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package status // import "hhvn.uk/hbspbar/status"
import (
"os"
"io"
"path"
"strings"
// "hhvn.uk/hbspbar/drw"
"hhvn.uk/hbspbar/config"
"hhvn.uk/hbspbar/common"
)
func read(file string) (string, error) {
f, err := os.Open(file)
if err != nil { return "", err }
content, err := io.ReadAll(f)
if err != nil { return "", err }
str := strings.TrimSuffix(string(content), "\n")
return str, nil
}
func init() {
name := "bat"
register(name)
dir := "/sys/class/power_supply"
const (
nothing = iota
charging
discharging
)
go func(){
for {
u := newUpdate(name)
dirs, _ := os.ReadDir(dir)
if dirs == nil { return }
totalcap := 0
usedcap := 0
stati := nothing
for _, d := range dirs {
if !strings.HasPrefix(d.Name(), "BAT") { continue }
caps, err := read(path.Join(dir, d.Name(), "capacity"))
if err != nil { return }
capi, err := common.Intify(caps)
if err != nil { return }
totalcap += 100
usedcap += capi
stats, err := read(path.Join(dir, d.Name(), "status"))
if err != nil { return }
// Doesn't deal with 1 battery charging, and another discharging but w/e
switch stats {
case "Charging": if charging > stati { stati = charging }
case "Discharging": if discharging > stati { stati = discharging}
}
}
if totalcap == 0 { return }
avgcap := (usedcap * 100) / totalcap
var c uint32
// Colour of outline = charge indicator
switch stati {
case nothing: c = config.Fg
case charging: c = Green
case discharging: c = Red
}
var iw int = 20
var ih int = int(config.H) - 8
var w int = iw * avgcap / 100
// Draw nose
u.drawRect(2, int((config.H - 5) / 2), 2, 5, c, true)
// Draw border
u.drawRect(4, 3, iw + 2, ih + 2, c, false)
switch {
case avgcap < 25: c = Red
case avgcap >= 99: c = Green
default: c = config.FgDark
}
// Fill
u.drawRect(4 + iw - w, 4, w + 1, ih, c, true)
updates <- u
sleep(1)
}
}()
}
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