diff --git a/student_activity_report.html b/student_activity_report.html
new file mode 100644
index 0000000..2b79c9a
--- /dev/null
+++ b/student_activity_report.html
@@ -0,0 +1,1129 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>Course Activity Report</title>
+  <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
+  <style>
+    body {
+      font-family: sans-serif;
+      margin: 2em;
+    }
+    .course {
+      margin-bottom: 4em;
+      border-bottom: 1px solid #ccc;
+      padding-bottom: 2em;
+    }
+    canvas {
+      max-width: 100%;
+    }
+  </style>
+</head>
+<body>
+  <h1>Course Activity Report</h1>
+  <div id="reports"></div>
+
+  <script>
+    function getAllDates(start, end, maxMonths = 7) {
+      const dates = [];
+      const current = new Date(start);
+      const endLimit = new Date(start);
+      endLimit.setMonth(endLimit.getMonth() + maxMonths);
+      const last = new Date(end);
+      const endDate = last < endLimit ? last : endLimit;
+      while (current <= endDate) {
+        dates.push(current.toISOString().slice(0, 10));
+        current.setDate(current.getDate() + 1);
+      }
+      return dates;
+    }
+    
+    async function loadData() {
+      //const response = await fetch('cache/users/logs/12345_summary.json');
+      //const data = await response.json();
+      const data = {
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