refactored code a bit

main.go

@@ -46,33 +46,36 @@ func main() {
 		}
 	}
 
-	// daily
-	listRewards("2006-01-02", rewards)
-
-	// monthly
-	listRewards("2006-01", rewards)
-
-	// yearly
-	listRewards("2006", rewards)
+	// print out all rewards
+	printRewards(rewards)
 }
 
-func listRewards(format string, entries []lineEntry) {
-	var str string
-	switch format {
-	case "2006-01-02":
-		str = "daily"
-	case "2006-01":
-		str = "monthly"
-	case "2006":
-		str = "yearly"
-	}
+func printRewards(rewards []lineEntry) {
+	// daily
+	daily := listRewards("2006-01-02", rewards)
+
+	// monthly
+	monthly := listRewards("2006-01", rewards)
+
+	// yearly
+	yearly := listRewards("2006", rewards)
+
+	// print rewards
+	log.Println("listing daily Rewards")
+	prettify.Print(daily)
+	log.Println("listing monthly Rewards")
+	prettify.Print(monthly)
+	log.Println("listing yearly Rewards")
+	prettify.Print(yearly)
+}
+
+func listRewards(format string, entries []lineEntry) map[string]float64 {
 	rewards := make(map[string]float64)
-	log.Printf("listing %s Rewards", str)
 	for i := range entries {
 		rewardsString := entries[i].Time.Format(format)
 		rewards[rewardsString] += entries[i].Amounts["DFI"]
 	}
-	prettify.Print(rewards)
+	return rewards
 }
 
 func readCSV(filename string) ([]byte, error) {