Initial commit

Abstractions/IRudderLogger.cs

@@ -0,0 +1,24 @@
+namespace RudderSdk.Core.Abstractions;
+
+/// <summary>Severity of an SDK log message.</summary>
+public enum RudderLogLevel
+{
+    /// <summary>Verbose diagnostics.</summary>
+    Debug,
+
+    /// <summary>Normal operational messages.</summary>
+    Info,
+
+    /// <summary>Recoverable problems worth investigating.</summary>
+    Warning,
+
+    /// <summary>Failures that broke an operation.</summary>
+    Error
+}
+
+/// <summary>Optional sink for SDK diagnostics. Null by default (silent).</summary>
+public interface IRudderLogger
+{
+    /// <summary>Writes one message at the given severity.</summary>
+    void Log(RudderLogLevel level, string message);
+}