#Requires -RunAsAdministrator
<#
.SYNOPSIS
    Deletes Revit cache and temp files for all user profiles on the machine.
.DESCRIPTION
    Targets CollaborationCache, UserDataCache, journal files, and Revit-related
    temp files. Does NOT touch user preferences or settings.
#>

$ErrorActionPreference = 'SilentlyContinue'

$totalFreed = 0
$deletedItems = 0

function Remove-RevitPath {
    param(
        [string]$Path,
        [string]$Label
    )
    if (-not (Test-Path $Path)) { return 0 }

    $sizeBefore = (Get-ChildItem $Path -Recurse -Force -ErrorAction SilentlyContinue |
        Measure-Object -Property Length -Sum).Sum
    $sizeBefore = if ($sizeBefore) { $sizeBefore } else { 0 }

    Remove-Item $Path -Recurse -Force -ErrorAction SilentlyContinue
    Write-Host "  Removed: $Label ($([math]::Round($sizeBefore / 1MB, 2)) MB)" -ForegroundColor Green
    return $sizeBefore
}

function Remove-RevitFiles {
    param(
        [string]$Path,
        [string]$Filter,
        [string]$Label
    )
    if (-not (Test-Path $Path)) { return 0 }

    $files = Get-ChildItem $Path -Filter $Filter -Recurse -Force -ErrorAction SilentlyContinue
    if (-not $files) { return 0 }

    $size = ($files | Measure-Object -Property Length -Sum).Sum
    $size = if ($size) { $size } else { 0 }

    $files | Remove-Item -Force -ErrorAction SilentlyContinue
    Write-Host "  Removed: $Label ($([math]::Round($size / 1MB, 2)) MB, $($files.Count) files)" -ForegroundColor Green
    return $size
}

Write-Host "`nRevit Cache Cleaner" -ForegroundColor Cyan
Write-Host "===================" -ForegroundColor Cyan

$userProfiles = Get-ChildItem 'C:\Users' -Directory -ErrorAction Stop |
    Where-Object { $_.Name -notin @('Public', 'Default', 'Default User', 'All Users') }

foreach ($profile in $userProfiles) {
    $userName  = $profile.Name
    $localApp  = Join-Path $profile.FullName 'AppData\Local'
    $localTemp = Join-Path $profile.FullName 'AppData\Local\Temp'

    # Find all Revit version folders (e.g. "Autodesk Revit 2022")
    $revitLocalBase = Join-Path $localApp 'Autodesk\Revit'
    $revitVersions  = Get-ChildItem $revitLocalBase -Directory -ErrorAction SilentlyContinue

    if (-not $revitVersions) { continue }

    Write-Host "`nUser: $userName" -ForegroundColor Yellow

    foreach ($ver in $revitVersions) {
        Write-Host "  Version: $($ver.Name)"

        # Worksharing / cloud model cache
        $totalFreed += Remove-RevitPath (Join-Path $ver.FullName 'CollaborationCache') 'CollaborationCache'

        # User data cache
        $totalFreed += Remove-RevitPath (Join-Path $ver.FullName 'UserDataCache') 'UserDataCache'

        # Crash reports / dump files
        $totalFreed += Remove-RevitPath (Join-Path $ver.FullName 'CrashReport') 'CrashReports'
        $totalFreed += Remove-RevitPath (Join-Path $ver.FullName 'RevitCrashFiles') 'RevitCrashFiles'

        # Journal (log) files — keeps folder, deletes contents
        $journalsPath = Join-Path $ver.FullName 'Journals'
        $totalFreed  += Remove-RevitFiles $journalsPath '*.txt' 'Journal files'

        # Loose .tmp files in the version root
        $totalFreed += Remove-RevitFiles $ver.FullName '*.tmp' '.tmp files'
    }

    # Revit-related temp files in %LOCALAPPDATA%\Temp
    $revitTempPattern = @('Revit_*.tmp', 'acad*.tmp', 'rvt*.tmp', 'Autodesk*.tmp')
    foreach ($pattern in $revitTempPattern) {
        $totalFreed += Remove-RevitFiles $localTemp $pattern "Temp\$pattern"
    }
}

# Machine-wide Autodesk temp (some installers/components write here)
$machineTemp = 'C:\Windows\Temp'
$totalFreed += Remove-RevitFiles $machineTemp 'Revit_*.tmp' 'Windows\Temp Revit files'
$totalFreed += Remove-RevitFiles $machineTemp 'Autodesk*.tmp' 'Windows\Temp Autodesk files'

Write-Host "`n===================" -ForegroundColor Cyan
Write-Host "Total freed: $([math]::Round($totalFreed / 1MB, 2)) MB" -ForegroundColor Cyan
Write-Host "Done.`n" -ForegroundColor Cyan