stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/StellaOps.Provcache/ProvcacheService.GetOrCompute.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace StellaOps.Provcache;
+
+public sealed partial class ProvcacheService
+{
+    /// <inheritdoc />
+    public async Task<ProvcacheEntry> GetOrComputeAsync(
+        string veriKey,
+        Func<CancellationToken, Task<ProvcacheEntry>> factory,
+        bool bypassCache = false,
+        CancellationToken cancellationToken = default)
+    {
+        ArgumentException.ThrowIfNullOrWhiteSpace(veriKey);
+        ArgumentNullException.ThrowIfNull(factory);
+
+        if (!bypassCache || !_options.AllowCacheBypass)
+        {
+            var result = await GetAsync(veriKey, bypassCache: false, cancellationToken).ConfigureAwait(false);
+            if (result.WasCached && result.Entry is not null)
+            {
+                return result.Entry;
+            }
+        }
+
+        var entry = await factory(cancellationToken).ConfigureAwait(false);
+        await SetAsync(entry, cancellationToken).ConfigureAwait(false);
+
+        return entry;
+    }
+}