chore: add hrynco common library solution

- add the standalone HrynCo.Common solution and projects - include the shared common library source and tests - add package metadata and a repo gitignore
2026-05-01 00:17:34 +03:00
commit 85b362e8cd
38 changed files with 1452 additions and 0 deletions
@@ -0,0 +1,19 @@
+namespace HrynCo.Common.Caching;
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+public interface ISessionCredentialStore
+{
+    Task<string?> GetAsync(Guid userId, string provider, CancellationToken cancellationToken = default);
+
+    Task RemoveAsync(Guid userId, string provider, CancellationToken cancellationToken = default);
+
+    Task SaveAsync(
+        Guid userId,
+        string provider,
+        string apiKey,
+        TimeSpan ttl,
+        CancellationToken cancellationToken = default);
+}
@@ -0,0 +1,19 @@
+namespace HrynCo.Common.Caching;
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+public interface ISessionPromptStore
+{
+    Task<string?> GetAsync(Guid userId, string provider, CancellationToken cancellationToken = default);
+
+    Task RemoveAsync(Guid userId, string provider, CancellationToken cancellationToken = default);
+
+    Task SaveAsync(
+        Guid userId,
+        string provider,
+        string prompt,
+        TimeSpan ttl,
+        CancellationToken cancellationToken = default);
+}
@@ -0,0 +1,55 @@
+namespace HrynCo.Common.Caching;
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Caching.Memory;
+
+public sealed class InMemorySessionCredentialStore : ISessionCredentialStore
+{
+    private readonly IMemoryCache _cache;
+
+    public InMemorySessionCredentialStore(IMemoryCache cache)
+    {
+        _cache = cache;
+    }
+
+    public Task<string?> GetAsync(Guid userId, string provider, CancellationToken cancellationToken = default)
+    {
+        _ = cancellationToken;
+        _cache.TryGetValue(BuildKey(userId, provider), out string? apiKey);
+        return Task.FromResult(apiKey);
+    }
+
+    public Task RemoveAsync(Guid userId, string provider, CancellationToken cancellationToken = default)
+    {
+        _ = cancellationToken;
+        _cache.Remove(BuildKey(userId, provider));
+        return Task.CompletedTask;
+    }
+
+    public Task SaveAsync(
+        Guid userId,
+        string provider,
+        string apiKey,
+        TimeSpan ttl,
+        CancellationToken cancellationToken = default)
+    {
+        _ = cancellationToken;
+        _cache.Set(
+            BuildKey(userId, provider),
+            apiKey,
+            new MemoryCacheEntryOptions
+            {
+                AbsoluteExpirationRelativeToNow = ttl,
+                SlidingExpiration = TimeSpan.FromMinutes(30)
+            });
+
+        return Task.CompletedTask;
+    }
+
+    private static string BuildKey(Guid userId, string provider)
+    {
+        return $"ai-session-key:{provider}:{userId:N}";
+    }
+}
@@ -0,0 +1,55 @@
+namespace HrynCo.Common.Caching;
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Caching.Memory;
+
+public sealed class InMemorySessionPromptStore : ISessionPromptStore
+{
+    private readonly IMemoryCache _cache;
+
+    public InMemorySessionPromptStore(IMemoryCache cache)
+    {
+        _cache = cache;
+    }
+
+    public Task<string?> GetAsync(Guid userId, string provider, CancellationToken cancellationToken = default)
+    {
+        _ = cancellationToken;
+        _cache.TryGetValue(BuildKey(userId, provider), out string? prompt);
+        return Task.FromResult(prompt);
+    }
+
+    public Task RemoveAsync(Guid userId, string provider, CancellationToken cancellationToken = default)
+    {
+        _ = cancellationToken;
+        _cache.Remove(BuildKey(userId, provider));
+        return Task.CompletedTask;
+    }
+
+    public Task SaveAsync(
+        Guid userId,
+        string provider,
+        string prompt,
+        TimeSpan ttl,
+        CancellationToken cancellationToken = default)
+    {
+        _ = cancellationToken;
+        _cache.Set(
+            BuildKey(userId, provider),
+            prompt,
+            new MemoryCacheEntryOptions
+            {
+                AbsoluteExpirationRelativeToNow = ttl,
+                SlidingExpiration = TimeSpan.FromMinutes(30)
+            });
+
+        return Task.CompletedTask;
+    }
+
+    private static string BuildKey(Guid userId, string provider)
+    {
+        return $"ai-session-prompt:{provider}:{userId:N}";
+    }
+}