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package main
import (
"io"
"net/http"
"os"
"regexp"
"strconv"
"time"
"barista.run"
"barista.run/bar"
"barista.run/base/click"
"barista.run/colors"
"barista.run/group"
"barista.run/modules/battery"
"barista.run/modules/clock"
"barista.run/modules/diskspace"
"barista.run/modules/funcs"
"barista.run/modules/netinfo"
"barista.run/modules/systemd"
"barista.run/modules/volume"
"barista.run/modules/volume/pulseaudio"
"barista.run/modules/wlan"
"barista.run/outputs"
"barista.run/pango"
"barista.run/pango/icons/mdi"
)
func main() {
// Constants
colors.LoadFromMap(map[string]string{
// Color palette of Cezanne's Vue de la Baie de Marseille
"good": "#C5D294",
"degraded": "#E9CC67",
"bad": "#FFBC88",
})
mdi.Load() // repo path will be inserted at build time
// Display status of several services
outputServiceStatus := func(goodState systemd.State, degradedState systemd.State, goodIcon *pango.Node, degradedIcon *pango.Node, badIcon *pango.Node) func(systemd.ServiceInfo) bar.Output {
return func(i systemd.ServiceInfo) bar.Output {
state := i.UnitInfo.State
var colorScheme string
var output *pango.Node
switch {
case state == goodState:
colorScheme = "good"
output = goodIcon
case state == degradedState:
colorScheme = "degraded"
output = degradedIcon
default:
colorScheme = "bad"
output = badIcon
}
return outputs.Pango(output).Color(colors.Scheme(colorScheme)).OnClick(click.Right(func() {
i.Restart()
}))
}
}
updateSuccessIcon := pango.Icon("mdi-reload")
updatingIcon := pango.Icon("mdi-update")
updateFailIcon := pango.Icon("mdi-reload-alert")
garbageFullIcon := pango.Icon("mdi-delete")
garbageEmptyingIcon := pango.Icon("mdi-delete-restore")
garbageEmptyIcon := pango.Icon("mdi-delete-outline")
barista.Add(group.Simple(systemd.Service("nixos-upgrade").Output(outputServiceStatus(systemd.StateInactive, systemd.StateActivating, updateSuccessIcon, updatingIcon, updateFailIcon)),
systemd.Service("nix-gc").Output(outputServiceStatus(systemd.StateInactive, systemd.StateActivating, garbageEmptyIcon, garbageEmptyingIcon, garbageFullIcon))))
emacsIcon := pango.Icon("mdi-alpha-e-circle")
barista.Add(systemd.UserService("emacs").Output(outputServiceStatus(systemd.StateActive, systemd.StateActivating, emacsIcon, emacsIcon, emacsIcon)))
// Display space left on /
storageIcon := pango.Icon("mdi-database")
barista.Add(diskspace.New("/").Output(func(i diskspace.Info) bar.Output {
used := i.UsedPct()
var colorScheme string
if used >= 90 {
colorScheme = "bad"
} else if used >= 50 {
colorScheme = "degraded"
} else {
colorScheme = "good"
}
return outputs.Pango(storageIcon, pango.Textf(" %d%%", used)).Color(colors.Scheme(colorScheme))
}))
// Check connection to the Mullvad VPN
mullvadIsUpRe := regexp.MustCompile(`^You are connected to Mullvad`)
mullvadServerRe := regexp.MustCompile(`\(server (.*)\)`)
mullvadIpRe := regexp.MustCompile(`Your IP address is (.*)`)
client := &http.Client{Timeout: 3 * time.Second}
incognitoIcon := pango.Icon("mdi-incognito")
incognitoOffIcon := pango.Icon("mdi-incognito-off")
barista.Add(funcs.Every(5*time.Second, func(s bar.Sink) {
icon := incognitoOffIcon
message := pango.Text("")
colorScheme := "bad"
res, err := client.Get("https://am.i.mullvad.net/connected")
if !s.Error(err) {
status, err := io.ReadAll(res.Body)
res.Body.Close()
if !s.Error(err) {
var re *regexp.Regexp
if mullvadIsUpRe.Match(status) {
re = mullvadServerRe
colorScheme = "good"
icon = incognitoIcon
} else {
re = mullvadIpRe
colorScheme = "degraded"
}
result := re.FindSubmatch(status)
if len(result) >= 2 {
message = pango.Textf(" %s", result[1])
}
}
}
client.CloseIdleConnections()
s.Output(outputs.Pango(icon, message).Color(colors.Scheme(colorScheme)))
}))
// Display the wifi status
wifiOffIcon := pango.Icon("mdi-wifi-off")
wifiRefreshIcon := pango.Icon("mdi-wifi-refresh")
wifiOnIcon := pango.Icon("mdi-wifi")
barista.Add(wlan.Any().Output(func(w wlan.Info) bar.Output {
var output *pango.Node
var colorScheme string
switch {
case w.Connected():
output = pango.New(wifiOnIcon, pango.Textf(" %s", w.SSID))
colorScheme = "good"
case w.Connecting():
output = wifiRefreshIcon
colorScheme = "degraded"
default:
output = wifiOffIcon
colorScheme = "bad"
}
return outputs.Pango(output).Color(colors.Scheme(colorScheme))
}))
// Display the ethernet status
ethernetCableOnIcon := pango.Icon("mdi-ethernet-cable")
ethernetCableOffIcon := pango.Icon("mdi-ethernet-cable-off")
barista.Add(netinfo.Prefix("e").Output(func(s netinfo.State) bar.Output {
var output *pango.Node
var colorScheme string
switch {
case s.Connected():
ip := "<no ip>"
if len(s.IPs) > 0 {
ip = s.IPs[0].String()
}
output = pango.New(ethernetCableOnIcon, pango.Textf(" %s", ip))
colorScheme = "good"
case s.Connecting():
output = ethernetCableOnIcon
colorScheme = "degraded"
default:
output = ethernetCableOffIcon
colorScheme = "bad"
}
return outputs.Pango(output).Color(colors.Scheme(colorScheme))
}))
// Display the battery status
batteryIcons := [11]*pango.Node{pango.Icon("mdi-battery-outline"),
pango.Icon("mdi-battery-10"),
pango.Icon("mdi-battery-20"),
pango.Icon("mdi-battery-30"),
pango.Icon("mdi-battery-40"),
pango.Icon("mdi-battery-50"),
pango.Icon("mdi-battery-60"),
pango.Icon("mdi-battery-70"),
pango.Icon("mdi-battery-80"),
pango.Icon("mdi-battery-90"),
pango.Icon("mdi-battery")}
batteryChargingIcons := [11]*pango.Node{pango.Icon("mdi-battery-charging-outline"),
pango.Icon("mdi-battery-charging-10"),
pango.Icon("mdi-battery-charging-20"),
pango.Icon("mdi-battery-charging-30"),
pango.Icon("mdi-battery-charging-40"),
pango.Icon("mdi-battery-charging-50"),
pango.Icon("mdi-battery-charging-60"),
pango.Icon("mdi-battery-charging-70"),
pango.Icon("mdi-battery-charging-80"),
pango.Icon("mdi-battery-charging-90"),
pango.Icon("mdi-battery-charging-100")}
barista.Add(battery.All().Output(func(b battery.Info) bar.Output {
switch b.Status {
case battery.Disconnected, battery.Unknown:
return nil
default:
var icons [11]*pango.Node
var colorScheme string
if b.Status == battery.Charging {
icons = batteryChargingIcons
colorScheme = "good"
} else {
icons = batteryIcons
if b.RemainingPct() <= 10 {
colorScheme = "bad"
} else if b.RemainingPct() <= 20 {
colorScheme = "degraded"
} else {
colorScheme = "good"
}
}
icon := icons[b.RemainingPct()/10]
return outputs.Pango(icon, pango.Textf(" %d%%", b.RemainingPct())).Color(colors.Scheme(colorScheme))
}
}))
// Display brightness
brightnessHighIcon := pango.Icon("mdi-lightbulb-on")
brightnessMidIcon := pango.Icon("mdi-lightbulb-on-outline")
brightnessLowIcon := pango.Icon("mdi-lightbulb-outline")
ReadBrightness := func(name string) (int, error) {
valueStr, err := os.ReadFile("/sys/class/backlight/intel_backlight/" + name)
if err != nil {
return 0, err
}
return strconv.Atoi(string(valueStr[:len(valueStr)-1]))
}
brightnessMax, _ := ReadBrightness("max_brightness") // always non-zero, unless there's an error
barista.Add(funcs.Every(time.Second, func(s bar.Sink) {
brightness, err := ReadBrightness("brightness")
if !s.Error(err) {
value := (brightness * 100) / brightnessMax
var icon *pango.Node
if value <= 30 {
icon = brightnessLowIcon
} else if value < 70 {
icon = brightnessMidIcon
} else {
icon = brightnessHighIcon
}
s.Output(outputs.Pango(icon, pango.Textf(" %d%%", value)))
}
}))
// Display output volume
volumeOffIcon := pango.Icon("mdi-volume-variant-off")
volumeLowIcon := pango.Icon("mdi-volume-low")
volumeMidIcon := pango.Icon("mdi-volume-medium")
volumeHighIcon := pango.Icon("mdi-volume-high")
barista.Add(volume.New(pulseaudio.DefaultSink()).Output(func(v volume.Volume) bar.Output {
volume := v.Pct()
var icon *pango.Node
if volume == 0 || v.Mute {
icon = volumeOffIcon
} else if volume <= 30 {
icon = volumeLowIcon
} else if volume <= 70 {
icon = volumeMidIcon
} else {
icon = volumeHighIcon
}
return outputs.Pango(icon, pango.Textf(" %d%%", volume))
}))
// Display microphone volume
microphoneOffIcon := pango.Icon("mdi-microphone-off")
microphoneIcon := pango.Icon("mdi-microphone")
barista.Add(volume.New(pulseaudio.DefaultSource()).Output(func(v volume.Volume) bar.Output {
volume := v.Pct() // the value returned by pulseaudio may be weird
var icon *pango.Node
if volume == 0 || v.Mute {
icon = microphoneOffIcon
} else {
icon = microphoneIcon
}
return outputs.Pango(icon, pango.Textf(" %d%%", volume))
}))
barista.Add(clock.Local().OutputFormat("2006-01-02 15:04:05"))
panic(barista.Run())
}
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