Imports System.Windows.Forms
Imports DevExpress.XtraEditors
Imports DevExpress.XtraEditors.Repository
Imports DevExpress.XtraLayout
Imports DevExpress.XtraSplashScreen
Imports DigitalData.Modules.Database
Imports DigitalData.Modules.Logging
Imports DigitalData.Modules.ZooFlow
Imports DigitalData.Modules.Language
Imports DevExpress.XtraGrid

Public Class frmObjectPropertyDialog
    Private _LogConfig As LogConfig
    Private _Logger As Logger
    Private _Environment As Environment
    Private _ObjectId As Int64
    Private _Db As MSSQLServer
    Private _Controls As PropertyControls

    Public Sub New(LogConfig As LogConfig, Environment As Environment, ObjectId As Long)
        ' Dieser Aufruf ist für den Designer erforderlich.
        InitializeComponent()

        ' Fügen Sie Initialisierungen nach dem InitializeComponent()-Aufruf hinzu.
        _LogConfig = LogConfig
        _Logger = LogConfig.GetLogger()
        _Environment = Environment
        _ObjectId = ObjectId
        _Db = _Environment.DatabaseIDB
        _Controls = New PropertyControls(_LogConfig, _Db)
    End Sub

    Private Async Sub frmObjectPropertyDialog_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim oHandle As IOverlaySplashScreenHandle = Nothing

        Try
            oHandle = SplashScreenManager.ShowOverlayForm(Me)

            Dim oEntityIds = Await GetBusinessEntitiesForObjectId(_ObjectId)
            Dim oHistoryDataTable = Await GetValueHistoryForObjectId(_ObjectId)
            Dim oObjectProperties = Await GetPropertiesForObjectId(_ObjectId)
            Dim oCombobox As RepositoryItemComboBox = DirectCast(cmbBusinessEntity.Edit, RepositoryItemComboBox)
            oCombobox.Items.AddRange(oEntityIds)

            ShowAttributeHistory(oHistoryDataTable)
            ShowObjectProperties(oObjectProperties)

            If oEntityIds.Count = 1 Then
                cmbBusinessEntity.EditValue = oEntityIds.First()
            End If
        Catch ex As ApplicationException
            _Logger.Error(ex)
            MessageBox.Show(ex.Message, Text, MessageBoxButtons.OK, MessageBoxIcon.Error)
        Catch ex As Exception
            _Logger.Error(ex)
            MessageBox.Show("Unhandled exception occurred please check the log", Text, MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
        Finally
            If oHandle IsNot Nothing
                SplashScreenManager.CloseOverlayForm(oHandle)
            End If
        End Try
    End Sub

    Private Async Function GetAttributesForBusinessEntity(EntityId As Long) As Task(Of List(Of Attribute))
        Dim oSQL = $"SELECT * FROM VWIDB_BE_ATTRIBUTE WHERE BE_ID = {EntityId}"
        Dim oDatatable = Await _Db.GetDatatableAsync(oSQL)

        If oDatatable.Rows.Count = 0 Then
            Throw New ApplicationException($"BusinessEntity {EntityId} does not have any attributes!")
        Else
            Dim oAttributes As New List(Of Attribute)

            For Each oRow As DataRow In oDatatable.Rows
                oAttributes.Add(New Attribute() With {
                    .ID = oRow.Item("ATTR_ID"),
                    .Title = oRow.Item("ATTR_TITLE"),
                    .TypeID = oRow.Item("TYPE_ID"),
                    .TypeName = oRow.Item("TYPE_NAME")
                })
            Next

            Return oAttributes
        End If
    End Function

    Private Async Function GetBusinessEntitiesForObjectId(ObjectId As Long) As Task(Of List(Of Long))
        Dim oSQL = $"SELECT BE_ID FROM TBIDB_OBJECT_BE WHERE IDB_OBJ_ID = {ObjectId}"
        Dim oDatatable = Await _Db.GetDatatableAsync(oSQL)

        If oDatatable.Rows.Count = 0 Then
            Throw New ApplicationException($"ObjectId {ObjectId} is not assigned to any business entity!")
        Else
            Dim oEntities As New List(Of Long)

            For Each oRow In oDatatable.Rows
                oEntities.Add(oRow.item("BE_ID"))
            Next

            Return oEntities
        End If
    End Function

    Private Async Function GetValueHistoryForObjectId(ObjectId As Long) As Task(Of DataTable)
        Dim oSQL As String = $"SELECT * FROM VWIDB_CHANGE_LOG WHERE IDB_OBJ_ID = {ObjectId} ORDER BY ChangeID DESC"
        Dim oDatatable = Await _Db.GetDatatableAsync(oSQL)

        Return oDatatable
    End Function

    Private Async Function GetPropertiesForObjectId(ObjectId As Long) As Task(Of DataTable)
        Dim oSQL As String = $"SELECT * FROM TBIDB_OBJECT WHERE IDB_OBJ_ID = {ObjectId}"
        Dim oDatatable = Await _Db.GetDatatableAsync(oSQL)

        Return oDatatable
    End Function

    Private Async Function GetAttributeValue(AttributeName As String, ObjectId As Long, Optional LanguageCode As String = "de-DE", Optional IsForeign As Boolean = False) As Task(Of Object)
        Dim oIsForeign = IIf(IsForeign, 1, 0)
        Dim oSQL = $"SELECT TERM_VALUE FROM [dbo].[FNIDB_PM_GET_VARIABLE_VALUE] ({ObjectId}, '{AttributeName}', '{LanguageCode}', {oIsForeign})"
        Dim oTermValue = Await _Db.GetScalarValueAsync(oSQL)

        Return oTermValue
    End Function

    Private Async Function GetAttributeValueAsTable(AttributeName As String, ObjectId As Long, Optional LanguageCode As String = "de-DE", Optional IsForeign As Boolean = False) As Task(Of DataTable)
        Dim oIsForeign = IIf(IsForeign, 1, 0)
        Dim oSQL = $"SELECT TERM_VALUE FROM [dbo].[FNIDB_PM_GET_VARIABLE_VALUE] ({ObjectId}, '{AttributeName}', '{LanguageCode}', {oIsForeign})"
        Dim oDatatable = Await _Db.GetDatatableAsync(oSQL)

        Return oDatatable
    End Function

    Private Async Sub cmbBusinessEntity_EditValueChanged(sender As Object, e As EventArgs) Handles cmbBusinessEntity.EditValueChanged
        Dim oEntityId As Long

        If Long.TryParse(cmbBusinessEntity.EditValue, oEntityId) = False Then
            Exit Sub
        End If

        Dim oAttributes = Await GetAttributesForBusinessEntity(oEntityId)

        For Each oAttribute As Attribute In oAttributes
            Dim oControl = _Controls.GetControlForAttribute(oAttribute, True)
            Dim oItem As LayoutControlItem = AttributeLayout.AddItem()

            oItem.Text = oAttribute.Title
            oItem.Name = oAttribute.Title
            oItem.Control = oControl
        Next

        For Each oItem As LayoutControlItem In AttributeLayout.Items
            If TypeOf oItem.Control Is BaseEdit Then
                Dim oValue = Await GetAttributeValue(oItem.Name, _ObjectId)
                Dim oEdit = DirectCast(oItem.Control, BaseEdit)
                oEdit.EditValue = oValue
            ElseIf TypeOf oItem.Control Is GridControl Then
                Dim oValueTable = Await GetAttributeValueAsTable(oItem.Name, _ObjectId)
                Dim oGrid = DirectCast(oItem.Control, GridControl)
                oGrid.DataSource = oValueTable

            End If
        Next
    End Sub

    Private Function ShowAttributeHistory(pDatatable As DataTable) As Boolean
        Try
            If pDatatable.Rows.Count > 0
                GridValueHistory.DataSource = pDatatable
            Else
                TabPageHistory.Visible = False
            End If

            Return True
        Catch ex As Exception
            _Logger.Error(ex)
            Return False
        End Try
    End Function

    Private Function ShowObjectProperties(pDatatable As DataTable) As Boolean
        Try
            Dim oRow As DataRow = pDatatable.Rows.Item(0)
            txtObjectId.Text = oRow.Item("IDB_OBJ_ID")
            txtCreatedWhen.Text = oRow.Item("ADDED_WHEN")
            txtCreatedWho.Text = oRow.Item("ADDED_WHO")
            txtChangedWhen.Text = Utils.NotNull(oRow.Item("CHANGED_WHEN"), String.Empty)
            txtChangedWho.Text = Utils.NotNull(oRow.Item("CHANGED_WHO"), String.Empty)

            lbLifecycleStart.Text = DirectCast(oRow.Item("ADDED_WHEN"), Date).ToShortDateString
            lbLifecycleEnd.Text = Date.MaxValue.ToShortDateString
            progressLifecycle.Position = 30

            Return True
        Catch ex As Exception
            _Logger.Error(ex)
            Return False
        End Try
    End Function
End Class