreq" type="range" min="1" max="10" value="1" />
            <div class="value"><span id="minFreqVal">1</span></div>
          </div>

          <div class="control">
            <label for="includeForks">Include forks</label>
            <input id="includeForks" type="checkbox" />
            <div class="value">Off by default</div>
          </div>
        </div>

        <div id="status" class="status"></div>
        <div id="cloud" class="cloud"></div>

        <div class="footer">
          <span id="summary"></span>
        </div>
      </div>
    </div>

    <script>
      const $ = (id) => document.getElementById(id);

      const form = $("form");
      const usernameInput = $("username");
      const statusEl = $("status");
      const cloudEl = $("cloud");
      const summaryEl = $("summary");

      const advancedBtn = $("advancedBtn");
      const advancedPanel = $("advanced");
      const tokenInput = $("token");
      const clearTokenBtn = $("clearTokenBtn");

      const topN = $("topN");
      const topNVal = $("topNVal");
      const minFreq = $("minFreq");
      const minFreqVal = $("minFreqVal");
      const includeForks = $("includeForks");

      const goBtn = $("go");

      topN.addEventListener("input", () => topNVal.textContent = topN.value);
      minFreq.addEventListener("input", () => minFreqVal.textContent = minFreq.value);

      // localStorage token handling
      const TOKEN_KEY = "gh_topic_cloud_token";
      const savedToken = localStorage.getItem(TOKEN_KEY);
      if (savedToken) {
        tokenInput.value = savedToken;
        clearTokenBtn.classList.remove("hidden");
      }

      advancedBtn.addEventListener("click", () => {
        advancedPanel.classList.toggle("hidden");
        clearTokenBtn.classList.toggle("hidden", !localStorage.getItem(TOKEN_KEY));
      });

      tokenInput.addEventListener("change", () => {
        const t = tokenInput.value.trim();
        if (t) {
          localStorage.setItem(TOKEN_KEY, t);
          clearTokenBtn.classList.remove("hidden");
        } else {
          localStorage.removeItem(TOKEN_KEY);
          clearTokenBtn.classList.add("hidden");
        }
      });

      clearTokenBtn.addEventListener("click", () => {
        localStorage.removeItem(TOKEN_KEY);
        tokenInput.value = "";
        clearTokenBtn.classList.add("hidden");
        setStatus("Saved token cleared.", "ok");
      });

      function setStatus(msg, kind = "") {
        statusEl.textContent = msg || "";
        statusEl.className = "status" + (kind ? " " + kind : "");
      }

      function topicUrl(topic) {
        // GitHub topic URLs are kebab-case; topics from API are already like "data-sovereignty"
        const slug = String(topic).trim().toLowerCase();
        return `https://github.com/topics/${encodeURIComponent(slug)}`;
      }

      function clamp(n, a, b) { return Math.max(a, Math.min(b, n)); }

      function fontSizeFor(count, minC, maxC) {
        // log scale for nicer spread
        const min = Math.log(minC + 1);
        const max = Math.log(maxC + 1);
        const v = Math.log(count + 1);
        const t = (v - min) / (max - min || 1);
        const px = 12 + t * 18; // 12px..30px
        return `${clamp(px, 12, 30).toFixed(1)}px`;
      }

      async function fetchAllRepos(username, token, includeForksFlag) {
        const perPage = 100;
        let page = 1;
        let all = [];
        while (true) {
          const url = `https://api.github.com/users/${encodeURIComponent(username)}/repos?per_page=${perPage}&page=${page}&sort=updated`;
          const headers = {
            "Accept": "application/vnd.github+json",
            "X-GitHub-Api-Version": "2022-11-28"
          };
          if (token) headers["Authorization"] = `Bearer ${token}`;

          const res = await fetch(url, { headers });
          if (!res.ok) {
            let extra = "";
            try { extra = await res.text(); } catch {}
            throw new Error(`GitHub API error ${res.status} ${res.statusText}${extra ? " — " + extra : ""}`);
          }

          const batch = await res.json();
          if (!Array.isArray(batch)) break;

          const filtered = includeForksFlag ? batch : batch.filter(r => !r.fork);
          all = all.concat(filtered);

          if (batch.length < perPage) break;
          page += 1;

          // safety stop
          if (page > 20) break; // 2000 repos cap for sanity
        }
        return all;
      }

      function countTopics(repos) {
        const map = new Map();
        for (const r of repos) {
          const topics = Array.isArray(r.topics) ? r.topics : [];
          for (const t of topics) {
            const key = String(t).trim().toLowerCase();
            if (!key) continue;
            map.set(key, (map.get(key) || 0) + 1);
          }
        }
        return map;
      }

      function renderCloud(topicCounts, options) {
        cloudEl.innerHTML = "";
        summaryEl.textContent = "";

        const entries = [...topicCounts.entries()]
          .map(([topic, count]) => ({ topic, count }))
          .filter(x => x.count >= options.minFreq)
          .sort((a, b) => b.count - a.count)
          .slice(0, options.topN);

        if (!entries.length) {
          setStatus("No topics found (or filtered out).", "error");
          return;
        }

        const counts = entries.map(e => e.count);
        const minC = Math.min(...counts);
        const maxC = Math.max(...counts);

        for (const { topic, count } of entries) {
          const a = document.createElement("a");
          a.className = "chip";
          a.href = topicUrl(topic);
          a.target = "_blank";
          a.rel = "noopener noreferrer";

          a.style.fontSize = fontSizeFor(count, minC, maxC);

          const label = document.createElement("span");
          label.textContent = topic;

          const badge = document.createElement("span");
          badge.className = "count";
          badge.textContent = count;

          a.appendChild(label);
          a.appendChild(badge);
          cloudEl.appendChild(a);
        }

        const totalTopics = topicCounts.size;
        const totalTaggedRepos = [...topicCounts.values()].reduce((a,b)=>a+b,0);
        summaryEl.textContent = `Showing ${entries.length} topics • ${totalTopics} unique topics found • ${totalTaggedRepos} topic-usages counted (repos may contribute multiple topics).`;
        setStatus("Done.", "ok");
      }

      async function run() {
        const username = usernameInput.value.trim();
        if (!username) {
          setStatus("Please enter a GitHub username.", "error");
          return;
        }

        const token = (tokenInput.value || localStorage.getItem(TOKEN_KEY) || "").trim();
        const opts = {
          topN: Number(topN.value),
          minFreq: Number(minFreq.value),
          includeForks: includeForks.checked
        };

        setStatus(`Fetching repos for ${username}…`, "");
        cloudEl.innerHTML = "";
        summaryEl.textContent = "";
        goBtn.disabled = true;

        try {
          const repos = await fetchAllRepos(username, token, opts.includeForks);
          setStatus(`Counting topics across ${repos.length} repos…`, "");

          const topicCounts = countTopics(repos);
          if (topicCounts.size === 0) {
            setStatus("No topics found on this user's repos.", "error");
            return;
          }

          renderCloud(topicCounts, opts);
        } catch (err) {
          const msg = (err && err.message) ? err.message : String(err);
          // Common rate-limit hint
          const hint = msg.includes("403") ? " If you hit rate limits, add a token in Advanced." : "";
          setStatus(msg + hint, "error");
        } finally {
          goBtn.disabled = false;
        }
      }

      form.addEventListener("submit", (e) => {
        e.preventDefault();
        run();
      });

      // nice default if you want:
      // usernameInput.value = "monapdx";
      // run();
    </script>
  </body>
</html>