feat: advance legacy UI behavior parity

src/MBN_STOCK_WEBVIEW.LegacyApplication/LegacyThemeWorkflow.cs

@@ -211,6 +211,8 @@ public sealed record LegacyThemePlaylistDraft(
     string Code,
     IReadOnlyList<string> Aliases,
     string Title,
+    string PlaylistGraphicType,
+    string PlaylistSubtype,
     string Detail,
     string Category,
     string Market,
@@ -253,6 +255,7 @@ public sealed class LegacyThemeWorkflow
             RegisteredActions.ToDictionary(action => action.Id, StringComparer.Ordinal));
 
     private readonly IThemeSelectionService _selectionService;
+    private readonly Func<DateTimeOffset> _localNow;
     private readonly object _authority = new();
 
     static LegacyThemeWorkflow()
@@ -260,16 +263,22 @@ public sealed class LegacyThemeWorkflow
         ValidateActions(RegisteredActions);
     }
 
-    public LegacyThemeWorkflow(IThemeSelectionService selectionService)
+    public LegacyThemeWorkflow(
+        IThemeSelectionService selectionService,
+        Func<DateTimeOffset>? localNow = null)
     {
         _selectionService = selectionService ??
             throw new ArgumentNullException(nameof(selectionService));
+        _localNow = localNow ?? (() => DateTimeOffset.Now);
     }
 
     public static IReadOnlyList<LegacyThemeActionDefinition> Actions => RegisteredActions;
 
     public static IReadOnlyList<LegacyThemeSortDefinition> Sorts => RegisteredSorts;
 
+    public ThemeSession CurrentNxtSession =>
+        _localNow().Hour <= 12 ? ThemeSession.PreMarket : ThemeSession.AfterMarket;
+
     public LegacyThemeWorkflowSnapshot CreateInitial(
         ThemeSession nxtSession = ThemeSession.PreMarket)
     {
@@ -287,6 +296,25 @@ public sealed class LegacyThemeWorkflow
             previewIsTruncated: false);
     }
 
+    public LegacyThemeWorkflowSnapshot ResetForTabActivation(
+        LegacyThemeWorkflowSnapshot snapshot,
+        ThemeSession nxtSession = ThemeSession.PreMarket)
+    {
+        RequireSnapshot(snapshot);
+        RequireNxtSession(nxtSession);
+        return NewSnapshot(
+            checked(snapshot.Revision + 1),
+            query: string.Empty,
+            nxtSession,
+            LegacyThemeSort.InputOrder,
+            [],
+            searchIsTruncated: false,
+            selectedResultId: null,
+            selectedIdentity: null,
+            previewItems: [],
+            previewIsTruncated: false);
+    }
+
     public async Task<LegacyThemeWorkflowSnapshot> SearchAsync(
         LegacyThemeWorkflowSnapshot snapshot,
         string query,
@@ -305,6 +333,9 @@ public sealed class LegacyThemeWorkflow
             cancellationToken).ConfigureAwait(false);
         cancellationToken.ThrowIfCancellationRequested();
         var rows = ValidateSearchResult(result, normalizedQuery, nxtSession);
+        var retainedSelection = snapshot.SelectedIdentity is null
+            ? null
+            : rows.SingleOrDefault(row => row.Identity == snapshot.SelectedIdentity);
         return NewSnapshot(
             checked(snapshot.Revision + 1),
             normalizedQuery,
@@ -312,10 +343,10 @@ public sealed class LegacyThemeWorkflow
             snapshot.Sort,
             rows,
             result.IsTruncated,
-            selectedResultId: null,
-            selectedIdentity: null,
-            previewItems: [],
-            previewIsTruncated: false);
+            retainedSelection?.ResultId,
+            retainedSelection?.Identity,
+            retainedSelection is null ? [] : snapshot.PreviewItems,
+            retainedSelection is not null && snapshot.PreviewIsTruncated);
     }
 
     public async Task<LegacyThemeWorkflowSnapshot> SelectAsync(
@@ -349,6 +380,31 @@ public sealed class LegacyThemeWorkflow
             preview.IsTruncated);
     }
 
+    public LegacyThemeWorkflowSnapshot RemoveSelectedResult(
+        LegacyThemeWorkflowSnapshot snapshot)
+    {
+        RequireSnapshot(snapshot);
+        if (snapshot.SelectedResultId is null)
+        {
+            return snapshot;
+        }
+
+        return NewSnapshot(
+            checked(snapshot.Revision + 1),
+            snapshot.Query,
+            snapshot.NxtSession,
+            snapshot.Sort,
+            snapshot.SearchResults.Where(row => !string.Equals(
+                row.ResultId,
+                snapshot.SelectedResultId,
+                StringComparison.Ordinal)),
+            snapshot.SearchIsTruncated,
+            selectedResultId: null,
+            selectedIdentity: null,
+            previewItems: [],
+            previewIsTruncated: false);
+    }
+
     public LegacyThemeWorkflowSnapshot SelectSort(
         LegacyThemeWorkflowSnapshot snapshot,
         string sortId)
@@ -391,7 +447,7 @@ public sealed class LegacyThemeWorkflow
         if (action.ValueKind == LegacyThemeValueKind.Expected &&
             identity.Market == ThemeMarket.Nxt)
         {
-            throw new InvalidOperationException("NXT themes do not provide expected-price data.");
+            throw new InvalidOperationException("NXT는 데이터가 없습니다.");
         }
 
         var sortId = SortId(snapshot.Sort);
@@ -399,6 +455,9 @@ public sealed class LegacyThemeWorkflow
         var displayTitle = identity.Market == ThemeMarket.Nxt
             ? $"{identity.ThemeTitle}(NXT)"
             : identity.ThemeTitle;
+        var playlistGraphicType = PlaylistGraphicType(action);
+        var playlistSubtype =
+            $"테마-{ValueKindLabel(action.ValueKind)}({SortLabel(snapshot.Sort)})";
         var selection = identity.Market == ThemeMarket.Krx
             ? new LegacyThemePlaylistSelection(
                 "PAGED_THEME",
@@ -409,7 +468,7 @@ public sealed class LegacyThemeWorkflow
             : new LegacyThemePlaylistSelection(
                 "PAGED_NXT_THEME",
                 displayTitle,
-                SessionId(identity.Session),
+                SessionId(CurrentNxtSession),
                 sortId,
                 identity.ThemeCode);
 
@@ -431,7 +490,9 @@ public sealed class LegacyThemeWorkflow
             action.Code,
             action.Aliases,
             displayTitle,
-            $"{action.Label} · {SortLabel(snapshot.Sort)}",
+            playlistGraphicType,
+            playlistSubtype,
+            playlistSubtype,
             "plate",
             "theme",
             selection,
@@ -527,16 +588,12 @@ public sealed class LegacyThemeWorkflow
             throw InvalidData("search envelope");
         }
 
-        var titles = new Dictionary<ThemeMarket, HashSet<string>>
-        {
-            [ThemeMarket.Krx] = new(StringComparer.Ordinal),
-            [ThemeMarket.Nxt] = new(StringComparer.Ordinal)
-        };
         var codes = new Dictionary<ThemeMarket, HashSet<string>>
         {
             [ThemeMarket.Krx] = new(StringComparer.Ordinal),
             [ThemeMarket.Nxt] = new(StringComparer.Ordinal)
         };
+        var sawNxt = false;
         foreach (var item in serviceItems)
         {
             if (item is null)
@@ -549,25 +606,30 @@ public sealed class LegacyThemeWorkflow
                 ? DataSourceKind.Oracle
                 : DataSourceKind.MariaDb;
             if (item.Source != expectedSource ||
-                !titles[item.Identity.Market].Add(item.Identity.ThemeTitle) ||
                 !codes[item.Identity.Market].Add(item.Identity.ThemeCode))
             {
                 throw InvalidData("search identity or provider");
             }
+
+            // UC4 appended the Oracle list and then the MariaDB list. Preserve
+            // each provider's returned order; do not sort rows by title or code.
+            if (item.Identity.Market == ThemeMarket.Nxt)
+            {
+                sawNxt = true;
+            }
+            else if (sawNxt)
+            {
+                throw InvalidData("search provider order");
+            }
         }
 
-        var ordered = serviceItems
-            .OrderBy(item => item.Identity.Market)
-            .ThenBy(item => item.Identity.ThemeTitle, StringComparer.Ordinal)
-            .ThenBy(item => item.Identity.ThemeCode, StringComparer.Ordinal)
-            .ToArray();
-        var rows = new LegacyThemeSearchRow[ordered.Length];
-        for (var index = 0; index < ordered.Length; index++)
+        var rows = new LegacyThemeSearchRow[serviceItems.Length];
+        for (var index = 0; index < serviceItems.Length; index++)
         {
             rows[index] = new LegacyThemeSearchRow(
                 $"theme-result-{index + 1:000}",
-                ordered[index].Identity,
-                ordered[index].Source);
+                serviceItems[index].Identity,
+                serviceItems[index].Source);
         }
 
         return Array.AsReadOnly(rows);
@@ -589,7 +651,6 @@ public sealed class LegacyThemeWorkflow
             throw InvalidData("preview envelope");
         }
 
-        var itemCodes = new HashSet<string>(StringComparer.Ordinal);
         var indexes = new HashSet<int>();
         var previousIndex = -1;
         var rows = new LegacyThemePreviewRow[serviceItems.Length];
@@ -598,7 +659,7 @@ public sealed class LegacyThemeWorkflow
             var item = serviceItems[index]
                 ?? throw InvalidData("preview item");
             if (item.InputIndex is < 0 or > 9_999 || item.InputIndex <= previousIndex ||
-                !indexes.Add(item.InputIndex) || !itemCodes.Add(item.ItemCode) ||
+                !indexes.Add(item.InputIndex) ||
                 !IsItemCodeForMarket(item.ItemCode, identity.Market) ||
                 !IsCanonicalText(item.ItemName, 200))
             {
@@ -684,6 +745,28 @@ public sealed class LegacyThemeWorkflow
             "Unknown theme value kind.")
     };
 
+    private static string ValueKindLabel(LegacyThemeValueKind valueKind) => valueKind switch
+    {
+        LegacyThemeValueKind.Current => "현재가",
+        LegacyThemeValueKind.Expected => "예상체결가",
+        _ => throw new ArgumentOutOfRangeException(
+            nameof(valueKind),
+            valueKind,
+            "Unknown theme value kind.")
+    };
+
+    private static string PlaylistGraphicType(LegacyThemeActionDefinition action) =>
+        action.Id switch
+        {
+            "five-row-current" or "five-row-expected" => "5단 표그래프",
+            "six-row-current" => "6종목 현재가",
+            "twelve-row-current" => "12종목 현재가",
+            _ => throw new ArgumentOutOfRangeException(
+                nameof(action),
+                action.Id,
+                "Unknown theme action.")
+        };
+
     private static void RequireNxtSession(ThemeSession nxtSession)
     {
         if (nxtSession is not (ThemeSession.PreMarket or ThemeSession.AfterMarket))
@@ -780,10 +863,7 @@ public sealed class LegacyThemeWorkflow
                 ? "theme-not-selected"
                 : previewItemCount == 0
                     ? "theme-preview-is-empty"
-                    : action.ValueKind == LegacyThemeValueKind.Expected &&
-                      selectedIdentity.Market == ThemeMarket.Nxt
-                        ? "expected-theme-is-krx-only"
-                        : null;
+                    : null;
             states[index] = new LegacyThemeActionState(
                 action.Id,
                 reason is null,