function Invoke-FileTypeInfo {
    param (
        [string]$Folder = ".",
        [switch]$Recurse = $true
    )

    if (-not (Get-Command exiftool -ErrorAction SilentlyContinue)) {
        Write-Error "❌ exiftool no está instalado o no está en el PATH."
        return
    }

    # Mapeo de tipos reales a extensiones estándar
    $typeToExtension = @{
        "JPEG" = ".jpg"
        "PNG"  = ".png"
        "WEBP" = ".webp"
        "GIF"  = ".gif"
        "MP4"  = ".mp4"
        "MOV"  = ".mov"
    }

    $files = Get-ChildItem -Path $Folder -File -Recurse:$Recurse
    $changed = @()

    foreach ($file in $files) {
        $ext = $file.Extension.ToLower()
        $actualType = & exiftool -s3 -FileType "$($file.FullName)" 2>$null

        if ($actualType) {
            $actualType = $actualType.ToUpper()
            $actualType = $actualType.Trim()
        } else {
            continue  # Si no se puede detectar el tipo, saltamos
        }

        if ($typeToExtension.ContainsKey($actualType)) {
            $expectedExt = $typeToExtension[$actualType]

            if ($expectedExt -ne $ext) {
                # Rutas de las subcarpetas
                $tmpDir = Join-Path $file.DirectoryName "tmp"
                $badDir = Join-Path $file.DirectoryName "original_bad_extension"

                # Crear las carpetas si no existen
                foreach ($dir in @($tmpDir, $badDir)) {
                    if (-not (Test-Path $dir)) {
                        New-Item -ItemType Directory -Path $dir | Out-Null
                    }
                }

                # Crear copia corregida en carpeta tmp
                $newFileName = [System.IO.Path]::ChangeExtension($file.BaseName, $expectedExt)
                $destTmpFile = Join-Path $tmpDir $newFileName
                Copy-Item -Path $file.FullName -Destination $destTmpFile -Force
                Write-Host "✅ Copied: '$($file.Name)' -> 'tmp\$newFileName'" -ForegroundColor Green

                # Mover original a carpeta original_bad_extension
                $destBadFile = Join-Path $badDir $file.Name
                Move-Item -Path $file.FullName -Destination $destBadFile -Force
                Write-Host "📦 Moved original to: 'original_bad_extension\$($file.Name)'" -ForegroundColor Yellow

                $changed += $destTmpFile
            }
        }
    }

    Write-Host "`n📁 Procesados: $($files.Count) archivos en '$Folder'"
    if ($changed.Count -gt 0) {
        Write-Host "📌 Archivos corregidos copiados en 'tmp', originales movidos a 'original_bad_extension':"
        $changed | ForEach-Object { Write-Host "  $_" }
    } else {
        Write-Host "✔️ No se detectaron inconsistencias."
    }
}