From 8519b508bcf7d30fca1ef902c5fa9740392eace4 Mon Sep 17 00:00:00 2001
From: Mika <kontakt@donau2space.de>
Date: Mon, 9 Mar 2026 13:44:27 +0000
Subject: [PATCH] Add artifact.visualization/js/app.js

---
 artifact.visualization/js/app.js | 128 +++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 artifact.visualization/js/app.js

diff --git a/artifact.visualization/js/app.js b/artifact.visualization/js/app.js
new file mode 100644
index 0000000..b587a02
--- /dev/null
+++ b/artifact.visualization/js/app.js
@@ -0,0 +1,128 @@
+/**
+ * @file js/app.js
+ * @description Entry logic: Initialisiert Anwendung, lädt Daten und orchestriert UI-Aktualisierungen.
+ */
+
+/**
+ * Lädt Retry-Statistiken anhand optionaler Filterparameter.
+ * @param {Object} [filters={}] - Optionale Filter (z.B. {stratum, policy_hash}).
+ * @returns {Promise<Object>} Statistikdaten aus der API.
+ */
+const fetchRetryStats = async (filters = {}) => {
+  const params = new URLSearchParams(filters);
+  const url = params.toString() ? `/api/retry-stats?${params}` : '/api/retry-stats';
+  try {
+    const response = await fetch(url);
+    if (!response.ok) throw new Error(`API Error: ${response.status}`);
+    return await response.json();
+  } catch (err) {
+    console.error('Fehler beim Abrufen der Retry-Statistiken:', err);
+    return null;
+  }
+};
+
+/**
+ * Bindet Event-Listener an UI-Elemente für interaktive Filterung.
+ * @returns {void}
+ */
+const bindUIEvents = () => {
+  const stratumSelect = document.getElementById('filter-stratum');
+  const policySelect = document.getElementById('filter-policy');
+
+  if (stratumSelect) {
+    stratumSelect.addEventListener('change', () => {
+      refreshData({ stratum: stratumSelect.value, policy_hash: policySelect?.value });
+    });
+  }
+
+  if (policySelect) {
+    policySelect.addEventListener('change', () => {
+      refreshData({ stratum: stratumSelect?.value, policy_hash: policySelect.value });
+    });
+  }
+
+  const refreshButton = document.getElementById('btn-refresh');
+  if (refreshButton) {
+    refreshButton.addEventListener('click', () => {
+      refreshData({ stratum: stratumSelect?.value, policy_hash: policySelect?.value });
+    });
+  }
+};
+
+/**
+ * Aktualisiert Dashboard-Daten durch Abrufen und Rendern neuer Statistiken.
+ * @param {Object} [filters={}] - Aktuelle Filterparameter.
+ * @returns {Promise<void>}
+ */
+const refreshData = async (filters = {}) => {
+  const container = document.getElementById('dashboard');
+  if (!container) return;
+
+  container.setAttribute('aria-busy', 'true');
+
+  const data = await fetchRetryStats(filters);
+  if (!data) {
+    container.innerHTML = '<p role="alert">Fehler beim Laden der Daten.</p>';
+    container.removeAttribute('aria-busy');
+    return;
+  }
+
+  renderDashboard(data);
+  container.removeAttribute('aria-busy');
+};
+
+/**
+ * Rendert die geladenen Daten ins Dashboard.
+ * @param {Object} data - Datenobjekt aus API.
+ */
+const renderDashboard = (data) => {
+  const { p95, p99, unknown_rate, healing_rate, stats } = data;
+  const statsContainer = document.getElementById('dashboard');
+  if (!statsContainer) return;
+
+  statsContainer.innerHTML = `
+    <section class="metrics">
+      <h2>Performance-Kennzahlen</h2>
+      <ul>
+        <li><strong>P95:</strong> ${p95 ?? '-'} ms</li>
+        <li><strong>P99:</strong> ${p99 ?? '-'} ms</li>
+      </ul>
+    </section>
+    <section class="rates">
+      <h2>Raten</h2>
+      <ul>
+        <li><strong>Unknown Rate:</strong> ${(unknown_rate * 100).toFixed(2)}%</li>
+        <li><strong>Heilungsrate:</strong> ${(healing_rate * 100).toFixed(2)}%</li>
+      </ul>
+    </section>
+    <section class="details">
+      <h2>Statistikdetails</h2>
+      <div role="table" class="stats-table">
+        <div role="row" class="stats-header">
+          <div role="columnheader">Δt&lt;0</div>
+          <div role="columnheader">Warnrate</div>
+          <div role="columnheader">Status</div>
+        </div>
+        ${Array.isArray(stats) && stats.length > 0
+          ? stats.map(s => `
+            <div role="row" class="stats-row">
+              <div role="cell">${s.delta_negative}</div>
+              <div role="cell">${(s.warn_rate * 100).toFixed(2)}%</div>
+              <div role="cell">${s.status ?? 'n/a'}</div>
+            </div>`).join('')
+          : '<div role="row"><div role="cell" colspan="3">Keine Daten</div></div>'}
+      </div>
+    </section>
+  `;
+};
+
+/**
+ * Initialisiert die Anwendung: Datenabruf und Event-Bindings.
+ * @returns {Promise<void>}
+ */
+const initApp = async () => {
+  await refreshData();
+  bindUIEvents();
+};
+
+window.addEventListener('load', initApp);
\ No newline at end of file