Added logging.

JSMR.Application/Logging/LogEvents.cs

@@ -0,0 +1,59 @@
+using Microsoft.Extensions.Logging;
+
+namespace JSMR.Application.Logging;
+
+public static partial class LogEvents
+{
+    public static void SearchCompleted(ILogger logger, long Elapsed, int Items, int Total, int Page, int Size, object Sort, object Criteria)
+    {
+        logger.LogInformation(
+            new EventId(1000, "SearchCompleted"),
+            "Search returned {Items} items (out of {Total} total) results in {Elapsed} ms on page {Page} with Size {Size}, sorted by {@Sort}, based on the following criteria: {@Criteria}",
+            Items,
+            Total,
+            Elapsed,
+            Page,
+            Size,
+            Sort,
+            Criteria
+        );
+    }
+
+    // Search
+    [LoggerMessage(EventId = 1000, Level = LogLevel.Information,
+        Message = "Search started Page={Page} Size={Size} Criteria={@Criteria}")]
+    public static partial void SearchStart(ILogger logger, int Page, int Size, object Criteria);
+
+    //[LoggerMessage(EventId = 1001, Level = LogLevel.Information,
+    //    Message = "Search completed in {ElapsedMs} ms, Total={Total}")]
+    //public static partial void SearchComplete(ILogger logger, long ElapsedMs, int Total);
+
+    [LoggerMessage(EventId = 1001, Level = LogLevel.Information,
+       Message = "Search returned {Items} items (out of {Total} total) results in {Elapsed} ms on page {Page} with Size {Size}, sorted by {@Sort}, based on the following criteria: {@Criteria}")]
+    public static partial void SearchComplete(ILogger logger, long Elapsed, int Items, int Total, int Page, int Size, object Sort, object Criteria);
+
+    [LoggerMessage(EventId = 1002, Level = LogLevel.Warning,
+        Message = "External search provider timeout after {ElapsedMs} ms")]
+    public static partial void ExternalSearchTimeout(ILogger logger, long ElapsedMs);
+
+    [LoggerMessage(EventId = 1003, Level = LogLevel.Warning,
+        Message = "Slow Search Detected: Elapsed {ElapsedMs} ms (threshold {ThresholdMs} ms) Path={Path}")]
+    public static partial void SlowSearchDetected(ILogger logger, long ElapsedMs, long ThresholdMs, string Path);
+
+    [LoggerMessage(EventId = 1004, Level = LogLevel.Error,
+       Message = "Very Slow Search Detected: Elapsed {ElapsedMs} ms (threshold {ThresholdMs} ms) Path={Path}")]
+    public static partial void VerySlowSearchDetected(ILogger logger, long ElapsedMs, long ThresholdMs, string Path);
+
+    // Worker scan batch
+    [LoggerMessage(EventId = 2000, Level = LogLevel.Information,
+        Message = "Scan batch {BatchId} started")]
+    public static partial void ScanBatchStart(ILogger logger, string BatchId);
+
+    [LoggerMessage(EventId = 2001, Level = LogLevel.Information,
+        Message = "Scan batch {BatchId} completed in {ElapsedMs} ms. Processed={Processed} Failures={Failures}")]
+    public static partial void ScanBatchComplete(ILogger logger, string BatchId, int Processed, int Failures, long ElapsedMs);
+
+    [LoggerMessage(EventId = 2002, Level = LogLevel.Error,
+        Message = "Scan batch {BatchId} failed")]
+    public static partial void ScanBatchFailed(ILogger logger, string BatchId, Exception ex);
+}