# RulesToolkit loader. ASCII only, no BOM.
# Usage:  irm https://win.masuda.tech | iex
# Downloads RulesToolkit.ps1 as raw bytes and decodes it as UTF-8 explicitly,
# so Cyrillic text survives regardless of the Content-Type charset of the web server.
& {
    $ErrorActionPreference = 'Stop'
    try { [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12 } catch {}
    $src = 'https://rules.tool.masuda.tech/RulesToolkit.ps1'
    if ($env:RULESTOOLKIT_SRC) { $src = $env:RULESTOOLKIT_SRC }
    Write-Host "RulesToolkit: downloading $src" -ForegroundColor DarkGray
    $wc = New-Object System.Net.WebClient
    $wc.Headers['User-Agent'] = 'RulesToolkit-loader'
    $bytes = $wc.DownloadData($src)
    $code = [System.Text.Encoding]::UTF8.GetString($bytes).TrimStart([char]0xFEFF)
    if ($code -notmatch 'function Start-RulesMenu') { throw 'RulesToolkit: downloaded file is not RulesToolkit.ps1' }
    & ([scriptblock]::Create($code))
}