Imports System.IO
Imports DevExpress.XtraSplashScreen
Imports DigitalData.Modules.Logging
Imports DigitalData.Modules.Messaging
Imports DigitalData.GUIs.ClipboardWatcher

Public Class frmFlowForm
    ' Constants
    Private Const OPACITY_INITIAL = 0
    Private Const OPACITY_HIDDEN = 0.65
    Private Const OPACITY_SHOWN = 0.85

    Private Logger As Logger
    Private DTIDB_SEARCHES As DataTable

    ' Helper Classes
    Private Init As ClassInit
    Private FileDrop As ClassFileDrop
    Private FileHandle As ClassFilehandle
    Private ProfileFilter As ProfileFilter

    ' Runtime Flags
    Private ApplicationLoading As Boolean = True
    Private IDBSearchActive As Boolean = False

    ' Runtime Variables
    Private ESCHitCount As Integer = 0

    Private IndexForm As frmGlobix_Index

    ' Events
    Public Event ClipboardChanged As EventHandler(Of IDataObject)
    Private WithEvents Watcher As ClassClipboardWatcher = ClassClipboardWatcher.Singleton

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

        ' === Hide form initially ===
        Opacity = OPACITY_INITIAL
    End Sub


    Private Sub frmFlowForm_Load(sender As Object, e As EventArgs) Handles Me.Load
        ' === Initialize Logger ===
        Logger = My.LogConfig.GetLogger()
        ' === Show Splash Screen ===
        SplashScreenManager.ShowForm(Me, GetType(frmSplash), False, False)

        ' === Initialization ===
        Init = New ClassInit(My.LogConfig, Me)

        AddHandler Init.Completed, AddressOf Init_Completed
        Init.InitializeApplication()
    End Sub

    Private Sub Init_Completed(sender As Object, e As EventArgs)
        Me.Cursor = Cursors.WaitCursor
        ' === Initialization Complete ===
        ApplicationLoading = False
        SplashScreenManager.CloseForm(False)

        ' === Setup Timers ===
        AddHandler TimerRefreshData.Tick, AddressOf TimerRefreshData_Tick
        TimerRefreshData.Enabled = True

        ' === Register As Event Listener ===
        EventBus.Instance.Register(Me)

        ' === Set Form Properties ===
        TopMost = True
        AllowDrop = True
        ShowInTaskbar = False
        Opacity = OPACITY_HIDDEN
        Location = My.UIConfig.FlowForm.Location

        ' === Setup Event Handlers ===
        AddHandler KeyDown, AddressOf frmFlowForm_KeyDown
        AddHandler KeyUp, AddressOf frmFlowForm_KeyDown

        For Each oControl As Control In Controls
            AddHandler oControl.MouseEnter, AddressOf frmFlowForm_MouseEnter
            AddHandler oControl.MouseLeave, AddressOf frmFlowForm_MouseLeave
        Next

        ' TODO: Clean up
        Dim oSQL = My.Queries.Common.FNIDB_GET_SEARCH_PROFILES(My.Application.User.UserId, My.Application.User.Language)
        Dim oDatatable As DataTable = My.DatabaseIDB.GetDatatable(oSQL)
        PictureBoxSearch.Visible = False

        If Not IsNothing(oDatatable) OrElse oDatatable.Rows.Count > 0 Then
            IDBSearchActive = True
            DTIDB_SEARCHES = oDatatable
            PictureBoxSearch.Visible = True
        End If
        If My.Application.ModulesActive.Contains(ClassConstants.MODULE_GLOBAL_INDEXER) Then
            FileDrop = New ClassFileDrop(My.LogConfig)
            FileHandle = New ClassFilehandle(My.LogConfig)
            Refresh_RegexTable()
        End If
        My.DTAttributes = My.DatabaseIDB.GetDatatable("SELECT * FROM TBIDB_ATTRIBUTE")
        Me.Cursor = Cursors.Default
    End Sub


    Private Sub TimerRefreshData_Tick(sender As Object, e As EventArgs)
        'TODO: Refresh Data
    End Sub

    Private Sub frmFlowForm_MouseLeave(sender As Object, e As EventArgs) Handles MyBase.MouseLeave
        Opacity = OPACITY_HIDDEN
    End Sub

    Private Sub frmFlowForm_MouseEnter(sender As Object, e As EventArgs) Handles Me.MouseEnter
        Opacity = OPACITY_SHOWN
    End Sub

    Private Sub frmFlowForm_MouseMove(ByVal sender As Object, ByVal e As MouseEventArgs) Handles Me.MouseMove, PictureBoxDragDrop.MouseMove
        If e.Button = MouseButtons.Left Then
            ClassWin32.ReleaseCapture()
            ClassWin32.SendMessage(Handle, ClassWin32.WM_NCLBUTTONDOWN, ClassWin32.HTCAPTION, 0)
        End If
    End Sub

    Private Sub frmFlowForm_KeyDown(ByVal sender As Object, ByVal e As KeyEventArgs)
        If e.KeyCode = Keys.Escape Then
            If ESCHitCount > 0 Then
                ExitZooflow()
            Else
                ESCHitCount += 1
            End If
        ElseIf e.KeyCode = Keys.D AndAlso (e.Control) Then
            If My.Application.ModulesActive.Contains(ClassConstants.MODULE_ZOOFLOW) Then
                MsgBox("Search")
            End If
        End If
    End Sub

    Sub ExitZooflow()
        Dim oResult As DialogResult = MessageBox.Show("Exit Zooflow", "Are you sure you want to close ZooFlow", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
        If oResult = DialogResult.Yes Then
            Application.Exit()
        Else
            ESCHitCount = 0
        End If
    End Sub

    Public Sub OnEvent(Params As Object)
        Logger.Debug("OnEvent called!")
    End Sub

    Private Sub PictureBoxSearch_Click(sender As Object, e As EventArgs) Handles PictureBoxSearch.Click
        Cursor = Cursors.WaitCursor
        If TheFormIsAlreadyLoaded("frmSearchStart") Then
            Cursor = Cursors.Default
            Exit Sub
        End If
        Dim oForm As New frmSearchStart(DTIDB_SEARCHES)
        oForm.Show()
        Cursor = Cursors.Default
        If TimerCheckActiveForms.Enabled = False Then
            TimerCheckActiveForms.Enabled = True
        End If
    End Sub
    Private Sub PictureBoxSearch_MouseEnter(sender As Object, e As EventArgs) Handles PictureBoxSearch.MouseEnter
        PictureBoxSearch.Image = My.Resources._2_LUPE_AKTIV_ZOO
    End Sub
    Private Sub PictureBoxSearch_MouseLeave(sender As Object, e As EventArgs) Handles PictureBoxSearch.MouseLeave
        PictureBoxSearch.Image = My.Resources._2_LUPE_INAKTIV_ZOO
    End Sub
    Private Sub PictureBoxPM_MouseEnter(sender As Object, e As EventArgs) Handles PictureBoxPM.MouseEnter
        PictureBoxPM.Image = My.Resources._3_PERSON_AKTIV_ZOO
    End Sub
    Private Sub PictureBoxPM_MouseLeave(sender As Object, e As EventArgs) Handles PictureBoxPM.MouseLeave
        PictureBoxPM.Image = My.Resources._3_PERSON_INAKTIV_ZOO
    End Sub

    Private Sub PictureBoxGlobix_MouseEnter(sender As Object, e As EventArgs) Handles PictureBoxGlobix.MouseEnter
        PictureBoxGlobix.Image = My.Resources._4_GLOBIX_AKTIV_ZOO
    End Sub
    Private Sub PictureBoxGlobix_MouseLeave(sender As Object, e As EventArgs) Handles PictureBoxGlobix.MouseLeave
        PictureBoxGlobix.Image = My.Resources._4_GLOBIX_INAKTIV_ZOO
    End Sub
    Private Sub ZooFlowBeendenToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles ZooFlowBeendenToolStripMenuItem.Click
        ExitZooflow()
    End Sub
    Private Sub AlleAnzeigenToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles AlleAnzeigenToolStripMenuItem.Click
        For Each oControl As Control In Me.Controls
            oControl.Visible = True
        Next
    End Sub
    Private Sub VerwaltungToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles VerwaltungToolStripMenuItem.Click
        frmAdministrationZooFlow.Show()
    End Sub

    Private Sub frmFlowForm_DragEnter(sender As Object, e As DragEventArgs) Handles MyBase.DragEnter
        PictureBoxDragDrop.Image = My.Resources._1_LOGO_ZOO_FLOW_DROP3

        e.Effect = DragDropEffects.Copy
        Drag_Enter(sender, e)
    End Sub

    Private Sub frmFlowForm_DragDrop(sender As Object, e As DragEventArgs) Handles MyBase.DragDrop
        DragDropForm(e)
    End Sub

    Private Sub frmFlowForm_DragLeave(sender As Object, e As EventArgs) Handles Me.DragLeave
        PictureBoxDragDrop.Image = My.Resources._1_LOGO_ZOO_FLOW1
    End Sub

    Private Sub PictureBoxAbo_MouseEnter(sender As Object, e As EventArgs) Handles PictureBoxAbo.MouseEnter
        PictureBoxAbo.Image = My.Resources._2_ZOO_FLOW_Abo_MouseOver
    End Sub

    Private Sub PictureBoxAbo_MouseLeave(sender As Object, e As EventArgs) Handles PictureBoxAbo.MouseLeave
        PictureBoxAbo.Image = My.Resources._2_ZOO_FLOW_Abo
    End Sub

    Private Sub PictureBoxAbo_Click(sender As Object, e As EventArgs) Handles PictureBoxAbo.Click
        Cursor = Cursors.WaitCursor
        If TheFormIsAlreadyLoaded("frmPreSearch") Then
            Cursor = Cursors.Default
            Exit Sub
        End If
        Dim oForm2 As New frmSearchPredefined()
        oForm2.Show()
        Cursor = Cursors.Default
    End Sub
    Private Function TheFormIsAlreadyLoaded(ByVal pFormName As String) As Boolean

        TheFormIsAlreadyLoaded = False

        For Each frm As Form In Application.OpenForms
            If frm.Name.Equals(pFormName) Then
                TheFormIsAlreadyLoaded = True
                Exit Function
            End If
        Next

    End Function
    Private Function FormLoaded_Visible() As Boolean
        For Each frm As Form In Application.OpenForms
            If frm.Name.Equals("frmSearchStart") Or frm.Name.Equals("frmGlobix_Index") Then
                Me.Visible = False
                Exit Function
            End If
        Next
        Me.Visible = True
        TimerCheckActiveForms.Enabled = False
    End Function

    Private Sub DatenbankverbindungToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles DatenbankverbindungToolStripMenuItem.Click
        frmConfigDatabase.ShowDialog()
    End Sub

    Private Sub TimerCheckActiveForms_Tick(sender As Object, e As EventArgs) Handles TimerCheckActiveForms.Tick
        FormLoaded_Visible()
        If Me.Visible = False Then Exit Sub
    End Sub

    Private Sub NotifyIcon_DoubleClick(sender As Object, e As EventArgs) Handles NotifyIcon.DoubleClick
        If Me.Visible = False Then
            Me.Visible = True
            TimerCheckActiveForms.Enabled = False
        End If
    End Sub

    Private Sub PictureBox1_DragEnter(sender As Object, e As DragEventArgs) Handles PictureBoxDragDrop.DragEnter
        Drag_Enter(sender, e)
    End Sub
    Sub Drag_Enter(sender As Object, e As DragEventArgs)
        If e.Data.GetDataPresent(DataFormats.FileDrop) Then
            e.Effect = DragDropEffects.All
            ' Console.WriteLine("DragEnter ...DragDrop")
        ElseIf e.Data.GetDataPresent("FileGroupDescriptor") Then
            'handle a message dragged from Outlook
            e.Effect = DragDropEffects.Copy
            ' Console.WriteLine("DragEnter ...OutlookMessage")
        ElseIf e.Data.GetDataPresent("aryFileGroupDescriptor") AndAlso (e.Data.GetDataPresent("FileContents")) Then
            e.Effect = DragDropEffects.Copy
            ' Console.WriteLine("DragEnter ...Attachment from Outlook")
        Else
            'otherwise, do not handle
            e.Effect = DragDropEffects.None
        End If
    End Sub
    Sub DragDropForm(e As DragEventArgs)
        If Not My.Application.ModulesActive.Contains(ClassConstants.MODULE_GLOBAL_INDEXER) Then
            Exit Sub
        End If
        If TheFormIsAlreadyLoaded("frmIndexFileList") Then
            Cursor = Cursors.Default
            MsgBox("Please index the active file first!", MsgBoxStyle.Exclamation, "Drag 'n Drop not allowed!")
            Exit Sub
        End If

        'Erstmal alles löschen
        My.Database.ExecuteNonQuery("DELETE FROM TBGI_FILES_USER WHERE UPPER(USER@WORK) = UPPER('" & Environment.UserName & "')")

        If FileDrop.Drop_File(e) = True Then
            TimerCheckDroppedFiles.Start()
            Me.Cursor = Cursors.WaitCursor
        End If

        PictureBoxDragDrop.Image = My.Resources._1_LOGO_ZOO_FLOW1
    End Sub

    Private Sub PictureBox1_DragDrop(sender As Object, e As DragEventArgs) Handles PictureBoxDragDrop.DragDrop
        DragDropForm(e)
    End Sub

    Private Sub TimerCheckDroppedFiles_Tick(sender As Object, e As EventArgs) Handles TimerCheckDroppedFiles.Tick
        If Not My.Application.ModulesActive.Contains(ClassConstants.MODULE_GLOBAL_INDEXER) Then
            Exit Sub
        End If

        TimerCheckDroppedFiles.Stop()
        Check_Dropped_Files()
        Me.Cursor = Cursors.Default
    End Sub
    Sub Check_Dropped_Files()
        Try
            My.Database.ExecuteNonQuery("DELETE FROM TBGI_FILES_USER WHERE WORKED = 1 AND UPPER(USER@WORK) = UPPER('" & Environment.UserName & "')")
            Dim i As Integer

            For Each Str As Object In FileDrop.files_dropped
                If Not Str Is Nothing Then
                    Logger.Info(">> Check Drop-File: " & Str.ToString)
                    Dim handleType As String = Str.Substring(0, Str.LastIndexOf("|") + 1)
                    Dim filename As String = Str.Substring(Str.LastIndexOf("|") + 1)
                    If My.Application.Globix.FileExistsinDropTable(filename) = False Then
                        FileHandle.Decide_FileHandle(filename, handleType)
                        i += 1
                    Else
                        ' Console.WriteLine("File gibt es bereits")
                    End If

                End If
            Next

            Dim sql As String = "SELECT * FROM TBGI_FILES_USER WHERE WORKED = 0 AND UPPER(USER@WORK) = UPPER('" & Environment.UserName & "')"
            My.Application.Globix.DTACTUAL_FILES = Nothing
            My.Application.Globix.DTACTUAL_FILES = My.Database.GetDatatable(sql)
            My.Application.Globix.ABORT_INDEXING = False

            Dim oOnlyFilesFromFilesystem = True
            For Each oRow As DataRow In My.Application.Globix.DTACTUAL_FILES.Rows
                If oRow.Item("HANDLE_TYPE").ToString <> "|DROPFROMFSYSTEM|" Then
                    oOnlyFilesFromFilesystem = False
                    Exit For
                End If
            Next

            If My.Application.Globix.DTACTUAL_FILES.Rows.Count > 1 And oOnlyFilesFromFilesystem = False Then
                frmGlobix_IndexFileList.ShowDialog()
                My.Application.Globix.DTACTUAL_FILES = Nothing
                My.Application.Globix.DTACTUAL_FILES = My.Database.GetDatatable(sql)
            End If

            For Each oFileRow As DataRow In My.Application.Globix.DTACTUAL_FILES.Rows
                Dim filestring As String = oFileRow.Item("FILENAME2WORK").ToString
                My.Application.Globix.CURRENT_FILENAME = oFileRow.Item("FILENAME2WORK").ToString
                My.Application.Globix.CURRENT_WORKFILE_GUID = oFileRow.Item(0)
                My.Application.Globix.CURRENT_WORKFILE = oFileRow.Item("FILENAME2WORK").ToString
                Logger.Info(">> CURRENT_WORKFILE: " & My.Application.Globix.CURRENT_WORKFILE)
                If File.Exists(My.Application.Globix.CURRENT_WORKFILE) = True And My.Application.Globix.DTACTUAL_FILES.Rows.Count > 0 Then
                    Globix_Open_IndexDialog()
                End If
            Next
            Show()
        Catch ex As Exception
            MsgBox("Unexpected Error in Check_Dropped_Files:" & vbNewLine & ex.Message, MsgBoxStyle.Critical)
            Show()
        End Try

    End Sub
    Sub Globix_Open_IndexDialog()
        Try
            IndexForm = New frmGlobix_Index(My.LogConfig)
            IndexForm.Show()
            Cursor = Cursors.Default
            If TimerCheckActiveForms.Enabled = False Then
                TimerCheckActiveForms.Enabled = True
            End If
        Catch ex As Exception
            Logger.Error(ex)
            MsgBox(ex.Message, MsgBoxStyle.Critical)
        End Try
    End Sub

    Private Sub frmFlowForm_ResizeEnd(sender As Object, e As EventArgs) Handles Me.ResizeEnd
        My.UIConfig.FlowForm.Location = Location
        My.UIConfigManager.Save()
    End Sub
End Class