# AutoCleanC_DeepScan.ps1
# Windows Server 2012 C盘清理 + 深层扫描增强版

$LogDir = "C:\CleanCDrive"
$LogFile = "$LogDir\CleanLog.txt"
$ReportFile = "$LogDir\SpaceReport.txt"

If (!(Test-Path $LogDir)) { New-Item -ItemType Directory -Path $LogDir }

$IISLogKeepDays = 30
$LargeFileThresholdMB = 300

Function Write-Log {
    Param ([string]$Message)
    $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
    $logEntry = "$timestamp - $Message"
    Add-Content -Path $LogFile -Value $logEntry
    Write-Host $logEntry
}

Function Write-Report {
    Param ([string]$Message)
    Add-Content -Path $ReportFile -Value $Message
}

Write-Log "=================== C盘清理与深层分析开始 ==================="

# --------------------------
# 清理操作
# --------------------------
Try { Remove-Item "$env:windir\Temp\*" -Recurse -Force -ErrorAction SilentlyContinue; Write-Log "Windows 临时文件清理完成" } Catch { Write-Log "清理 Windows 临时文件失败: $_" }
Try { Remove-Item "$env:TEMP\*" -Recurse -Force -ErrorAction SilentlyContinue; Write-Log "用户临时文件清理完成" } Catch { Write-Log "清理用户临时文件失败: $_" }
Try { RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 255; Write-Log "IE缓存清理完成" } Catch { Write-Log "清理 IE缓存失败: $_" }
Try { Stop-Service wuauserv -Force; Remove-Item "$env:SystemRoot\SoftwareDistribution\Download\*" -Recurse -Force -ErrorAction SilentlyContinue; Start-Service wuauserv; Write-Log "Windows更新缓存清理完成" } Catch { Write-Log "清理 Windows更新缓存失败: $_" }
Try { Clear-RecycleBin -Force -ErrorAction SilentlyContinue; Write-Log "回收站清理完成" } Catch { Write-Log "清理回收站失败: $_" }

# 清理 IIS 日志
Try {
    $IISLogPath = "C:\inetpub\logs\LogFiles"
    If (Test-Path $IISLogPath) {
        $cutoffDate = (Get-Date).AddDays(-$IISLogKeepDays)
        Get-ChildItem -Path $IISLogPath -Recurse -File | Where-Object { $_.LastWriteTime -lt $cutoffDate } | ForEach-Object {
            Remove-Item $_.FullName -Force -ErrorAction SilentlyContinue
            Write-Log "删除 IIS日志: $($_.FullName)"
        }
        Write-Log "IIS日志清理完成（保留最近 $IISLogKeepDays 天）"
    } Else { Write-Log "未找到 IIS日志路径: $IISLogPath" }
} Catch { Write-Log "清理 IIS日志失败: $_" }

# --------------------------
# 深层扫描 C盘重要目录
# --------------------------
Write-Report "=================== C盘空间深层分析 ==================="
Write-Report "分析时间: $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')"

$drive = Get-PSDrive C
Write-Report "C盘总大小: $([math]::Round($drive.Used/1GB + $drive.Free/1GB,2)) GB"
Write-Report "已用空间: $([math]::Round($drive.Used/1GB,2)) GB"
Write-Report "可用空间: $([math]::Round($drive.Free/1GB,2)) GB"
Write-Report "`r`n"

# 定义需要扫描的重要目录
$scanDirs = @(
    "C:\Windows",
    "C:\ProgramData",
    "C:\Users",
    "C:\inetpub\logs\LogFiles"
)

# 遍历重要目录统计大小
foreach ($dir in $scanDirs) {
    Try {
        $size = (Get-ChildItem $dir -Recurse -File -ErrorAction SilentlyContinue | Measure-Object Length -Sum).Sum
        Write-Report "$([math]::Round($size/1GB,2)) GB - $dir"
    } Catch {
        Write-Log "计算文件夹大小失败: $dir"
    }
}

# --------------------------
# 数据库目录占用报告（可选，InfluxDB / 其他数据库）
# --------------------------
$DBDirs = @("C:\Users\Administrator\.influxdbv2")
foreach ($db in $DBDirs) {
    if (Test-Path $db) {
        Try {
            $size = (Get-ChildItem $db -Recurse -File -ErrorAction SilentlyContinue | Measure-Object Length -Sum).Sum
            Write-Report "$([math]::Round($size/1GB,2)) GB - 数据库目录: $db"
        } Catch {
            Write-Log "计算数据库目录大小失败: $db"
        }
    }
}

# --------------------------
# 扫描大文件（>300 MB）
# --------------------------
Write-Report "`r`nC盘大文件（>$LargeFileThresholdMB MB）:"
foreach ($dir in $scanDirs + $DBDirs) {
    Try {
        Get-ChildItem $dir -Recurse -File -ErrorAction SilentlyContinue | Where-Object { $_.Length -gt ($LargeFileThresholdMB *1MB) } | Sort-Object Length -Descending | ForEach-Object {
            $sizeGB = [math]::Round($_.Length/1GB,2)
            Write-Report "$sizeGB GB - $($_.FullName)"
        }
    } Catch {
        Write-Log "扫描大文件失败: $dir"
    }
}

Write-Log "C盘清理与深层分析完成"
Write-Report "=================== 分析结束 ===================`r`n"