# ScoutIT Remote Support (RustDesk) - Uninstall Script
# Removes ALL installed versions: ScoutIT-RemoteSupport (hyphen), ScoutIT Remote Support
# (spaces), plain RustDesk — side-by-side installs included.
$ErrorActionPreference = 'SilentlyContinue'

# ── Config ────────────────────────────────────────────────────────────────────
# Pattern is case-insensitive via -match. [-\s]? tolerates hyphen OR space OR
# nothing between "ScoutIT", "Remote", and "Support" — covers every branding
# we've shipped.
$namePattern    = 'ScoutIT[-\s]?Remote[-\s]?Support|ScoutIT|RustDesk'
$servicePattern = 'ScoutIT[-\s]?Remote[-\s]?Support|RustDesk'
$processPattern = 'ScoutIT[-\s]?Remote[-\s]?Support|scoutit|rustdesk'

$fallbackInstallDirs = @(
    'C:\Program Files\ScoutIT-RemoteSupport',
    'C:\Program Files (x86)\ScoutIT-RemoteSupport',
    'C:\Program Files\ScoutIT Remote Support',
    'C:\Program Files (x86)\ScoutIT Remote Support',
    'C:\Program Files\RustDesk',
    'C:\Program Files (x86)\RustDesk'
)

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

Write-Host "Starting ScoutIT Remote Support / RustDesk uninstall (all versions)..."

# ── Stop every matching service ──────────────────────────────────────────────
$services = Get-Service -ErrorAction SilentlyContinue |
            Where-Object { $_.Name -match $servicePattern -or $_.DisplayName -match $servicePattern }
if ($services) {
    foreach ($s in $services) {
        Write-Host "Stopping service: $($s.Name) ($($s.DisplayName))..."
        Stop-Service -Name $s.Name -Force -ErrorAction SilentlyContinue
    }
    Start-Sleep -Seconds 3
} else {
    Write-Host "No matching services found."
}

# ── Enumerate every matching registry uninstall entry ────────────────────────
Write-Host "Scanning registry for all matching uninstall entries..."
$uninstallKeys = @(
    'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*',
    'HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*'
)

$entries = foreach ($key in $uninstallKeys) {
    Get-ItemProperty $key -ErrorAction SilentlyContinue |
        Where-Object { $_.DisplayName -match $namePattern -or $_.Publisher -match $namePattern }
}

if ($entries) {
    Write-Host "Found $($entries.Count) matching entry/entries:"
    $entries | ForEach-Object { Write-Host "  - $($_.DisplayName) [$($_.PSChildName)]" }
} else {
    Write-Host "No matching uninstall entries in registry."
}

# Collect InstallLocation values so we can both run exe --uninstall-service
# and clean the folders after MSI removal.
$installLocations = @()
foreach ($e in $entries) {
    if ($e.InstallLocation -and (Test-Path $e.InstallLocation)) {
        $installLocations += $e.InstallLocation.TrimEnd('\')
    }
}
$installLocations += $fallbackInstallDirs | Where-Object { Test-Path $_ }
$installLocations = $installLocations | Select-Object -Unique

# ── Graceful service unregister via every exe we can find ────────────────────
foreach ($dir in $installLocations) {
    Get-ChildItem $dir -Filter '*.exe' -ErrorAction SilentlyContinue | ForEach-Object {
        Write-Host "Unregistering service via: $($_.FullName)"
        Start-Process -FilePath $_.FullName -ArgumentList '--uninstall-service' -Wait -ErrorAction SilentlyContinue
    }
}
if ($installLocations) { Start-Sleep -Seconds 5 }

# ── Uninstall every matching MSI / entry ─────────────────────────────────────
foreach ($e in $entries) {
    $name = $e.DisplayName
    $code = $e.PSChildName
    if ($code -match '^\{') {
        Write-Host "Running MSI uninstall for $name [$code]..."
        Start-Process -FilePath "msiexec.exe" `
                      -ArgumentList "/x `"$code`" /qn /norestart" `
                      -Wait
        Start-Sleep -Seconds 10
    } elseif ($e.UninstallString) {
        Write-Host "Running UninstallString for $name..."
        $cmd  = $e.UninstallString -replace '"', ''
        $exe  = ($cmd -split ' ')[0]
        $rest = ($cmd -split ' ', 2)[1]
        $args = "$rest /S /qn /norestart".Trim()
        Start-Process -FilePath $exe -ArgumentList $args -Wait -ErrorAction SilentlyContinue
        Start-Sleep -Seconds 10
    } else {
        Write-Warning "No ProductCode or UninstallString for $name - skipping MSI step."
    }
}

# ── Kill any remaining processes ─────────────────────────────────────────────
Write-Host "Killing any remaining processes..."
Get-Process | Where-Object { $_.Path -match $processPattern } |
              Stop-Process -Force -ErrorAction SilentlyContinue
Start-Sleep -Seconds 2

# ── Remove install directories (registry-reported + fallbacks) ───────────────
foreach ($dir in $installLocations) {
    if (Test-Path $dir) {
        Write-Host "Removing install directory: $dir"
        Remove-Item -Path $dir -Recurse -Force -ErrorAction SilentlyContinue
        if (Test-Path $dir) {
            Write-Warning "Directory still exists: $dir (locked files - reboot may be required)"
        }
    }
}

# ── Remove leftover AppData / config ─────────────────────────────────────────
$appDataPaths = @(
    "$env:APPDATA\ScoutIT-RemoteSupport",
    "$env:APPDATA\ScoutIT Remote Support",
    "$env:APPDATA\RustDesk",
    "$env:ProgramData\ScoutIT-RemoteSupport",
    "$env:ProgramData\ScoutIT Remote Support",
    "$env:ProgramData\RustDesk"
)
foreach ($path in $appDataPaths) {
    if (Test-Path $path) {
        Write-Host "Removing: $path"
        Remove-Item -Path $path -Recurse -Force -ErrorAction SilentlyContinue
    }
}

# ── Confirm ───────────────────────────────────────────────────────────────────
$svcRemaining = Get-Service -ErrorAction SilentlyContinue |
                Where-Object { $_.Name -match $servicePattern -or $_.DisplayName -match $servicePattern }
$regRemaining = foreach ($key in $uninstallKeys) {
    Get-ItemProperty $key -ErrorAction SilentlyContinue |
        Where-Object { $_.DisplayName -match $namePattern -or $_.Publisher -match $namePattern }
}
$dirRemaining = $installLocations | Where-Object { Test-Path $_ }

Write-Output "................................................."
if (-not $svcRemaining -and -not $regRemaining -and -not $dirRemaining) {
    Write-Output "ScoutIT Remote Support / RustDesk fully uninstalled (all versions)."
} else {
    if ($svcRemaining) { Write-Warning "Services still present: $(($svcRemaining | Select-Object -Expand Name) -join ', ')" }
    if ($regRemaining) { Write-Warning "Registry entries still present: $(($regRemaining | Select-Object -Expand DisplayName) -join ', ')" }
    if ($dirRemaining) { Write-Warning "Directories still present: $($dirRemaining -join ', ') - reboot may be required." }
}
Write-Output "................................................."

exit 0