From ae603d440c3fd641ba98562b45a944cff89a0fbb Mon Sep 17 00:00:00 2001
From: Dottere <balogh.t.1333@gmail.com>
Date: Tue, 6 Oct 2026 17:30:25 +0200
Subject: [PATCH] testing web integration

---
 internal/http_internal/ssehandler.go |  2 +-
 web/index.html                       |  6 +++
 web/js/script.js                     | 76 ++++++++++++++++++++++++++++
 3 files changed, 83 insertions(+), 1 deletion(-)
 create mode 100644 web/js/script.js

diff --git a/internal/http_internal/ssehandler.go b/internal/http_internal/ssehandler.go
index 0cb6a88..ef99950 100644
--- a/internal/http_internal/ssehandler.go
+++ b/internal/http_internal/ssehandler.go
@@ -24,7 +24,7 @@ func SSEHandler(w http.ResponseWriter, r *http.Request) {
 	clientGone := r.Context().Done() // Channel to signal client disconnection
 
 	rc := http.NewResponseController(w)
-	t := time.NewTicker(time.Second * 5)
+	t := time.NewTicker(time.Millisecond * 1000)
 	defer t.Stop()
 	for {
 		select {
diff --git a/web/index.html b/web/index.html
index fe810b2..17fabec 100644
--- a/web/index.html
+++ b/web/index.html
@@ -4,8 +4,14 @@
 	<meta charset="UTF-8">
 	<meta name="viewport" content="width=device-width, initial-scale=1.0">
 	<title>Document</title>
+	<script src="js/script.js"></script>
 </head>
 <body>
 <h1>Hello world!</h1>
+<p id="cpu-load">Waiting for load data...</p>
+<p id="cpu-usage">Waiting for usage data...</p>
+<p id="memory">Waiting for memory data...</p>
+<p id="temperature">Waiting for temperature data...</p>
+<p id="uptime">Waiting for uptime data...</p>
 </body>
 </html>
diff --git a/web/js/script.js b/web/js/script.js
new file mode 100644
index 0000000..93cc4f2
--- /dev/null
+++ b/web/js/script.js
@@ -0,0 +1,76 @@
+const baseUrl = window.location
+
+const eventSource = new EventSource(baseUrl + "/api/events")
+
+let prevCPUIdle = 0
+let prevCPUKernel = 0
+let prevCPUUser = 0
+
+eventSource.onmessage = function (event) {
+  const data = JSON.parse(event.data)
+
+  const GB = 1024 * 1024 * 1024
+
+  let currentCPUIdle = data.processor_info.IdleTimeSinceBoot
+  let currentCPUKernel = data.processor_info.KernelTimeSinceBoot
+  let currentCPUUser = data.processor_info.UserTimeSinceBoot
+
+  document.getElementById("cpu-load").innerText = data.load_average.Load1.toFixed(2) + " " + data.load_average.Load5.toFixed(2) + " " + data.load_average.Load15.toFixed(2)
+  document.getElementById("cpu-usage").innerText = calculateCPUUsage(currentCPUIdle, currentCPUKernel, currentCPUUser).toFixed(2) + "%"
+  document.getElementById("memory").innerText = ((data.memory_info.SystemMemory - data.memory_info.AvailableMemory) / GB).toFixed(2) + "/" + (data.memory_info.SystemMemory / GB).toFixed(2)
+  document.getElementById("temperature").innerText = checkTemperatureAvailability(data.temperature_info)
+  document.getElementById("uptime").innerText = formatUptime(data.uptime_info)
+}
+
+function calculateCPUUsage(currentIdle, currentKernel, currentUser) {
+  if (prevCPUIdle === 0 || prevCPUKernel === 0 || prevCPUUser === 0) {
+    prevCPUIdle = currentIdle
+    prevCPUKernel = currentKernel
+    prevCPUUser = currentUser
+
+    return 0
+  }
+
+  deltaIdle = currentIdle - prevCPUIdle
+  deltaKernel = currentKernel - prevCPUKernel
+  deltaUser = currentUser - prevCPUUser
+
+  deltaTotal = deltaIdle + deltaKernel + deltaUser
+
+  totalCPUUsage = ((deltaKernel + deltaUser) / deltaTotal) * 100
+
+  prevCPUIdle = currentIdle
+  prevCPUKernel = currentKernel
+  prevCPUUser = currentUser
+
+  return totalCPUUsage
+}
+
+function checkTemperatureAvailability(temperatureStruct) {
+  if (temperatureStruct.Supported) {
+    return temperatureStruct.Celsius + "C°"
+  } else {
+    return "Unsupported"
+  }
+}
+
+function formatUptime(uptimeStruct) {
+  total = Math.round(uptimeStruct.Uptime)
+  if (total < 60) {
+    return Math.floor(total)
+  }
+  s = total % 60
+  m = (total / 60) % 60
+
+  if (total < 3000) {
+    return Math.floor(m)+":"+String(Math.floor(s)).padStart(2, '0')
+  }
+
+  h = (total / 3600) % 24
+  if (total < 86400) {
+    return Math.floor(h)+":"+String(Math.floor(m)).padStart(2, '0')+":"+String(Math.floor(s)).padStart(2, '0')
+  }
+
+  d = total / 86400
+  return  Math.floor(d)+":"+String(Math.floor(h)).padStart(2, '0')+":"+String(Math.floor(m)).padStart(2, '0')+":"+String(Math.floor(s)).padStart(2, '0')
+}