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Mini Shell
Mini Shell
'use strict';
// @ts-check;
// ==================================================================================
// battery.js
// ----------------------------------------------------------------------------------
// Description: System Information - library
// for Node.js
// Copyright: (c) 2014 - 2022
// 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' || _platform === 'android');
const _darwin = (_platform === 'darwin');
const _windows = (_platform === 'win32');
const _freebsd = (_platform === 'freebsd');
const _openbsd = (_platform === 'openbsd');
const _netbsd = (_platform === 'netbsd');
const _sunos = (_platform === 'sunos');
function parseWinBatteryPart(lines, designedCapacity, fullChargeCapacity) {
const result = {};
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 >= 0) {
const statusValue = status ? parseInt(status) : 0;
result.status = statusValue;
result.hasBattery = true;
result.maxCapacity = fullChargeCapacity || parseInt(util.getValue(lines, 'DesignCapacity', ':') || 0);
result.designedCapacity = parseInt(util.getValue(lines, 'DesignCapacity', ':') || designedCapacity);
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;
result.model = util.getValue(lines, 'DeviceID', ':');
} else {
result.status = -1;
}
return result;
}
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: null,
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/';
}
let acConnected = false;
let acPath = '';
if (fs.existsSync('/sys/class/power_supply/AC/online')) {
acPath = '/sys/class/power_supply/AC/online';
} else if (fs.existsSync('/sys/class/power_supply/AC0/online')) {
acPath = '/sys/class/power_supply/AC0/online';
}
if (acPath) {
const file = fs.readFileSync(acPath);
acConnected = file.toString().trim() === '1';
}
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 = 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', '=', true, true), 10) / 1000.0 * (result.voltage || 1));
const desingedMinVoltage = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_VOLTAGE_MIN_DESIGN', '='), 10) / 1000000.0;
result.designedCapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_FULL_DESIGN', '=', true, true), 10) / 1000.0 * (desingedMinVoltage || result.voltage || 1));
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', '=', true, true), 10) / 1000.0;
result.designedCapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_FULL_DESIGN', '=', true, true), 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 -i 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 = null;
result.isCharging = util.getValue(lines, 'hw.acpi.acline') !== '1';
result.acConnected = result.isCharging;
result.maxCapacity = null;
result.currentCapacity = null;
result.capacityUnit = 'unknown';
result.percent = batteries ? percent : null;
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, 'applerawmaxcapacity', '='), 10) * (result.voltage || 1));
result.currentCapacity = Math.round(parseInt('0' + util.getValue(lines, 'applerawcurrentcapacity', '='), 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 = null;
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 !== null ? 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 {
const workload = [];
workload.push(util.powerShell('Get-WmiObject Win32_Battery | select BatteryStatus, DesignCapacity, DesignVoltage, EstimatedChargeRemaining, DeviceID | fl'));
workload.push(util.powerShell('(Get-WmiObject -Class BatteryStaticData -Namespace ROOT/WMI).DesignedCapacity'));
workload.push(util.powerShell('(Get-WmiObject -Class BatteryFullChargedCapacity -Namespace ROOT/WMI).FullChargedCapacity'));
util.promiseAll(
workload
).then(data => {
if (data) {
// let parts = data.results[0].split(/\n\s*\n/);
let parts = data.results[0].split(/\n\s*\n/);
let batteries = [];
const hasValue = value => /\S/.test(value);
for (let i = 0; i < parts.length; i++) {
if (hasValue(parts[i]) && (!batteries.length || !hasValue(parts[i - 1]))) {
batteries.push([]);
}
if (hasValue(parts[i])) {
batteries[batteries.length - 1].push(parts[i]);
}
}
let designCapacities = data.results[1].split('\r\n').filter(e => e);
let fullChargeCapacities = data.results[2].split('\r\n').filter(e => e);
if (batteries.length) {
let first = false;
let additionalBatteries = [];
for (let i = 0; i < batteries.length; i++) {
let lines = batteries[i][0].split('\r\n');
const designedCapacity = designCapacities && designCapacities.length >= (i + 1) && designCapacities[i] ? util.toInt(designCapacities[i]) : 0;
const fullChargeCapacity = fullChargeCapacities && fullChargeCapacities.length >= (i + 1) && fullChargeCapacities[i] ? util.toInt(fullChargeCapacities[i]) : 0;
const parsed = parseWinBatteryPart(lines, designedCapacity, fullChargeCapacity);
if (!first && parsed.status > 0 && parsed.status !== 10) {
result.hasBattery = parsed.hasBattery;
result.maxCapacity = parsed.maxCapacity;
result.designedCapacity = parsed.designedCapacity;
result.voltage = parsed.voltage;
result.capacityUnit = parsed.capacityUnit;
result.percent = parsed.percent;
result.currentCapacity = parsed.currentCapacity;
result.isCharging = parsed.isCharging;
result.acConnected = parsed.acConnected;
result.model = parsed.model;
first = true;
} else if (parsed.status !== -1) {
additionalBatteries.push(
{
hasBattery: parsed.hasBattery,
maxCapacity: parsed.maxCapacity,
designedCapacity: parsed.designedCapacity,
voltage: parsed.voltage,
capacityUnit: parsed.capacityUnit,
percent: parsed.percent,
currentCapacity: parsed.currentCapacity,
isCharging: parsed.isCharging,
timeRemaining: null,
acConnected: parsed.acConnected,
model: parsed.model,
type: '',
manufacturer: '',
serial: ''
}
);
}
}
if (!first && additionalBatteries.length) {
result = additionalBatteries[0];
additionalBatteries.shift();
}
if (additionalBatteries.length) {
result.additionalBatteries = additionalBatteries;
}
}
}
if (callback) { callback(result); }
resolve(result);
});
} catch (e) {
if (callback) { callback(result); }
resolve(result);
}
}
});
});
};
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