# Pabimatic v1-0 - lanzador web para Windows PowerShell 5.1.
# Descarga el paquete, verifica SHA-256 y abre la interfaz; no aplica limpieza.
& {
    Set-StrictMode -Version 2.0
    $ErrorActionPreference = 'Stop'
    if ($env:OS -ne 'Windows_NT') { throw 'Pabimatic requiere Windows.' }
    if ($PSVersionTable.PSVersion -lt [version]'5.1') { throw 'Se requiere PowerShell 5.1 o posterior para descargar el paquete.' }
    $expectedHash = '204d4189b695a0a35559c1c3294397670669e233a73e151ec4b7662c4174676f'
    $packageUrl = 'https://get.unionobreroscoatza.com.mx/Pabimatic-v1-0.zip?sha256=' + $expectedHash
    $work = Join-Path $env:LOCALAPPDATA ('Pabimatic\Descargas\' + [guid]::NewGuid().ToString('N'))
    $oldTls = [Net.ServicePointManager]::SecurityProtocol
    try {
        Write-Host ''
        Write-Host 'Pabimatic' -ForegroundColor Cyan
        Write-Host 'Para Pc | elige, revisa y aplica | v1-0'
        Write-Host ''
        Write-Host '[1/4] Preparando la descarga...'
        New-Item -ItemType Directory -Path $work -Force | Out-Null
        $zipPath = Join-Path $work 'Pabimatic-v1-0.zip'
        [Net.ServicePointManager]::SecurityProtocol = $oldTls -bor [Net.SecurityProtocolType]::Tls12
        Invoke-WebRequest -Uri $packageUrl -UseBasicParsing -OutFile $zipPath -TimeoutSec 180
        Write-Host '[2/4] Verificando la integridad del paquete...'
        $actualHash = (Get-FileHash -LiteralPath $zipPath -Algorithm SHA256).Hash
        if ($actualHash -ne $expectedHash) {
            throw 'El archivo descargado no coincide con el paquete publicado. No se ejecutara.'
        }
        Add-Type -AssemblyName System.IO.Compression.FileSystem
        $expectedEntries = @(
            'Pabimatic/ABRIR.cmd',
            'Pabimatic/Base-Windows.ps1',
            'Pabimatic/Catalogo.ps1',
            'Pabimatic/LEEME.txt',
            'Pabimatic/Motor.ps1'
        )
        $archive = [IO.Compression.ZipFile]::OpenRead($zipPath)
        try {
            if ($archive.Entries.Count -ne $expectedEntries.Count) { throw 'Estructura inesperada del paquete.' }
            $seen = New-Object 'System.Collections.Generic.HashSet[string]'
            foreach ($entry in $archive.Entries) {
                if ($expectedEntries -cnotcontains $entry.FullName -or -not $seen.Add($entry.FullName)) {
                    throw 'El paquete contiene una ruta inesperada o duplicada.'
                }
            }
        } finally { $archive.Dispose() }
        Write-Host '[3/4] Extrayendo Pabimatic...'
        $destination = Join-Path $work 'Programa'
        Expand-Archive -LiteralPath $zipPath -DestinationPath $destination -ErrorAction Stop
        $main = Join-Path $destination 'Pabimatic\Base-Windows.ps1'
        if (-not (Test-Path -LiteralPath $main -PathType Leaf)) { throw 'No se encontro el programa principal.' }
        $psExe = Join-Path $env:SystemRoot 'System32\WindowsPowerShell\v1.0\powershell.exe'
        if ([Environment]::Is64BitOperatingSystem -and -not [Environment]::Is64BitProcess) {
            $psExe = Join-Path $env:SystemRoot 'Sysnative\WindowsPowerShell\v1.0\powershell.exe'
        }
        if (-not (Test-Path -LiteralPath $psExe)) { throw 'No se encontro Windows PowerShell.' }
        Write-Host '[4/4] Abriendo la ventana...'
        $process = Start-Process -FilePath $psExe -ArgumentList @('-NoLogo','-NoProfile','-STA','-ExecutionPolicy','Bypass','-File',('"' + $main + '"')) -PassThru
        Write-Host 'Pabimatic se esta iniciando. Comienza con Revisar cambios.' -ForegroundColor Green
        Write-Host ('Archivos descargados en: ' + $work)
        $process.Dispose()
    } catch {
        Write-Host ('No se pudo iniciar Pabimatic: ' + $_.Exception.Message) -ForegroundColor Red
        throw
    } finally {
        [Net.ServicePointManager]::SecurityProtocol = $oldTls
    }
}