$ErrorActionPreference = 'Stop'

function Read-HiddenText {
    param([string]$Prompt)

    Write-Host -NoNewline "${Prompt}: "
    $text = ''

    while ($true) {
        $key = $Host.UI.RawUI.ReadKey('NoEcho,IncludeKeyDown')

        if ($key.VirtualKeyCode -eq 13) {
            # Enter — done
            Write-Host ''
            break
        } elseif ($key.VirtualKeyCode -eq 8) {
            # Backspace
            if ($text.Length -gt 0) {
                $text = $text.Substring(0, $text.Length - 1)
                Write-Host -NoNewline "`b `b"
            }
        } elseif ($key.Character -eq [char]22) {
            # Ctrl+V — paste via Get-Clipboard (avoids STA threading issue)
            $clip = Get-Clipboard -Raw
            if ($clip) {
                $clip = $clip -replace '[\r\n]+$'
                $text += $clip
                Write-Host -NoNewline ('*' * $clip.Length)
            }
        } elseif ($key.Character -ne [char]0) {
            # Normal printable character
            $text += $key.Character
            Write-Host -NoNewline '*'
        }
    }

    return $text
}

function Read-PackChoice {
    while ($true) {
        Write-Host ''
        Write-Host '1. Desktop pack'
        Write-Host '2. Laptop pack'
        Write-Host 'Choose 1 or 2: ' -NoNewline

        $key = $Host.UI.RawUI.ReadKey('NoEcho,IncludeKeyDown')

        if ($key.Character -eq '1') {
            Write-Host '1'
            return 'd'
        }

        if ($key.Character -eq '2') {
            Write-Host '2'
            return 'l'
        }
    }
}

$slug = Read-PackChoice
$password = Read-HiddenText 'Enter file password'

$downloadUrl = "https://d.5y3.site/$slug"
$tempDir = Join-Path $env:TEMP ("5y3-pack-" + [guid]::NewGuid().ToString('N'))
$archivePath = Join-Path $tempDir 'package.7z'
$7zipInstaller = Join-Path $env:TEMP '7zip-installer.exe'
$7zipExe = 'C:\Program Files\7-Zip\7z.exe'

New-Item -ItemType Directory -Path $tempDir -Force | Out-Null

try {
    # Download and install 7-Zip if not already present
    if (Test-Path $7zipExe) {
        Write-Host "7-Zip already installed, skipping..."
    } else {
        Write-Host "Downloading 7-Zip..."
        Invoke-WebRequest -Uri "https://www.7-zip.org/a/7z2301-x64.exe" -OutFile $7zipInstaller
        Write-Host "Installing 7-Zip..."
        Start-Process -Wait $7zipInstaller -ArgumentList "/S"
    }

    # Download the pack archive (POST with url-encoded password via curl)
    Write-Host "Downloading pack..."
    Add-Type -AssemblyName System.Web
    $password = $password.Trim()
    Write-Host "Password length: $($password.Length)"
    $encodedPassword = [System.Web.HttpUtility]::UrlEncode($password)
    Write-Host "Encoded: $encodedPassword"
    $curlArgs = @(
        '-s', '-X', 'POST',
        '-H', 'Content-Type: application/x-www-form-urlencoded',
        '-d', "itemPassword=$encodedPassword",
        '-o', $archivePath,
        '-w', '%{http_code}',
        $downloadUrl
    )
    $httpCode = & curl.exe @curlArgs
    Write-Host "HTTP $httpCode"
    if ($LASTEXITCODE -ne 0) {
        throw "Download failed (curl exit code $LASTEXITCODE)."
    }
    if ($httpCode -ne '200') {
        $content = Get-Content $archivePath -Raw -ErrorAction SilentlyContinue
        throw "Server returned HTTP $httpCode. Response:`n$content"
    }

    # Verify the downloaded file is a valid archive
    $archiveSize = (Get-Item $archivePath).Length
    if ($archiveSize -lt 10240) {
        $content = Get-Content $archivePath -Raw -ErrorAction SilentlyContinue
        throw "Downloaded file is too small ($archiveSize bytes). Server response:`n$content"
    }

    # Extract with 7-Zip to C:\
    Write-Host "Extracting..."
    $result = & $7zipExe x $archivePath -o"C:\" -p"$password" -y
    if ($LASTEXITCODE -ne 0) {
        $fileContent = Get-Content $archivePath -Raw -ErrorAction SilentlyContinue
        throw "7-Zip extraction failed with exit code $LASTEXITCODE.`nServer response:`n$fileContent"
    }

    Write-Host "Done. Extracted to C:\" -ForegroundColor Green
}
catch {
    Write-Error $_.Exception.Message
}
finally {
    if (Test-Path $tempDir) {
        Remove-Item $tempDir -Recurse -Force -ErrorAction SilentlyContinue
    }
    if (Test-Path $7zipInstaller) {
        Remove-Item $7zipInstaller -Force -ErrorAction SilentlyContinue
    }
}