| 1 | #nullable enable |
| 2 | |
| 3 | namespace CascadeIDE.Features.Chat; |
| 4 | |
| 5 | /// <summary>Строка состояния Intercom в Skia-toolbar (compact / Forward), вместо «хвоста» в ленте.</summary> |
| 6 | public static class ChatIntercomChromeStatusPresentation |
| 7 | { |
| 8 | public const int MaxTopicChars = 28; |
| 9 | public const int MaxLineChars = 24; |
| 10 | |
| 11 | public static string? FormatSubtitle( |
| 12 | ChatSurfaceSnapshot snapshot, |
| 13 | bool overviewMode, |
| 14 | Guid detailThreadId, |
| 15 | bool showTopicTabBar = false) |
| 16 | { |
| 17 | if (!overviewMode && showTopicTabBar) |
| 18 | { |
| 19 | var messageCount = ResolveMessageCount(snapshot, detailThreadId); |
| 20 | return $"сообщений: {messageCount}"; |
| 21 | } |
| 22 | |
| 23 | if (overviewMode) |
| 24 | { |
| 25 | var count = snapshot.Layout.Overview.Count; |
| 26 | return count == 0 |
| 27 | ? null |
| 28 | : $"тем: {count} · {ChatThreadOverviewPresentation.CatalogFooter}"; |
| 29 | } |
| 30 | |
| 31 | var topic = ResolveTopicLabel(snapshot, detailThreadId); |
| 32 | var line = snapshot.ProductSpine.HasContent |
| 33 | ? ChatProductSpinePresentation.ResolveLineTitle(snapshot.ProductSpine) |
| 34 | : null; |
| 35 | var messages = ResolveMessageCount(snapshot, detailThreadId); |
| 36 | |
| 37 | var parts = new List<string>(3) |
| 38 | { |
| 39 | "тема: " + Truncate(topic, MaxTopicChars), |
| 40 | }; |
| 41 | if (!string.IsNullOrWhiteSpace(line)) |
| 42 | parts.Add("линия: " + Truncate(line.Trim(), MaxLineChars)); |
| 43 | parts.Add($"сообщений: {messages}"); |
| 44 | return string.Join(" · ", parts); |
| 45 | } |
| 46 | |
| 47 | private static string ResolveTopicLabel(ChatSurfaceSnapshot snapshot, Guid detailThreadId) |
| 48 | { |
| 49 | var fromOverview = snapshot.Layout.Overview.FirstOrDefault(t => t.ThreadId == detailThreadId) |
| 50 | ?? snapshot.Layout.Overview.FirstOrDefault(t => t.IsActive) |
| 51 | ?? snapshot.Layout.Overview.FirstOrDefault(); |
| 52 | if (fromOverview is not null) |
| 53 | return fromOverview.Title; |
| 54 | |
| 55 | var fromLane = snapshot.Layout.Lanes.FirstOrDefault(l => l.Thread.ThreadId == detailThreadId) |
| 56 | ?? snapshot.Layout.Lanes.FirstOrDefault(l => l.Thread.ThreadId == snapshot.State.ActiveThreadId) |
| 57 | ?? snapshot.Layout.Lanes.FirstOrDefault(); |
| 58 | return fromLane?.Thread.Title ?? snapshot.State.ActiveThreadLabel; |
| 59 | } |
| 60 | |
| 61 | private static int ResolveMessageCount(ChatSurfaceSnapshot snapshot, Guid detailThreadId) |
| 62 | { |
| 63 | var lane = snapshot.Layout.Lanes.FirstOrDefault(l => l.Thread.ThreadId == detailThreadId) |
| 64 | ?? snapshot.Layout.Lanes.FirstOrDefault(l => l.Thread.ThreadId == snapshot.State.ActiveThreadId); |
| 65 | if (lane is not null) |
| 66 | { |
| 67 | return lane.Entries.Count(e => e.Kind == ChatSurfaceEntryKind.Message); |
| 68 | } |
| 69 | |
| 70 | var item = snapshot.Layout.Overview.FirstOrDefault(t => t.ThreadId == detailThreadId); |
| 71 | return item?.ItemCount ?? 0; |
| 72 | } |
| 73 | |
| 74 | private static string Truncate(string text, int maxChars) => |
| 75 | text.Length <= maxChars ? text : text[..maxChars] + "…"; |
| 76 | } |
| 77 | |