Add table context URL serializer

2026-03-21 14:00:41 +01:00
parent 58df648bd5
commit aa0639ef66
7 changed files with 258 additions and 6 deletions
--- a/src/RolemasterDb.App/Frontend/AppState/TableContextUrlSerializer.cs
+++ b/src/RolemasterDb.App/Frontend/AppState/TableContextUrlSerializer.cs
@@ -0,0 +1,82 @@
+using Microsoft.AspNetCore.WebUtilities;
+
+namespace RolemasterDb.App.Frontend.AppState;
+
+public sealed class TableContextUrlSerializer
+{
+    private const string TableKey = "table";
+    private const string GroupKey = "group";
+    private const string ColumnKey = "column";
+    private const string RollBandKey = "rollBand";
+    private const string RollJumpKey = "roll";
+    private const string ResultIdKey = "result";
+    private const string ModeKey = "mode";
+
+    public TableContextSnapshot Parse(string uri)
+    {
+        var currentUri = new Uri(uri, UriKind.Absolute);
+        var query = QueryHelpers.ParseQuery(currentUri.Query);
+
+        return new TableContextSnapshot(
+            ReadValue(query, TableKey),
+            ReadValue(query, GroupKey),
+            ReadValue(query, ColumnKey),
+            ReadValue(query, RollBandKey),
+            ReadInt(query, RollJumpKey),
+            ReadInt(query, ResultIdKey),
+            ReadMode(ReadValue(query, ModeKey)));
+    }
+
+    public string BuildRelativeUri(string basePath, TableContextSnapshot context)
+    {
+        var parameters = new Dictionary<string, string?>();
+        AddIfPresent(parameters, TableKey, context.TableSlug);
+        AddIfPresent(parameters, GroupKey, context.GroupKey);
+        AddIfPresent(parameters, ColumnKey, context.ColumnKey);
+        AddIfPresent(parameters, RollBandKey, context.RollBand);
+        AddIfPresent(parameters, RollJumpKey, context.RollJump?.ToString());
+        AddIfPresent(parameters, ResultIdKey, context.ResultId?.ToString());
+        AddIfPresent(parameters, ModeKey, WriteMode(context.Mode));
+
+        return parameters.Count == 0
+            ? basePath
+            : QueryHelpers.AddQueryString(basePath, parameters);
+    }
+
+    private static void AddIfPresent(IDictionary<string, string?> parameters, string key, string? value)
+    {
+        if (!string.IsNullOrWhiteSpace(value))
+        {
+            parameters[key] = value.Trim();
+        }
+    }
+
+    private static string? ReadValue(IReadOnlyDictionary<string, Microsoft.Extensions.Primitives.StringValues> query, string key) =>
+        query.TryGetValue(key, out var value)
+            ? value.ToString()
+            : null;
+
+    private static int? ReadInt(IReadOnlyDictionary<string, Microsoft.Extensions.Primitives.StringValues> query, string key)
+    {
+        var value = ReadValue(query, key);
+        return int.TryParse(value, out var parsed) ? parsed : null;
+    }
+
+    private static TableContextMode? ReadMode(string? value) =>
+        value?.Trim().ToLowerInvariant() switch
+        {
+            "reference" => TableContextMode.Reference,
+            "curation" => TableContextMode.Curation,
+            "diagnostics" => TableContextMode.Diagnostics,
+            _ => null
+        };
+
+    private static string? WriteMode(TableContextMode? mode) =>
+        mode switch
+        {
+            TableContextMode.Reference => "reference",
+            TableContextMode.Curation => "curation",
+            TableContextMode.Diagnostics => "diagnostics",
+            _ => null
+        };
+}