Public Class PageDownloadCompDetail
    Private CompItem As MyCompItem = Nothing

#Region "加载器"

    Private CompFileLoader As New LoaderTask(Of Integer, List(Of CompFile))(
        "Comp File", Sub(Task As LoaderTask(Of Integer, List(Of CompFile))) Task.Output = CompFilesGet(Project.Id, Project.FromCurseForge))

    '初始化加载器信息
    Private Sub PageDownloadCompDetail_Inited(sender As Object, e As EventArgs) Handles Me.Initialized
        Project = FrmMain.PageCurrent.Additional(0)
        TargetVersion = FrmMain.PageCurrent.Additional(2)
        TargetLoader = FrmMain.PageCurrent.Additional(3)
        PageLoaderInit(Load, PanLoad, PanMain, CardIntro, CompFileLoader, AddressOf Load_OnFinish)
    End Sub
    Private Sub PageDownloadCompDetail_Loaded(sender As Object, e As EventArgs) Handles Me.Loaded
        'Initialized 只会执行一次
        Project = FrmMain.PageCurrent.Additional(0)
        TargetVersion = FrmMain.PageCurrent.Additional(2)
        TargetLoader = FrmMain.PageCurrent.Additional(3)
    End Sub
    Private Project As CompProject
    Private TargetVersion As String, TargetLoader As CompModLoaderType
    '自动重试
    Private Sub Load_State(sender As Object, state As MyLoading.MyLoadingState, oldState As MyLoading.MyLoadingState) Handles Load.StateChanged
        Select Case CompFileLoader.State
            Case LoadState.Failed
                Dim ErrorMessage As String = ""
                If CompFileLoader.Error IsNot Nothing Then ErrorMessage = CompFileLoader.Error.Message
                If ErrorMessage.Contains("不是有效的 json 文件") Then
                    Log("[Comp] 下载的文件 json 列表损坏，已自动重试", LogLevel.Debug)
                    PageLoaderRestart()
                End If
        End Select
    End Sub
    '结果 UI 化
    Private Class VersionSorterWithSelect
        Implements IComparer(Of String)
        Public Top As String = ""
        Public Function Compare(x As String, y As String) As Integer Implements IComparer(Of String).Compare
            If x = y Then Return 0
            If x = Top Then Return -1
            If y = Top Then Return 1
            Return -VersionSortInteger(x, y)
        End Function
        Public Sub New(Optional Top As String = "")
            Me.Top = If(Top, "")
        End Sub
    End Class
    Private Sub Load_OnFinish()
        Dim TargetCardName As String = If(TargetVersion <> "" OrElse TargetLoader <> CompModLoaderType.Any,
            $"所选版本：{TargetVersion} {If(TargetLoader <> CompModLoaderType.Any, TargetLoader, "")}", "")
        '初始化字典
        Dim Dict As New SortedDictionary(Of String, List(Of CompFile))(New VersionSorterWithSelect(TargetCardName))
        Dict.Add("未知版本", New List(Of CompFile))
        For Each Version As CompFile In CompFileLoader.Output
            For Each GameVersion In Version.GameVersions
                '决定添加到哪个版本
                Dim TargetCard As String
                If GameVersion Is Nothing Then
                    TargetCard = "未知版本"
                ElseIf GameVersion.Contains("w") OrElse GameVersion.Contains("pre") OrElse GameVersion.Contains("rc") Then
                    TargetCard = "快照版本"
                ElseIf GameVersion.StartsWith("1.0") Then
                    TargetCard = "远古版本"
                Else
                    TargetCard = GameVersion
                End If
                '实际进行添加
                If Not Dict.ContainsKey(TargetCard) Then Dict.Add(TargetCard, New List(Of CompFile))
                If Not Dict(TargetCard).Contains(Version) Then Dict(TargetCard).Add(Version)
            Next
        Next
        '添加筛选的版本的卡片
        If TargetCardName <> "" Then
            Dict.Add(TargetCardName, New List(Of CompFile))
            For Each Version As CompFile In CompFileLoader.Output
                If Version.GameVersions.Contains(TargetVersion) AndAlso
                   (TargetLoader = CompModLoaderType.Any OrElse Version.ModLoaders.Contains(TargetLoader)) Then
                    If Not Dict(TargetCardName).Contains(Version) Then Dict(TargetCardName).Add(Version)
                End If
            Next
        End If

#Region "转化为 UI"
        Try
            '清空当前
            PanMain.Children.Clear()
            '转化为 UI
            For Each Pair As KeyValuePair(Of String, List(Of CompFile)) In Dict
                If Pair.Value.Count = 0 Then Continue For
                '增加卡片
                Dim NewCard As New MyCard With {.Title = Pair.Key, .Margin = New Thickness(0, 0, 0, 15), .SwapType = If(Project.Type = CompType.ModPack, 9, 8)} 'FUTURE: Res
                Dim NewStack As New StackPanel With {.Margin = New Thickness(20, MyCard.SwapedHeight, 18, 0), .VerticalAlignment = VerticalAlignment.Top, .RenderTransform = New TranslateTransform(0, 0), .Tag = Pair.Value}
                NewCard.Children.Add(NewStack)
                NewCard.SwapControl = NewStack
                PanMain.Children.Add(NewCard)
                '确定卡片是否展开
                If Pair.Key = TargetCardName OrElse
                   (FrmMain.PageCurrent.Additional IsNot Nothing AndAlso '#2761
                   CType(FrmMain.PageCurrent.Additional(1), List(Of String)).Contains(NewCard.Title)) Then
                    MyCard.StackInstall(NewStack, If(Project.Type = CompType.ModPack, 9, 8), Pair.Key) 'FUTURE: Res
                Else
                    NewCard.IsSwaped = True
                End If
                '增加提示
                If Pair.Key = "未知版本" Then
                    NewStack.Children.Add(New MyHint With {.Text = "由于 API 的版本信息更新缓慢，可能无法识别刚更新不久的 MC 版本，只需等待几天即可自动恢复正常。", .IsWarn = False, .Margin = New Thickness(0, 0, 0, 7)})
                End If
            Next
            '如果只有一张卡片，展开第一张卡片
            If PanMain.Children.Count = 1 Then
                CType(PanMain.Children(0), MyCard).IsSwaped = False
            End If
        Catch ex As Exception
            Log(ex, "可视化工程下载列表出错", LogLevel.Feedback)
        End Try
#End Region

    End Sub

#End Region

    Private IsFirstInit As Boolean = True
    Public Sub Init() Handles Me.PageEnter
        AniControlEnabled += 1
        Project = FrmMain.PageCurrent.Additional(0)
        PanBack.ScrollToHome()

        '重启加载器
        If IsFirstInit Then
            '在 Me.Initialized 已经初始化了加载器，不再重复初始化
            IsFirstInit = False
        Else
            PageLoaderRestart(IsForceRestart:=True)
        End If

        '放置当前工程
        If CompItem IsNot Nothing Then PanIntro.Children.Remove(CompItem)
        CompItem = Project.ToCompItem(True, True)
        CompItem.CanInteraction = False
        CompItem.Margin = New Thickness(-7, -7, 0, 8)
        PanIntro.Children.Insert(0, CompItem)

        '决定按钮显示
        BtnIntroWeb.Text = If(Project.FromCurseForge, "转到 CurseForge", "转到 Modrinth")
        BtnIntroWiki.Visibility = If(Project.WikiId = 0, Visibility.Collapsed, Visibility.Visible)

        AniControlEnabled -= 1
    End Sub

    '整合包下载（安装）
    Public Sub Install_Click(sender As MyListItem, e As EventArgs)
        Try

            '获取基本信息
            Dim File As CompFile = sender.Tag
            Dim LoaderName As String = $"{If(Project.FromCurseForge, "CurseForge", "Modrinth")} 整合包下载：{Project.TranslatedName} "

            '获取版本名
            Dim PackName As String = Project.TranslatedName.Replace(".zip", "").Replace(".rar", "").Replace(".mrpack", "").Replace("\", "＼").Replace("/", "／").Replace("|", "｜").Replace(":", "：").Replace("<", "＜").Replace(">", "＞").Replace("*", "＊").Replace("?", "？").Replace("""", "").Replace("： ", "：")
            Dim Validate As New ValidateFolderName(PathMcFolder & "versions")
            If Validate.Validate(PackName) <> "" Then PackName = ""
            Dim VersionName As String = MyMsgBoxInput("输入版本名称", "", PackName, New ObjectModel.Collection(Of Validate) From {Validate})
            If String.IsNullOrEmpty(VersionName) Then Exit Sub

            '构造步骤加载器
            Dim Loaders As New List(Of LoaderBase)
            Dim Target As String = $"{PathMcFolder}versions\{VersionName}\原始整合包.{If(Project.FromCurseForge, "zip", "mrpack")}"
            Dim LogoFileAddress As String = PathTemp & "CompLogo\" & GetHash(CompItem.Logo) & ".png"
            Loaders.Add(New LoaderDownload("下载整合包文件", New List(Of NetFile) From {File.ToNetFile(Target)}) With {.ProgressWeight = 10, .Block = True})
            Loaders.Add(New LoaderTask(Of Integer, Integer)("准备安装整合包",
                Sub()
                    If Not ModpackInstall(Target, VersionName, Logo:=If(IO.File.Exists(LogoFileAddress), LogoFileAddress, Nothing)) Then
                        Throw New Exception("整合包安装出现异常！")
                    End If
                End Sub) With {.ProgressWeight = 0.1})

            '启动
            Dim Loader As New LoaderCombo(Of String)(LoaderName, Loaders) With {.OnStateChanged = Sub(MyLoader)
                                                                                                      Select Case MyLoader.State
                                                                                                          Case LoadState.Failed
                                                                                                              Hint(MyLoader.Name & "失败：" & GetExceptionSummary(MyLoader.Error), HintType.Critical)
                                                                                                          Case LoadState.Aborted
                                                                                                              Hint(MyLoader.Name & "已取消！", HintType.Info)
                                                                                                          Case LoadState.Loading
                                                                                                              Exit Sub '不重新加载版本列表
                                                                                                      End Select
                                                                                                      McInstallFailedClearFolder(MyLoader)
                                                                                                  End Sub}
            Loader.Start(PathMcFolder & "versions\" & VersionName & "\")
            LoaderTaskbarAdd(Loader)
            FrmMain.BtnExtraDownload.ShowRefresh()
            FrmMain.BtnExtraDownload.Ribble()

        Catch ex As Exception
            Log(ex, "下载资源整合包失败", LogLevel.Feedback)
        End Try
    End Sub
    'Mod 下载；整合包另存为
    Public Shared CachedFolder As String = Nothing '仅在本次缓存的下载文件夹
    Public Sub Save_Click(sender As Object, e As EventArgs)
        Dim File As CompFile = If(TypeOf sender Is MyListItem, sender, sender.Parent).Tag
        RunInNewThread(
        Sub()
            Try
                Dim Desc As String = If(Project.Type = CompType.ModPack, "整合包", If(Project.Type = CompType.Mod, "Mod ", "资源包"))
                '确认默认保存位置
                Dim DefaultFolder As String = Nothing
                If Project.Type = CompType.Mod Then
                    '获取 Mod 所需的加载器种类
                    Dim AllowForge As Boolean? = Nothing, AllowFabric As Boolean? = Nothing
                    If File.ModLoaders.Count > 0 Then '从文件中获取
                        AllowForge = File.ModLoaders.Contains(CompModLoaderType.Forge)
                        AllowFabric = File.ModLoaders.Contains(CompModLoaderType.Fabric)
                    ElseIf Project.ModLoaders.Count > 0 Then '从工程中获取
                        AllowForge = Project.ModLoaders.Contains(CompModLoaderType.Forge)
                        AllowFabric = Project.ModLoaders.Contains(CompModLoaderType.Fabric)
                    End If
                    If AllowForge IsNot Nothing AndAlso Not AllowForge AndAlso
                       AllowFabric IsNot Nothing AndAlso Not AllowFabric Then
                        AllowForge = Nothing : AllowFabric = Nothing
                    End If
                    Log("[Comp] 允许 Forge：" & If(AllowForge, "未知") & "，允许 Fabric：" & If(AllowFabric, "未知"))
                    '判断某个版本是否符合要求
                    Dim IsVersionSuitable As Func(Of McVersion, Boolean) =
                    Function(Version)
                        If Not Version.IsLoaded Then Version.Load()
                        If Not Version.Modable Then Return False
                        If File.GameVersions.Any(Function(v) v.Contains(".")) AndAlso
                           Not File.GameVersions.Any(Function(v) v.Contains(".") AndAlso v.Split(".")(1) = Version.Version.McCodeMain.ToString) Then Return False
                        If AllowForge Is Nothing OrElse AllowFabric Is Nothing Then Return True
                        If AllowForge AndAlso Version.Version.HasForge Then Return True
                        If AllowFabric AndAlso Version.Version.HasFabric Then Return True
                        Return False
                    End Function
                    '获取 Mod 默认下载位置
                    If CachedFolder IsNot Nothing Then
                        DefaultFolder = CachedFolder
                        Log("[Comp] 使用上次下载时的文件夹作为默认下载位置")
                    ElseIf McVersionCurrent IsNot Nothing AndAlso IsVersionSuitable(McVersionCurrent) Then
                        DefaultFolder = McVersionCurrent.PathIndie & "mods\"
                        Directory.CreateDirectory(DefaultFolder)
                        Log("[Comp] 使用当前版本的 mods 文件夹作为默认下载位置（" & McVersionCurrent.Name & "）")
                    Else
                        Dim NeedLoad As Boolean = McVersionListLoader.State <> LoadState.Finished
                        If NeedLoad Then
                            Hint("正在查找适合的游戏版本……")
                            LoaderFolderRun(McVersionListLoader, PathMcFolder, LoaderFolderRunType.ForceRun, MaxDepth:=1, ExtraPath:="versions\", WaitForExit:=True)
                        End If
                        Dim SuitableVersions As New List(Of McVersion)
                        For Each Version As McVersion In McVersionList.Values.SelectMany(Function(l) l)
                            If IsVersionSuitable(Version) Then SuitableVersions.Add(Version)
                        Next
                        If SuitableVersions.Count = 0 Then
                            DefaultFolder = PathMcFolder
                            If NeedLoad Then
                                Hint("当前 MC 文件夹中没有找到适合这个 Mod 的版本！")
                            Else
                                Log("[Comp] 由于当前版本不兼容，使用当前的 MC 文件夹作为默认下载位置")
                            End If
                        Else '选择 Mod 数量最多的版本
                            Dim SelectedVersion = SuitableVersions.OrderBy(Function(v)
                                                                               Dim Info As New DirectoryInfo(v.PathIndie & "mods\")
                                                                               Return If(Info.Exists, Info.GetFiles().Length, -1)
                                                                           End Function).LastOrDefault()
                            DefaultFolder = SelectedVersion.PathIndie & "mods\"
                            Directory.CreateDirectory(DefaultFolder)
                            Log("[Comp] 使用适合的游戏版本作为默认下载位置（" & SelectedVersion.Name & "）")
                        End If
                    End If
                End If
                '获取基本信息
                Dim FileName As String
                If Project.TranslatedName = Project.RawName Then
                    FileName = File.FileName
                Else
                    Dim ChineseName As String = Project.TranslatedName.Split(" (").First.Split(" - ").First.
                        Replace("\", "＼").Replace("/", "／").Replace("|", "｜").Replace(":", "：").Replace("<", "＜").Replace(">", "＞").Replace("*", "＊").Replace("?", "？").Replace("""", "").Replace("： ", "：")
                    Select Case Setup.Get("ToolDownloadTranslate")
                        Case 0
                            FileName = $"[{ChineseName}] {File.FileName}"
                        Case 1
                            FileName = $"{ChineseName}-{File.FileName}"
                        Case 2
                            FileName = $"{File.FileName}-{ChineseName}"
                        Case Else
                            FileName = File.FileName
                    End Select
                End If
                RunInUi(
                Sub()
                    '弹窗要求选择保存位置
                    Dim Target As String
                    Target = SelectAs("选择保存位置", FileName,
                                      Desc & "文件|" &
                                      If(Project.Type = CompType.Mod,
                                          If(File.FileName.EndsWith(".litemod"), "*.litemod", "*.jar"),
                                          If(File.FileName.EndsWith(".mrpack"), "*.mrpack", "*.zip")), DefaultFolder)
                    If Not Target.Contains("\") Then Exit Sub
                    '构造步骤加载器
                    Dim LoaderName As String = Desc & "下载：" & File.DisplayName & " "
                    If Target <> DefaultFolder AndAlso Project.Type = CompType.Mod Then CachedFolder = GetPathFromFullPath(Target)
                    Dim Loaders As New List(Of LoaderBase)
                    Loaders.Add(New LoaderDownload("下载文件", New List(Of NetFile) From {File.ToNetFile(Target)}) With {.ProgressWeight = 6, .Block = True})
                    '启动
                    Dim Loader As New LoaderCombo(Of Integer)(LoaderName, Loaders) With {.OnStateChanged = AddressOf DownloadStateSave}
                    Loader.Start(1)
                    LoaderTaskbarAdd(Loader)
                    FrmMain.BtnExtraDownload.ShowRefresh()
                    FrmMain.BtnExtraDownload.Ribble()
                End Sub)
            Catch ex As Exception
                Log(ex, "保存资源文件失败", LogLevel.Feedback)
            End Try
        End Sub, "Download CompDetail Save")
    End Sub

    Private Sub BtnIntroWeb_Click(sender As Object, e As EventArgs) Handles BtnIntroWeb.Click
        OpenWebsite(Project.Website)
    End Sub
    Private Sub BtnIntroWiki_Click(sender As Object, e As EventArgs) Handles BtnIntroWiki.Click
        OpenWebsite("https://www.mcmod.cn/class/" & Project.WikiId & ".html")
    End Sub
    Private Sub BtnIntroCopy_Click(sender As Object, e As EventArgs) Handles BtnIntroCopy.Click
        ClipboardSet(CompItem.LabTitle.Text)
    End Sub

End Class