function Get-EnergyConsumption {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]$ServerName
    )

    $cpuUsage = (Get-Counter -ComputerName $ServerName '\Processor(_Total)\% Processor Time').CounterSamples.CookedValue
    $memoryUsage = (Get-Counter -ComputerName $ServerName '\Memory\Available MBytes').CounterSamples.CookedValue
    
    # 计算能耗估算（基于Intel Xeon处理器能效模型）
    $energyCost = [math]::Round(($cpuUsage * 0.7) + ($memoryUsage * 0.05), 2)

    [PSCustomObject]@{
        ServerName = $ServerName
        Timestamp = (Get-Date).ToString('yyyy-MM-dd HH:mm:ss')
        CPUUsage = "$cpuUsage%"
        MemoryAvailable = "${memoryUsage}MB"
        EstimatedPower = "${energyCost}W"
        OptimizationSuggestion = if ($cpuUsage -lt 30) {'建议启用节能模式'} else {'建议优化负载分配'}
    }
}

# 监控服务器集群
'SRV01','SRV02','SRV03' | ForEach-Object {
    Get-EnergyConsumption -ServerName $_ -Verbose
} | Export-Csv -Path "Energy_Report_$(Get-Date -Format yyyyMMdd).csv"

function Optimize-WindowsSystem {
    param(
        [ValidateRange(1,24)]
        [int]$IdleThresholdHours = 4,
        [switch]$CleanTempFiles
    )

    try {
        # 检测闲置服务
        $idleServices = Get-Service | Where-Object {
            $_.Status -eq 'Running' -and 
            (Get-Process -Name $_.Name -ErrorAction SilentlyContinue).StartTime -lt (Get-Date).AddHours(-$IdleThresholdHours)
        }

        # 关闭非核心闲置服务
        $idleServices | Where-Object {$_.DisplayName -notmatch 'Critical'} | Stop-Service -Force

        # 清理临时文件
        if ($CleanTempFiles) {
            $tempPaths = @('$env:TEMP','$env:SystemRoot\Temp','$env:SystemRoot\Prefetch')
            Remove-Item -Path $tempPaths -Recurse -Force -ErrorAction SilentlyContinue
        }

        # 生成优化报告
        [PSCustomObject]@{
            StoppedServices = $idleServices.Count
            TempFilesCleaned = if($CleanTempFiles){ (Get-ChildItem $tempPaths -Recurse | Measure-Object).Count }else{ 0 }
            Timestamp = Get-Date
        } | Export-Clixml -Path "$env:ProgramData\SystemOptimizationReport.xml"
    }
    catch {
        Write-EventLog -LogName Application -Source 'SystemOptimizer' -EntryType Error -EventId 501 -Message $_.Exception.Message
    }
}