Add PC uptime tracking feature

- Database: Add lastboottime column to machines table
- API: Accept lastBootUpTime parameter and store in lastboottime column
- PowerShell: Collect LastBootUpTime from Win32_OperatingSystem
  - Update-PC-Minimal.ps1: Add last boot time collection
  - Update-ShopfloorPCs-Remote.ps1: Add last boot time collection and API posting
- Display: Add Uptime column to displaypcs.asp with color-coded badges
  - > 90 days: red badge
  - > 30 days: yellow badge
  - > 7 days: blue badge
  - <= 7 days: muted text
- Filter: Add "Uptime > X days" filter dropdown (7, 30, 90 days)
- SQL: Production migration script for lastboottime column

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

api.asp

@@ -115,6 +115,13 @@ Sub UpdateCompleteAsset()
     Dim hasWinRM
     hasWinRM = Trim(Request.Form("hasWinRM") & "")
 
+    ' Last boot time (optional) - accepts both lastBootUpTime and lastBootTime
+    Dim lastBootTime
+    lastBootTime = Trim(Request.Form("lastBootUpTime") & "")
+    If lastBootTime = "" Then
+        lastBootTime = Trim(Request.Form("lastBootTime") & "")
+    End If
+
     ' DNC/GE registry data
     dncDualPathEnabled = Request.Form("dncDualPathEnabled")
     dncPath1Name = Trim(Request.Form("dncPath1Name") & "")
@@ -290,7 +297,14 @@ Sub UpdateCompleteAsset()
             winrmValue = 0
         End If
 
-        strSQL = "UPDATE machines SET serialnumber='" & safeSerial & "', modelnumberid=" & modelId & ", machinetypeid=" & machineTypeId & ", osid=" & osid & ", isvnc=" & vncValue & ", iswinrm=" & winrmValue & ", lastupdated=NOW() WHERE machineid=" & machineid
+        ' Build UPDATE with optional lastboottime
+        Dim lastBootPart
+        If lastBootTime <> "" Then
+            lastBootPart = ", lastboottime='" & Replace(lastBootTime, "'", "''") & "'"
+        Else
+            lastBootPart = ""
+        End If
+        strSQL = "UPDATE machines SET serialnumber='" & safeSerial & "', modelnumberid=" & modelId & ", machinetypeid=" & machineTypeId & ", osid=" & osid & ", isvnc=" & vncValue & ", iswinrm=" & winrmValue & lastBootPart & ", lastupdated=NOW() WHERE machineid=" & machineid
         objConn.Execute strSQL
         If Err.Number <> 0 Then
             SendError debugMsg & "10-UPDATE failed: " & Err.Description
@@ -321,7 +335,16 @@ Sub UpdateCompleteAsset()
             winrmValueInsert = 0
         End If
 
-        strSQL = "INSERT INTO machines (hostname, serialnumber, modelnumberid, machinetypeid, osid, machinestatusid, isvnc, iswinrm, lastupdated) VALUES ('" & safeHostname & "', '" & safeSerial & "', " & modelId & ", " & machineTypeId & ", " & osid & ", " & pcstatusid & ", " & vncValueInsert & ", " & winrmValueInsert & ", NOW())"
+        ' Build INSERT with optional lastboottime
+        Dim lastBootColInsert, lastBootValInsert
+        If lastBootTime <> "" Then
+            lastBootColInsert = ", lastboottime"
+            lastBootValInsert = ", '" & Replace(lastBootTime, "'", "''") & "'"
+        Else
+            lastBootColInsert = ""
+            lastBootValInsert = ""
+        End If
+        strSQL = "INSERT INTO machines (hostname, serialnumber, modelnumberid, machinetypeid, osid, machinestatusid, isvnc, iswinrm, lastupdated" & lastBootColInsert & ") VALUES ('" & safeHostname & "', '" & safeSerial & "', " & modelId & ", " & machineTypeId & ", " & osid & ", " & pcstatusid & ", " & vncValueInsert & ", " & winrmValueInsert & ", NOW()" & lastBootValInsert & ")"
         objConn.Execute strSQL
         If Err.Number <> 0 Then
             SendError debugMsg & "10-INSERT failed: " & Err.Description
@@ -922,6 +945,14 @@ Function InsertOrUpdatePC(conn, hostname, serialnumber, manufacturer, model, pcT
             sqlStatusId = "NULL"
         End If
 
+        ' Build lastboottime part for UPDATE
+        Dim sqlLastBoot
+        If lastBootTime <> "" Then
+            sqlLastBoot = "lastboottime = '" & Replace(lastBootTime, "'", "''") & "', "
+        Else
+            sqlLastBoot = ""
+        End If
+
         strSQL = "UPDATE machines SET " & _
                  "serialnumber = '" & safeSerial & "', " & _
                  "modelnumberid = " & sqlModelId & ", " & _
@@ -930,6 +961,7 @@ Function InsertOrUpdatePC(conn, hostname, serialnumber, manufacturer, model, pcT
                  "machinenumber = " & sqlMachineNum & ", " & _
                  "osid = " & sqlOsId & ", " & _
                  "machinestatusid = " & sqlStatusId & ", " & _
+                 sqlLastBoot & _
                  "lastupdated = NOW() " & _
                  "WHERE machineid = " & CLng(machineid) & " AND pctypeid IS NOT NULL"
 
@@ -967,7 +999,16 @@ Function InsertOrUpdatePC(conn, hostname, serialnumber, manufacturer, model, pcT
 
         ' Build SQL in parts to isolate error
         Dim sqlPart1, sqlPart2, sqlPart3
-        sqlPart1 = "INSERT INTO machines (hostname, serialnumber, modelnumberid, machinetypeid, pctypeid, loggedinuser, machinenumber, osid, machinestatusid, isactive, lastupdated) VALUES ("
+        ' Add lastboottime column if provided
+        Dim sqlLastBootCol, sqlLastBootVal
+        If lastBootTime <> "" Then
+            sqlLastBootCol = ", lastboottime"
+            sqlLastBootVal = ", '" & Replace(lastBootTime, "'", "''") & "'"
+        Else
+            sqlLastBootCol = ""
+            sqlLastBootVal = ""
+        End If
+        sqlPart1 = "INSERT INTO machines (hostname, serialnumber, modelnumberid, machinetypeid, pctypeid, loggedinuser, machinenumber, osid, machinestatusid, isactive, lastupdated" & sqlLastBootCol & ") VALUES ("
         sqlPart2 = "'" & safeHostname & "', '" & safeSerial & "', "
 
         If modelId > 0 Then
@@ -998,9 +1039,9 @@ Function InsertOrUpdatePC(conn, hostname, serialnumber, manufacturer, model, pcT
         End If
 
         If pcstatusid > 0 Then
-            sqlPart3 = sqlPart3 & CLng(pcstatusid) & ", 1, NOW())"
+            sqlPart3 = sqlPart3 & CLng(pcstatusid) & ", 1, NOW()" & sqlLastBootVal & ")"
         Else
-            sqlPart3 = sqlPart3 & "NULL, 1, NOW())"
+            sqlPart3 = sqlPart3 & "NULL, 1, NOW()" & sqlLastBootVal & ")"
         End If
 
         strSQL = sqlPart1 & sqlPart2 & sqlPart3

displaypcs.asp

@@ -39,11 +39,12 @@
                   </div>
                 </div>
 <%
-Dim currentPCStatus, recentFilter, deviceTypeFilter, pcTypeFilter, sel
+Dim currentPCStatus, recentFilter, deviceTypeFilter, pcTypeFilter, uptimeFilter, sel
 currentPCStatus = Request.QueryString("pcstatus")
 recentFilter = Request.QueryString("recent")
 deviceTypeFilter = Request.QueryString("devicetype")
 pcTypeFilter = Request.QueryString("pctype")
+uptimeFilter = Request.QueryString("uptime")
 
 ' Check for specialized PCs (CMM, Wax Trace, Measuring Tool) without equipment relationships
 Dim rsUnlinked, unlinkedCount
@@ -110,7 +111,13 @@ Set rsStatus = Nothing
                     <option value="">All Time</option>
                     <option value="7"<% If recentFilter = "7" Then Response.Write(" selected") End If%>>Last 7 Days</option>
                   </select>
-                  <% If currentPCStatus <> "" Or recentFilter <> "" Or deviceTypeFilter <> "" Or pcTypeFilter <> "" Or Request.QueryString("needsrelationship") <> "" Then %>
+                  <select id="uptimeFilter" class="btn btn-secondary btn-sm" onchange="updateFilter('uptime', this.value)">
+                    <option value="">All Uptimes</option>
+                    <option value="7"<% If uptimeFilter = "7" Then Response.Write(" selected") End If%>>Uptime > 7 Days</option>
+                    <option value="30"<% If uptimeFilter = "30" Then Response.Write(" selected") End If%>>Uptime > 30 Days</option>
+                    <option value="90"<% If uptimeFilter = "90" Then Response.Write(" selected") End If%>>Uptime > 90 Days</option>
+                  </select>
+                  <% If currentPCStatus <> "" Or recentFilter <> "" Or deviceTypeFilter <> "" Or pcTypeFilter <> "" Or uptimeFilter <> "" Or Request.QueryString("needsrelationship") <> "" Then %>
                   <a href="displaypcs.asp" class="btn btn-outline-secondary btn-sm">
                     <i class="zmdi zmdi-close"></i> Clear
                   </a>
@@ -129,6 +136,7 @@ Set rsStatus = Nothing
                     <th scope="col">Model</th>
                     <th scope="col">OS</th>
                     <th scope="col">Equipment</th>
+                    <th scope="col">Uptime</th>
                     <th scope="col">VNC</th>
                     <th scope="col">WinRM</th>
                   </tr>
@@ -137,17 +145,19 @@ Set rsStatus = Nothing
 
 <%
 	' Build query based on filters
-	Dim pcStatusFilter, recentDaysFilter, deviceTypeFilterSQL, pcTypeFilterSQL, needsRelationshipFilter, whereClause
+	Dim pcStatusFilter, recentDaysFilter, deviceTypeFilterSQL, pcTypeFilterSQL, uptimeFilterSQL, needsRelationshipFilter, whereClause
-	Dim displayName, hasVnc, vncHost, hasWinrm
+	Dim displayName, hasVnc, vncHost, hasWinrm, uptimeDays
 	pcStatusFilter = Request.QueryString("pcstatus")
 	recentDaysFilter = Request.QueryString("recent")
 	deviceTypeFilterSQL = Request.QueryString("devicetype")
 	pcTypeFilterSQL = Request.QueryString("pctype")
+	uptimeFilterSQL = Request.QueryString("uptime")
 	needsRelationshipFilter = Request.QueryString("needsrelationship")
 
 	' Base query with LEFT JOINs to show all PCs
 	strSQL = "SELECT m.machineid, m.hostname, m.serialnumber, m.machinenumber, m.machinestatusid, " & _
-	         "m.modelnumberid, m.osid, m.loggedinuser, m.lastupdated, m.isvnc, m.iswinrm, " & _
+	         "m.modelnumberid, m.osid, m.loggedinuser, m.lastupdated, m.isvnc, m.iswinrm, m.lastboottime, " & _
+	         "DATEDIFF(NOW(), m.lastboottime) AS uptime_days, " & _
 	         "vendors.vendor, models.modelnumber, operatingsystems.operatingsystem, " & _
 	         "c.address AS ipaddress, c.macaddress, " & _
 	         "machinestatus.machinestatus, " & _
@@ -184,6 +194,11 @@ Set rsStatus = Nothing
 		whereClause = whereClause & " AND m.pctypeid = " & pcTypeFilterSQL
 	End If
 
+	' Filter by uptime (days since last boot)
+	If uptimeFilterSQL <> "" And IsNumeric(uptimeFilterSQL) Then
+		whereClause = whereClause & " AND m.lastboottime IS NOT NULL AND DATEDIFF(NOW(), m.lastboottime) > " & uptimeFilterSQL
+	End If
+
 	' Filter for specialized PCs needing equipment relationships
 	If needsRelationshipFilter = "1" Then
 		whereClause = whereClause & " AND m.pctypeid = 7" & _
@@ -216,6 +231,23 @@ Set rsStatus = Nothing
 							Response.Write("<span class='text-muted'>-</span>")
 						End If
 					%></td>
+                    <td><%
+						' Uptime column - show days since last boot
+						If Not IsNull(rs("uptime_days")) And rs("uptime_days") <> "" Then
+							uptimeDays = CLng(rs("uptime_days") & "")
+							If uptimeDays > 90 Then
+								Response.Write("<span class='badge badge-danger' title='Last boot: " & rs("lastboottime") & "'>" & uptimeDays & "d</span>")
+							ElseIf uptimeDays > 30 Then
+								Response.Write("<span class='badge badge-warning' title='Last boot: " & rs("lastboottime") & "'>" & uptimeDays & "d</span>")
+							ElseIf uptimeDays > 7 Then
+								Response.Write("<span class='badge badge-info' title='Last boot: " & rs("lastboottime") & "'>" & uptimeDays & "d</span>")
+							Else
+								Response.Write("<span class='text-muted' title='Last boot: " & rs("lastboottime") & "'>" & uptimeDays & "d</span>")
+							End If
+						Else
+							Response.Write("<span class='text-muted'>-</span>")
+						End If
+					%></td>
                     <td><%
 						' VNC column with link
 						hasVnc = False

scripts/Update-PC-Minimal.ps1

@@ -81,11 +81,17 @@ if ($interfaces.Count -gt 0) {
     $data.networkInterfaces = ($interfaces | ConvertTo-Json -Compress)
 }
 
-# Try to get OS
+# Try to get OS and last boot time
 try {
     $os = Get-CimInstance -ClassName Win32_OperatingSystem -ErrorAction Stop
     $data.osVersion = $os.Caption
     "OS: $($data.osVersion)" | Tee-Object -FilePath $logFile -Append
+
+    # Get last boot time
+    if ($os.LastBootUpTime) {
+        $data.lastBootUpTime = $os.LastBootUpTime.ToString("yyyy-MM-dd HH:mm:ss")
+        "Last Boot: $($data.lastBootUpTime)" | Tee-Object -FilePath $logFile -Append
+    }
 } catch {
     "ERROR getting OS: $_" | Tee-Object -FilePath $logFile -Append
 }

scripts/Update-ShopfloorPCs-Remote.ps1

@@ -327,6 +327,7 @@ function Get-RemotePCInfo {
             $result.Model = $computerSystem.Model
             $result.LoggedInUser = $computerSystem.UserName
             $result.OSVersion = $os.Caption
+            $result.LastBootUpTime = if ($os.LastBootUpTime) { $os.LastBootUpTime.ToString("yyyy-MM-dd HH:mm:ss") } else { $null }
 
             # Get network interfaces
             $networkAdapters = Get-CimInstance -ClassName Win32_NetworkAdapterConfiguration |
@@ -692,6 +693,11 @@ function Send-PCDataToApi {
             osVersion = $PCData.OSVersion
         }
 
+        # Add last boot time if available
+        if ($PCData.LastBootUpTime) {
+            $postData.lastBootUpTime = $PCData.LastBootUpTime
+        }
+
         # Add machine number if available
         if ($PCData.MachineNo) {
             $postData.machineNo = $PCData.MachineNo

sql/add_lastboottime_column.sql

@@ -0,0 +1,29 @@
+-- Add lastboottime column to machines table for PC uptime tracking
+-- Run on production database
+-- Date: 2025-12-09
+
+-- Check if column exists before adding
+SET @dbname = DATABASE();
+SET @tablename = 'machines';
+SET @columnname = 'lastboottime';
+SET @preparedStatement = (SELECT IF(
+  (
+    SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
+    WHERE TABLE_SCHEMA = @dbname
+    AND TABLE_NAME = @tablename
+    AND COLUMN_NAME = @columnname
+  ) > 0,
+  'SELECT ''Column lastboottime already exists'';',
+  'ALTER TABLE machines ADD COLUMN lastboottime DATETIME NULL DEFAULT NULL AFTER lastupdated;'
+));
+
+PREPARE alterIfNotExists FROM @preparedStatement;
+EXECUTE alterIfNotExists;
+DEALLOCATE PREPARE alterIfNotExists;
+
+-- Verify the column was added
+SELECT COLUMN_NAME, DATA_TYPE, IS_NULLABLE, COLUMN_DEFAULT
+FROM INFORMATION_SCHEMA.COLUMNS
+WHERE TABLE_SCHEMA = DATABASE()
+AND TABLE_NAME = 'machines'
+AND COLUMN_NAME = 'lastboottime';