Imports System.IO
Imports DevExpress.LookAndFeel
Imports DevExpress.Utils.Extensions
Imports DevExpress.XtraCharts
Imports DevExpress.XtraGrid
Imports DevExpress.XtraGrid.Views.Grid
Imports DevExpress.XtraSplashScreen
Imports DigitalData.GUIs.Common
Imports DigitalData.Modules.Base
Imports DigitalData.Modules.Logging
Imports EnvelopeGenerator.Common
Imports EnvelopeGenerator.Common.My

Public Class frmMain
    Private ReadOnly LogConfig As LogConfig
    Private ReadOnly Logger As Logger
    Private TempFiles As TempFiles
    Private GridBuilder As GridBuilder
    Private RefreshHelper As RefreshHelper

    Private State As State
    Private Controller As EnvelopeListController
    Private myFileData As Byte()
    Private myResFileData As Byte()

    Public Sub New(pState As State)
        ' Dieser Aufruf ist für den Designer erforderlich.
        InitializeComponent()

        ' Fügen Sie Initialisierungen nach dem InitializeComponent()-Aufruf hinzu.
        State = pState
        LogConfig = pState.LogConfig
        Logger = LogConfig.GetLogger()
    End Sub

    Private Sub frmMain_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Text = $"{State.DbConfig.ExternalProgramName} - {Resources.Envelope.Envelope_Overview}"

        TempFiles = New TempFiles(LogConfig)
        TempFiles.Create()

        RefreshHelper = New RefreshHelper(ViewEnvelopes, "Id")

        Controller = New EnvelopeListController(State)
        Try
            Me.LookAndFeel.UseDefaultLookAndFeel = False
            LookAndFeel.SetSkinStyle(SkinStyle.Office2019Colorful, SkinSvgPalette.DefaultSkin)
        Catch ex As Exception

        End Try

        LoadEnvelopeData()
    End Sub

    Private Sub LoadEnvelopeData()
        Try
            RefreshHelper.SaveViewInfo()
            LoadEnvelopes()
            LoadCompletedEnvelopes()
            RefreshHelper.LoadViewInfo()

            'LoadCharts()
            txtRefreshLabel.Caption = String.Format(txtRefreshLabel.Tag, Now)
        Catch ex As Exception
            Logger.Error(ex)
        End Try
    End Sub

    Private Sub LoadEnvelopes()
        Try
            GridBuilder = New GridBuilder(ViewEnvelopes)
            GridBuilder.SetReadOnlyOptions(ViewEnvelopes)

            GridBuilder.SetReadOnlyOptions(ViewHistory)
            GridBuilder.SetDefaults(ViewHistory)

            GridEnvelopes.DataSource = Controller.ListEnvelopes()
        Catch ex As Exception
            Logger.Error(ex)
        End Try
    End Sub

    Private Sub LoadCompletedEnvelopes()
        Try
            GridBuilder = New GridBuilder(ViewCompleted)
            GridBuilder.SetReadOnlyOptions(ViewCompleted)

            GridBuilder.SetReadOnlyOptions(ViewHistoryCompleted)
            GridBuilder.SetDefaults(ViewHistoryCompleted)

            GridCompleted.DataSource = Controller.ListCompleted()
        Catch ex As Exception
            Logger.Error(ex)
        End Try
    End Sub

    Private Sub LoadCharts()
        Dim oChartControl As ChartControl = Controller.GetPieChart()
        Me.SplitContainerControl1.Panel2.AddControl(oChartControl)
    End Sub

    Private Sub btnCreateEnvelope_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles btnCreateEnvelope.ItemClick
        Dim oHandle = SplashScreenManager.ShowOverlayForm(Me)
        Try
            Dim oForm As New frmEnvelopeEditor() With {.State = State}
            oForm.ShowDialog()
            LoadEnvelopeData()

        Catch ex As Exception
            Logger.Error(ex)
        Finally
            SplashScreenManager.CloseOverlayForm(oHandle)
        End Try
    End Sub

    Private Sub btnEditEnvelope_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles btnEditEnvelope.ItemClick
        Dim oSelectedRows = ViewEnvelopes.GetSelectedRows()
        If oSelectedRows.Count > 0 Then
            LoadEnvelope(oSelectedRows.First)
        End If
    End Sub

    Private Sub LoadEnvelope(pRowHandle As Integer)
        Dim oHandle = SplashScreenManager.ShowOverlayForm(Me)
        Try
            Dim oEnvelope As Envelope = DirectCast(ViewEnvelopes.GetRow(pRowHandle), Envelope)

            If oEnvelope.IsAlreadySent Then
                Exit Sub
            End If

            Dim oForm As New frmEnvelopeEditor() With {.State = State, .Envelope = oEnvelope}
            oForm.ShowDialog()
            LoadEnvelopeData()

        Catch ex As Exception
            Logger.Error(ex)
        Finally
            SplashScreenManager.CloseOverlayForm(oHandle)
        End Try
    End Sub

    Private Sub DeleteEnvelope(pRowHandle As Integer, pReason As String)
        Dim oEnvelope As Envelope = ViewEnvelopes.GetRow(pRowHandle)

        'If MsgBox(Resources.Envelope.Do_you_really_want_to_delete_this_envelope, MsgBoxStyle.Question Or MsgBoxStyle.YesNo, Text) = MsgBoxResult.No Then
        '    Exit Sub
        'End If

        If Controller.DeleteEnvelope(oEnvelope, pReason) Then
            LoadEnvelopeData()
        Else
            MsgBox(Resources.Envelope.The_envelope_could_not_be_deleted, MsgBoxStyle.Critical, Text)
        End If
    End Sub

    Private Sub ViewEnvelopes_DoubleClick(sender As Object, e As EventArgs) Handles ViewEnvelopes.DoubleClick
        Dim oSelectedRows = ViewEnvelopes.GetSelectedRows()
        If oSelectedRows.Count > 0 Then
            LoadEnvelope(oSelectedRows.First)
        End If
    End Sub

    Private Sub btnDeleteEnvelope_ItemClick_1(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles btnDeleteEnvelope.ItemClick
        Try
            Dim oSelectedRows = ViewEnvelopes.GetSelectedRows()
            If oSelectedRows.Count > 0 Then
                Dim ofrmAbort As New frmRueckruf
                frmRueckruf.ShowDialog()
                If frmRueckruf.Continue_Reject = True Then
                    DeleteEnvelope(oSelectedRows.First, frmRueckruf.Reject_reason)
                End If

            End If
        Catch ex As Exception
            MsgBox(ex.Message, MsgBoxStyle.Critical)
        End Try

    End Sub

    Private Sub frmMain_FormClosing(sender As Object, e As FormClosingEventArgs) Handles MyBase.FormClosing
        ' Cleanup Methods
        TempFiles.CleanUp()
    End Sub

    Private Sub XtraTabControl1_SelectedPageChanged(sender As Object, e As DevExpress.XtraTab.TabPageChangedEventArgs) Handles XtraTabControl1.SelectedPageChanged
        Select Case XtraTabControl1.SelectedTabPageIndex
            Case 1
                btnEditEnvelope.Enabled = False
                btnDeleteEnvelope.Enabled = False
                btnContactReceiver.Enabled = False
                btnShowDocument.Enabled = False
                bbtnitmEB.Enabled = True
            Case 0
                btnEditEnvelope.Enabled = True
                btnDeleteEnvelope.Enabled = True
                btnContactReceiver.Enabled = True
                btnShowDocument.Enabled = True
                bbtnitmEB.Enabled = False
        End Select
    End Sub

    Private Sub BarButtonItem1_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles BarButtonItem1.ItemClick
        LoadEnvelopeData()
    End Sub

    Private Sub ViewEnvelopes_FocusedRowChanged(sender As Object, e As DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs) Handles ViewEnvelopes.FocusedRowChanged
        If ViewEnvelopes.FocusedRowHandle < 0 Then
            Exit Sub
        End If

        Dim oEnvelope As Envelope = ViewEnvelopes.GetRow(ViewEnvelopes.FocusedRowHandle)

        txtEnvelopeIdLabel.Caption = String.Format(txtEnvelopeIdLabel.Tag, oEnvelope.Id)

        If oEnvelope.IsAlreadySent Then
            btnEditEnvelope.Enabled = False
        Else
            btnEditEnvelope.Enabled = True
        End If
    End Sub
    Private Sub bbtnitmEB_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles bbtnitmEB.ItemClick
        If ViewEnvelopes.FocusedRowHandle < 0 Then
            Exit Sub
        End If
        Me.Cursor = Cursors.WaitCursor
        Dim oEnvelope As Envelope = ViewCompleted.GetRow(ViewCompleted.FocusedRowHandle)
        GetResRepFileStreamByte(oEnvelope.Id)
        Dim oTempFolder = TempFiles.TempPath
        Dim oTempFilename = String.Concat(oTempFolder, "\", $"ViewEnvResReport_{oEnvelope.Id}.pdf")
        If File.Exists(oTempFilename) Then
            Try
                File.OpenWrite(oTempFilename)
            Catch ex As Exception
                MsgBox("File might already be open?", MsgBoxStyle.Exclamation)
                Exit Sub
            End Try


            File.Delete(oTempFilename)
        End If
        downloadResFile(oTempFilename)
        Me.Cursor = Cursors.Default
    End Sub
    Private Sub ViewEnvelopes_CustomDrawCell(sender As Object, e As DevExpress.XtraGrid.Views.Base.RowCellCustomDrawEventArgs) Handles ViewEnvelopes.CustomDrawCell
        If e.RowHandle < 0 Or XtraTabControl1.SelectedTabPageIndex = 1 Then
            Exit Sub
        End If

        Dim oEnvelope As Envelope = ViewEnvelopes.GetRow(e.RowHandle)
        If oEnvelope.Status = Common.Constants.EnvelopeStatus.EnvelopePartlySigned Then
            e.Appearance.BackColor = ColorTranslator.FromHtml(Common.Constants.GREEN_300)
        End If

        If oEnvelope.Status = Common.Constants.EnvelopeStatus.EnvelopeQueued Or oEnvelope.Status = Common.Constants.EnvelopeStatus.EnvelopeSent Then
            e.Appearance.BackColor = ColorTranslator.FromHtml(Common.Constants.ORANGE_300)
        End If
    End Sub

    Private Sub ViewReceivers_CustomDrawCell(sender As Object, e As DevExpress.XtraGrid.Views.Base.RowCellCustomDrawEventArgs) Handles ViewReceivers.CustomDrawCell
        If e.RowHandle < 0 Then
            Exit Sub
        End If

        Dim oView As GridView = DirectCast(sender, GridView)
        Dim oReceiver As EnvelopeReceiver = oView.GetRow(e.RowHandle)

        If (oReceiver Is Nothing) Then
            Exit Sub
        End If

        If oReceiver.Status = Common.Constants.ReceiverStatus.Signed Then
            e.Appearance.BackColor = ColorTranslator.FromHtml(Common.Constants.GREEN_300)
        Else
            e.Appearance.BackColor = ColorTranslator.FromHtml(Common.Constants.RED_300)
        End If
    End Sub

    Private Sub ViewCompleted_CustomDrawCell(sender As Object, e As Views.Base.RowCellCustomDrawEventArgs) Handles ViewCompleted.CustomDrawCell
        If e.RowHandle < 0 Then
            Exit Sub
        End If

        Dim oEnvelope As Envelope = ViewCompleted.GetRow(e.RowHandle)
        If oEnvelope.Status = Common.Constants.EnvelopeStatus.EnvelopeCompletelySigned Then
            e.Appearance.BackColor = ColorTranslator.FromHtml(Common.Constants.GREEN_300)
        End If

        If oEnvelope.Status = Common.Constants.EnvelopeStatus.EnvelopeDeleted Then
            e.Appearance.BackColor = ColorTranslator.FromHtml(Common.Constants.RED_300)
        End If
    End Sub

    Private Sub ViewReceiversCompleted_CustomDrawCell(sender As Object, e As Views.Base.RowCellCustomDrawEventArgs) Handles ViewReceiversCompleted.CustomDrawCell
        If e.RowHandle < 0 Then
            Exit Sub
        End If

        Dim oView As GridView = DirectCast(sender, GridView)
        Dim oReceiver As EnvelopeReceiver = oView.GetRow(e.RowHandle)

        If (oReceiver Is Nothing) Then
            Exit Sub
        End If

        If oReceiver.Status = Common.Constants.ReceiverStatus.Signed Then
            e.Appearance.BackColor = ColorTranslator.FromHtml(Common.Constants.GREEN_300)
        Else
            e.Appearance.BackColor = ColorTranslator.FromHtml(Common.Constants.RED_300)
        End If
    End Sub

    Private Sub RefreshTimer_Tick(sender As Object, e As EventArgs) Handles RefreshTimer.Tick
        Try

            If Application.OpenForms.OfType(Of frmEnvelopeEditor).Any = False Then
                LoadEnvelopeData()
            End If
        Catch ex As Exception
            Logger.Error(ex)
        End Try
    End Sub

    Private Sub btnContactReceiver_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles btnContactReceiver.ItemClick
        If ViewEnvelopes.FocusedRowHandle < 0 Then
            Exit Sub
        End If

        Dim oEnvelope As Envelope = ViewEnvelopes.GetRow(ViewEnvelopes.FocusedRowHandle)
        Dim oView As GridView = GridEnvelopes.FocusedView
        If oView.Name = ViewReceivers.Name Then
            Dim oReceiver As EnvelopeReceiver = oView.GetRow(oView.FocusedRowHandle)
            Dim oEnvelopeTitle As String = Net.WebUtility.UrlEncode(oEnvelope.Title)
            Process.Start($"mailto:{oReceiver.Email}?subject={oEnvelopeTitle}")
        Else
            MsgBox(Resources.Envelope.Please_select_a_recipient_from_the_Recipients_tab, MsgBoxStyle.Information, Text)
        End If
    End Sub

    Private Sub btnShowDocument_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles btnShowDocument.ItemClick
        Try
            If ViewEnvelopes.FocusedRowHandle < 0 Then
                Exit Sub
            End If
            Me.Cursor = Cursors.WaitCursor
            Dim oEnvelope As Envelope = ViewEnvelopes.GetRow(ViewEnvelopes.FocusedRowHandle)
            Dim oDocument = oEnvelope.Documents.FirstOrDefault()
            If oDocument Is Nothing Then
                MsgBox(Resources.Envelope.The_envelope_does_not_contain_any_documents, MsgBoxStyle.Exclamation, Text)
                Me.Cursor = Cursors.Default
                Exit Sub
            Else
                If Not IsNothing(oDocument.Byte_Data) Then
                    Dim oTempFolder = TempFiles.TempPath
                    Dim oTempFilename = String.Concat(oTempFolder, "\", $"ViewEnvDoc_{oEnvelope.Id}.pdf")
                    If File.Exists(oTempFilename) Then
                        Try
                            File.OpenWrite(oTempFilename)
                        Catch ex As Exception
                            MsgBox("File might already be open?", MsgBoxStyle.Exclamation)
                            Me.Cursor = Cursors.Default
                            Exit Sub
                        End Try


                        File.Delete(oTempFilename)
                    End If
                    downloadFile(oTempFilename, oDocument.Byte_Data)
                End If
            End If
        Catch ex As Exception
            MsgBox(Resources.Envelope.Document_could_not_be_opened, MsgBoxStyle.Critical, Text)
        Logger.Error(ex)
        End Try
        Me.Cursor = Cursors.Default
    End Sub
    'Private Sub GetFileStreamByte(ByVal pEnvID As Long)

    '    Dim strSql As String
    '    'For Document
    '    Try
    '        'Get image data from gridview column. 
    '        strSql = "Select [DOC1] from [TBSIG_ENVELOPE] WHERE GUID =" & pEnvID
    '        'Get image data from DB
    '        Dim fileData As Byte() = DirectCast(DB_DD_ECM.GetScalarValue(strSql), Byte())
    '        If Not fileData Is Nothing Then
    '            myFileData = fileData
    '        Else
    '            myFileData = Nothing
    '        End If

    '    Catch ex As Exception
    '        MsgBox(ex.Message, MsgBoxStyle.Exclamation, "Error in GetFileStreamByte")
    '        myFileData = Nothing
    '    End Try

    'End Sub
    Private Sub GetResRepFileStreamByte(ByVal pEnvID As Long)

        Dim strSql As String
        'For Document
        Try
            'Get image data from gridview column. 
            strSql = "Select [DOC_RESULT] from [TBSIG_ENVELOPE] WHERE GUID = " & pEnvID
            Dim obyteDB = DB_DD_ECM.GetScalarValue(strSql)
            If Not IsDBNull(obyteDB) Then
                'Get image data from DB
                Dim fileData As Byte() = DirectCast(DB_DD_ECM.GetScalarValue(strSql), Byte())
                If Not fileData Is Nothing Then
                    myResFileData = fileData
                Else
                    myResFileData = Nothing
                End If
            Else
                myResFileData = Nothing
            End If


        Catch ex As Exception
            MsgBox(ex.Message, MsgBoxStyle.Exclamation, "Error in GetResRepFileStreamByte")
            myResFileData = Nothing
        End Try

    End Sub
    Private Sub downloadFile(ByVal sFileName As String, pByte As Byte())

        'For Document
        Try
            If Not pByte Is Nothing Then
                'Read image data into a file stream 
                Using fs As New FileStream(sFileName, FileMode.OpenOrCreate, FileAccess.Write)
                    fs.Write(pByte, 0, pByte.Length)
                    'Set image variable value using memory stream. 
                    fs.Flush()
                    fs.Close()
                End Using
                'Open File
                Process.Start(sFileName)
            End If
        Catch ex As Exception
            MsgBox(ex.Message, MsgBoxStyle.Exclamation, "Error in downloadFile")
        End Try
    End Sub
    Private Sub downloadResFile(ByVal sFileName As String)

        Dim strSql As String
        'For Document
        Try
            If Not myResFileData Is Nothing Then
                'Read image data into a file stream 
                Using fs As New FileStream(sFileName, FileMode.OpenOrCreate, FileAccess.Write)
                    fs.Write(myResFileData, 0, myResFileData.Length)
                    'Set image variable value using memory stream. 
                    fs.Flush()
                    fs.Close()
                End Using
                'Open File
                Process.Start(sFileName)
            Else
                MsgBox("Could not get DocData from Database!", MsgBoxStyle.Exclamation, "Error in downloadResFile")
            End If
        Catch ex As Exception
            MsgBox(ex.Message, MsgBoxStyle.Exclamation, "Error in downloadResFile")
        End Try
    End Sub
    Private Sub ViewCompleted_FocusedRowChanged(sender As Object, e As Views.Base.FocusedRowChangedEventArgs) Handles ViewCompleted.FocusedRowChanged
        If ViewCompleted.FocusedRowHandle < 0 Then
            Exit Sub
        End If

        Dim oEnvelope As Envelope = ViewCompleted.GetRow(ViewCompleted.FocusedRowHandle)
        If oEnvelope.Status = Common.Constants.EnvelopeStatus.EnvelopeArchived Then
            bbtnitmEB.Enabled = True
        Else
            bbtnitmEB.Enabled = False
        End If
        txtEnvelopeIdLabel.Caption = String.Format(txtEnvelopeIdLabel.Tag, oEnvelope.Id)
    End Sub

    Private Sub btnOpenLogDirectory_ItemClick(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles btnOpenLogDirectory.ItemClick
        Try
            Process.Start(LogConfig.LogDirectory)
        Catch ex As Exception
            Logger.Error(ex)
        End Try
    End Sub

    Private Sub BarCheckItem1_CheckedChanged(sender As Object, e As DevExpress.XtraBars.ItemClickEventArgs) Handles BarCheckItem1.CheckedChanged
        If BarCheckItem1.Checked = True Then
            If CurrLogConfig.Debug = False Then
                CurrLogConfig.Debug = True
                bsitmInfo.Caption = "DEBUG-Log is active"
                bsitmInfo.Visibility = DevExpress.XtraBars.BarItemVisibility.Always
            End If
        Else
            CurrLogConfig.Debug = False
            bsitmInfo.Visibility = DevExpress.XtraBars.BarItemVisibility.Never
        End If
    End Sub

    Private Sub frmMain_Shown(sender As Object, e As EventArgs) Handles MyBase.Shown
        If CurrLogConfig.Debug Then
            BarCheckItem1.Checked = True
        Else
            BarCheckItem1.Checked = False
        End If
        RefreshTimer.Start()
    End Sub


End Class