feat: use device choice in API consumption request instead of hardcoded

server/frontend/public/assets/js/main.js

@@ -10,15 +10,18 @@ async function init() {
   document.getElementById("date-end").valueAsDate = end;
   document.getElementById("btn-refresh").addEventListener("click", loadData);
 
-  loadData();
+  await loadDevices();
+  await loadData();
 }
 
 async function loadData() {
   const start = document.getElementById("date-start").value;
   const end = document.getElementById("date-end").value;
   const granularity = document.getElementById("granularity").value;
+  const device_eui = document.getElementById("device").value;
 
   const points = await fetchConsumption({
+    device_eui: device_eui,
     start: start,
     end: end,
     granularity: granularity,
@@ -50,3 +53,15 @@ function updateKPIs(points) {
   avgDisplay.textContent = avgValue.toFixed(3);
   countDisplay.textContent = points.length;
 }
+
+async function loadDevices() {
+  const selectDeviceElmt = document.getElementById("device");
+
+  const devices = await fetchDevices();
+
+  devices.forEach((device) => {
+    selectDeviceElmt.add(new Option(device.device_eui))
+  });
+
+  selectDeviceElmt.value = devices[0]?.device_eui ?? "";
+}