$ErrorActionPreference = 'Stop'

function Test-IsAdministrator {
    $identity = [Security.Principal.WindowsIdentity]::GetCurrent()
    $principal = New-Object Security.Principal.WindowsPrincipal($identity)

    return $principal.IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
}

function Restart-ElevatedIfNeeded {
    if (Test-IsAdministrator) {
        return
    }

    Write-Host 'Requesting administrator privileges...' -ForegroundColor Yellow

    $scriptText = $MyInvocation.MyCommand.Definition
    if ([string]::IsNullOrWhiteSpace($scriptText)) {
        throw 'Unable to relaunch this script with elevation.'
    }

    $encodedCommand = [Convert]::ToBase64String(
        [Text.Encoding]::Unicode.GetBytes($scriptText)
    )

    Start-Process -FilePath 'powershell.exe' -Verb RunAs -ArgumentList @(
        '-NoProfile',
        '-ExecutionPolicy', 'Bypass',
        '-EncodedCommand', $encodedCommand
    ) | Out-Null

    exit
}

function Invoke-RemoteScript {
    param(
        [Parameter(Mandatory = $true)]
        [string] $Url
    )

    Write-Host "Running $Url" -ForegroundColor Cyan
    Invoke-RestMethod -Uri $Url | Invoke-Expression
}

function Show-RobotBanner {
    Write-Host '      .----.      ' -ForegroundColor Cyan
    Write-Host '    _/ .--. \_    ' -ForegroundColor Cyan
    Write-Host '   /_  |[]|  _\   ' -ForegroundColor Cyan
    Write-Host '  |  | |  | |  |  ' -ForegroundColor Cyan
    Write-Host '  |  |_|__|_|  |  ' -ForegroundColor Cyan
    Write-Host '  |   __  __   |  ' -ForegroundColor Cyan
    Write-Host '  |__|  ||  |__|  ' -ForegroundColor Cyan
    Write-Host ' /___/ /__\ \___\ ' -ForegroundColor Cyan
    Write-Host ''
}

function Open-Url {
    param(
        [Parameter(Mandatory = $true)]
        [string] $Url
    )

    Write-Host "Opening $Url" -ForegroundColor Cyan
    Start-Process $Url | Out-Null
}

Restart-ElevatedIfNeeded

while ($true) {
    Write-Host ''
    Show-RobotBanner
    Write-Host 'Use at your own risk. You are responsible for reviewing and choosing what to run.' -ForegroundColor Yellow
    Write-Host 'Choose an option:' -ForegroundColor Green
    Write-Host '1. Windows Tweaks'
    Write-Host '2. Activate Things'
    Write-Host '3. Free Candy'
    Write-Host 'Q. Quit'
    Write-Host ''

    $choice = (Read-Host 'Selection').Trim().ToUpperInvariant()

    switch ($choice) {
        '1' {
            Invoke-RemoteScript -Url 'https://christitus.com/win'
            break
        }
        '2' {
            Invoke-RemoteScript -Url 'https://get.activated.win'
            break
        }
        '3' {
            Open-Url -Url 'https://www.youtube.com/watch?v=dQw4w9WgXcQ'
            break
        }
        'Q' {
            Write-Host 'Cancelled.'
            break
        }
        default {
            Write-Host 'Please choose 1, 2, 3, or Q.' -ForegroundColor Yellow
        }
    }
}