web dashboard in single container

files/archive/web/html/src/redis.js

@@ -0,0 +1,145 @@
+/* ------------------------------------------------------------
+   1.  Socket-IO connection & helper functions (unchanged)
+   ------------------------------------------------------------ */
+const socket = io();
+
+socket.on('host_metrics', renderStatsTable);
+socket.on('connect_error', err => {
+  safeSetText('host_metrics', `Could not connect to server - ${err.message}`);
+});
+socket.on('reconnect', attempt => {
+  safeSetText('host_metrics', `Re-connected (attempt ${attempt})`);
+});
+
+function safeSetText(id, txt) {
+  const el = document.getElementById(id);
+  if (el) el.textContent = txt;
+}
+
+/* ------------------------------------------------------------------
+   2.  Table rendering - now orders rows before building the table
+   ------------------------------------------------------------------ */
+// helper function for table row ordering   
+function renderStatsTable(data) {
+  socket.emit('tableRendered');
+  renderGenericTable('host_metrics', data, 'No Stats available');
+}
+
+function renderGenericTable(containerId, data, emptyMsg) {
+  const container = document.getElementById(containerId);
+  if (!Array.isArray(data) || !data.length) {
+    container.textContent = emptyMsg;
+    return;
+  }
+
+  /* Merge rows by name (new logic) */
+  const mergedData = mergeRowsByName(data);
+
+  /* Order the merged rows – priority first */
+  const orderedData = orderRows(mergedData);
+
+  /* Build the table from the ordered data */
+  const table = buildTable(orderedData);
+  table.id = 'host_metrics_table';
+  container.innerHTML = '';
+  container.appendChild(table);
+}
+
+/* ------------------------------------------------------------
+   3.  Merge rows by name
+   ------------------------------------------------------------ */
+function mergeRowsByName(data) {
+  const groups = {}; // { source: { ... } }
+  data.forEach(row => {
+    const source = row.Source;      // <-- changed
+    if (!source) return;
+    if (!groups[source]) {
+      groups[source] = { Metric: [], Data: [] };
+    }
+    if ('Metric' in row && 'Data' in row) {
+      groups[source].Metric.push(row.Metric);
+      groups[source].Data.push(row.Data);
+    } 
+  });
+
+  const merged = [];
+  Object.entries(groups).forEach(([source, grp]) => {
+    merged.push({
+      Source: source,          // <-- keep the original key
+      Metric: grp.Metric,
+      Data: grp.Data,
+      Property: grp.Property,
+      Value: grp.Value
+    });
+  });
+  return merged;
+}
+
+// 3b. Order rows – put “System”, “CPU”, “RAM” first
+function orderRows(rows) {
+  // Priority list – can be updated later
+  const priority = ['System', 'CPU', 'RAM'];
+
+  // Map source → priority index
+  const priorityMap = {};
+  priority.forEach((src, idx) => {
+    priorityMap[src] = idx;
+  });
+
+  // Stable sort: keep original position if priorities are equal
+  return [...rows].sort((a, b) => {
+    const aIdx = priorityMap.hasOwnProperty(a.Source)
+      ? priorityMap[a.Source]
+      : Infinity;               // anything not in priority goes to the end
+    const bIdx = priorityMap.hasOwnProperty(b.Source)
+      ? priorityMap[b.Source]
+      : Infinity;
+
+    // If both have the same priority (or both Infinity), keep original order
+    return aIdx - bIdx;
+  });
+}
+
+/* ------------------------------------------------------------
+   4.  Build an HTML table from an array of objects
+   ------------------------------------------------------------ */
+function buildTable(data) {
+  const cols = ['Source', 'Metric', 'Data']; // explicit order
+  const table = document.createElement('table');
+
+  // Header
+  const thead = table.createTHead();
+  const headerRow = thead.insertRow();
+  cols.forEach(col => {
+    const th = document.createElement('th');
+    th.textContent = col;
+    headerRow.appendChild(th);
+  });
+
+  // Body
+  const tbody = table.createTBody();
+  data.forEach(item => {
+    const tr = tbody.insertRow();
+    cols.forEach(col => {
+      const td = tr.insertCell();
+       
+      const val = item[col];
+      if (Array.isArray(val)) {
+        // Create a <span> for each item
+        val.forEach((v, idx) => {
+          td.id = 'host_metrics_column';
+          const span = document.createElement('span');
+          span.textContent = v;
+          td.appendChild(span);
+
+          // Insert a line break after every item except the last
+          if (idx < val.length - 1) td.appendChild(document.createElement('br'));
+        });
+      } else {
+        td.textContent = val !== undefined ? val : '';
+      }
+    });
+  });
+
+  return table;
+}