local naughty = require("naughty")
local wibox = require("wibox")
-local math = { floor = math.floor, min = math.min }
+local math = { abs = math.abs,
+ floor = math.floor,
+ log10 = math.log10,
+ min = math.min }
local string = { format = string.format }
-local tonumber = tonumber
+local tonumber = tonumber
local setmetatable = setmetatable
-- Battery infos
}
bat_now = {
- status = "Not present",
+ status = "N/A",
ac_status = "N/A",
perc = "N/A",
time = "N/A",
bat_now.n_status = {}
for i = 1, #batteries do
- bat_now.n_status[i] = "Not present"
+ bat_now.n_status[i] = "N/A"
end
function update()
- local sum_rate_current = 0
- local sum_rate_voltage = 0
- local sum_rate_power = 0
- local sum_energy_now = 0
- local sum_energy_full = 0
+ local sum_rate_current = 0
+ local sum_rate_voltage = 0
+ local sum_rate_power = 0
+ local sum_energy_now = 0
+ local sum_energy_full = 0
local sum_energy_percentage = 0
+ local pspath = "/sys/class/power_supply/"
for i, battery in ipairs(batteries) do
- local bstr = "/sys/class/power_supply/" .. battery
+ local bstr = pspath .. battery
local present = first_line(bstr .. "/present")
- if present == "1"
- then
+ if tonumber(present) == 1 then
-- current_now(I)[uA], voltage_now(U)[uV], power_now(P)[uW]
local rate_current = tonumber(first_line(bstr .. "/current_now"))
local rate_voltage = tonumber(first_line(bstr .. "/voltage_now"))
local energy_percentage = tonumber(first_line(bstr .. "/capacity")) or
math.floor((energy_now / energy_full) * 100)
- if bat_now.n_status[i] ~= "Charging" and bat_now.n_status[i] ~= "Discharging"
- then
- bat_now.n_status[i] = first_line(bstr .. "/status") or "N/A"
- end
+ bat_now.n_status[i] = first_line(bstr .. "/status") or "N/A"
sum_rate_current = sum_rate_current + (rate_current or 0)
sum_rate_voltage = sum_rate_voltage + rate_voltage
sum_rate_power = sum_rate_power + (rate_power or ((rate_voltage * rate_current) / 1e6))
- sum_energy_now = sum_energy_now + energy_now
+ sum_energy_now = sum_energy_now + (energy_now or 0)
sum_energy_full = sum_energy_full + energy_full
sum_energy_percentage = sum_energy_percentage + energy_percentage
end
end
bat_now.status = bat_now.n_status[1]
- bat_now.ac_status = first_line(string.format("/sys/class/power_supply/%s/online", ac)) or "N/A"
+ bat_now.ac_status = tonumber(first_line(string.format("%s%s/online", pspath, ac))) or "N/A"
- -- update {perc,time,watt} iff rate > 0 and battery not full
- if (sum_rate_current > 0 or sum_rate_power > 0) and not (bat_now.status == "Full")
- then
- local rate_time = 0
+ if bat_now.status ~= "N/A" then
+ -- update {perc,time,watt} iff battery not full and rate > 0
+ if bat_now.status ~= "Full" and (sum_rate_current > 0 or sum_rate_power > 0) then
+ local rate_time = 0
- if bat_now.status == "Charging" then
- rate_time = (sum_energy_full - sum_energy_now) / (sum_rate_power or sum_rate_current)
- elseif bat_now.status == "Discharging" then
- rate_time = sum_energy_now / (sum_rate_power or sum_rate_current)
- end
+ if bat_now.status == "Charging" then
+ rate_time = (sum_energy_full - sum_energy_now) / (sum_rate_power or sum_rate_current)
+ else -- Discharging
+ rate_time = sum_energy_now / (sum_rate_power or sum_rate_current)
+ end
- local hours = math.floor(rate_time)
- local minutes = math.floor((rate_time - hours) * 60)
- local watt = sum_rate_power / 1e6
+ if rate_time < 0.01 then -- check for magnitude discrepancies
+ rate_time_magnitude = math.abs(math.floor(math.log10(rate_time)))
+ rate_time = rate_time * 10^(rate_time_magnitude - 2)
+ end
- bat_now.perc = string.format("%d", math.min(100, sum_energy_percentage / #batteries))
- bat_now.time = string.format("%02d:%02d", hours, minutes)
- bat_now.watt = string.format("%.2fW", watt)
+ local hours = math.floor(rate_time)
+ local minutes = math.floor((rate_time - hours) * 60)
+ bat_now.perc = tonumber(string.format("%d", math.min(100, sum_energy_percentage / #batteries)))
+ bat_now.time = string.format("%02d:%02d", hours, minutes)
+ bat_now.watt = tonumber(string.format("%.2f", sum_rate_power / 1e6))
+ elseif bat_now.status == "Full" then
+ bat_now.perc = 100
+ bat_now.time = "00:00"
+ bat_now.watt = 0
+ end
end
widget = bat.widget
settings()
-- notifications for low and critical states
- if bat_now.status == "Discharging" and notify == "on" and bat_now.perc then
- local nperc = tonumber(bat_now.perc) or 100
- if nperc <= 5 then
+ if notify == "on" and bat_now.perc and bat_now.status == "Discharging" then
+ if bat_now.perc <= 5 then
bat.id = naughty.notify({
preset = bat_notification_critical_preset,
- replaces_id = bat.id,
+ replaces_id = bat.id
}).id
- elseif nperc <= 15 then
+ elseif bat_now.perc <= 15 then
bat.id = naughty.notify({
preset = bat_notification_low_preset,
- replaces_id = bat.id,
+ replaces_id = bat.id
}).id
end
end