/
widgets.go
172 lines (153 loc) · 3.92 KB
/
widgets.go
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package gui
import (
"fmt"
"time"
"github.com/mum4k/termdash/cell"
"github.com/mum4k/termdash/linestyle"
"github.com/mum4k/termdash/widgetapi"
"github.com/mum4k/termdash/widgets/gauge"
"github.com/mum4k/termdash/widgets/linechart"
"github.com/mum4k/termdash/widgets/text"
)
type LineChart interface {
widgetapi.Widget
Series(label string, values []float64, opts ...linechart.SeriesOption) error
}
type Text interface {
widgetapi.Widget
Write(text string, wOpts ...text.WriteOption) error
}
type Gauge interface {
widgetapi.Widget
Percent(p int, opts ...gauge.Option) error
}
type chartLegend struct {
text Text
cellOpts []cell.Option
}
type widgets struct {
latencyChart LineChart
paramsText Text
latenciesText Text
bytesText Text
statusCodesText Text
errorsText Text
othersText Text
percentilesChart LineChart
p99Legend chartLegend
p95Legend chartLegend
p90Legend chartLegend
p50Legend chartLegend
progressGauge Gauge
navi Text
}
// Thg given params is used for displayed text.
func newWidgets(targetURL string, rate int, duration time.Duration, method string) (*widgets, error) {
latencyChart, err := newLineChart()
if err != nil {
return nil, err
}
latenciesText, err := newText("")
if err != nil {
return nil, err
}
bytesText, err := newText("")
if err != nil {
return nil, err
}
statusCodesText, err := newText("")
if err != nil {
return nil, err
}
errorsText, err := newText("")
if err != nil {
return nil, err
}
othersText, err := newText("")
if err != nil {
return nil, err
}
p99Color := cell.FgColor(cell.ColorNumber(87))
p99Text, err := newText("p99", text.WriteCellOpts(p99Color))
if err != nil {
return nil, err
}
p95Color := cell.FgColor(cell.ColorGreen)
p95Text, err := newText("p95", text.WriteCellOpts(p95Color))
if err != nil {
return nil, err
}
p90Color := cell.FgColor(cell.ColorYellow)
p90Text, err := newText("p90", text.WriteCellOpts(p90Color))
if err != nil {
return nil, err
}
p50Color := cell.FgColor(cell.ColorMagenta)
p50Text, err := newText("p50", text.WriteCellOpts(p50Color))
if err != nil {
return nil, err
}
percentilesChart, err := newLineChart()
if err != nil {
return nil, err
}
paramsText, err := newText(makeParamsText(targetURL, rate, duration, method))
if err != nil {
return nil, err
}
navi, err := newText("q: quit, Enter: attack, l: next chart, h: prev chart")
if err != nil {
return nil, err
}
progressGauge, err := newGauge()
if err != nil {
return nil, err
}
return &widgets{
latencyChart: latencyChart,
paramsText: paramsText,
latenciesText: latenciesText,
bytesText: bytesText,
statusCodesText: statusCodesText,
errorsText: errorsText,
othersText: othersText,
progressGauge: progressGauge,
percentilesChart: percentilesChart,
p99Legend: chartLegend{p99Text, []cell.Option{p99Color}},
p95Legend: chartLegend{p95Text, []cell.Option{p95Color}},
p90Legend: chartLegend{p90Text, []cell.Option{p90Color}},
p50Legend: chartLegend{p50Text, []cell.Option{p50Color}},
navi: navi,
}, nil
}
func newLineChart() (LineChart, error) {
return linechart.New(
linechart.AxesCellOpts(cell.FgColor(cell.ColorRed)),
linechart.YLabelCellOpts(cell.FgColor(cell.ColorGreen)),
linechart.XLabelCellOpts(cell.FgColor(cell.ColorGreen)),
)
}
func newText(s string, opts ...text.WriteOption) (Text, error) {
t, err := text.New(text.RollContent(), text.WrapAtWords())
if err != nil {
return nil, err
}
if s != "" {
if err := t.Write(s, opts...); err != nil {
return nil, err
}
}
return t, nil
}
func newGauge() (Gauge, error) {
return gauge.New(
gauge.Border(linestyle.None),
)
}
func makeParamsText(targetURL string, rate int, duration time.Duration, method string) string {
return fmt.Sprintf(`Target: %s
Rate: %d
Duration: %v
Method: %s
`, targetURL, rate, duration, method)
}