| 1 | using Avalonia.Threading; |
| 2 | using CascadeIDE.ViewModels; |
| 3 | using CommunityToolkit.Mvvm.ComponentModel; |
| 4 | |
| 5 | namespace CascadeIDE.Features.Build; |
| 6 | |
| 7 | /// <summary> |
| 8 | /// Вкладка «Сборка · вывод» нижней панели: текст вывода сборки и связанных операций. |
| 9 | /// <see cref="Append"/> коалесит обновления привязки через один <see cref="IUiScheduler.Post"/> на серию вызовов (фаза 5). |
| 10 | /// </summary> |
| 11 | public partial class BuildOutputPanelViewModel : ViewModelBase |
| 12 | { |
| 13 | /// <summary> |
| 14 | /// Максимальный размер накопленного вывода (чтобы не ловить OOM на больших логах). |
| 15 | /// </summary> |
| 16 | public const int MaxChars = 250_000; |
| 17 | |
| 18 | private readonly object _batchLock = new(); |
| 19 | private OutputAccumulator _acc = new(MaxChars); |
| 20 | private int _contentVersion; |
| 21 | private bool _flushPosted; |
| 22 | |
| 23 | [ObservableProperty] |
| 24 | private string _buildOutput = ""; |
| 25 | |
| 26 | public void Clear() |
| 27 | { |
| 28 | lock (_batchLock) |
| 29 | { |
| 30 | _contentVersion++; |
| 31 | _acc = new OutputAccumulator(MaxChars); |
| 32 | _flushPosted = false; |
| 33 | BuildOutput = ""; |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | public void Set(string text) |
| 38 | { |
| 39 | lock (_batchLock) |
| 40 | { |
| 41 | _contentVersion++; |
| 42 | _acc = new OutputAccumulator(MaxChars); |
| 43 | _acc.Append((text ?? "").AsSpan()); |
| 44 | _flushPosted = false; |
| 45 | BuildOutput = _acc.ToStringAndTrim(); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | public void Append(string text) |
| 50 | { |
| 51 | if (string.IsNullOrEmpty(text)) |
| 52 | return; |
| 53 | |
| 54 | int ver; |
| 55 | lock (_batchLock) |
| 56 | { |
| 57 | _acc.Append(text.AsSpan()); |
| 58 | if (_flushPosted) |
| 59 | return; |
| 60 | _flushPosted = true; |
| 61 | ver = _contentVersion; |
| 62 | } |
| 63 | |
| 64 | UiScheduler.Default.Post(() => FlushToUi(ver), DispatcherPriority.Background); |
| 65 | } |
| 66 | |
| 67 | private void FlushToUi(int scheduledVersion) |
| 68 | { |
| 69 | lock (_batchLock) |
| 70 | { |
| 71 | if (scheduledVersion != _contentVersion) |
| 72 | { |
| 73 | _flushPosted = false; |
| 74 | return; |
| 75 | } |
| 76 | |
| 77 | BuildOutput = _acc.ToStringAndTrim(); |
| 78 | _flushPosted = false; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | /// <summary> |
| 83 | /// Синхронно выставляет <see cref="BuildOutput"/> из накопителя и отменяет отложенный flush |
| 84 | /// (после серии <see cref="Append"/>, чтобы MCP/пользователь не читали устаревший текст). |
| 85 | /// </summary> |
| 86 | public void FlushPending() |
| 87 | { |
| 88 | lock (_batchLock) |
| 89 | { |
| 90 | _contentVersion++; |
| 91 | BuildOutput = _acc.ToStringAndTrim(); |
| 92 | _flushPosted = false; |
| 93 | } |
| 94 | } |
| 95 | } |
| 96 | |