added logger in in-memory-metrics

core/src/commonMain/kotlin/com/xebia/functional/xef/metrics/InMemoryCounterMetric.kt

@@ -1,15 +1,18 @@
 package com.xebia.functional.xef.metrics
 
 import arrow.atomic.AtomicLong
+import io.github.oshai.kotlinlogging.KLogger
 
-class InMemoryCounterMetric : CounterMetric {
+class InMemoryCounterMetric(val name: String, val logger: KLogger) : CounterMetric {
   private val count = AtomicLong(0)
 
   override fun increment(n: Long) {
     count.incrementAndGet()
+    logger.info { "Counter $name incremented to ${count.get()}" }
   }
 
   override fun decrement(n: Long) {
     count.decrementAndGet()
+    logger.info { "Counter $name decremented to ${count.get()}" }
   }
 }

core/src/commonMain/kotlin/com/xebia/functional/xef/metrics/LogsMetric.kt

@@ -115,14 +115,14 @@ class LogsMetric(private val level: Level = Level.INFO) : Metric {
 
   override suspend fun createCounter(name: String): CounterMetric {
     logger.at(level) { message = "${writeIndent(numberOfBlocks.get())}> Created counter: $name" }
-    val counter = InMemoryCounterMetric()
+    val counter = InMemoryCounterMetric(name, logger)
     countersMap[name] = counter
     return counter
   }
 
   override suspend fun getCounter(name: String): CounterMetric {
     logger.at(level) { message = "${writeIndent(numberOfBlocks.get())}> Get counter: $name" }
-    return countersMap[name] ?: InMemoryCounterMetric()
+    return countersMap[name] ?: InMemoryCounterMetric(name, logger)
   }
 
   private fun writeIndent(times: Int = 1) = (1..indentSize * times).fold("") { a, _ -> "$a " }