Imports System.Text
Imports System.Threading
Imports System.Windows.Forms.VisualStyles.VisualStyleElement
Imports Microsoft.VisualBasic.FileIO
Imports System.Threading.Tasks

Public Class Form1
    Dim api As New ApiInterface
    Public isLogin As Boolean = False
    Private isLogVisible As Boolean = False
    Private isProcessingPrint As Boolean = False ' نشانگر وضعیت پردازش چاپ
    Private Sub Form1_Resize(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Resize
        If WindowState = FormWindowState.Minimized Then
            NotifyIcon1.Visible = True
            Hide()
            NotifyIcon1.ShowBalloonTip(100)
        End If
    End Sub
    Private Sub NotifyIcon1_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles NotifyIcon1.DoubleClick
        Me.Show()
        Me.WindowState = FormWindowState.Normal
        NotifyIcon1.Visible = False
    End Sub

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        MenuStrip1.Enabled = False

        ' تنظیم سیستم لاگ
        SetupLogSystem()

        Dim FrmLogin As New FrmLogin
        FrmLogin.StartPosition = FormStartPosition.CenterScreen
        FrmLogin.MdiParent = Me
        FrmLogin.Show()
    End Sub

    Private Sub btnCloseApplication_Click(sender As Object, e As EventArgs) Handles btnCloseApplication.Click
        Application.Exit()
    End Sub

    Private Sub btnPrinters_Click(sender As Object, e As EventArgs) Handles btnPrinters.Click
        Dim frm As New FrmPrinters
        frm.StartPosition = FormStartPosition.CenterScreen
        frm.MdiParent = Me
        frm.Show()
    End Sub

    Private Sub btnShowLog_Click(sender As Object, e As EventArgs) Handles btnShowLog.Click
        ToggleLogVisibility()
    End Sub

    Private Sub دربارهبرنامهToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles دربارهبرنامهToolStripMenuItem.Click
        Dim frm As New FrmAboutHesabix
        frm.StartPosition = FormStartPosition.CenterScreen
        frm.MdiParent = Me
        frm.Show()
    End Sub

    Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
        ' جلوگیری از اجرای همزمان چندین عملیات چاپ
        If isProcessingPrint Then
            Return
        End If

        ' اجرای عملیات چاپ در thread جداگانه تا UI مسدود نشود
        AsyncHelper.RunAsync(Function() ProcessPrintingAsyncTask())
    End Sub

    Private Async Function ProcessPrintingAsyncTask() As Task
        Try
            ' تنظیم نشانگر وضعیت
            isProcessingPrint = True

            ' دریافت آخرین چاپ به صورت async با retry
            Dim file As String = ""
            Dim success As Boolean = Await AsyncHelper.RunWithRetry(
                Async Function()
                    file = Await api.getLastPrintAsync()
                End Function, 3, 2000) ' 3 تلاش با تاخیر 2 ثانیه

            If Not success OrElse String.IsNullOrEmpty(file) Then
                Return
            End If

            Dim SPrinter As String = ""
            Dim res() As String = file.Split(",")
            Dim canPrint As Boolean = False

            If file <> "" Then
                If (res(0) = "fastSellPosInvoice" And My.Settings.printerFastSellInvoice <> "Off") Then
                    SPrinter = My.Settings.printerFastSellInvoice
                    canPrint = True
                ElseIf res(0) = "fastSellCashdesk" And My.Settings.printerFastSellCashdeskInvoice <> "Off" Then
                    SPrinter = My.Settings.printerFastSellCashdeskInvoice
                    canPrint = True
                ElseIf res(0) = "fastSellInvoice" And My.Settings.printerSell <> "Off" Then
                    SPrinter = My.Settings.printerSell
                    canPrint = True
                End If

                If canPrint AndAlso SPrinter <> "" Then
                    ' دانلود فایل به صورت async با retry
                    Dim downloadSuccess As Boolean = Await AsyncHelper.RunWithRetry(
                        Async Function()
                            Return Await api.downloadFileAsync(res(1), res(0))
                        End Function, 2, 3000) ' 2 تلاش با تاخیر 3 ثانیه

                    If downloadSuccess Then
                        ' اجرای چاپ در UI thread
                        AsyncHelper.RunOnUIThread(Me, Sub()
                                                          Dim sReport = SpecialDirectories.CurrentUserApplicationData.ToString + "\" + res(0) + ".pdf"
                                                          Try
                                                              Using document = PdfiumViewer.PdfDocument.Load(sReport)
                                                                  Using printDocument = document.CreatePrintDocument()
                                                                      printDocument.PrinterSettings = New System.Drawing.Printing.PrinterSettings() With {.PrinterName = SPrinter}
                                                                      printDocument.PrintController = New System.Drawing.Printing.StandardPrintController()
                                                                      printDocument.Print()
                                                                  End Using
                                                              End Using
                                                          Catch ex As Exception
                                                              Logger.Instance.LogError("خطا در چاپ مستقیم PDF", ex)
                                                          End Try
                                                      End Sub)
                    End If
                End If
            End If
        Catch ex As Exception
            ' ثبت خطا در لاگ
            Logger.Instance.LogError("خطا در فرآیند چاپ", ex)
        Finally
            ' بازنشانی نشانگر وضعیت
            isProcessingPrint = False
        End Try
    End Function

    Private Sub btnHideWindow_Click(sender As Object, e As EventArgs) Handles btnHideWindow.Click
        Me.WindowState = FormWindowState.Minimized
    End Sub

    ' متدهای سیستم لاگ
    Private Sub SetupLogSystem()
        ' تنظیم layout پنل لاگ
        LogPanel.Dock = DockStyle.Bottom
        LogPanel.Height = 200
        LogPanel.Visible = False

        ' تنظیم layout کنترل‌ها
        LogLabel.Dock = DockStyle.Top
        LogLabel.Height = 25
        LogLabel.Text = "لاگ سیستم - درخواست‌ها و پاسخ‌های سرور"
        LogLabel.TextAlign = ContentAlignment.MiddleCenter

        LogControlsPanel.Dock = DockStyle.Bottom
        LogControlsPanel.Height = 35

        LogTextBox.Dock = DockStyle.Fill
        LogTextBox.Multiline = True
        LogTextBox.WordWrap = True

        ' تنظیم layout دکمه‌ها
        ClearLogButton.Dock = DockStyle.Right
        ClearLogButton.Width = 80
        ClearLogButton.Text = "پاک کردن"

        SaveLogButton.Dock = DockStyle.Right
        SaveLogButton.Width = 80
        SaveLogButton.Text = "ذخیره"

        ToggleLogButton.Dock = DockStyle.Right
        ToggleLogButton.Width = 80
        ToggleLogButton.Text = "مخفی کردن"

        ' تنظیم Logger
        Logger.Instance.SetLogTextBox(LogTextBox)

        ' اضافه کردن event handlers
        AddHandler ClearLogButton.Click, AddressOf ClearLogButton_Click
        AddHandler SaveLogButton.Click, AddressOf SaveLogButton_Click
        AddHandler ToggleLogButton.Click, AddressOf ToggleLogButton_Click

        ' اضافه کردن منوی لاگ
        AddLogMenuItems()

        Logger.Instance.LogInfo("سیستم لاگ راه‌اندازی شد")
    End Sub

    Private Sub AddLogMenuItems()
        ' تنظیم متن دکمه نمایش لاگ
        btnShowLog.Text = "نمایش لاگ سیستم"

        ' اضافه کردن منوی لاگ اضافی
        Dim logMenuItem As New ToolStripMenuItem("مدیریت لاگ")
        logMenuItem.DropDownItems.Add("پاک کردن لاگ", Nothing, AddressOf ClearLogMenuItem_Click)
        logMenuItem.DropDownItems.Add("ذخیره لاگ", Nothing, AddressOf SaveLogMenuItem_Click)

        تنظیماتToolStripMenuItem.DropDownItems.Add(logMenuItem)
    End Sub

    Private Sub ToggleLogButton_Click(sender As Object, e As EventArgs)
        ToggleLogVisibility()
    End Sub

    Private Sub ClearLogButton_Click(sender As Object, e As EventArgs)
        Logger.Instance.ClearLog()
    End Sub

    Private Sub SaveLogButton_Click(sender As Object, e As EventArgs)
        Logger.Instance.SaveLogToFile()
    End Sub

    Private Sub ToggleLogMenuItem_Click(sender As Object, e As EventArgs)
        ToggleLogVisibility()
    End Sub

    Private Sub ClearLogMenuItem_Click(sender As Object, e As EventArgs)
        Logger.Instance.ClearLog()
    End Sub

    Private Sub SaveLogMenuItem_Click(sender As Object, e As EventArgs)
        Logger.Instance.SaveLogToFile()
    End Sub

    Private Sub ToggleLogVisibility()
        isLogVisible = Not isLogVisible
        LogPanel.Visible = isLogVisible

        If isLogVisible Then
            ToggleLogButton.Text = "مخفی کردن"
            btnShowLog.Text = "مخفی کردن لاگ"
            Logger.Instance.LogInfo("پنل لاگ نمایش داده شد")
        Else
            ToggleLogButton.Text = "نمایش لاگ"
            btnShowLog.Text = "نمایش لاگ سیستم"
            Logger.Instance.LogInfo("پنل لاگ مخفی شد")
        End If
    End Sub

    Private Sub ToolStripStatusLabel1_Click(sender As Object, e As EventArgs) Handles ToolStripStatusLabel1.Click

    End Sub
End Class