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|
package widgets
import (
"fmt"
"image"
"sort"
"time"
ui "github.com/gizak/termui/v3"
"github.com/prometheus/client_golang/prometheus"
"github.com/xxxserxxx/gotop/v4/devices"
"github.com/xxxserxxx/gotop/v4/utils"
)
type TempScale rune
const (
Celsius TempScale = 'C'
Fahrenheit = 'F'
)
type TempWidget struct {
*ui.Block // inherits from Block instead of a premade Widget
updateInterval time.Duration
Data map[string]int
TempThreshold int
TempLowColor ui.Color
TempHighColor ui.Color
TempScale TempScale
tempsMetric map[string]prometheus.Gauge
}
func NewTempWidget(tempScale TempScale, filter []string) *TempWidget {
self := &TempWidget{
Block: ui.NewBlock(),
updateInterval: time.Second * 5,
Data: make(map[string]int),
TempThreshold: 80,
TempScale: tempScale,
}
self.Title = " Temperatures "
if len(filter) > 0 {
for _, t := range filter {
self.Data[t] = 0
}
} else {
for _, t := range devices.Devices(devices.Temperatures, false) {
self.Data[t] = 0
}
}
if tempScale == Fahrenheit {
self.TempThreshold = utils.CelsiusToFahrenheit(self.TempThreshold)
}
self.update()
go func() {
for range time.NewTicker(self.updateInterval).C {
self.Lock()
self.update()
self.Unlock()
}
}()
return self
}
func (temp *TempWidget) EnableMetric() {
temp.tempsMetric = make(map[string]prometheus.Gauge)
for k, v := range temp.Data {
gauge := prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: "gotop",
Subsystem: "temp",
Name: k,
})
gauge.Set(float64(v))
prometheus.MustRegister(gauge)
temp.tempsMetric[k] = gauge
}
}
// Custom Draw method instead of inheriting from a generic Widget.
func (temp *TempWidget) Draw(buf *ui.Buffer) {
temp.Block.Draw(buf)
var keys []string
for key := range temp.Data {
keys = append(keys, key)
}
sort.Strings(keys)
for y, key := range keys {
if y+1 > temp.Inner.Dy() {
break
}
var fg ui.Color
if temp.Data[key] < temp.TempThreshold {
fg = temp.TempLowColor
} else {
fg = temp.TempHighColor
}
s := ui.TrimString(key, (temp.Inner.Dx() - 4))
buf.SetString(s,
ui.Theme.Default,
image.Pt(temp.Inner.Min.X, temp.Inner.Min.Y+y),
)
if temp.tempsMetric != nil {
temp.tempsMetric[key].Set(float64(temp.Data[key]))
}
temperature := fmt.Sprintf("%3d°%c", temp.Data[key], temp.TempScale)
buf.SetString(
temperature,
ui.NewStyle(fg),
image.Pt(temp.Inner.Max.X-(len(temperature)-1), temp.Inner.Min.Y+y),
)
}
}
func (temp *TempWidget) update() {
devices.UpdateTemps(temp.Data)
for name, val := range temp.Data {
if temp.TempScale == Fahrenheit {
temp.Data[name] = utils.CelsiusToFahrenheit(val)
} else {
temp.Data[name] = val
}
}
}
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