Github-Tools/github-topic-cloud.html at main · monapdx/Github-Tools · GitHub

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<!doctype html>
<html lang="en" class="neo-landing-root">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>GitHub Topic Cloud</title>
    <link rel="preconnect" href="https://fonts.googleapis.com" />
    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
    <link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap" rel="stylesheet" />
    <link rel="stylesheet" href="./github-tools-common.css" />
    <link rel="stylesheet" href="./github-tools-neo.css" />
  </head>
  <body class="neo-landing">
    <div class="wrap">
      <section class="tool-hero">
        <div class="tool-kicker">GitHub Tools Suite</div>
        <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>
      </section>

      <div class="tool-grid">
        <section class="card">
          <div class="card-header">
            <h2>Input + filters</h2>
            <p class="sub">Pick a user, optionally add a token, and tune how many topics to show.</p>
          </div>
          <div class="card-content section-stack">
            <form id="form" class="section-stack">
              <div class="field">
                <label for="username">GitHub username</label>
                <input id="username" type="text" placeholder="e.g. monapdx" autocomplete="off" />
              </div>
              <div class="actions">
                <button id="go" type="submit" class="primary">Generate</button>
                <button id="advancedBtn" class="toggle" type="button">Advanced (token)</button>
                <button id="clearTokenBtn" class="toggle hidden" type="button">Clear saved token</button>
              </div>
            </form>

            <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>
        </section>

        <section class="card">
          <div class="card-header">
            <h2>Results</h2>
            <p class="sub">Topic frequency, status messages, and summary information.</p>
          </div>
          <div class="card-content section-stack">
            <div id="status" class="status"></div>
            <div id="cloud" class="cloud"></div>
            <div class="footer">
              <span id="summary"></span>
            </div>
          </div>
        </section>
      </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>