'use strict';
// @ts-check;
// ==================================================================================
// battery.js
// ----------------------------------------------------------------------------------
// Description: System Information - library
// for Node.js
// Copyright: (c) 2014 - 2020
// Author: Sebastian Hildebrandt
// ----------------------------------------------------------------------------------
// License: MIT
// ==================================================================================
// 6. Battery
// ----------------------------------------------------------------------------------
const exec = require('child_process').exec;
const fs = require('fs');
const util = require('./util');
let _platform = process.platform;
const _linux = (_platform === 'linux');
const _darwin = (_platform === 'darwin');
const _windows = (_platform === 'win32');
const _freebsd = (_platform === 'freebsd');
const _openbsd = (_platform === 'openbsd');
const _netbsd = (_platform === 'netbsd');
const _sunos = (_platform === 'sunos');
module.exports = function (callback) {
return new Promise((resolve) => {
process.nextTick(() => {
let result = {
hasbattery: false,
cyclecount: 0,
ischarging: false,
designedcapacity: 0,
maxcapacity: 0,
currentcapacity: 0,
voltage: 0,
capacityUnit: '',
percent: 0,
timeremaining: -1,
acconnected: true,
type: '',
model: '',
manufacturer: '',
serial: ''
};
if (_linux) {
let battery_path = '';
if (fs.existsSync('/sys/class/power_supply/BAT1/uevent')) {
battery_path = '/sys/class/power_supply/BAT1/';
} else if (fs.existsSync('/sys/class/power_supply/BAT0/uevent')) {
battery_path = '/sys/class/power_supply/BAT0/';
}
if (battery_path) {
fs.readFile(battery_path + 'uevent', function (error, stdout) {
if (!error) {
let lines = stdout.toString().split('\n');
result.ischarging = (util.getValue(lines, 'POWER_SUPPLY_STATUS', '=').toLowerCase() === 'charging');
result.acconnected = result.ischarging;
result.voltage = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_VOLTAGE_NOW', '='), 10) / 1000000.0;
result.capacityUnit = result.voltage ? 'mWh' : 'mAh';
result.cyclecount = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CYCLE_COUNT', '='), 10);
result.maxcapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_FULL', '='), 10) / 1000.0 / (result.voltage || 1));
result.designedcapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_FULL_DESIGN', '='), 10) / 1000.0 / (result.voltage || 1)) | result.maxcapacity;
result.currentcapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_NOW', '='), 10) / 1000.0 / (result.voltage || 1));
if (!result.maxcapacity) {
result.maxcapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_FULL', '='), 10) / 1000.0;
result.designcapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_FULL_DESIGN', '='), 10) / 1000.0 | result.maxcapacity;
result.currentcapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_NOW', '='), 10) / 1000.0;
}
const percent = util.getValue(lines, 'POWER_SUPPLY_CAPACITY', '=');
const energy = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_NOW', '='), 10);
const power = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_POWER_NOW', '='), 10);
const current = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CURRENT_NOW', '='), 10);
result.percent = parseInt('0' + percent, 10);
if (result.maxcapacity && result.currentcapacity) {
result.hasbattery = true;
if (!percent) {
result.percent = 100.0 * result.currentcapacity / result.maxcapacity;
}
}
if (result.ischarging) {
result.hasbattery = true;
}
if (energy && power) {
result.timeremaining = Math.floor(energy / power * 60);
} else if (current && result.currentcapacity) {
result.timeremaining = Math.floor(result.currentcapacity / current * 60);
}
result.type = util.getValue(lines, 'POWER_SUPPLY_TECHNOLOGY', '=');
result.model = util.getValue(lines, 'POWER_SUPPLY_MODEL_NAME', '=');
result.manufacturer = util.getValue(lines, 'POWER_SUPPLY_MANUFACTURER', '=');
result.serial = util.getValue(lines, 'POWER_SUPPLY_SERIAL_NUMBER', '=');
if (callback) { callback(result); }
resolve(result);
} else {
if (callback) { callback(result); }
resolve(result);
}
});
} else {
if (callback) { callback(result); }
resolve(result);
}
}
if (_freebsd || _openbsd || _netbsd) {
exec('sysctl hw.acpi.battery hw.acpi.acline', function (error, stdout) {
let lines = stdout.toString().split('\n');
const batteries = parseInt('0' + util.getValue(lines, 'hw.acpi.battery.units'), 10);
const percent = parseInt('0' + util.getValue(lines, 'hw.acpi.battery.life'), 10);
result.hasbattery = (batteries > 0);
result.cyclecount = -1;
result.ischarging = util.getValue(lines, 'hw.acpi.acline') !== '1';
result.acconnected = result.ischarging;
result.maxcapacity = -1;
result.currentcapacity = -1;
result.capacityUnit = 'unknown';
result.percent = batteries ? percent : -1;
if (callback) { callback(result); }
resolve(result);
});
}
if (_darwin) {
exec('ioreg -n AppleSmartBattery -r | egrep "CycleCount|IsCharging|DesignCapacity|MaxCapacity|CurrentCapacity|BatterySerialNumber|TimeRemaining|Voltage"; pmset -g batt | grep %', function (error, stdout) {
if (stdout) {
let lines = stdout.toString().replace(/ +/g, '').replace(/"+/g, '').replace(/-/g, '').split('\n');
result.cyclecount = parseInt('0' + util.getValue(lines, 'cyclecount', '='), 10);
result.voltage = parseInt('0' + util.getValue(lines, 'voltage', '='), 10) / 1000.0;
result.capacityUnit = result.voltage ? 'mWh' : 'mAh';
result.maxcapacity = Math.round(parseInt('0' + util.getValue(lines, 'maxcapacity', '='), 10) * (result.voltage || 1));
result.currentcapacity = Math.round(parseInt('0' + util.getValue(lines, 'currentcapacity', '='), 10) * (result.voltage || 1));
result.designedcapacity = Math.round(parseInt('0' + util.getValue(lines, 'DesignCapacity', '='), 10) * (result.voltage || 1));
result.manufacturer = 'Apple';
result.serial = util.getValue(lines, 'BatterySerialNumber', '=');
let percent = -1;
const line = util.getValue(lines, 'internal', 'Battery');
let parts = line.split(';');
if (parts && parts[0]) {
let parts2 = parts[0].split('\t');
if (parts2 && parts2[1]) {
percent = parseFloat(parts2[1].trim().replace(/%/g, ''));
}
}
if (parts && parts[1]) {
result.ischarging = (parts[1].trim() === 'charging');
result.acconnected = (parts[1].trim() !== 'discharging');
} else {
result.ischarging = util.getValue(lines, 'ischarging', '=').toLowerCase() === 'yes';
result.acconnected = result.ischarging;
}
if (result.maxcapacity && result.currentcapacity) {
result.hasbattery = true;
result.type = 'Li-ion';
result.percent = percent !== -1 ? percent : Math.round(100.0 * result.currentcapacity / result.maxcapacity);
if (!result.ischarging) {
result.timeremaining = parseInt('0' + util.getValue(lines, 'TimeRemaining', '='), 10);
}
}
}
if (callback) { callback(result); }
resolve(result);
});
}
if (_sunos) {
if (callback) { callback(result); }
resolve(result);
}
if (_windows) {
try {
util.wmic('Path Win32_Battery Get BatteryStatus, DesignCapacity, EstimatedChargeRemaining, DesignVoltage, FullChargeCapacity /value').then((stdout) => {
if (stdout) {
let lines = stdout.split('\r\n');
let status = util.getValue(lines, 'BatteryStatus', '=').trim();
// 1 = "Discharging"
// 2 = "On A/C"
// 3 = "Fully Charged"
// 4 = "Low"
// 5 = "Critical"
// 6 = "Charging"
// 7 = "Charging High"
// 8 = "Charging Low"
// 9 = "Charging Critical"
// 10 = "Undefined"
// 11 = "Partially Charged"
if (status && status != '10') {
const statusValue = parseInt(status);
result.hasbattery = true;
result.maxcapacity = parseInt(util.getValue(lines, 'DesignCapacity', '=') || 0);
result.designcapacity = parseInt(util.getValue(lines, 'DesignCapacity', '=') || 0);
result.voltage = parseInt(util.getValue(lines, 'DesignVoltage', '=') || 0) / 1000.0;
result.capacityUnit = 'mWh';
result.percent = parseInt(util.getValue(lines, 'EstimatedChargeRemaining', '=') || 0);
result.currentcapacity = parseInt(result.maxcapacity * result.percent / 100);
result.ischarging = (statusValue >= 6 && statusValue <= 9) || statusValue === 11 || (!(statusValue === 3) && !(statusValue === 1) && result.percent < 100);
result.acconnected = result.ischarging || statusValue === 2;
}
}
if (callback) { callback(result); }
resolve(result);
});
} catch (e) {
if (callback) { callback(result); }
resolve(result);
}
}
});
});
};