simplify code and add total

models/report.go

@@ -13,7 +13,26 @@ type Report struct {
 }
 
 type Data struct {
-	Minimal int `json:"minimal"`
-	Average int `json:"average"`
-	Maximal int `json:"maximal"`
+	Events       int `json:"events"`
+	Minimal      int `json:"minimal"`
+	Average      int `json:"average"`
+	Maximal      int `json:"maximal"`
+	averageCount int `json:"-"`
+}
+
+func AddNewData(value int) *Data {
+	return &Data{Minimal: value}
+}
+
+func (d *Data) AddData(value int) {
+	d.Events += 1
+	if d.Minimal > value {
+		d.Minimal = value
+	}
+	if d.Maximal < value {
+		d.Maximal = value
+	}
+
+	d.averageCount += value
+	d.Average = d.averageCount / d.Events
 }