EnvelopeGenerator/EnvelopeGenerator.Form/frmSplashScreen.vb

Imports DevExpress.XtraBars.Docking
Imports System.Globalization
Imports System.Threading
Imports DigitalData.GUIs.Common
Imports DigitalData.Modules.Config
Imports DigitalData.Modules.Database
Imports DigitalData.Modules.Logging
Imports EnvelopeGenerator.Common
Imports System.ComponentModel

Public Class frmSplashScreen
    Private LogConfig As LogConfig
    Private Logger As Logger
    Private ConfigManager As ConfigManager(Of Config)

    Private WithEvents Worker As New BackgroundWorker() With {.WorkerReportsProgress = True}

    Private Sub frmSplashScreen_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        lblVersion.Text = String.Format("Version {0}", My.Application.Info.Version.ToString)
        lblCopyright.Text = My.Application.Info.Copyright
        Me.BringToFront()
    End Sub

    Private Sub frmSplashScreen_Shown(sender As Object, e As EventArgs) Handles Me.Shown
        Dim oLogPath = IO.Path.Combine(Application.LocalUserAppDataPath, "Log")
        LogConfig = New LogConfig(LogConfig.PathType.CustomPath, oLogPath, CompanyName:="Digital Data", ProductName:="Envelope Generator")
        Logger = LogConfig.GetLogger()

        Try
            ConfigManager = New ConfigManager(Of Config)(LogConfig, Application.UserAppDataPath, Application.CommonAppDataPath, Application.StartupPath)

            If ConfigManager.Config.ConnectionString = String.Empty Then
                Dim oSQLConfig As New frmSQLConfig(LogConfig)
                If oSQLConfig.ShowDialog() = DialogResult.OK Then
                    ConfigManager.Config.ConnectionString = oSQLConfig.ConnectionString
                    ConfigManager.Save()

                    MsgBox("Database configured. Application will restart.", MsgBoxStyle.Critical, Text)
                    Application.Restart()
                Else
                    MsgBox("No Database configured. Application will close!", MsgBoxStyle.Critical, Text)
                    Application.Exit()
                End If
            End If

            Worker.RunWorkerAsync(New State() With {
                .User = Nothing,
                .UserId = 0,
                .LogConfig = LogConfig,
                .Config = ConfigManager.Config,
                .Database = Nothing,
                .DbConfig = New DbConfig()
            })
        Catch ex As Exception
            Logger.Error(ex)
            MsgBox("Fehler beim Initialisieren: " & ex.Message & vbNewLine & vbNewLine & ex.StackTrace, MsgBoxStyle.Critical, Text)
            Application.Exit()

        End Try
    End Sub

    Private Sub Worker_DoWork(sender As Object, e As DoWorkEventArgs) Handles Worker.DoWork
        Dim oState As State = DirectCast(e.Argument, State)

        Worker.ReportProgress(20, "Initialize Database")
        Thread.Sleep(300)

        Dim oConnectionString = MSSQLServer.DecryptConnectionString(oState.Config.ConnectionString)
        oState.Database = New MSSQLServer(oState.LogConfig, oConnectionString)

        If oState.Database?.DBInitialized = False Then
            Throw New ApplicationException("Could not connect to the database. Application will close!")
        End If

        Worker.ReportProgress(40, "Initialize Confguration")
        Thread.Sleep(300)

        Dim ConfigModel = New ConfigModel(oState)
        oState.DbConfig = ConfigModel.LoadConfiguration()

        Worker.ReportProgress(60, "Initialize User")
        Thread.Sleep(300)

        Dim oUserModel = New UserModel(oState)
        oState.UserId = oUserModel.SelectUserId()

        Dim oUser = oUserModel.SelectUser()

        Worker.ReportProgress(80, "Initialize Rights")
        Thread.Sleep(300)

        ' This checks for module access and admin rights
        If oUser IsNot Nothing Then
            oUserModel.CheckUserLogin(oUser)
        End If

        Worker.ReportProgress(100, "Starting Application")
        Thread.Sleep(300)

        oState.User = oUser

        e.Result = oState
    End Sub

    Private Sub Worker_ProgressChanged(sender As Object, e As ProgressChangedEventArgs) Handles Worker.ProgressChanged
        pbStatus.Value = e.ProgressPercentage
        lblStatus.Text = e.UserState.ToString()
    End Sub

    Private Sub Worker_RunWorkerCompleted(sender As Object, e As RunWorkerCompletedEventArgs) Handles Worker.RunWorkerCompleted
        Try
            If e.Error IsNot Nothing Then
                Throw e.Error
            End If

            Dim oState As State = DirectCast(e.Result, State)

            If oState.User Is Nothing Or oState.UserId = 0 Then
                Throw New ApplicationException($"User {Environment.UserName} is unknown. Please contact your administrator. Application will close!")
            End If

            Dim oCultureInfo As CultureInfo
            oCultureInfo = New CultureInfo(oState.User.Language)
            Thread.CurrentThread.CurrentCulture = oCultureInfo
            Thread.CurrentThread.CurrentUICulture = oCultureInfo
            CultureInfo.DefaultThreadCurrentCulture = oCultureInfo
            CultureInfo.DefaultThreadCurrentUICulture = oCultureInfo

            If oState.User.HasAccess = False Then
                Throw New ApplicationException("User is not activated for this module. Please contact your administrator. Application will close!")
            End If

            If Not String.IsNullOrEmpty(oState.DbConfig.ExternalProgramName) Then
                Text = oState.DbConfig.ExternalProgramName
            End If

            ' Hide splashscreen
            Hide()

            Dim oForm As New frmMain(oState)
            oForm.ShowDialog()

            ' Close this form after frmMain is closed
            Close()
        Catch ex As Exception
            Logger.Error(ex)
            MsgBox("Fehler beim Initialisieren: " & ex.Message & vbNewLine & vbNewLine & ex.StackTrace, MsgBoxStyle.Critical, Text)
            Application.Exit()
        End Try
    End Sub

End Class