# montar_nas.ps1 - Monta la unidad Z: (share \video de la NAS Synology 192.168.50.31)
# via tunel SSH encadenado: PC -> VPS(185.187.169.109) -> Pi(tunel inverso 1445) -> NAS
#
# Requisitos:
#  - Clave SSH del VPS en C:\Users\juanm\Documents\GitHub\contabo
#  - Servicio autossh-tunel en la Pi con -R 1445:192.168.50.31:445
#  - Credencial SMB guardada con:  cmdkey /add:127.0.0.1 /user:jjminguez /pass:"<pass>"
#
# Uso:  powershell -File montar_nas.ps1

$ErrorActionPreference = "SilentlyContinue"

function Test-Tunel {
    $c = Get-NetTCPConnection -LocalPort 445 -State Listen -ErrorAction SilentlyContinue
    return ($null -ne $c)
}

function Test-Unidad {
    $d = Get-PSDrive -Name Z -ErrorAction SilentlyContinue
    return ($null -ne $d)
}

# 1) Levantar tunel local (445 -> VPS:1445 -> Pi -> NAS:445)
if (-not (Test-Tunel)) {
    Write-Host "[NAS] Levantando tunel 445 -> VPS:1445..."
    Start-Process -FilePath "ssh" -ArgumentList `
        "-i", "C:\Users\juanm\Documents\GitHub\contabo", `
        "-N", "-L", "445:127.0.0.1:1445", `
        "root@185.187.169.109", `
        "-o", "ExitOnForwardFailure=yes", `
        "-o", "ServerAliveInterval=30", `
        "-o", "ServerAliveCountMax=3" `
        -WindowStyle Hidden | Out-Null
    Start-Sleep -Seconds 5
}

# 2) Montar unidad Z: apuntando al share video (via tunel local)
if (-not (Test-Unidad)) {
    Write-Host "[NAS] Montando Z: -> \\127.0.0.1\video ..."
    net use Z: \\127.0.0.1\video /persistent:no | Out-Null
}

# 3) Verificar
if (Test-Unidad) {
    $n = (Get-ChildItem "Z:\" -ErrorAction SilentlyContinue | Measure-Object).Count
    Write-Host "[NAS] Unidad Z: montada OK ($n elementos)"
} else {
    Write-Host "[NAS] ERROR: no se pudo montar Z:"
}