67 lines
1.8 KiB
JavaScript
67 lines
1.8 KiB
JavaScript
let chart = null;
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window.onload = init;
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async function init() {
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let start = new Date();
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start.setDate(start.getDate() - 7);
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const end = new Date();
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document.getElementById("date-start").valueAsDate = start;
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document.getElementById("date-end").valueAsDate = end;
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document.getElementById("btn-refresh").addEventListener("click", loadData);
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await loadDevices();
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await loadData();
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}
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async function loadData() {
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const start = document.getElementById("date-start").value;
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const end = document.getElementById("date-end").value;
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const granularity = document.getElementById("granularity").value;
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const device_eui = document.getElementById("device").value;
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const points = await fetchConsumption({
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device_eui: device_eui,
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start: start,
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end: end,
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granularity: granularity,
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});
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if (chart) {
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chart.destroy();
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}
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chart = renderChart(points, granularity);
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updateKPIs(points);
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}
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function updateKPIs(points) {
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const totalDisplay = document.getElementById("kpi-total");
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const avgDisplay = document.getElementById("kpi-avg");
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const countDisplay = document.getElementById("kpi-count");
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if (!points || points.length === 0) {
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total.textContent = "-";
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avg.textContent = "-";
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count.textContent = "-";
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return;
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}
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const totalValue = points.reduce((acc, p) => acc + p.delta_m3, 0);
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const avgValue = totalValue / points.length;
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totalDisplay.textContent = totalValue.toFixed(3);
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avgDisplay.textContent = avgValue.toFixed(3);
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countDisplay.textContent = points.length;
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}
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async function loadDevices() {
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const selectDeviceElmt = document.getElementById("device");
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const devices = await fetchDevices();
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devices.forEach((device) => {
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selectDeviceElmt.add(new Option(device.device_eui))
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});
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selectDeviceElmt.value = devices[0]?.device_eui ?? "";
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}
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