mirror of
https://github.com/TwiN/gatus.git
synced 2024-11-29 11:25:08 +01:00
139 lines
3.0 KiB
Go
139 lines
3.0 KiB
Go
package chart
|
|
|
|
import (
|
|
"fmt"
|
|
"math"
|
|
)
|
|
|
|
// MinSeries draws a horizontal line at the minimum value of the inner series.
|
|
type MinSeries struct {
|
|
Name string
|
|
Style Style
|
|
YAxis YAxisType
|
|
InnerSeries ValuesProvider
|
|
|
|
minValue *float64
|
|
}
|
|
|
|
// GetName returns the name of the time series.
|
|
func (ms MinSeries) GetName() string {
|
|
return ms.Name
|
|
}
|
|
|
|
// GetStyle returns the line style.
|
|
func (ms MinSeries) GetStyle() Style {
|
|
return ms.Style
|
|
}
|
|
|
|
// GetYAxis returns which YAxis the series draws on.
|
|
func (ms MinSeries) GetYAxis() YAxisType {
|
|
return ms.YAxis
|
|
}
|
|
|
|
// Len returns the number of elements in the series.
|
|
func (ms MinSeries) Len() int {
|
|
return ms.InnerSeries.Len()
|
|
}
|
|
|
|
// GetValues gets a value at a given index.
|
|
func (ms *MinSeries) GetValues(index int) (x, y float64) {
|
|
ms.ensureMinValue()
|
|
x, _ = ms.InnerSeries.GetValues(index)
|
|
y = *ms.minValue
|
|
return
|
|
}
|
|
|
|
// Render renders the series.
|
|
func (ms *MinSeries) Render(r Renderer, canvasBox Box, xrange, yrange Range, defaults Style) {
|
|
style := ms.Style.InheritFrom(defaults)
|
|
Draw.LineSeries(r, canvasBox, xrange, yrange, style, ms)
|
|
}
|
|
|
|
func (ms *MinSeries) ensureMinValue() {
|
|
if ms.minValue == nil {
|
|
minValue := math.MaxFloat64
|
|
var y float64
|
|
for x := 0; x < ms.InnerSeries.Len(); x++ {
|
|
_, y = ms.InnerSeries.GetValues(x)
|
|
if y < minValue {
|
|
minValue = y
|
|
}
|
|
}
|
|
ms.minValue = &minValue
|
|
}
|
|
}
|
|
|
|
// Validate validates the series.
|
|
func (ms *MinSeries) Validate() error {
|
|
if ms.InnerSeries == nil {
|
|
return fmt.Errorf("min series requires InnerSeries to be set")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// MaxSeries draws a horizontal line at the maximum value of the inner series.
|
|
type MaxSeries struct {
|
|
Name string
|
|
Style Style
|
|
YAxis YAxisType
|
|
InnerSeries ValuesProvider
|
|
|
|
maxValue *float64
|
|
}
|
|
|
|
// GetName returns the name of the time series.
|
|
func (ms MaxSeries) GetName() string {
|
|
return ms.Name
|
|
}
|
|
|
|
// GetStyle returns the line style.
|
|
func (ms MaxSeries) GetStyle() Style {
|
|
return ms.Style
|
|
}
|
|
|
|
// GetYAxis returns which YAxis the series draws on.
|
|
func (ms MaxSeries) GetYAxis() YAxisType {
|
|
return ms.YAxis
|
|
}
|
|
|
|
// Len returns the number of elements in the series.
|
|
func (ms MaxSeries) Len() int {
|
|
return ms.InnerSeries.Len()
|
|
}
|
|
|
|
// GetValues gets a value at a given index.
|
|
func (ms *MaxSeries) GetValues(index int) (x, y float64) {
|
|
ms.ensureMaxValue()
|
|
x, _ = ms.InnerSeries.GetValues(index)
|
|
y = *ms.maxValue
|
|
return
|
|
}
|
|
|
|
// Render renders the series.
|
|
func (ms *MaxSeries) Render(r Renderer, canvasBox Box, xrange, yrange Range, defaults Style) {
|
|
style := ms.Style.InheritFrom(defaults)
|
|
Draw.LineSeries(r, canvasBox, xrange, yrange, style, ms)
|
|
}
|
|
|
|
func (ms *MaxSeries) ensureMaxValue() {
|
|
if ms.maxValue == nil {
|
|
maxValue := -math.MaxFloat64
|
|
var y float64
|
|
for x := 0; x < ms.InnerSeries.Len(); x++ {
|
|
_, y = ms.InnerSeries.GetValues(x)
|
|
if y > maxValue {
|
|
maxValue = y
|
|
}
|
|
}
|
|
ms.maxValue = &maxValue
|
|
}
|
|
}
|
|
|
|
// Validate validates the series.
|
|
func (ms *MaxSeries) Validate() error {
|
|
if ms.InnerSeries == nil {
|
|
return fmt.Errorf("max series requires InnerSeries to be set")
|
|
}
|
|
return nil
|
|
}
|