Imports System.IO
Imports System.Text.RegularExpressions

Public Class Ficheros
    Public Shared Function FicheroAArrayBytes(ByVal RutaFichero As String) As Byte()
        Return IO.File.ReadAllBytes(RutaFichero)
        'FicheroAArrayBytes = Nothing
        'Try
        '    Dim fstmp As IO.FileStream, by() As Byte
        '    fstmp = IO.File.OpenRead(RutaFichero)
        '    ReDim by(fstmp.Length - 1)
        '    fstmp.Read(by, 0, fstmp.Length)
        '    fstmp.Close()
        '    FicheroAArrayBytes = by
        'Catch ex As Exception
        '    Throw New Exception(ex.Message, ex)
        'End Try
    End Function
    Public Shared Function FicheroAString(ByVal RutaFichero As String) As String
        Dim s As String
        Dim tr As IO.TextReader = New IO.StreamReader(RutaFichero)
        s = tr.ReadToEnd
        Return s
    End Function
    Public Shared Sub ByteArrayAFichero(Datos() As Byte, NombreFichero As String, Optional Sobreescribir As Boolean = False)
        If Not IO.Directory.Exists(IO.Path.GetDirectoryName(NombreFichero)) Then Utilidades.CreaEstructuraDirectorio(IO.Path.GetDirectoryName(NombreFichero))
        If IO.File.Exists(NombreFichero) And Sobreescribir Then IO.File.Delete(NombreFichero)
        Dim oFileStream As System.IO.FileStream
        oFileStream = New System.IO.FileStream(NombreFichero, System.IO.FileMode.Create)
        oFileStream.Write(Datos, 0, Datos.Length)
        oFileStream.Close()
    End Sub


    Public Shared Sub EliminaCaracteresInvalidosXML(FicheroOrigen As String, FicheroDestino As String)
        Dim reader As TextReader = New StreamReader(FicheroOrigen)
        Dim writer As TextWriter = New StreamWriter([FicheroDestino])
        Dim linea As String = reader.ReadLine
        Do Until linea Is Nothing
            writer.WriteLine(CleanInvalidXmlChars(linea))
            linea = reader.ReadLine
        Loop
        writer.WriteLine(CleanInvalidXmlChars(reader.ReadToEnd()))
        writer.Flush()
        reader.Close()
        writer.Close()
    End Sub

    Public Shared Sub EliminaCaracteresInvalidosXML(stOrigen As Stream, stDestino As Stream)
        Dim reader As TextReader = New StreamReader(stOrigen)
        Dim writer As TextWriter = New StreamWriter(stDestino)
        Dim linea As String = reader.ReadLine
        Do Until linea Is Nothing
            writer.WriteLine(CleanInvalidXmlChars(linea))
            linea = reader.ReadLine
        Loop
        writer.WriteLine(CleanInvalidXmlChars(reader.ReadToEnd()))
        writer.Flush()
        reader.Close()
        '  writer.Close()
        stDestino.Position = 0
    End Sub


    Public Shared Function CleanInvalidXmlChars(text As String) As String
        Dim re As String = "[^\x09\x0A\x0D\x20-\xD7FF\xE000-\xFFFD\x10000-x10FFFF]"
        Return Regex.Replace(text, re, "")
    End Function

    Public Shared Sub ObtieneFicherosRecursivo(ByVal Ruta As String, ByRef Ficheros() As String, OmitirErrores As Boolean)
        Dim sFicheros() As String = IO.Directory.GetFiles(Ruta)
        Dim iNumeroFicheros As Integer
        If Not IsNothing(Ficheros) Then iNumeroFicheros = Ficheros.Length
        ReDim Preserve Ficheros(sFicheros.Length - 1 + iNumeroFicheros)
        sFicheros.CopyTo(Ficheros, iNumeroFicheros)
        Dim sDirectorio, sDirectorios() As String
        Try
            sDirectorios = IO.Directory.GetDirectories(Ruta)
            For Each sDirectorio In sDirectorios
                Try
                    ObtieneFicherosRecursivo(sDirectorio, Ficheros, OmitirErrores)
                Catch ex As Exception
                    If Not OmitirErrores Then
                        Throw New Exception(ex.Message, ex)
                    End If
                End Try
            Next
        Catch ex As Exception
            If Not OmitirErrores Then
                Throw New Exception(ex.Message, ex)
            End If

        End Try
    End Sub
    Public Shared Sub EliminaDirectorio(Directorio As String, OmitirErrores As Boolean)
        Dim dirs = IO.Directory.GetDirectories(Directorio)
        For Each carpeta In dirs
            Try
                IO.Directory.Delete(carpeta, True)
            Catch ex As Exception
                If Not OmitirErrores Then
                    Throw New Exception(ex.Message, ex)
                End If
            End Try
        Next
        Dim sFicheros() As String = Nothing
        ObtieneFicherosRecursivo(Directorio, sFicheros, OmitirErrores)
        For Each f In sFicheros
            Try
                IO.File.Delete(f)
            Catch ex As Exception
                If Not OmitirErrores Then
                    Throw New Exception(ex.Message, ex)
                End If
            End Try
        Next
    End Sub
    Public Shared Sub EliminaFicherosTemporales()
        Dim tempfolder As String = Path.GetTempPath()
        EliminaDirectorio(tempfolder, True)
    End Sub
End Class