<#
.SCRIPTNAME
    WUC_Start.ps1

.AUTHOR
    Jere Hauhia

.VERSION
    1.0.0

.DATE
    2025-10-28

.DESCRIPTION
    Launches the Windows User Copier script and provides a menu-driven interface.
    Downloads dependencies over HTTP and supports direct execution via PowerShell.

.LICENSE
    MIT License – Free to use, modify, and distribute. No warranty provided.

.NOTES
    - Designed for use with `irm https://scr.hauhia.xyz | iex`
    - Tested on Windows 10/11 environments
    - Requires internet access and PowerShell 5.1 or later
#>

# Is admin
function Ensure-Admin {
    $isAdmin = ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)

    if (-not $isAdmin) {
        Write-Host "This script requires administrator privileges." -ForegroundColor Red
        Write-Host "Please run PowerShell as administrator." -ForegroundColor Yellow
        Write-Host "Press any key to exit..."
        $null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
        Stop-Process -Id $PID
    }
}

Ensure-Admin

# Menu
function Show-Menu {
    Clear-Host
    Write-Host "==========================================" -ForegroundColor Cyan
    Write-Host "           Windows User Copier            " -ForegroundColor Yellow
    Write-Host "==========================================" -ForegroundColor Cyan
    Write-Host ""
    Write-Host "  [1] Run Windows User Copier" -ForegroundColor Green
    Write-Host "  [2] Exit" -ForegroundColor Red
    Write-Host ""
}

# Menu loop
do {
    Show-Menu
    $choice = Read-Host "Select an option (1-2)"

    switch ($choice) {
        '1' {
            Write-Host "`nLaunching Windows User Copier..." -ForegroundColor Yellow

            # Download script
            $copierUrl = "https://scr.hauhia.xyz/WindowsUserCopier.ps1"
            $copierScript = "$env:TEMP\WindowsUserCopier.ps1"

            try {
                Invoke-WebRequest -Uri $copierUrl -OutFile $copierScript -ErrorAction Stop
                . $copierScript
            } catch {
                Write-Host "Script download failed: $_" -ForegroundColor Red
            }
        }
        '2' {
            Write-Host "`nExiting. Goodbye!" -ForegroundColor Cyan
            Start-Sleep -Seconds 3
            Stop-Process -Id $PID
        }
        default {
            Write-Host "`nInvalid selection. Please try again." -ForegroundColor Red
        }
    }
} while ($true)