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package widgets
import (
"fmt"
"log"
"time"
"github.com/distatus/battery"
"github.com/prometheus/client_golang/prometheus"
. "github.com/xxxserxxx/gotop/v3/termui"
)
type BatteryGauge struct {
*Gauge
metric prometheus.Gauge
}
func NewBatteryGauge() *BatteryGauge {
self := &BatteryGauge{Gauge: NewGauge()}
self.Title = " Power Level "
self.update()
go func() {
for range time.NewTicker(time.Second).C {
self.Lock()
self.update()
self.Unlock()
}
}()
return self
}
func (b *BatteryGauge) EnableMetric() {
bats, err := battery.GetAll()
if err != nil {
log.Printf("error setting up metrics: %v", err)
return
}
mx := 0.0
cu := 0.0
for _, bat := range bats {
mx += bat.Full
cu += bat.Current
gauge := prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: "gotop",
Subsystem: "battery",
Name: "total",
})
gauge.Set(cu / mx)
b.metric = gauge
prometheus.MustRegister(gauge)
}
}
func (self *BatteryGauge) update() {
bats, err := battery.GetAll()
if err != nil {
log.Printf("error setting up batteries: %v", err)
return
}
mx := 0.0
cu := 0.0
charging := "%d%% ⚡%s"
rate := 0.0
for _, bat := range bats {
mx += bat.Full
cu += bat.Current
if rate < bat.ChargeRate {
rate = bat.ChargeRate
}
if bat.State == battery.Charging {
charging = "%d%% 🔌%s"
}
}
tn := (mx - cu) / rate
d, _ := time.ParseDuration(fmt.Sprintf("%fh", tn))
self.Percent = int((cu / mx) * 100.0)
self.Label = fmt.Sprintf(charging, self.Percent, d.Truncate(time.Minute))
if self.metric != nil {
self.metric.Set(cu / mx)
}
}
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