add proper lap sorting

app/src/main/kotlin/com/simplemobiletools/clock/models/Lap.kt

@@ -1,3 +1,37 @@
 package com.simplemobiletools.clock.models
 
-data class Lap(val id: Int, var lapTime: Long, var totalTime: Long)
+import com.simplemobiletools.clock.helpers.SORT_BY_LAP
+import com.simplemobiletools.clock.helpers.SORT_BY_LAP_TIME
+import com.simplemobiletools.commons.helpers.SORT_DESCENDING
+
+data class Lap(val id: Int, var lapTime: Long, var totalTime: Long) : Comparable<Lap> {
+    companion object {
+        var sorting = 0
+    }
+
+    override fun compareTo(other: Lap): Int {
+        var result = when {
+            sorting and SORT_BY_LAP != 0 -> when {
+                id == other.id -> 0
+                id > other.id -> 1
+                else -> -1
+            }
+            sorting and SORT_BY_LAP_TIME != 0 -> when {
+                lapTime == other.lapTime -> 0
+                lapTime > other.lapTime -> 1
+                else -> -1
+            }
+            else -> when {
+                totalTime == other.totalTime -> 0
+                totalTime > other.totalTime -> 1
+                else -> -1
+            }
+        }
+
+        if (sorting and SORT_DESCENDING != 0) {
+            result *= -1
+        }
+
+        return result
+    }
+}