SCrawler/SCrawler/VideosDownloaderForm.vb

' Copyright (C) 2022  Andy
' This program is free software: you can redistribute it and/or modify
' it under the terms of the GNU General Public License as published by
' the Free Software Foundation, either version 3 of the License, or
' (at your option) any later version.
'
' This program is distributed in the hope that it will be useful,
' but WITHOUT ANY WARRANTY
Imports System.ComponentModel
Imports PersonalUtilities.Forms
Friend Class VideosDownloaderForm
    Private MyView As FormsView
    Private ReadOnly MyPR As Toolbars.MyProgress
    Private ReadOnly UrlList As List(Of String)
    Private ReadOnly DownloadingUrlsFile As SFile = $"{SettingsFolderName}\VideosUrls.txt"
    Friend Sub New()
        InitializeComponent()
        UrlList = New List(Of String)
        MyPR = New Toolbars.MyProgress(ToolbarBOTTOM, PR_V, LBL_STATUS, "Downloading video")
        If DownloadingUrlsFile.Exists Then
            UrlList.ListAddList(DownloadingUrlsFile.GetText.StringToList(Of String, List(Of String))(Environment.NewLine), LAP.NotContainsOnly)
        End If
    End Sub
    Private Sub VideosDownloaderForm_Load(sender As Object, e As EventArgs) Handles Me.Load
        Try
            MyView = New FormsView(Me)
            MyView.ImportFromXML(Settings.Design)
            MyView.SetMeSize()
            RefillList(False)
        Catch ex As Exception
        End Try
    End Sub
    Private Sub VideosDownloaderForm_Closing(sender As Object, e As CancelEventArgs) Handles Me.Closing
        e.Cancel = True
        Hide()
    End Sub
    Private Sub VideosDownloaderForm_Disposed(sender As Object, e As EventArgs) Handles Me.Disposed
        If Not MyView Is Nothing Then MyView.Dispose(Settings.Design)
        If UrlList.Count > 0 Then UpdateUrlsFile()
        UrlList.Clear()
    End Sub
    Private Sub VideosDownloaderForm_KeyDown(sender As Object, e As KeyEventArgs) Handles Me.KeyDown
        Dim b As Boolean = True
        Select Case e.KeyCode
            Case Keys.Insert : AddVideo()
            Case Keys.F5 : DownloadVideos()
            Case Keys.F8 : BTT_DELETE_Click(Nothing, EventArgs.Empty)
            Case Else : b = False
        End Select
        If b Then e.Handled = True
    End Sub
    Private Sub RefillList(Optional ByVal Update As Boolean = True)
        Try
            With LIST_VIDEOS
                .Items.Clear()
                If UrlList.Count > 0 Then UrlList.ForEach(Sub(u) .Items.Add(u))
                If .Items.Count > 0 And _LatestSelected >= 0 And _LatestSelected <= .Items.Count - 1 Then .SelectedIndex = _LatestSelected
                If Update Then UpdateUrlsFile()
            End With
        Catch ex As Exception
            ErrorsDescriber.Execute(EDP.LogMessageValue, ex, "Error on list refill")
        End Try
    End Sub
    Private Sub UpdateUrlsFile()
        If UrlList.Count > 0 Then
            TextSaver.SaveTextToFile(UrlList.ListToString(, Environment.NewLine), DownloadingUrlsFile, True,, EDP.SendInLog)
        Else
            If DownloadingUrlsFile.Exists Then DownloadingUrlsFile.Delete(,,, EDP.SendInLog)
        End If
    End Sub
    Private Sub BTT_ADD_Click(sender As Object, e As EventArgs) Handles BTT_ADD.Click
        AddVideo()
    End Sub
    Private Sub AddVideo()
        Dim URL$ = GetNewVideoURL()
        If Not URL.IsEmptyString Then
            If Not UrlList.Contains(URL) Then
                UrlList.Add(URL)
                RefillList()
            Else
                MsgBoxE("This URL already added to list")
            End If
        End If
    End Sub
    Private Sub BTT_ADD_LIST_Click(sender As Object, e As EventArgs) Handles BTT_ADD_LIST.Click
        Dim l$ = InputBoxE("Enter URLs (new line as delimiter):", "URLs list", GetCurrentBuffer(),,,,,, True)
        If Not l.IsEmptyString Then
            Dim ub% = UrlList.Count
            UrlList.ListAddList(l.StringToList(Of String, List(Of String))(Environment.NewLine))
            If Not UrlList.Count = ub Then RefillList()
        End If
    End Sub
    Private Sub BTT_DELETE_Click(sender As Object, e As EventArgs) Handles BTT_DELETE.Click
        If _LatestSelected >= 0 And _LatestSelected <= UrlList.Count - 1 Then
            If MsgBoxE({$"Do you really want to delete video URL:{vbCr}{UrlList(_LatestSelected)}", "Deleting URL..."},
                       MsgBoxStyle.Exclamation + MsgBoxStyle.YesNo).DialogResult = MsgBoxResult.Yes Then
                UrlList.RemoveAt(_LatestSelected)
                RefillList()
            End If
        Else
            MsgBoxE("URL does not selected", MsgBoxStyle.Exclamation)
        End If
    End Sub
    Private Sub BTT_DOWN_Click(sender As Object, e As EventArgs) Handles BTT_DOWN.Click
        DownloadVideos()
    End Sub
    Private Sub DownloadVideos()
        If UrlList.Count > 0 Then
            MyPR.TotalCount = UrlList.Count
            MyPR.Enabled = True
            Dim IsFirst As Boolean = True
            For i% = UrlList.Count - 1 To 0 Step -1
                If DownloadVideoByURL(UrlList(i), IsFirst, True) Then UrlList.RemoveAt(i)
                MyPR.Perform()
                IsFirst = False
            Next
            MyPR.Done()
            RefillList()
            MyPR.Enabled = False
        Else
            MsgBoxE("No one video added", MsgBoxStyle.Exclamation)
        End If
    End Sub
    Private _LatestSelected As Integer = -1
    Private Sub LIST_VIDEOS_SelectedIndexChanged(sender As Object, e As EventArgs) Handles LIST_VIDEOS.SelectedIndexChanged
        _LatestSelected = LIST_VIDEOS.SelectedIndex
    End Sub
    Private Sub BTT_OPEN_PATH_Click(sender As Object, e As EventArgs) Handles BTT_OPEN_PATH.Click
        With Settings.LatestSavingPath
            If Not .Value.IsEmptyString Then
                If .Value.Exists(SFO.Path, False) Then
                    .Value.Open(SFO.Path, EDP.ShowMainMsg)
                Else
                    MsgBoxE($"Path [{ .Value}] does not exists!", MsgBoxStyle.Exclamation)
                End If
            Else
                MsgBoxE("Saving path does not set!", MsgBoxStyle.Exclamation)
            End If
        End With
    End Sub
End Class