♻️ Extract the Storage service to DysonNetwork.Drive microservice

DysonNetwork.Drive/Handlers/PostViewFlushHandler.cs

@@ -0,0 +1,55 @@
+using DysonNetwork.Drive.Models;
+using Microsoft.EntityFrameworkCore;
+using NodaTime;
+using Quartz;
+using Microsoft.Extensions.DependencyInjection;
+using DysonNetwork.Drive.Services;
+
+namespace DysonNetwork.Drive.Handlers;
+
+public class PostViewFlushHandler(IServiceProvider serviceProvider) : IFlushHandler<PostViewInfo>
+{
+    public async Task FlushAsync(IReadOnlyList<PostViewInfo> items)
+    {
+        using var scope = serviceProvider.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<AppDatabase>();
+        var cache = scope.ServiceProvider.GetRequiredService<ICacheService>();
+
+        // Group views by post
+        var postViews = items
+            .GroupBy(x => x.PostId)
+            .ToDictionary(g => g.Key, g => g.ToList());
+
+        // Calculate total views and unique views per post
+        foreach (var postId in postViews.Keys)
+        {
+            // Calculate unique views by distinct viewer IDs (not null)
+            var uniqueViews = postViews[postId]
+                .Where(v => !string.IsNullOrEmpty(v.ViewerId))
+                .Select(v => v.ViewerId)
+                .Distinct()
+                .Count();
+
+            // Total views is just the count of all items for this post
+            var totalViews = postViews[postId].Count;
+
+            // Update the post in the database
+            await db.Posts
+                .Where(p => p.Id == postId)
+                .ExecuteUpdateAsync(p => p
+                    .SetProperty(x => x.ViewsTotal, x => x.ViewsTotal + totalViews)
+                    .SetProperty(x => x.ViewsUnique, x => x.ViewsUnique + uniqueViews));
+
+            // Invalidate any cache entries for this post
+            await cache.RemoveAsync($"post:{postId}");
+        }
+    }
+}
+
+public class PostViewFlushJob(FlushBufferService fbs, PostViewFlushHandler hdl) : IJob
+{
+    public async Task Execute(IJobExecutionContext context)
+    {
+        await fbs.FlushAsync(hdl);
+    }
+}