1st

examples/requests/generate.go

@@ -0,0 +1,81 @@
+package main
+
+import (
+	"math/rand"
+	"time"
+
+	"gordenko.dev/dima/qb/proto"
+)
+
+func GenerateCumulativeMeasures(days int) []proto.Measure {
+	var (
+		measures    []proto.Measure
+		minutes     = []int{14, 29, 44, 59}
+		hoursPerDay = 24
+		totalHours  = days * hoursPerDay
+		since       = time.Now().AddDate(0, 0, -days)
+		totalValue  float64
+	)
+
+	for i := range totalHours {
+		hourTime := since.Add(time.Duration(i) * time.Hour)
+		for _, m := range minutes {
+			measureTime := time.Date(
+				hourTime.Year(),
+				hourTime.Month(),
+				hourTime.Day(),
+				hourTime.Hour(),
+				m, // minutes
+				0, // seconds
+				0, // nanoseconds
+				time.Local,
+			)
+
+			measure := proto.Measure{
+				Timestamp: uint32(measureTime.Unix()),
+				Value:     totalValue,
+			}
+			measures = append(measures, measure)
+
+			totalValue += rand.Float64()
+		}
+	}
+	return measures
+}
+
+func GenerateInstantMeasures(days int, baseValue float64) []proto.Measure {
+	var (
+		measures    []proto.Measure
+		minutes     = []int{14, 29, 44, 59}
+		hoursPerDay = 24
+		totalHours  = days * hoursPerDay
+		since       = time.Now().AddDate(0, 0, -days)
+	)
+
+	for i := range totalHours {
+		hourTime := since.Add(time.Duration(i) * time.Hour)
+		for _, m := range minutes {
+			measureTime := time.Date(
+				hourTime.Year(),
+				hourTime.Month(),
+				hourTime.Day(),
+				hourTime.Hour(),
+				m, // minutes
+				0, // seconds
+				0, // nanoseconds
+				time.Local,
+			)
+
+			// value = +-10% from base value
+			fluctuation := baseValue * 0.1
+			value := baseValue + (rand.Float64()*2-1)*fluctuation
+
+			measure := proto.Measure{
+				Timestamp: uint32(measureTime.Unix()),
+				Value:     value,
+			}
+			measures = append(measures, measure)
+		}
+	}
+	return measures
+}