Public Class PageVersionMod
    Implements IRefreshable

#Region "初始化"

    Private IsLoad As Boolean = False
    Public Sub PageOther_Loaded() Handles Me.Loaded

        If FrmMain.PageLast.Page <> FormMain.PageType.CompDetail Then PanBack.ScrollToHome()
        AniControlEnabled += 1
        SelectedMods.Clear()
        ReloadModList()
        ChangeAllSelected(False)
        AniControlEnabled -= 1

        '非重复加载部分
        If IsLoad Then Exit Sub
        IsLoad = True

        '调整按钮边距（这玩意儿没法从 XAML 改）
        For Each Btn As MyRadioButton In PanFilter.Children
            Btn.LabText.Margin = New Thickness(-2, 0, 8, 0)
        Next

#If DEBUG Then
        BtnManageCheck.Visibility = Visibility.Visible
#End If

    End Sub
    ''' <summary>
    ''' 刷新 Mod 列表。
    ''' </summary>
    Public Sub ReloadModList(Optional ForceReload As Boolean = False)
        If LoaderRun(If(ForceReload, LoaderFolderRunType.ForceRun, LoaderFolderRunType.RunOnUpdated)) Then
            Log("[System] 已刷新 Mod 列表")
            Filter = FilterType.All
            PanBack.ScrollToHome()
            SearchBox.Text = ""
        End If
    End Sub
    '强制刷新
    Private Sub RefreshSelf() Implements IRefreshable.Refresh
        Refresh()
    End Sub
    Public Shared Sub Refresh()
        '强制刷新
        Try
            CompProjectCache.Clear()
            CompFilesCache.Clear()
            File.Delete(PathTemp & "Cache\LocalMod.json")
            Log("[Mod] 由于点击刷新按钮，清理本地 Mod 信息缓存")
        Catch ex As Exception
            Log(ex, "强制刷新时清理本地 Mod 信息缓存失败")
        End Try
        If FrmVersionMod IsNot Nothing Then FrmVersionMod.ReloadModList(True) '无需 Else，还没加载刷个鬼的新
        FrmVersionLeft.ItemMod.Checked = True
        Hint("正在刷新……", Log:=False)
    End Sub

    Private Sub LoaderInit() Handles Me.Initialized
        PageLoaderInit(Load, PanLoad, PanAllBack, Nothing, McModLoader, AddressOf LoadUIFromLoaderOutput, AutoRun:=False)
    End Sub
    Private Sub Load_Click(sender As Object, e As MouseButtonEventArgs) Handles Load.Click
        If McModLoader.State = LoadState.Failed Then
            LoaderRun(LoaderFolderRunType.ForceRun)
        End If
    End Sub
    Public Function LoaderRun(Type As LoaderFolderRunType) As Boolean
        Return LoaderFolderRun(McModLoader, PageVersionLeft.Version.PathIndie & "mods\", Type)
    End Function

#End Region

#Region "UI 化"

    ''' <summary>
    ''' 已加载的 Mod UI 缓存，不确保按显示顺序排列。Key 为 Mod 的 RawFileName。
    ''' </summary>
    Public ModItems As New Dictionary(Of String, MyLocalModItem)
    ''' <summary>
    ''' 将加载器结果的 Mod 列表加载为 UI。
    ''' </summary>
    Private Sub LoadUIFromLoaderOutput()
        Try
            '判断应该显示哪一个页面
            If McModLoader.Output.Any() Then
                PanBack.Visibility = Visibility.Visible
                PanEmpty.Visibility = Visibility.Collapsed
            Else
                PanEmpty.Visibility = Visibility.Visible
                PanBack.Visibility = Visibility.Collapsed
                Exit Sub
            End If
            '修改缓存
            ModItems.Clear()
            For Each ModEntity As McMod In McModLoader.Output
                ModItems(ModEntity.RawFileName) = McModListItem(ModEntity)
            Next
            '显示结果
            Filter = FilterType.All
            SearchBox.Text = "" '这会触发结果刷新，所以需要在 ModItems 更新之后，详见 #3124 的视频
            RefreshUI()
        Catch ex As Exception
            Log(ex, "加载 Mod 列表 UI 失败", LogLevel.Feedback)
        End Try
    End Sub
    Private Function McModListItem(Entry As McMod) As MyLocalModItem
        AniControlEnabled += 1
        Dim NewItem As New MyLocalModItem With {.SnapsToDevicePixels = True, .Entry = Entry,
            .ButtonHandler = AddressOf McModContent, .Checked = SelectedMods.Contains(Entry.RawFileName)}
        AddHandler Entry.OnCompUpdate, AddressOf NewItem.Refresh
        NewItem.Refresh()
        AniControlEnabled -= 1
        Return NewItem
    End Function
    Private Sub McModContent(sender As MyLocalModItem, e As EventArgs)
        '点击事件
        AddHandler sender.Changed, AddressOf CheckChanged
        AddHandler sender.Click, Sub(ss As MyLocalModItem, ee As EventArgs) ss.Checked = Not ss.Checked
        '图标按钮
        Dim BtnOpen As New MyIconButton With {.LogoScale = 1.05, .Logo = Logo.IconButtonOpen, .Tag = sender}
        BtnOpen.ToolTip = "打开文件位置"
        ToolTipService.SetPlacement(BtnOpen, Primitives.PlacementMode.Center)
        ToolTipService.SetVerticalOffset(BtnOpen, 30)
        ToolTipService.SetHorizontalOffset(BtnOpen, 2)
        AddHandler BtnOpen.Click, AddressOf Open_Click
        Dim BtnCont As New MyIconButton With {.LogoScale = 1, .Logo = Logo.IconButtonInfo, .Tag = sender}
        BtnCont.ToolTip = "详情"
        ToolTipService.SetPlacement(BtnCont, Primitives.PlacementMode.Center)
        ToolTipService.SetVerticalOffset(BtnCont, 30)
        ToolTipService.SetHorizontalOffset(BtnCont, 2)
        AddHandler BtnCont.Click, AddressOf Info_Click
        AddHandler sender.MouseRightButtonUp, AddressOf Info_Click
        Dim BtnDelete As New MyIconButton With {.LogoScale = 1, .Logo = Logo.IconButtonDelete, .Tag = sender}
        BtnDelete.ToolTip = "删除"
        ToolTipService.SetPlacement(BtnDelete, Primitives.PlacementMode.Center)
        ToolTipService.SetVerticalOffset(BtnDelete, 30)
        ToolTipService.SetHorizontalOffset(BtnDelete, 2)
        AddHandler BtnDelete.Click, AddressOf Delete_Click
        Dim BtnED As New MyIconButton With {.LogoScale = 1, .Logo = If(sender.Entry.State = McMod.McModState.Fine, Logo.IconButtonStop, Logo.IconButtonCheck), .Tag = sender}
        BtnED.ToolTip = If(sender.Entry.State = McMod.McModState.Fine, "禁用", "启用")
        ToolTipService.SetPlacement(BtnED, Primitives.PlacementMode.Center)
        ToolTipService.SetVerticalOffset(BtnED, 30)
        ToolTipService.SetHorizontalOffset(BtnED, 2)
        AddHandler BtnED.Click, AddressOf ED_Click
        If sender.Entry.State = McMod.McModState.Unavailable Then
            sender.Buttons = {BtnCont, BtnOpen, BtnDelete}
        Else
            sender.Buttons = {BtnCont, BtnOpen, BtnED, BtnDelete}
        End If
    End Sub

    ''' <summary>
    ''' 刷新整个 UI。
    ''' </summary>
    Public Sub RefreshUI()
        If PanList Is Nothing Then Exit Sub
        Dim ShowingMods = If(IsSearching, SearchResult, If(McModLoader.Output, New List(Of McMod))).Where(Function(m) CanPassFilter(m)).ToList
        '重新列出列表
        AniControlEnabled += 1
        If ShowingMods.Any() Then
            PanList.Visibility = Visibility.Visible
            PanList.Children.Clear()
            For Each TargetMod In ShowingMods
                Dim Item As MyLocalModItem = ModItems(TargetMod.RawFileName)
                Item.Checked = SelectedMods.Contains(TargetMod.RawFileName) '更新选中状态
                PanList.Children.Add(Item)
            Next
        Else
            PanList.Visibility = Visibility.Collapsed
        End If
        AniControlEnabled -= 1
        SelectedMods = SelectedMods.Where(Function(m) ShowingMods.Any(Function(s) s.RawFileName = m)).ToList '取消选中已经不显示的 Mod
        RefreshBars()
    End Sub

    ''' <summary>
    ''' 刷新顶栏和底栏显示。
    ''' </summary>
    Public Sub RefreshBars()
        '-----------------
        ' 顶部栏
        '-----------------

        '计数
        Dim AnyCount As Integer = 0
        Dim EnabledCount As Integer = 0
        Dim DisabledCount As Integer = 0
        Dim UpdateCount As Integer = 0
        Dim UnavalialeCount As Integer = 0
        For Each ModItem In If(IsSearching, SearchResult, If(McModLoader.Output, New List(Of McMod)))
            AnyCount += 1
            If ModItem.CanUpdate Then UpdateCount += 1
            If ModItem.State.Equals(McMod.McModState.Fine) Then EnabledCount += 1
            If ModItem.State.Equals(McMod.McModState.Disabled) Then DisabledCount += 1
            If ModItem.State.Equals(McMod.McModState.Unavailable) Then UnavalialeCount += 1
        Next
        '显示
        BtnFilterAll.Text = If(IsSearching, "搜索结果", "全部") & $" ({AnyCount})"
        BtnFilterCanUpdate.Text = $"可更新 ({UpdateCount})"
        BtnFilterCanUpdate.Visibility = If(Filter = FilterType.CanUpdate OrElse UpdateCount > 0, Visibility.Visible, Visibility.Collapsed)
        BtnFilterEnabled.Text = $"启用 ({EnabledCount})"
        BtnFilterEnabled.Visibility = If(Filter = FilterType.Enabled OrElse (EnabledCount > 0 AndAlso EnabledCount < AnyCount), Visibility.Visible, Visibility.Collapsed)
        BtnFilterDisabled.Text = $"禁用 ({DisabledCount})"
        BtnFilterDisabled.Visibility = If(Filter = FilterType.Disabled OrElse DisabledCount > 0, Visibility.Visible, Visibility.Collapsed)
        BtnFilterError.Text = $"错误 ({UnavalialeCount})"
        BtnFilterError.Visibility = If(Filter = FilterType.Unavailable OrElse UnavalialeCount > 0, Visibility.Visible, Visibility.Collapsed)

        '-----------------
        ' 底部栏
        '-----------------

        '计数
        Dim NewCount As Integer = SelectedMods.Count
        Dim Selected = NewCount > 0
        If Selected Then LabSelect.Text = $"已选择 {NewCount} 个文件" '取消所有选择时不更新数字
        '按钮可用性
        If Selected Then
            Dim HasUpdate As Boolean = False
            Dim HasEnabled As Boolean = False
            Dim HasDisabled As Boolean = False
            For Each ModEntity In McModLoader.Output
                If SelectedMods.Contains(ModEntity.RawFileName) Then
                    If ModEntity.CanUpdate Then HasUpdate = True
                    If ModEntity.State = McMod.McModState.Fine Then
                        HasEnabled = True
                    ElseIf ModEntity.State = McMod.McModState.Disabled Then
                        HasDisabled = True
                    End If
                End If
            Next
            BtnSelectDisable.IsEnabled = HasEnabled
            BtnSelectEnable.IsEnabled = HasDisabled
            BtnSelectUpdate.IsEnabled = HasUpdate
        End If
        '更新显示状态
        If AniControlEnabled = 0 Then
            PanListBack.Margin = New Thickness(0, 0, 0, If(Selected, 95, 15))
            If Selected Then
                '仅在数量增加时播放出现/跳跃动画
                If BottomBarShownCount >= NewCount Then
                    BottomBarShownCount = NewCount
                    Return
                Else
                    BottomBarShownCount = NewCount
                End If
                '出现/跳跃动画
                CardSelect.Visibility = Visibility.Visible
                AniStart({
                    AaOpacity(CardSelect, 1 - CardSelect.Opacity, 60),
                    AaTranslateY(CardSelect, -27 - TransSelect.Y, 120, Ease:=New AniEaseOutFluent(AniEasePower.Weak)),
                    AaTranslateY(CardSelect, 3, 150, 120, Ease:=New AniEaseInoutFluent(AniEasePower.Weak)),
                    AaTranslateY(CardSelect, -1, 90, 270, Ease:=New AniEaseInoutFluent(AniEasePower.Weak))
                }, "Mod Sidebar")
            Else
                '不重复播放隐藏动画
                If BottomBarShownCount = 0 Then Return
                BottomBarShownCount = 0
                '隐藏动画
                AniStart({
                    AaOpacity(CardSelect, -CardSelect.Opacity, 90),
                    AaTranslateY(CardSelect, -10 - TransSelect.Y, 90, Ease:=New AniEaseInFluent(AniEasePower.Weak)),
                    AaCode(Sub() CardSelect.Visibility = Visibility.Collapsed, After:=True)
                }, "Mod Sidebar")
            End If
        Else
            AniStop("Mod Sidebar")
            BottomBarShownCount = NewCount
            If Selected Then
                CardSelect.Visibility = Visibility.Visible
                CardSelect.Opacity = 1
                TransSelect.Y = -25
            Else
                CardSelect.Visibility = Visibility.Collapsed
                CardSelect.Opacity = 0
                TransSelect.Y = -10
            End If
        End If
    End Sub
    Private BottomBarShownCount As Integer = 0

#End Region

#Region "管理"

    ''' <summary>
    ''' 打开 Mods 文件夹。
    ''' </summary>
    Private Sub BtnManageOpen_Click(sender As Object, e As EventArgs) Handles BtnManageOpen.Click, BtnHintOpen.Click
        Try
            Directory.CreateDirectory(PageVersionLeft.Version.PathIndie & "mods\")
            OpenExplorer(PageVersionLeft.Version.PathIndie & "mods\")
        Catch ex As Exception
            Log(ex, "打开 Mods 文件夹失败", LogLevel.Msgbox)
        End Try
    End Sub

#If DEBUG Then
    ''' <summary>
    ''' 检查 Mod。
    ''' </summary>
    Private Sub BtnManageCheck_Click(sender As Object, e As EventArgs) Handles BtnManageCheck.Click
        Try
            Dim Result = McModCheck(PageVersionLeft.Version, McModLoader.Output)
            If Result.Any Then
                MyMsgBox(Join(Result, vbCrLf & vbCrLf), "Mod 检查结果")
            Else
                Hint("Mod 检查完成，未发现任何问题！", HintType.Finish)
            End If
        Catch ex As Exception
            Log(ex, "进行 Mod 检查时出错", LogLevel.Feedback)
        End Try
    End Sub
#End If

    ''' <summary>
    ''' 全选。
    ''' </summary>
    Private Sub BtnManageSelectAll_Click(sender As Object, e As MouseButtonEventArgs) Handles BtnManageSelectAll.Click
        ChangeAllSelected(SelectedMods.Count < PanList.Children.Count)
    End Sub

    ''' <summary>
    ''' 安装 Mod。
    ''' </summary>
    Private Sub BtnManageInstall_Click(sender As Object, e As MouseButtonEventArgs) Handles BtnManageInstall.Click, BtnHintInstall.Click
        Dim FileList = SelectFiles("Mod 文件(*.jar;*.litemod;*.disabled;*.old)|*.jar;*.litemod;*.disabled;*.old", "选择要安装的 Mod")
        If Not FileList.Any Then Return
        InstallMods(FileList)
    End Sub
    ''' <summary>
    ''' 尝试安装 Mod。
    ''' 返回输入的文件是否为一个 Mod 文件，仅用于判断拖拽行为。
    ''' </summary>
    Public Shared Function InstallMods(FilePathList As IEnumerable(Of String)) As Boolean
        Dim Extension As String = FilePathList.First.AfterLast(".").ToLower
        '检查文件扩展名
        If Not {"jar", "litemod", "disabled", "old"}.Any(Function(t) t = Extension) Then Return False
        Log("[System] 文件为 jar/litemod 格式，尝试作为 Mod 安装")
        '检查回收站：回收站中的文件有错误的文件名
        If FilePathList.First.Contains(":\$RECYCLE.BIN\") Then
            Hint("请先将文件从回收站还原，再尝试安装！", HintType.Critical)
            Return True
        End If
        '获取并检查目标版本
        Dim TargetVersion As McVersion = McVersionCurrent
        If FrmMain.PageCurrent = FormMain.PageType.VersionSetup Then TargetVersion = PageVersionLeft.Version
        If FrmMain.PageCurrent = FormMain.PageType.VersionSelect OrElse TargetVersion Is Nothing OrElse Not TargetVersion.Modable Then
            '正在选择版本，或当前版本不能安装 Mod
            Hint("若要安装 Mod，请先选择一个可以安装 Mod 的版本！")
        ElseIf Not (FrmMain.PageCurrent = FormMain.PageType.VersionSetup AndAlso FrmMain.PageCurrentSub = FormMain.PageSubType.VersionMod) Then
            '未处于 Mod 管理页面
            If MyMsgBox($"是否要将这{If(FilePathList.Count = 1, "个", "些")}文件作为 Mod 安装到 {TargetVersion.Name}？", "Mod 安装确认", "确定", "取消") = 1 Then GoTo Install
        Else
            '处于 Mod 管理页面
Install:
            Try
                For Each ModFile In FilePathList
                    Dim NewFileName = GetFileNameFromPath(ModFile).Replace(".disabled", "").Replace(".old", "")
                    If Not NewFileName.Contains(".") Then NewFileName += ".jar" '#4227
                    CopyFile(ModFile, TargetVersion.PathIndie & "mods\" & NewFileName)
                Next
                If FilePathList.Count = 1 Then
                    Hint($"已安装 {GetFileNameFromPath(FilePathList.First).Replace(".disabled", "").Replace(".old", "")}！", HintType.Finish)
                Else
                    Hint($"已安装 {FilePathList.Count} 个 Mod！", HintType.Finish)
                End If
                '刷新列表
                If FrmMain.PageCurrent = FormMain.PageType.VersionSetup AndAlso FrmMain.PageCurrentSub = FormMain.PageSubType.VersionMod Then
                    LoaderFolderRun(McModLoader, TargetVersion.PathIndie & "mods\", LoaderFolderRunType.ForceRun)
                End If
            Catch ex As Exception
                Log(ex, "复制 Mod 文件失败", LogLevel.Msgbox)
            End Try
        End If
        Return True
    End Function

    ''' <summary>
    ''' 下载 Mod。
    ''' </summary>
    Private Sub BtnManageDownload_Click(sender As Object, e As MouseButtonEventArgs) Handles BtnManageDownload.Click, BtnHintDownload.Click
        PageDownloadMod.TargetVersion = PageVersionLeft.Version '将当前版本设置为筛选器
        FrmMain.PageChange(FormMain.PageType.Download, FormMain.PageSubType.DownloadMod)
    End Sub

#End Region

#Region "选择"

    '选择的 Mod 的路径（不含 .disabled 和 .old）
    Public SelectedMods As New List(Of String)

    '单项切换选择状态
    Public Sub CheckChanged(sender As MyLocalModItem, e As RouteEventArgs)
        If AniControlEnabled <> 0 Then Return
        '更新选择了的内容
        Dim SelectedKey As String = sender.Entry.RawFileName
        If sender.Checked Then
            If Not SelectedMods.Contains(SelectedKey) Then SelectedMods.Add(SelectedKey)
        Else
            SelectedMods.Remove(SelectedKey)
        End If
        RefreshBars()
    End Sub

    '切换所有项的选择状态
    Private Sub ChangeAllSelected(Value As Boolean)
        AniControlEnabled += 1
        SelectedMods.Clear()
        For Each Item As MyLocalModItem In ModItems.Values
            '#4992，Mod 从过滤器看可能不应在列表中，但因为刚切换状态所以依然保留在列表中，所以应该从列表 UI 判断，而非从过滤器判断
            Dim ShouldSelected As Boolean = Value AndAlso PanList.Children.Contains(Item)
            Item.Checked = ShouldSelected
            If ShouldSelected Then SelectedMods.Add(Item.Entry.RawFileName)
        Next
        AniControlEnabled -= 1
        RefreshBars()
    End Sub
    Private Sub UnselectedAllWithAnimation() Handles Load.StateChanged, Me.PageExit
        Dim CacheAniControlEnabled = AniControlEnabled
        AniControlEnabled = 0
        ChangeAllSelected(False)
        AniControlEnabled += CacheAniControlEnabled
    End Sub
    Private Sub PageVersionMod_KeyDown(sender As Object, e As KeyEventArgs) Handles Me.KeyDown
        If My.Computer.Keyboard.CtrlKeyDown AndAlso e.Key = Key.A Then ChangeAllSelected(True)
    End Sub

#End Region

#Region "筛选"

    Private _Filter As FilterType = FilterType.All
    Private Property Filter As FilterType
        Get
            Return _Filter
        End Get
        Set(value As FilterType)
            If _Filter = value Then Return
            _Filter = value
            Select Case value
                Case FilterType.All
                    BtnFilterAll.Checked = True
                Case FilterType.Enabled
                    BtnFilterEnabled.Checked = True
                Case FilterType.Disabled
                    BtnFilterDisabled.Checked = True
                Case FilterType.CanUpdate
                    BtnFilterCanUpdate.Checked = True
                Case Else
                    BtnFilterError.Checked = True
            End Select
            RefreshUI()
        End Set
    End Property
    Private Enum FilterType As Integer
        All = 0
        Enabled = 1
        Disabled = 2
        CanUpdate = 3
        Unavailable = 4
    End Enum

    ''' <summary>
    ''' 检查该 Mod 项是否符合当前筛选的类别。
    ''' </summary>
    Private Function CanPassFilter(CheckingMod As McMod) As Boolean
        Select Case Filter
            Case FilterType.All
                Return True
            Case FilterType.Enabled
                Return CheckingMod.State = McMod.McModState.Fine
            Case FilterType.Disabled
                Return CheckingMod.State = McMod.McModState.Disabled
            Case FilterType.CanUpdate
                Return CheckingMod.CanUpdate
            Case FilterType.Unavailable
                Return CheckingMod.State = McMod.McModState.Unavailable
            Case Else
                Return False
        End Select
    End Function

    '点击筛选项触发的改变
    Private Sub ChangeFilter(sender As MyRadioButton, raiseByMouse As Boolean) Handles BtnFilterAll.Check, BtnFilterCanUpdate.Check, BtnFilterDisabled.Check, BtnFilterEnabled.Check, BtnFilterError.Check
        Filter = sender.Tag
        RefreshUI()
    End Sub

#End Region

#Region "下边栏"

    '启用 / 禁用
    Private Sub BtnSelectED_Click(sender As MyIconTextButton, e As RouteEventArgs) Handles BtnSelectEnable.Click, BtnSelectDisable.Click
        EDMods(McModLoader.Output.Where(Function(m) SelectedMods.Contains(m.RawFileName)),
               Not sender.Equals(BtnSelectDisable))
        ChangeAllSelected(False)
    End Sub
    Private Sub EDMods(ModList As IEnumerable(Of McMod), IsEnable As Boolean)
        Dim IsSuccessful As Boolean = True
        For Each ModE In ModList.ToList
            Dim ModEntity = ModE '仅用于去除迭代变量无法修改的限制
            Dim NewPath As String = Nothing
            If ModEntity.State = McMod.McModState.Fine AndAlso Not IsEnable Then
                '禁用
                NewPath = ModEntity.Path & If(File.Exists(ModEntity.Path & ".old"), ".old", ".disabled")
            ElseIf ModEntity.State = McMod.McModState.Disabled AndAlso IsEnable Then
                '启用
                NewPath = ModEntity.RawPath
            Else
                Continue For
            End If
            '重命名
            Try
                If File.Exists(NewPath) Then
                    If File.Exists(ModEntity.Path) Then
                        '同时存在两个名称的 Mod
                        If GetFileMD5(ModEntity.Path) <> GetFileMD5(NewPath) Then
                            MyMsgBox($"目前同时存在启用和禁用的两个 Mod 文件：{vbCrLf} - {NewPath}{vbCrLf} - {ModEntity.Path}{vbCrLf}{vbCrLf}注意，这两个文件的内容并不相同。{vbCrLf}在手动删除或重命名其中一个文件后，才能继续操作。", "存在文件冲突")
                            Continue For
                        End If
                    Else
                        '已经重命名过了
                        Log("[Mod] Mod 的状态已被切换", LogLevel.Debug)
                        Continue For
                    End If
                End If
                File.Delete(NewPath)
                FileSystem.Rename(ModEntity.Path, NewPath)
            Catch ex As FileNotFoundException
                Log(ex, $"未找到需要重命名的 Mod（{If(ModEntity.Path, "null")}）", LogLevel.Feedback)
                ReloadModList(True)
                Return
            Catch ex As Exception
                Log(ex, $"重命名 Mod 失败（{If(ModEntity.Path, "null")}）")
                IsSuccessful = False
            End Try
            '更改 Loader 中的列表
            Dim NewModEntity As New McMod(NewPath)
            NewModEntity.FromJson(ModEntity.ToJson)
            If McModLoader.Output.Contains(ModEntity) Then
                Dim IndexOfLoader As Integer = McModLoader.Output.IndexOf(ModEntity)
                McModLoader.Output.RemoveAt(IndexOfLoader)
                McModLoader.Output.Insert(IndexOfLoader, NewModEntity)
            End If
            If SearchResult IsNot Nothing AndAlso SearchResult.Contains(ModEntity) Then '#4862
                Dim IndexOfResult As Integer = SearchResult.IndexOf(ModEntity)
                SearchResult.Remove(ModEntity)
                SearchResult.Insert(IndexOfResult, NewModEntity)
            End If
            '更改 UI 中的列表
            Dim NewItem As MyLocalModItem = McModListItem(NewModEntity)
            ModItems(ModEntity.RawFileName) = NewItem
            Dim IndexOfUi As Integer = PanList.Children.IndexOf(PanList.Children.OfType(Of MyLocalModItem).FirstOrDefault(Function(i) i.Entry Is ModEntity))
            If IndexOfUi = -1 Then Continue For '因为未知原因 Mod 的状态已经切换完了
            PanList.Children.RemoveAt(IndexOfUi)
            PanList.Children.Insert(IndexOfUi, NewItem)
        Next
        If IsSuccessful Then
            RefreshBars()
        Else
            Hint("由于文件被占用，Mod 的状态切换失败，请尝试关闭正在运行的游戏后再试！", HintType.Critical)
            ReloadModList(True)
        End If
        LoaderRun(LoaderFolderRunType.UpdateOnly)
    End Sub

    '更新
    Private Sub BtnSelectUpdate_Click() Handles BtnSelectUpdate.Click
        Dim UpdateList As List(Of McMod) = McModLoader.Output.Where(Function(m) SelectedMods.Contains(m.RawFileName) AndAlso m.CanUpdate).ToList()
        If Not UpdateList.Any() Then Return
        UpdateMods(UpdateList)
        ChangeAllSelected(False)
    End Sub
    ''' <summary>
    ''' 记录正在进行 Mod 更新的 mods 文件夹路径。
    ''' </summary>
    Public Shared UpdatingVersions As New List(Of String)
    Public Sub UpdateMods(ModList As IEnumerable(Of McMod))
        '更新前警告
        If Not Setup.Get("HintUpdateMod") OrElse ModList.Count >= 15 Then
            If MyMsgBox($"新版本 Mod 可能不兼容旧存档或者其他 Mod，这可能导致游戏崩溃，甚至永久损坏存档！{vbCrLf}如果你在游玩整合包，请千万不要自行更新 Mod！{vbCrLf}{vbCrLf}在更新前，请先备份存档，并检查 Mod 的更新日志。{vbCrLf}如果更新后出现问题，你也可以在回收站找回更新前的 Mod。", "Mod 更新警告", "我已了解风险，继续更新", "取消", IsWarn:=True) = 1 Then
                Setup.Set("HintUpdateMod", True)
            Else
                Exit Sub
            End If
        End If
        Try
            '构造下载信息
            ModList = ModList.ToList() '防止刷新影响迭代器
            Dim FileList As New List(Of NetFile)
            Dim FileCopyList As New Dictionary(Of String, String)
            For Each Entry As McMod In ModList
                Dim File As CompFile = Entry.UpdateFile
                If Not File.Available Then Continue For
                '确认更新后的文件名
                Dim CurrentReplaceName = Entry.CompFile.FileName.Replace(".jar", "").Replace(".old", "").Replace(".disabled", "")
                Dim NewestReplaceName = Entry.UpdateFile.FileName.Replace(".jar", "").Replace(".old", "").Replace(".disabled", "")
                Dim CurrentSegs = CurrentReplaceName.Split("-"c).ToList()
                Dim NewestSegs = NewestReplaceName.Split("-"c).ToList()
                Dim Shortened As Boolean = False
                Do While True '移除前导相同部分（不能移除所有相同项，这会导致例如 1.2-forge-2 和 1.3-forge-3 中间的 forge 被去掉，导致尝试替换 1.2-2）
                    If Not CurrentSegs.Any() OrElse Not NewestSegs.Any() Then Exit Do
                    If CurrentSegs.First <> NewestSegs.First Then Exit Do
                    CurrentSegs.RemoveAt(0)
                    NewestSegs.RemoveAt(0)
                    Shortened = True
                Loop
                Do While True '移除后导相同部分
                    If Not CurrentSegs.Any() OrElse Not NewestSegs.Any() Then Exit Do
                    If CurrentSegs.Last <> NewestSegs.Last Then Exit Do
                    CurrentSegs.RemoveAt(CurrentSegs.Count - 1)
                    NewestSegs.RemoveAt(NewestSegs.Count - 1)
                    Shortened = True
                Loop
                If Shortened AndAlso CurrentSegs.Any() AndAlso NewestSegs.Any() Then
                    CurrentReplaceName = Join(CurrentSegs, "-")
                    NewestReplaceName = Join(NewestSegs, "-")
                End If
                '添加到下载列表
                Dim TempAddress As String = PathTemp & "DownloadedMods\" & Entry.FileName.Replace(CurrentReplaceName, NewestReplaceName)
                Dim RealAddress As String = GetPathFromFullPath(Entry.Path) & Entry.FileName.Replace(CurrentReplaceName, NewestReplaceName)
                FileList.Add(File.ToNetFile(TempAddress))
                FileCopyList(TempAddress) = RealAddress
            Next
            '构造加载器
            Dim InstallLoaders As New List(Of LoaderBase)
            Dim FinishedFileNames As New List(Of String)
            InstallLoaders.Add(New LoaderDownload("下载新版 Mod 文件", FileList) With {.ProgressWeight = ModList.Count * 1.5}) '每个 Mod 需要 1.5s
            InstallLoaders.Add(New LoaderTask(Of Integer, Integer)("替换旧版 Mod 文件",
            Sub()
                Try
                    For Each Entry As McMod In ModList
                        If File.Exists(Entry.Path) Then
                            My.Computer.FileSystem.DeleteFile(Entry.Path, FileIO.UIOption.OnlyErrorDialogs, FileIO.RecycleOption.SendToRecycleBin)
                        Else
                            Log($"[Mod] 未找到更新前的 Mod 文件，跳过对它的删除：{Entry.Path}", LogLevel.Debug)
                        End If
                    Next
                    For Each Entry As KeyValuePair(Of String, String) In FileCopyList
                        If File.Exists(Entry.Value) Then
                            My.Computer.FileSystem.DeleteFile(Entry.Value, FileIO.UIOption.OnlyErrorDialogs, FileIO.RecycleOption.SendToRecycleBin)
                            Log($"[Mod] 更新后的 Mod 文件已存在，将会把它放入回收站：{Entry.Value}", LogLevel.Debug)
                        End If
                        If Directory.Exists(GetPathFromFullPath(Entry.Value)) Then
                            File.Move(Entry.Key, Entry.Value)
                            FinishedFileNames.Add(GetFileNameFromPath(Entry.Value))
                        Else
                            Log($"[Mod] 更新后的目标文件夹已被删除：{Entry.Value}", LogLevel.Debug)
                        End If
                    Next
                Catch ex As OperationCanceledException
                    Log(ex, "替换旧版 Mod 文件时被主动取消")
                End Try
            End Sub))
            '结束处理
            Dim Loader As New LoaderCombo(Of IEnumerable(Of McMod))("Mod 更新：" & PageVersionLeft.Version.Name, InstallLoaders)
            Dim PathMods As String = PageVersionLeft.Version.PathIndie & "mods\"
            Loader.OnStateChanged =
            Sub()
                '结果提示
                Select Case Loader.State
                    Case LoadState.Finished
                        Select Case FinishedFileNames.Count
                            Case 0 '一般是由于 Mod 文件被占用，然后玩家主动取消
                                Log($"[Mod] 没有 Mod 被成功更新")
                            Case 1
                                Hint($"已成功更新 {FinishedFileNames.Single}！", HintType.Finish)
                            Case Else
                                Hint($"已成功更新 {FinishedFileNames.Count} 个 Mod！", HintType.Finish)
                        End Select
                    Case LoadState.Failed
                        Hint("Mod 更新失败：" & GetExceptionSummary(Loader.Error), HintType.Critical)
                    Case LoadState.Aborted
                        Hint("Mod 更新已中止！", HintType.Info)
                    Case Else
                        Exit Sub
                End Select
                Log($"[Mod] 已从正在进行 Mod 更新的文件夹列表移除：{PathMods}")
                UpdatingVersions.Remove(PathMods)
                '清理缓存
                RunInNewThread(
                Sub()
                    Try
                        For Each TempFile In FileCopyList.Keys
                            If File.Exists(TempFile) Then File.Delete(TempFile)
                        Next
                    Catch ex As Exception
                        Log(ex, "清理 Mod 更新缓存失败")
                    End Try
                End Sub, "Clean Mod Update Cache", ThreadPriority.BelowNormal)
            End Sub
            '启动加载器
            Log($"[Mod] 开始更新 {ModList.Count} 个 Mod：{PathMods}")
            UpdatingVersions.Add(PathMods)
            Loader.Start()
            LoaderTaskbarAdd(Loader)
            FrmMain.BtnExtraDownload.ShowRefresh()
            FrmMain.BtnExtraDownload.Ribble()
            ReloadModList(True)
        Catch ex As Exception
            Log(ex, "初始化 Mod 更新失败")
        End Try
    End Sub

    '删除
    Private Sub BtnSelectDelete_Click() Handles BtnSelectDelete.Click
        DeleteMods(McModLoader.Output.Where(Function(m) SelectedMods.Contains(m.RawFileName)))
        ChangeAllSelected(False)
    End Sub
    Private Sub DeleteMods(ModList As IEnumerable(Of McMod))
        Try
            Dim IsSuccessful As Boolean = True
            Dim IsShiftPressed As Boolean = My.Computer.Keyboard.ShiftKeyDown
            '确认需要删除的文件
            ModList = ModList.SelectMany(
            Function(Target As McMod)
                If Target.State = McMod.McModState.Fine Then
                    Return {Target.Path, Target.Path & If(File.Exists(Target.Path & ".old"), ".old", ".disabled")}
                Else
                    Return {Target.Path, Target.RawPath}
                End If
            End Function).Distinct.Where(Function(m) File.Exists(m)).Select(Function(m) New McMod(m)).ToList()
            '实际删除文件
            For Each ModEntity In ModList
                '删除
                Try
                    If IsShiftPressed Then
                        File.Delete(ModEntity.Path)
                    Else
                        My.Computer.FileSystem.DeleteFile(ModEntity.Path, FileIO.UIOption.OnlyErrorDialogs, FileIO.RecycleOption.SendToRecycleBin)
                    End If
                Catch ex As OperationCanceledException
                    Log(ex, "删除 Mod 被主动取消")
                    ReloadModList(True)
                    Return
                Catch ex As Exception
                    Log(ex, $"删除 Mod 失败（{ModEntity.Path}）", LogLevel.Msgbox)
                    IsSuccessful = False
                End Try
                '取消选中
                SelectedMods.Remove(ModEntity.RawFileName)
                '更改 Loader 和 UI 中的列表
                McModLoader.Output.Remove(ModEntity)
                SearchResult?.Remove(ModEntity)
                ModItems.Remove(ModEntity.RawFileName)
                Dim IndexOfUi As Integer = PanList.Children.IndexOf(PanList.Children.OfType(Of MyLocalModItem).FirstOrDefault(Function(i) i.Entry.Equals(ModEntity)))
                If IndexOfUi >= 0 Then PanList.Children.RemoveAt(IndexOfUi)
            Next
            RefreshBars()
            If Not IsSuccessful Then
                Hint("由于文件被占用，Mod 删除失败，请尝试关闭正在运行的游戏后再试！", HintType.Critical)
                ReloadModList(True)
            ElseIf PanList.Children.Count = 0 Then
                ReloadModList(True) '删除了全部文件
            Else
                RefreshBars()
            End If
            '显示结果提示
            If Not IsSuccessful Then Exit Sub
            If IsShiftPressed Then
                If ModList.Count = 1 Then
                    Hint($"已彻底删除 {ModList.Single.FileName}！", HintType.Finish)
                Else
                    Hint($"已彻底删除 {ModList.Count} 个文件！", HintType.Finish)
                End If
            Else
                If ModList.Count = 1 Then
                    Hint($"已将 {ModList.Single.FileName} 删除到回收站！", HintType.Finish)
                Else
                    Hint($"已将 {ModList.Count} 个文件删除到回收站！", HintType.Finish)
                End If
            End If
        Catch ex As OperationCanceledException
            Log(ex, "删除 Mod 被主动取消")
            ReloadModList(True)
        Catch ex As Exception
            Log(ex, "删除 Mod 出现未知错误", LogLevel.Feedback)
            ReloadModList(True)
        End Try
        LoaderRun(LoaderFolderRunType.UpdateOnly)
    End Sub

    '取消选择
    Private Sub BtnSelectCancel_Click() Handles BtnSelectCancel.Click
        ChangeAllSelected(False)
    End Sub

#End Region

#Region "单个 Mod 项"

    '详情
    Public Sub Info_Click(sender As Object, e As EventArgs)
        Try

            Dim ModEntry As McMod = CType(If(TypeOf sender Is MyIconButton, sender.Tag, sender), MyLocalModItem).Entry
            '加载失败信息
            If ModEntry.State = McMod.McModState.Unavailable Then
                MyMsgBox("无法读取此 Mod 的信息。" & vbCrLf & vbCrLf & "详细的错误信息：" & GetExceptionDetail(ModEntry.FileUnavailableReason), "Mod 读取失败")
                Return
            End If
            If ModEntry.Comp IsNot Nothing Then
                '跳转到 Mod 下载页面
                FrmMain.PageChange(New FormMain.PageStackData With {.Page = FormMain.PageType.CompDetail,
                    .Additional = {ModEntry.Comp, New List(Of String), PageVersionLeft.Version.Version.McName,
                        If(PageVersionLeft.Version.Version.HasForge, CompModLoaderType.Forge,
                        If(PageVersionLeft.Version.Version.HasNeoForge, CompModLoaderType.NeoForge,
                        If(PageVersionLeft.Version.Version.HasFabric, CompModLoaderType.Fabric, CompModLoaderType.Any)))}})
            Else
                '获取信息
                Dim ContentLines As New List(Of String)
                If ModEntry.Description IsNot Nothing Then ContentLines.Add(ModEntry.Description & vbCrLf)
                If ModEntry.Authors IsNot Nothing Then ContentLines.Add("作者：" & ModEntry.Authors)
                ContentLines.Add("文件：" & ModEntry.FileName & "（" & GetString(New FileInfo(ModEntry.Path).Length) & "）")
                If ModEntry.Version IsNot Nothing Then ContentLines.Add("版本：" & ModEntry.Version)
                Dim DebugInfo As New List(Of String)
                If ModEntry.ModId IsNot Nothing Then
                    DebugInfo.Add("Mod ID：" & ModEntry.ModId)
                End If
                If ModEntry.Dependencies.Any Then
                    DebugInfo.Add("依赖于：")
                    For Each Dep In ModEntry.Dependencies
                        DebugInfo.Add(" - " & Dep.Key & If(Dep.Value Is Nothing, "", "，版本：" & Dep.Value))
                    Next
                End If
                If DebugInfo.Any Then
                    ContentLines.Add("")
                    ContentLines.AddRange(DebugInfo)
                End If
                '获取用于搜索的 Mod 名称
                Dim ModOriginalName As String = ModEntry.Name.Replace(" ", "+")
                Dim ModSearchName As String = ModOriginalName.Substring(0, 1)
                For i = 1 To ModOriginalName.Count - 1
                    Dim IsLastLower As Boolean = ModOriginalName(i - 1).ToString.ToLower.Equals(ModOriginalName(i - 1).ToString)
                    Dim IsCurrentLower As Boolean = ModOriginalName(i).ToString.ToLower.Equals(ModOriginalName(i).ToString)
                    If IsLastLower AndAlso Not IsCurrentLower Then
                        '上一个字母为小写，这一个字母为大写
                        ModSearchName += "+"
                    End If
                    ModSearchName += ModOriginalName(i)
                Next
                ModSearchName = ModSearchName.Replace("++", "+").Replace("pti+Fine", "ptiFine")
                '显示
                If ModEntry.Url Is Nothing Then
                    If MyMsgBox(Join(ContentLines, vbCrLf), ModEntry.Name, "百科搜索", "返回") = 1 Then
                        OpenWebsite("https://www.mcmod.cn/s?key=" & ModSearchName & "&site=all&filter=0")
                    End If
                Else
                    Select Case MyMsgBox(Join(ContentLines, vbCrLf), ModEntry.Name, "打开官网", "百科搜索", "返回")
                        Case 1
                            OpenWebsite(ModEntry.Url)
                        Case 2
                            OpenWebsite("https://www.mcmod.cn/s?key=" & ModSearchName & "&site=all&filter=0")
                    End Select
                End If
            End If
        Catch ex As Exception
            Log(ex, "获取 Mod 详情失败", LogLevel.Feedback)
        End Try
    End Sub
    '打开文件所在的位置
    Public Sub Open_Click(sender As MyIconButton, e As EventArgs)
        Try
            Dim ListItem As MyLocalModItem = sender.Tag
            OpenExplorer(ListItem.Entry.Path)
        Catch ex As Exception
            Log(ex, "打开 Mod 文件位置失败", LogLevel.Feedback)
        End Try
    End Sub
    '删除
    Public Sub Delete_Click(sender As MyIconButton, e As EventArgs)
        Dim ListItem As MyLocalModItem = sender.Tag
        DeleteMods({ListItem.Entry})
    End Sub
    '启用 / 禁用
    Public Sub ED_Click(sender As MyIconButton, e As EventArgs)
        Dim ListItem As MyLocalModItem = sender.Tag
        EDMods({ListItem.Entry}, ListItem.Entry.State = McMod.McModState.Disabled)
    End Sub

#End Region

#Region "搜索"

    Public ReadOnly Property IsSearching As Boolean
        Get
            Return Not String.IsNullOrWhiteSpace(SearchBox.Text)
        End Get
    End Property
    Private SearchResult As List(Of McMod)
    Public Sub SearchRun() Handles SearchBox.TextChanged
        If IsSearching Then
            '构造请求
            Dim QueryList As New List(Of SearchEntry(Of McMod))
            For Each Entry As McMod In McModLoader.Output
                Dim SearchSource As New List(Of KeyValuePair(Of String, Double))
                SearchSource.Add(New KeyValuePair(Of String, Double)(Entry.Name, 1))
                SearchSource.Add(New KeyValuePair(Of String, Double)(Entry.FileName, 1))
                If Entry.Version IsNot Nothing Then
                    SearchSource.Add(New KeyValuePair(Of String, Double)(Entry.Version, 0.2))
                End If
                If Entry.Description IsNot Nothing AndAlso Entry.Description <> "" Then
                    SearchSource.Add(New KeyValuePair(Of String, Double)(Entry.Description, 0.4))
                End If
                If Entry.Comp IsNot Nothing Then
                    If Entry.Comp.RawName <> Entry.Name Then SearchSource.Add(New KeyValuePair(Of String, Double)(Entry.Comp.RawName, 1))
                    If Entry.Comp.TranslatedName <> Entry.Comp.RawName Then SearchSource.Add(New KeyValuePair(Of String, Double)(Entry.Comp.TranslatedName, 1))
                    If Entry.Comp.Description <> Entry.Description Then SearchSource.Add(New KeyValuePair(Of String, Double)(Entry.Comp.Description, 0.4))
                    SearchSource.Add(New KeyValuePair(Of String, Double)(String.Join("", Entry.Comp.Tags), 0.2))
                End If
                QueryList.Add(New SearchEntry(Of McMod) With {.Item = Entry, .SearchSource = SearchSource})
            Next
            '进行搜索
            SearchResult = Search(QueryList, SearchBox.Text, MaxBlurCount:=6, MinBlurSimilarity:=0.35).Select(Function(r) r.Item).ToList
        End If
        RefreshUI()
    End Sub

#End Region

End Class