Initial Commit

PatchProbe.Cli/Collectors/HotfixCollector.cs

@@ -0,0 +1,48 @@
+using System.Management;
+using Microsoft.Extensions.Logging;
+using PatchProbe.Shared.Contracts;
+using PatchProbe.Shared.Models;
+
+namespace PatchProbe.Cli.Collectors;
+
+public sealed class HotfixCollector(ILogger<HotfixCollector> logger) : ICollector<List<InstalledHotfix>>
+{
+    public Task<List<InstalledHotfix>> CollectAsync(CancellationToken cancellationToken = default)
+    {
+        logger.LogInformation("Collecting installed hotfixes via Win32_QuickFixEngineering");
+
+        var hotfixes = new List<InstalledHotfix>();
+
+        try
+        {
+            using var searcher = new ManagementObjectSearcher(
+                new ManagementScope(@"root\CIMv2"),
+                new ObjectQuery("SELECT * FROM Win32_QuickFixEngineering"));
+
+            using var results = searcher.Get();
+            foreach (ManagementBaseObject obj in results)
+            {
+                DateTimeOffset? installedOn = null;
+                var dateRaw = obj["InstalledOn"]?.ToString();
+                if (!string.IsNullOrEmpty(dateRaw) && DateTime.TryParse(dateRaw, out var dt))
+                    installedOn = new DateTimeOffset(dt, TimeSpan.Zero);
+
+                hotfixes.Add(new InstalledHotfix
+                {
+                    HotFixId = obj["HotFixID"]?.ToString()?.Trim(),
+                    Description = obj["Description"]?.ToString()?.Trim(),
+                    InstalledBy = obj["InstalledBy"]?.ToString()?.Trim(),
+                    InstalledOn = installedOn,
+                });
+            }
+
+            logger.LogInformation("Collected {Count} installed hotfixes", hotfixes.Count);
+        }
+        catch (Exception ex)
+        {
+            logger.LogWarning(ex, "Hotfix collection failed");
+        }
+
+        return Task.FromResult(hotfixes);
+    }
+}