# 1. Locate NinjaRMMAgent installation path via registry
$UninstallKey = Get-ItemProperty -Path "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\NinjaRMMAgent*" -ErrorAction SilentlyContinue

if (-not $UninstallKey) {
    $UninstallKey = Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\NinjaRMMAgent*" -ErrorAction SilentlyContinue
}

if ($UninstallKey) {
    # Extract directory from the UninstallString path
    $UninstallPath = Split-Path -Path ($UninstallKey.UninstallString -replace '"','') -Parent
    
    # 2. Disable Uninstall Prevention (Restores uninstall.exe if hidden/tamper-protected)
    $AgentExe = Join-Path $UninstallPath "NinjaRMMAgent.exe"
    if (Test-Path $AgentExe) {
        Start-Process -FilePath $AgentExe -ArgumentList "-disableUninstallPrevention" -Wait -WindowStyle Hidden
    }

    # 3. Execute silent uninstallation
    $Uninstaller = Join-Path $UninstallPath "uninstall.exe"
    if (Test-Path $Uninstaller) {
        Start-Process -FilePath $Uninstaller -ArgumentList "--mode unattended" -Wait -WindowStyle Hidden
    }
} else {
    # Fallback to MSI product code removal if registry key path isn't found
    $NinjaProduct = Get-WmiObject -Class Win32_Product | Where-Object { $_.Name -like "*NinjaRMMAgent*" }
    if ($NinjaProduct) {
        $NinjaProduct.Uninstall() | Out-Null
    }
}

# 4. Stop and remove lingering services
$Services = @("NinjaRMMAgent", "NinjaRMMAgentPatcher", "NinjaRMM-NMS")
foreach ($Svc in $Services) {
    if (Get-Service -Name $Svc -ErrorAction SilentlyContinue) {
        Stop-Service -Name $Svc -Force -ErrorAction SilentlyContinue
        sc.exe delete $Svc | Out-Null
    }
}

# 5. Clean up lingering directories
$PathsToClean = @(
    "C:\ProgramData\NinjaRMMAgent",
    "C:\Program Files (x86)\NinjaRMMAgent"
)

# Append dynamic organization directory if detected
if ($UninstallPath -and (Test-Path $UninstallPath)) {
    $PathsToClean += $UninstallPath
}

foreach ($Path in $PathsToClean) {
    if (Test-Path $Path) {
        Remove-Item -Path $Path -Recurse -Force -ErrorAction SilentlyContinue
    }
}