Added comments

app/src/main/java/net/pokeranalytics/android/calculus/Calculator.kt

@@ -8,8 +8,14 @@ import net.pokeranalytics.android.model.realm.SessionSet
  */
 class Calculator {
 
+    /**
+     * The options used for calculations or display
+     */
     class Options {
 
+        /**
+         * The way the stats are going to be displayed
+         */
         enum class Display {
             TABLE,
             EVOLUTION,
@@ -18,6 +24,9 @@ class Calculator {
             POLYNOMIAL
         }
 
+        /**
+         * The type of evolution values
+         */
         enum class EvolutionValues {
             NONE,
             STANDARD,
@@ -28,6 +37,9 @@ class Calculator {
         var evolutionValues: EvolutionValues = EvolutionValues.NONE
         var displayedStats: List<Stat> = listOf()
 
+        /**
+         * This function determines whether the standard deviation should be computed
+         */
         fun shouldComputeStandardDeviation() : Boolean {
             this.displayedStats.forEach { stat ->
                 return when (stat) {
@@ -47,7 +59,9 @@ class Calculator {
             return listOf()
         }
 
-        // Computes all stats for list of Session sessionGroup
+        /**
+         * Computes all stats for list of Session sessionGroup
+         */
         fun computeGroups(groups: List<SessionGroup>, options: Options): List<ComputedGroup> {
 
             var computedGroups: MutableList<ComputedGroup> = mutableListOf()
@@ -71,7 +85,9 @@ class Calculator {
             return computedGroups
         }
 
-        // Computes stats for a SessionSet
+        /**
+         * Computes stats for a SessionSet
+         */
         fun compute(sessionGroup: SessionGroup, options: Options) : ComputedResults {
 
             val sessions: List<SessionInterface> = sessionGroup.sessions

app/src/main/java/net/pokeranalytics/android/calculus/Stat.kt

@@ -27,12 +27,9 @@ enum class Stat : RowRepresentable {
     STANDARD_DEVIATION_BB_PER_100_HANDS,
     HANDS_PLAYED;
 
-    fun label() : String = when (this) {
-        NETRESULT -> ""
-        HOURLY_RATE -> ""
-        else -> throw IllegalArgumentException("Label not defined")
-    }
-
+    /**
+     * Returns whether the stat evolution values requires a distribution sorting
+     */
     fun hasDistributionSorting() : Boolean {
         when (this) {
             STANDARD_DEVIATION, STANDARD_DEVIATION_HOURLY, STANDARD_DEVIATION_BB_PER_100_HANDS -> return true

app/src/main/java/net/pokeranalytics/android/model/realm/Session.kt

@@ -133,16 +133,22 @@ open class Session : RealmObject(), SessionInterface, RowRepresentableDataSource
 			return 0.0
 		}
 
+	/**
+	 * This method is called whenever a session is about to be deleted
+	 */
 	fun cleanup() {
 
 		this.sessionSet?.let { set ->
 
+			// get all sessions part of the deleted session set
 			val sessionsFromSet = set.sessions
 
+			// cleanup unecessary related objects
 			set.deleteFromRealm()
 			this.timeFrame?.deleteFromRealm()
 			this.result?.deleteFromRealm()
 
+			// make sessions recreate/find their session set
 			sessionsFromSet?.let { sessions ->
 				sessions.forEach { session ->
 					session.timeFrame?.notifySessionDateChange()