Fixes issue with net computation for online tournaments

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

@@ -30,7 +30,7 @@ open class Result : RealmObject(), Filterable {
         set(value) {
             field = value
             this.computeNumberOfRebuy()
-            this.computeNet()
+            this.computeNet(true)
         }
 
 	/**
@@ -39,7 +39,7 @@ open class Result : RealmObject(), Filterable {
     var cashout: Double? = null
         set(value) {
             field = value
-            this.computeNet()
+            this.computeNet(true)
 	        if (value != null) {
 		        this.session?.end()
 	        }
@@ -60,9 +60,9 @@ open class Result : RealmObject(), Filterable {
 			}
 
 			field = value
-			this.computeNet()
+			this.computeNet(false)
 			if (value != null) {
-				this.session.end()
+				this.session?.end()
 			}
 		}
 
@@ -103,12 +103,27 @@ open class Result : RealmObject(), Filterable {
 	val isPositive: Int = if (this.net >= 0.0) 1 else 0
 
     // Computes the Net
-    private fun computeNet() {
+    private fun computeNet(withBuyin: Boolean? = null) {
 
         val transactionsSum = transactions.sumByDouble { it.amount }
 
-	    val isLive = this.session?.isLive ?: true
-	    if (isLive) {
+	    // choose the method to compute the net
+	    var useBuyin = withBuyin ?: true
+	    if (withBuyin == null) {
+		    if (netResult != null) {
+			    useBuyin = false
+		    } else if (buyin != null || cashout != null) {
+			    useBuyin = true
+		    } else {
+			    this.session?.let { session ->
+				    if (session.isCashGame() && !session.isLive) {
+					    useBuyin = false
+				    }
+			    }
+		    }
+	    }
+
+	    if (useBuyin) {
 		    val buyin = this.buyin ?: 0.0
 		    val cashOut = this.cashout ?: 0.0
 		    this.net = cashOut - buyin + transactionsSum