313 lines
15 KiB
JavaScript
313 lines
15 KiB
JavaScript
'use strict';
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// @ts-check;
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// ==================================================================================
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// battery.js
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// ----------------------------------------------------------------------------------
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// Description: System Information - library
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// for Node.js
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// Copyright: (c) 2014 - 2025
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// Author: Sebastian Hildebrandt
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// ----------------------------------------------------------------------------------
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// License: MIT
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// ==================================================================================
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// 6. Battery
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// ----------------------------------------------------------------------------------
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const exec = require('child_process').exec;
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const fs = require('fs');
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const util = require('./util');
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let _platform = process.platform;
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const _linux = (_platform === 'linux' || _platform === 'android');
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const _darwin = (_platform === 'darwin');
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const _windows = (_platform === 'win32');
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const _freebsd = (_platform === 'freebsd');
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const _openbsd = (_platform === 'openbsd');
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const _netbsd = (_platform === 'netbsd');
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const _sunos = (_platform === 'sunos');
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function parseWinBatteryPart(lines, designedCapacity, fullChargeCapacity) {
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const result = {};
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let status = util.getValue(lines, 'BatteryStatus', ':').trim();
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// 1 = "Discharging"
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// 2 = "On A/C"
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// 3 = "Fully Charged"
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// 4 = "Low"
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// 5 = "Critical"
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// 6 = "Charging"
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// 7 = "Charging High"
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// 8 = "Charging Low"
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// 9 = "Charging Critical"
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// 10 = "Undefined"
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// 11 = "Partially Charged"
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if (status >= 0) {
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const statusValue = status ? parseInt(status) : 0;
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result.status = statusValue;
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result.hasBattery = true;
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result.maxCapacity = fullChargeCapacity || parseInt(util.getValue(lines, 'DesignCapacity', ':') || 0);
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result.designedCapacity = parseInt(util.getValue(lines, 'DesignCapacity', ':') || designedCapacity);
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result.voltage = parseInt(util.getValue(lines, 'DesignVoltage', ':') || 0) / 1000.0;
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result.capacityUnit = 'mWh';
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result.percent = parseInt(util.getValue(lines, 'EstimatedChargeRemaining', ':') || 0);
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result.currentCapacity = parseInt(result.maxCapacity * result.percent / 100);
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result.isCharging = (statusValue >= 6 && statusValue <= 9) || statusValue === 11 || ((statusValue !== 3) && (statusValue !== 1) && result.percent < 100);
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result.acConnected = result.isCharging || statusValue === 2;
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result.model = util.getValue(lines, 'DeviceID', ':');
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} else {
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result.status = -1;
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}
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return result;
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}
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module.exports = function (callback) {
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return new Promise((resolve) => {
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process.nextTick(() => {
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let result = {
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hasBattery: false,
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cycleCount: 0,
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isCharging: false,
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designedCapacity: 0,
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maxCapacity: 0,
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currentCapacity: 0,
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voltage: 0,
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capacityUnit: '',
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percent: 0,
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timeRemaining: null,
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acConnected: true,
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type: '',
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model: '',
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manufacturer: '',
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serial: ''
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};
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if (_linux) {
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let battery_path = '';
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if (fs.existsSync('/sys/class/power_supply/BAT1/uevent')) {
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battery_path = '/sys/class/power_supply/BAT1/';
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} else if (fs.existsSync('/sys/class/power_supply/BAT0/uevent')) {
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battery_path = '/sys/class/power_supply/BAT0/';
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}
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let acConnected = false;
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let acPath = '';
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if (fs.existsSync('/sys/class/power_supply/AC/online')) {
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acPath = '/sys/class/power_supply/AC/online';
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} else if (fs.existsSync('/sys/class/power_supply/AC0/online')) {
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acPath = '/sys/class/power_supply/AC0/online';
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}
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if (acPath) {
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const file = fs.readFileSync(acPath);
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acConnected = file.toString().trim() === '1';
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}
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if (battery_path) {
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fs.readFile(battery_path + 'uevent', function (error, stdout) {
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if (!error) {
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let lines = stdout.toString().split('\n');
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result.isCharging = (util.getValue(lines, 'POWER_SUPPLY_STATUS', '=').toLowerCase() === 'charging');
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result.acConnected = acConnected || result.isCharging;
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result.voltage = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_VOLTAGE_NOW', '='), 10) / 1000000.0;
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result.capacityUnit = result.voltage ? 'mWh' : 'mAh';
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result.cycleCount = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CYCLE_COUNT', '='), 10);
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result.maxCapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_FULL', '=', true, true), 10) / 1000.0 * (result.voltage || 1));
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const desingedMinVoltage = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_VOLTAGE_MIN_DESIGN', '='), 10) / 1000000.0;
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result.designedCapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_FULL_DESIGN', '=', true, true), 10) / 1000.0 * (desingedMinVoltage || result.voltage || 1));
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result.currentCapacity = Math.round(parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_NOW', '='), 10) / 1000.0 * (result.voltage || 1));
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if (!result.maxCapacity) {
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result.maxCapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_FULL', '=', true, true), 10) / 1000.0;
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result.designedCapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_FULL_DESIGN', '=', true, true), 10) / 1000.0 | result.maxCapacity;
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result.currentCapacity = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_NOW', '='), 10) / 1000.0;
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}
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const percent = util.getValue(lines, 'POWER_SUPPLY_CAPACITY', '=');
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const energy = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_ENERGY_NOW', '='), 10);
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const power = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_POWER_NOW', '='), 10);
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const current = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CURRENT_NOW', '='), 10);
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const charge = parseInt('0' + util.getValue(lines, 'POWER_SUPPLY_CHARGE_NOW', '='), 10);
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result.percent = parseInt('0' + percent, 10);
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if (result.maxCapacity && result.currentCapacity) {
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result.hasBattery = true;
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if (!percent) {
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result.percent = 100.0 * result.currentCapacity / result.maxCapacity;
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}
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}
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if (result.isCharging) {
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result.hasBattery = true;
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}
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if (energy && power) {
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result.timeRemaining = Math.floor(energy / power * 60);
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} else if (current && charge) {
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result.timeRemaining = Math.floor(charge / current * 60);
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} else if (current && result.currentCapacity) {
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result.timeRemaining = Math.floor(result.currentCapacity / current * 60);
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}
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result.type = util.getValue(lines, 'POWER_SUPPLY_TECHNOLOGY', '=');
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result.model = util.getValue(lines, 'POWER_SUPPLY_MODEL_NAME', '=');
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result.manufacturer = util.getValue(lines, 'POWER_SUPPLY_MANUFACTURER', '=');
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result.serial = util.getValue(lines, 'POWER_SUPPLY_SERIAL_NUMBER', '=');
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if (callback) { callback(result); }
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resolve(result);
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} else {
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if (callback) { callback(result); }
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resolve(result);
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}
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});
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} else {
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if (callback) { callback(result); }
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resolve(result);
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}
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}
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if (_freebsd || _openbsd || _netbsd) {
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exec('sysctl -i hw.acpi.battery hw.acpi.acline', function (error, stdout) {
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let lines = stdout.toString().split('\n');
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const batteries = parseInt('0' + util.getValue(lines, 'hw.acpi.battery.units'), 10);
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const percent = parseInt('0' + util.getValue(lines, 'hw.acpi.battery.life'), 10);
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result.hasBattery = (batteries > 0);
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result.cycleCount = null;
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result.isCharging = util.getValue(lines, 'hw.acpi.acline') !== '1';
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result.acConnected = result.isCharging;
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result.maxCapacity = null;
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result.currentCapacity = null;
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result.capacityUnit = 'unknown';
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result.percent = batteries ? percent : null;
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if (callback) { callback(result); }
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resolve(result);
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});
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}
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if (_darwin) {
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exec('ioreg -n AppleSmartBattery -r | egrep "CycleCount|IsCharging|DesignCapacity|MaxCapacity|CurrentCapacity|DeviceName|BatterySerialNumber|Serial|TimeRemaining|Voltage"; pmset -g batt | grep %', function (error, stdout) {
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if (stdout) {
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let lines = stdout.toString().replace(/ +/g, '').replace(/"+/g, '').replace(/-/g, '').split('\n');
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result.cycleCount = parseInt('0' + util.getValue(lines, 'cyclecount', '='), 10);
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result.voltage = parseInt('0' + util.getValue(lines, 'voltage', '='), 10) / 1000.0;
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result.capacityUnit = result.voltage ? 'mWh' : 'mAh';
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result.maxCapacity = Math.round(parseInt('0' + util.getValue(lines, 'applerawmaxcapacity', '='), 10) * (result.voltage || 1));
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result.currentCapacity = Math.round(parseInt('0' + util.getValue(lines, 'applerawcurrentcapacity', '='), 10) * (result.voltage || 1));
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result.designedCapacity = Math.round(parseInt('0' + util.getValue(lines, 'DesignCapacity', '='), 10) * (result.voltage || 1));
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result.manufacturer = 'Apple';
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result.serial = util.getValue(lines, 'BatterySerialNumber', '=') || util.getValue(lines, 'Serial', '=');
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result.model = util.getValue(lines, 'DeviceName', '=');
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let percent = null;
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const line = util.getValue(lines, 'internal', 'Battery');
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let parts = line.split(';');
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if (parts && parts[0]) {
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let parts2 = parts[0].split('\t');
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if (parts2 && parts2[1]) {
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percent = parseFloat(parts2[1].trim().replace(/%/g, ''));
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}
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}
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if (parts && parts[1]) {
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result.isCharging = (parts[1].trim() === 'charging');
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result.acConnected = (parts[1].trim() !== 'discharging');
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} else {
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result.isCharging = util.getValue(lines, 'ischarging', '=').toLowerCase() === 'yes';
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result.acConnected = result.isCharging;
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}
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if (result.maxCapacity && result.currentCapacity) {
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result.hasBattery = true;
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result.type = 'Li-ion';
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result.percent = percent !== null ? percent : Math.round(100.0 * result.currentCapacity / result.maxCapacity);
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if (!result.isCharging) {
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result.timeRemaining = parseInt('0' + util.getValue(lines, 'TimeRemaining', '='), 10);
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}
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}
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}
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if (callback) { callback(result); }
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resolve(result);
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});
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}
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if (_sunos) {
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if (callback) { callback(result); }
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resolve(result);
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}
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if (_windows) {
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try {
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const workload = [];
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workload.push(util.powerShell('Get-CimInstance Win32_Battery | select BatteryStatus, DesignCapacity, DesignVoltage, EstimatedChargeRemaining, DeviceID | fl'));
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workload.push(util.powerShell('(Get-WmiObject -Class BatteryStaticData -Namespace ROOT/WMI).DesignedCapacity'));
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workload.push(util.powerShell('(Get-CimInstance -Class BatteryFullChargedCapacity -Namespace ROOT/WMI).FullChargedCapacity'));
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util.promiseAll(
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workload
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).then((data) => {
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if (data) {
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let parts = data.results[0].split(/\n\s*\n/);
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let batteries = [];
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const hasValue = value => /\S/.test(value);
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for (let i = 0; i < parts.length; i++) {
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if (hasValue(parts[i]) && (!batteries.length || !hasValue(parts[i - 1]))) {
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batteries.push([]);
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}
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if (hasValue(parts[i])) {
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batteries[batteries.length - 1].push(parts[i]);
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}
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}
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let designCapacities = data.results[1].split('\r\n').filter(e => e);
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let fullChargeCapacities = data.results[2].split('\r\n').filter(e => e);
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if (batteries.length) {
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let first = false;
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let additionalBatteries = [];
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for (let i = 0; i < batteries.length; i++) {
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let lines = batteries[i][0].split('\r\n');
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const designedCapacity = designCapacities && designCapacities.length >= (i + 1) && designCapacities[i] ? util.toInt(designCapacities[i]) : 0;
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const fullChargeCapacity = fullChargeCapacities && fullChargeCapacities.length >= (i + 1) && fullChargeCapacities[i] ? util.toInt(fullChargeCapacities[i]) : 0;
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const parsed = parseWinBatteryPart(lines, designedCapacity, fullChargeCapacity);
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if (!first && parsed.status > 0 && parsed.status !== 10) {
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result.hasBattery = parsed.hasBattery;
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result.maxCapacity = parsed.maxCapacity;
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result.designedCapacity = parsed.designedCapacity;
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result.voltage = parsed.voltage;
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result.capacityUnit = parsed.capacityUnit;
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result.percent = parsed.percent;
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result.currentCapacity = parsed.currentCapacity;
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result.isCharging = parsed.isCharging;
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result.acConnected = parsed.acConnected;
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result.model = parsed.model;
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first = true;
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} else if (parsed.status !== -1) {
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additionalBatteries.push(
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{
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hasBattery: parsed.hasBattery,
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maxCapacity: parsed.maxCapacity,
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designedCapacity: parsed.designedCapacity,
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voltage: parsed.voltage,
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capacityUnit: parsed.capacityUnit,
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percent: parsed.percent,
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currentCapacity: parsed.currentCapacity,
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isCharging: parsed.isCharging,
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timeRemaining: null,
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acConnected: parsed.acConnected,
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model: parsed.model,
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type: '',
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manufacturer: '',
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serial: ''
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}
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);
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}
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}
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if (!first && additionalBatteries.length) {
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result = additionalBatteries[0];
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additionalBatteries.shift();
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}
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if (additionalBatteries.length) {
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result.additionalBatteries = additionalBatteries;
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}
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}
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}
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if (callback) { callback(result); }
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resolve(result);
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});
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} catch (e) {
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if (callback) { callback(result); }
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resolve(result);
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}
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}
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});
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});
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};
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