text: 'use strict';
  // @ts-check
  // ==================================================================================
  // system.js
  // ----------------------------------------------------------------------------------
  // Description:   System Information - library
  //                for Node.js
  // Copyright:     (c) 2014 - 2022
  // Author:        Sebastian Hildebrandt
  // ----------------------------------------------------------------------------------
  // License:       MIT
  // ==================================================================================
  // 2. System (Hardware, BIOS, Base Board)
  // ----------------------------------------------------------------------------------
  
  const fs = require('fs');
  const os = require('os');
  const util = require('./util');
  const exec = require('child_process').exec;
  const execSync = require('child_process').execSync;
  const execPromise = util.promisify(require('child_process').exec);
  
  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 system(callback) {
  
    return new Promise((resolve) => {
      process.nextTick(() => {
  
        let result = {
          manufacturer: '',
          model: 'Computer',
          version: '',
          serial: '-',
          uuid: '-',
          sku: '-',
          virtual: false
        };
  
        if (_linux || _freebsd || _openbsd || _netbsd) {
          exec('export LC_ALL=C; dmidecode -t system 2>/dev/null; unset LC_ALL', function (error, stdout) {
            // if (!error) {
            let lines = stdout.toString().split('\n');
            result.manufacturer = util.getValue(lines, 'manufacturer');
            result.model = util.getValue(lines, 'product name');
            result.version = util.getValue(lines, 'version');
            result.serial = util.getValue(lines, 'serial number');
            result.uuid = util.getValue(lines, 'uuid').toLowerCase();
            result.sku = util.getValue(lines, 'sku number');
            // }
            // Non-Root values
            const cmd = `echo -n "product_name: "; cat /sys/devices/virtual/dmi/id/product_name 2>/dev/null; echo;
              echo -n "product_serial: "; cat /sys/devices/virtual/dmi/id/product_serial 2>/dev/null; echo;
              echo -n "product_uuid: "; cat /sys/devices/virtual/dmi/id/product_uuid 2>/dev/null; echo;
              echo -n "product_version: "; cat /sys/devices/virtual/dmi/id/product_version 2>/dev/null; echo;
              echo -n "sys_vendor: "; cat /sys/devices/virtual/dmi/id/sys_vendor 2>/dev/null; echo;`;
            try {
              lines = execSync(cmd).toString().split('\n');
              result.manufacturer = result.manufacturer === '' ? util.getValue(lines, 'sys_vendor') : result.manufacturer;
              result.model = result.model === '' ? util.getValue(lines, 'product_name') : result.model;
              result.version = result.version === '' ? util.getValue(lines, 'product_version') : result.version;
              result.serial = result.serial === '' ? util.getValue(lines, 'product_serial') : result.serial;
              result.uuid = result.uuid === '' ? util.getValue(lines, 'product_uuid').toLowerCase() : result.uuid;
            } catch (e) {
              util.noop();
            }
            if (!result.serial || result.serial.toLowerCase().indexOf('o.e.m.') !== -1) { result.serial = '-'; }
            if (!result.manufacturer || result.manufacturer.toLowerCase().indexOf('o.e.m.') !== -1) { result.manufacturer = ''; }
            if (!result.model || result.model.toLowerCase().indexOf('o.e.m.') !== -1) { result.model = 'Computer'; }
            if (!result.version || result.version.toLowerCase().indexOf('o.e.m.') !== -1) { result.version = ''; }
            if (!result.sku || result.sku.toLowerCase().indexOf('o.e.m.') !== -1) { result.sku = '-'; }
  
            // detect virtual (1)
            if (result.model.toLowerCase() === 'virtualbox' || result.model.toLowerCase() === 'kvm' || result.model.toLowerCase() === 'virtual machine' || result.model.toLowerCase() === 'bochs' || result.model.toLowerCase().startsWith('vmware') || result.model.toLowerCase().startsWith('droplet')) {
              result.virtual = true;
              switch (result.model.toLowerCase()) {
                case 'virtualbox':
                  result.virtualHost = 'VirtualBox';
                  break;
                case 'vmware':
                  result.virtualHost = 'VMware';
                  break;
                case 'kvm':
                  result.virtualHost = 'KVM';
                  break;
                case 'bochs':
                  result.virtualHost = 'bochs';
                  break;
              }
            }
            if (result.manufacturer.toLowerCase().startsWith('vmware') || result.manufacturer.toLowerCase() === 'xen') {
              result.virtual = true;
              switch (result.manufacturer.toLowerCase()) {
                case 'vmware':
                  result.virtualHost = 'VMware';
                  break;
                case 'xen':
                  result.virtualHost = 'Xen';
                  break;
              }
            }
            if (!result.virtual) {
              try {
                const disksById = execSync('ls -1 /dev/disk/by-id/ 2>/dev/null').toString();
                if (disksById.indexOf('_QEMU_') >= 0) {
                  result.virtual = true;
                  result.virtualHost = 'QEMU';
                }
                if (disksById.indexOf('_VBOX_') >= 0) {
                  result.virtual = true;
                  result.virtualHost = 'VirtualBox';
                }
              } catch (e) {
                util.noop();
              }
            }
            if (!result.virtual && (os.release().toLowerCase().indexOf('microsoft') >= 0 || os.release().toLowerCase().endsWith('wsl2'))) {
              const kernelVersion = parseFloat(os.release().toLowerCase());
              result.virtual = true;
              result.manufacturer = 'Microsoft';
              result.model = 'WSL';
              result.version = kernelVersion < 4.19 ? '1' : '2';
            }
            if ((_freebsd || _openbsd || _netbsd) && !result.virtualHost) {
              try {
                const procInfo = execSync('dmidecode -t 4');
                const procLines = procInfo.toString().split('\n');
                const procManufacturer = util.getValue(procLines, 'manufacturer', ':', true);
                switch (procManufacturer.toLowerCase()) {
                  case 'virtualbox':
                    result.virtualHost = 'VirtualBox';
                    break;
                  case 'vmware':
                    result.virtualHost = 'VMware';
                    break;
                  case 'kvm':
                    result.virtualHost = 'KVM';
                    break;
                  case 'bochs':
                    result.virtualHost = 'bochs';
                    break;
                }
              } catch (e) {
                util.noop();
              }
            }
            // detect docker
            if (fs.existsSync('/.dockerenv') || fs.existsSync('/.dockerinit')) {
              result.model = 'Docker Container';
            }
            try {
              const stdout = execSync('dmesg 2>/dev/null | grep -iE "virtual|hypervisor" | grep -iE "vmware|qemu|kvm|xen" | grep -viE "Nested Virtualization|/virtual/"');
              // detect virtual machines
              let lines = stdout.toString().split('\n');
              if (lines.length > 0) {
                if (result.model === 'Computer') { result.model = 'Virtual machine'; }
                result.virtual = true;
                if (stdout.toString().toLowerCase().indexOf('vmware') >= 0 && !result.virtualHost) {
                  result.virtualHost = 'VMware';
                }
                if (stdout.toString().toLowerCase().indexOf('qemu') >= 0 && !result.virtualHost) {
                  result.virtualHost = 'QEMU';
                }
                if (stdout.toString().toLowerCase().indexOf('xen') >= 0 && !result.virtualHost) {
                  result.virtualHost = 'Xen';
                }
                if (stdout.toString().toLowerCase().indexOf('kvm') >= 0 && !result.virtualHost) {
                  result.virtualHost = 'KVM';
                }
              }
            } catch (e) {
              util.noop();
            }
  
            if (result.manufacturer === '' && result.model === 'Computer' && result.version === '') {
              // Check Raspberry Pi
              fs.readFile('/proc/cpuinfo', function (error, stdout) {
                if (!error) {
                  let lines = stdout.toString().split('\n');
                  result.model = util.getValue(lines, 'hardware', ':', true).toUpperCase();
                  result.version = util.getValue(lines, 'revision', ':', true).toLowerCase();
                  result.serial = util.getValue(lines, 'serial', ':', true);
                  const model = util.getValue(lines, 'model:', ':', true);
                  // reference values: https://elinux.org/RPi_HardwareHistory
                  // https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md
                  if ((result.model === 'BCM2835' || result.model === 'BCM2708' || result.model === 'BCM2709' || result.model === 'BCM2710' || result.model === 'BCM2711' || result.model === 'BCM2836' || result.model === 'BCM2837') && model.toLowerCase().indexOf('raspberry') >= 0) {
                    const rPIRevision = util.decodePiCpuinfo(lines);
                    result.model = rPIRevision.model;
                    result.version = rPIRevision.revisionCode;
                    result.manufacturer = 'Raspberry Pi Foundation';
                    result.raspberry = {
                      manufacturer: rPIRevision.manufacturer,
                      processor: rPIRevision.processor,
                      type: rPIRevision.type,
                      revision: rPIRevision.revision
                    };
                  }
  
                  // if (result.model === 'BCM2835' || result.model === 'BCM2708' || result.model === 'BCM2709' || result.model === 'BCM2835' || result.model === 'BCM2837') {
  
  
                  //   // Pi 4
                  //   if (['d03114'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 4 Model B';
                  //     result.version = result.version + ' - Rev. 1.4';
                  //   }
                  //   if (['b03112', 'c03112'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 4 Model B';
                  //     result.version = result.version + ' - Rev. 1.2';
                  //   }
                  //   if (['a03111', 'b03111', 'c03111'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 4 Model B';
                  //     result.version = result.version + ' - Rev. 1.1';
                  //   }
                  //   // Pi 3
                  //   if (['a02082', 'a22082', 'a32082', 'a52082'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 3 Model B';
                  //     result.version = result.version + ' - Rev. 1.2';
                  //   }
                  //   if (['a22083'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 3 Model B';
                  //     result.version = result.version + ' - Rev. 1.3';
                  //   }
                  //   if (['a020d3'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 3 Model B+';
                  //     result.version = result.version + ' - Rev. 1.3';
                  //   }
                  //   if (['9020e0'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 3 Model A+';
                  //     result.version = result.version + ' - Rev. 1.3';
                  //   }
                  //   // Pi 2 Model B
                  //   if (['a01040'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 2 Model B';
                  //     result.version = result.version + ' - Rev. 1.0';
                  //   }
                  //   if (['a01041', 'a21041'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 2 Model B';
                  //     result.version = result.version + ' - Rev. 1.1';
                  //   }
                  //   if (['a22042', 'a02042'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi 2 Model B';
                  //     result.version = result.version + ' - Rev. 1.2';
                  //   }
  
                  //   // Compute Model
                  //   if (['a02100'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi CM3+';
                  //     result.version = result.version + ' - Rev 1.0';
                  //   }
                  //   if (['a020a0', 'a220a0'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi CM3';
                  //     result.version = result.version + ' - Rev 1.0';
                  //   }
                  //   if (['900061'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi CM';
                  //     result.version = result.version + ' - Rev 1.1';
                  //   }
  
                  //   // Pi Zero
                  //   if (['900092', '920092'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Zero';
                  //     result.version = result.version + ' - Rev 1.2';
                  //   }
                  //   if (['900093', '920093'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Zero';
                  //     result.version = result.version + ' - Rev 1.3';
                  //   }
                  //   if (['9000c1'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Zero W';
                  //     result.version = result.version + ' - Rev 1.1';
                  //   }
  
                  //   // A, B, A+ B+
                  //   if (['0002', '0003'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Model B';
                  //     result.version = result.version + ' - Rev 1.0';
                  //   }
                  //   if (['0004', '0005', '0006', '000d', '000e', '000f'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Model B';
                  //     result.version = result.version + ' - Rev 2.0';
                  //   }
                  //   if (['0007', '0008', '0009'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Model A';
                  //     result.version = result.version + ' - Rev 2.0';
                  //   }
                  //   if (['0010'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Model B+';
                  //     result.version = result.version + ' - Rev 1.0';
                  //   }
                  //   if (['0012'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Model A+';
                  //     result.version = result.version + ' - Rev 1.0';
                  //   }
                  //   if (['0013', '900032'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Model B+';
                  //     result.version = result.version + ' - Rev 1.2';
                  //   }
                  //   if (['0015', '900021'].indexOf(result.version) >= 0) {
                  //     result.model = result.model + ' - Pi Model A+';
                  //     result.version = result.version + ' - Rev 1.1';
                  //   }
                  //   if (result.model.indexOf('Pi') !== -1 && result.version) {  // Pi, Pi Zero
                  //     result.manufacturer = 'Raspberry Pi Foundation';
                  //   }
                  // }
                }
                if (callback) { callback(result); }
                resolve(result);
              });
            } else {
              if (callback) { callback(result); }
              resolve(result);
            }
          });
        }
        if (_darwin) {
          exec('ioreg -c IOPlatformExpertDevice -d 2', function (error, stdout) {
            if (!error) {
              let lines = stdout.toString().replace(/[<>"]/g, '').split('\n');
              result.manufacturer = util.getValue(lines, 'manufacturer', '=', true);
              result.model = util.getValue(lines, 'model', '=', true);
              result.version = util.getValue(lines, 'version', '=', true);
              result.serial = util.getValue(lines, 'ioplatformserialnumber', '=', true);
              result.uuid = util.getValue(lines, 'ioplatformuuid', '=', true).toLowerCase();
              result.sku = util.getValue(lines, 'board-id', '=', true);
            }
            if (callback) { callback(result); }
            resolve(result);
          });
        }
        if (_sunos) {
          if (callback) { callback(result); }
          resolve(result);
        }
        if (_windows) {
          try {
            util.powerShell('Get-WmiObject Win32_ComputerSystemProduct | fl *').then((stdout, error) => {
              if (!error) {
                // let lines = stdout.split('\r\n').filter(line => line.trim() !== '').filter((line, idx) => idx > 0)[0].trim().split(/\s\s+/);
                let lines = stdout.split('\r\n');
                result.manufacturer = util.getValue(lines, 'vendor', ':');
                result.model = util.getValue(lines, 'name', ':');
                result.version = util.getValue(lines, 'version', ':');
                result.serial = util.getValue(lines, 'identifyingnumber', ':');
                result.uuid = util.getValue(lines, 'uuid', ':').toLowerCase();
                // detect virtual (1)
                const model = result.model.toLowerCase();
                if (model === 'virtualbox' || model === 'kvm' || model === 'virtual machine' || model === 'bochs' || model.startsWith('vmware') || model.startsWith('qemu')) {
                  result.virtual = true;
                  if (model.startsWith('virtualbox')) { result.virtualHost = 'VirtualBox'; }
                  if (model.startsWith('vmware')) { result.virtualHost = 'VMware'; }
                  if (model.startsWith('kvm')) { result.virtualHost = 'KVM'; }
                  if (model.startsWith('bochs')) { result.virtualHost = 'bochs'; }
                  if (model.startsWith('qemu')) { result.virtualHost = 'KVM'; }
                }
                const manufacturer = result.manufacturer.toLowerCase();
                if (manufacturer.startsWith('vmware') || manufacturer.startsWith('qemu') || manufacturer === 'xen') {
                  result.virtual = true;
                  if (manufacturer.startsWith('vmware')) { result.virtualHost = 'VMware'; }
                  if (manufacturer.startsWith('xen')) { result.virtualHost = 'Xen'; }
                  if (manufacturer.startsWith('qemu')) { result.virtualHost = 'KVM'; }
                }
                util.powerShell('Get-WmiObject MS_Systeminformation -Namespace "root/wmi" | fl *').then((stdout, error) => {
                  if (!error) {
                    let lines = stdout.split('\r\n');
                    result.sku = util.getValue(lines, 'systemsku', ':');
                  }
                  if (!result.virtual) {
                    util.powerShell('Get-WmiObject Win32_bios | select Version, SerialNumber, SMBIOSBIOSVersion').then((stdout, error) => {
                      if (!error) {
                        let lines = stdout.toString();
                        if (lines.indexOf('VRTUAL') >= 0 || lines.indexOf('A M I ') >= 0 || lines.indexOf('VirtualBox') >= 0 || lines.indexOf('VMWare') >= 0 || lines.indexOf('Xen') >= 0) {
                          result.virtual = true;
                          if (lines.indexOf('VirtualBox') >= 0 && !result.virtualHost) {
                            result.virtualHost = 'VirtualBox';
                          }
                          if (lines.indexOf('VMware') >= 0 && !result.virtualHost) {
                            result.virtualHost = 'VMware';
                          }
                          if (lines.indexOf('Xen') >= 0 && !result.virtualHost) {
                            result.virtualHost = 'Xen';
                          }
                          if (lines.indexOf('VRTUAL') >= 0 && !result.virtualHost) {
                            result.virtualHost = 'Hyper-V';
                          }
                          if (lines.indexOf('A M I') >= 0 && !result.virtualHost) {
                            result.virtualHost = 'Virtual PC';
                          }
                        }
                        if (callback) { callback(result); }
                        resolve(result);
                      } else {
                        if (callback) { callback(result); }
                        resolve(result);
                      }
                    });
                  } else {
                    if (callback) { callback(result); }
                    resolve(result);
                  }
                });
              } else {
                if (callback) { callback(result); }
                resolve(result);
              }
            });
          } catch (e) {
            if (callback) { callback(result); }
            resolve(result);
          }
        }
      });
    });
  }
  
  exports.system = system;
  
  function bios(callback) {
  
    return new Promise((resolve) => {
      process.nextTick(() => {
  
        let result = {
          vendor: '',
          version: '',
          releaseDate: '',
          revision: '',
        };
        let cmd = '';
        if (_linux || _freebsd || _openbsd || _netbsd) {
          if (process.arch === 'arm') {
            cmd = 'cat /proc/cpuinfo | grep Serial';
          } else {
            cmd = 'export LC_ALL=C; dmidecode -t bios 2>/dev/null; unset LC_ALL';
          }
          exec(cmd, function (error, stdout) {
            let lines = stdout.toString().split('\n');
            result.vendor = util.getValue(lines, 'Vendor');
            result.version = util.getValue(lines, 'Version');
            let datetime = util.getValue(lines, 'Release Date');
            result.releaseDate = util.parseDateTime(datetime).date;
            result.revision = util.getValue(lines, 'BIOS Revision');
            result.serial = util.getValue(lines, 'SerialNumber');
            let language = util.getValue(lines, 'Currently Installed Language').split('|')[0];
            if (language) {
              result.language = language;
            }
            if (lines.length && stdout.toString().indexOf('Characteristics:') >= 0) {
              const features = [];
              lines.forEach(line => {
                if (line.indexOf(' is supported') >= 0) {
                  const feature = line.split(' is supported')[0].trim();
                  features.push(feature);
                }
              });
              result.features = features;
            }
            // Non-Root values
            const cmd = `echo -n "bios_date: "; cat /sys/devices/virtual/dmi/id/bios_date 2>/dev/null; echo;
              echo -n "bios_vendor: "; cat /sys/devices/virtual/dmi/id/bios_vendor 2>/dev/null; echo;
              echo -n "bios_version: "; cat /sys/devices/virtual/dmi/id/bios_version 2>/dev/null; echo;`;
            try {
              lines = execSync(cmd).toString().split('\n');
              result.vendor = !result.vendor ? util.getValue(lines, 'bios_vendor') : result.vendor;
              result.version = !result.version ? util.getValue(lines, 'bios_version') : result.version;
              datetime = util.getValue(lines, 'bios_date');
              result.releaseDate = !result.releaseDate ? util.parseDateTime(datetime).date : result.releaseDate;
            } catch (e) {
              util.noop();
            }
            if (callback) { callback(result); }
            resolve(result);
          });
        }
        if (_darwin) {
          result.vendor = 'Apple Inc.';
          exec(
            'system_profiler SPHardwareDataType -json', function (error, stdout) {
              try {
                const hardwareData = JSON.parse(stdout.toString());
                if (hardwareData && hardwareData.SPHardwareDataType && hardwareData.SPHardwareDataType.length) {
                  let bootRomVersion = hardwareData.SPHardwareDataType[0].boot_rom_version;
                  bootRomVersion = bootRomVersion ? bootRomVersion.split('(')[0].trim() : null;
                  result.version = bootRomVersion;
                }
              } catch (e) {
                util.noop();
              }
              if (callback) { callback(result); }
              resolve(result);
            });
        }
        if (_sunos) {
          result.vendor = 'Sun Microsystems';
          if (callback) { callback(result); }
          resolve(result);
        }
        if (_windows) {
          try {
            util.powerShell('Get-WmiObject Win32_bios | fl *').then((stdout, error) => {
              if (!error) {
                let lines = stdout.toString().split('\r\n');
                const description = util.getValue(lines, 'description', ':');
                if (description.indexOf(' Version ') !== -1) {
                  // ... Phoenix ROM BIOS PLUS Version 1.10 A04
                  result.vendor = description.split(' Version ')[0].trim();
                  result.version = description.split(' Version ')[1].trim();
                } else if (description.indexOf(' Ver: ') !== -1) {
                  // ... BIOS Date: 06/27/16 17:50:16 Ver: 1.4.5
                  result.vendor = util.getValue(lines, 'manufacturer', ':');
                  result.version = description.split(' Ver: ')[1].trim();
                } else {
                  result.vendor = util.getValue(lines, 'manufacturer', ':');
                  result.version = util.getValue(lines, 'version', ':');
                }
                result.releaseDate = util.getValue(lines, 'releasedate', ':');
                if (result.releaseDate.length >= 10) {
                  result.releaseDate = result.releaseDate.substr(0, 4) + '-' + result.releaseDate.substr(4, 2) + '-' + result.releaseDate.substr(6, 2);
                }
                result.revision = util.getValue(lines, 'buildnumber', ':');
                result.serial = util.getValue(lines, 'serialnumber', ':');
              }
  
              if (callback) { callback(result); }
              resolve(result);
            });
          } catch (e) {
            if (callback) { callback(result); }
            resolve(result);
          }
        }
      });
    });
  }
  
  exports.bios = bios;
  
  function baseboard(callback) {
  
    return new Promise((resolve) => {
      process.nextTick(() => {
  
        let result = {
          manufacturer: '',
          model: '',
          version: '',
          serial: '-',
          assetTag: '-',
          memMax: null,
          memSlots: null
        };
        let cmd = '';
        if (_linux || _freebsd || _openbsd || _netbsd) {
          if (process.arch === 'arm') {
            cmd = 'cat /proc/cpuinfo | grep Serial';
            // 'BCM2709', 'BCM2835', 'BCM2708' -->
          } else {
            cmd = 'export LC_ALL=C; dmidecode -t 2 2>/dev/null; unset LC_ALL';
          }
          const workload = [];
          workload.push(execPromise(cmd));
          workload.push(execPromise('export LC_ALL=C; dmidecode -t memory 2>/dev/null'));
          util.promiseAll(
            workload
          ).then(data => {
            let lines = data.results[0] ? data.results[0].toString().split('\n') : [''];
            result.manufacturer = util.getValue(lines, 'Manufacturer');
            result.model = util.getValue(lines, 'Product Name');
            result.version = util.getValue(lines, 'Version');
            result.serial = util.getValue(lines, 'Serial Number');
            result.assetTag = util.getValue(lines, 'Asset Tag');
            // Non-Root values
            const cmd = `echo -n "board_asset_tag: "; cat /sys/devices/virtual/dmi/id/board_asset_tag 2>/dev/null; echo;
              echo -n "board_name: "; cat /sys/devices/virtual/dmi/id/board_name 2>/dev/null; echo;
              echo -n "board_serial: "; cat /sys/devices/virtual/dmi/id/board_serial 2>/dev/null; echo;
              echo -n "board_vendor: "; cat /sys/devices/virtual/dmi/id/board_vendor 2>/dev/null; echo;
              echo -n "board_version: "; cat /sys/devices/virtual/dmi/id/board_version 2>/dev/null; echo;`;
            try {
              lines = execSync(cmd).toString().split('\n');
              result.manufacturer = !result.manufacturer ? util.getValue(lines, 'board_vendor') : result.manufacturer;
              result.model = !result.model ? util.getValue(lines, 'board_name') : result.model;
              result.version = !result.version ? util.getValue(lines, 'board_version') : result.version;
              result.serial = !result.serial ? util.getValue(lines, 'board_serial') : result.serial;
              result.assetTag = !result.assetTag ? util.getValue(lines, 'board_asset_tag') : result.assetTag;
            } catch (e) {
              util.noop();
            }
            if (result.serial.toLowerCase().indexOf('o.e.m.') !== -1) { result.serial = '-'; }
            if (result.assetTag.toLowerCase().indexOf('o.e.m.') !== -1) { result.assetTag = '-'; }
  
            // mem
            lines = data.results[1] ? data.results[1].toString().split('\n') : [''];
            result.memMax = util.toInt(util.getValue(lines, 'Maximum Capacity')) * 1024 * 1024 * 1024 || null;
            result.memSlots = util.toInt(util.getValue(lines, 'Number Of Devices')) || null;
  
            // raspberry
            let linesRpi = '';
            try {
              linesRpi = fs.readFileSync('/proc/cpuinfo').toString().split('\n');
            } catch (e) {
              util.noop();
            }
            const hardware = util.getValue(linesRpi, 'hardware');
            if (hardware.startsWith('BCM')) {
              const rpi = util.decodePiCpuinfo(linesRpi);
              result.manufacturer = rpi.manufacturer;
              result.model = 'Raspberry Pi';
              result.serial = rpi.serial;
              result.version = rpi.type + ' - ' + rpi.revision;
              result.memMax = os.totalmem();
              result.memSlots = 0;
            }
  
            if (callback) { callback(result); }
            resolve(result);
          });
        }
        if (_darwin) {
          const workload = [];
          workload.push(execPromise('ioreg -c IOPlatformExpertDevice -d 2'));
          workload.push(execPromise('system_profiler SPMemoryDataType'));
          util.promiseAll(
            workload
          ).then(data => {
            let lines = data.results[0] ? data.results[0].toString().replace(/[<>"]/g, '').split('\n') : [''];
            result.manufacturer = util.getValue(lines, 'manufacturer', '=', true);
            result.model = util.getValue(lines, 'model', '=', true);
            result.version = util.getValue(lines, 'version', '=', true);
            result.serial = util.getValue(lines, 'ioplatformserialnumber', '=', true);
            result.assetTag = util.getValue(lines, 'board-id', '=', true);
  
            // mem
            let devices = data.results[1] ? data.results[1].toString().split('        BANK ') : [''];
            if (devices.length === 1) {
              devices = data.results[1] ? data.results[1].toString().split('        DIMM') : [''];
            }
            devices.shift();
            result.memSlots = devices.length;
  
            if (os.arch() === 'arm64') {
              result.memSlots = 0;
              result.memMax = os.totalmem();
            }
  
            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_baseboard | fl *'));
            workload.push(util.powerShell('Get-WmiObject Win32_physicalmemoryarray | select MaxCapacity, MemoryDevices | fl'));
            util.promiseAll(
              workload
            ).then(data => {
              let lines = data.results[0] ? data.results[0].toString().split('\r\n') : [''];
  
              result.manufacturer = util.getValue(lines, 'manufacturer', ':');
              result.model = util.getValue(lines, 'model', ':');
              if (!result.model) {
                result.model = util.getValue(lines, 'product', ':');
              }
              result.version = util.getValue(lines, 'version', ':');
              result.serial = util.getValue(lines, 'serialnumber', ':');
              result.assetTag = util.getValue(lines, 'partnumber', ':');
              if (!result.assetTag) {
                result.assetTag = util.getValue(lines, 'sku', ':');
              }
  
              // memphysical
              lines = data.results[1] ? data.results[1].toString().split('\r\n') : [''];
              result.memMax = util.toInt(util.getValue(lines, 'MaxCapacity', ':')) || null;
              result.memSlots = util.toInt(util.getValue(lines, 'MemoryDevices', ':')) || null;
  
              if (callback) { callback(result); }
              resolve(result);
            });
          } catch (e) {
            if (callback) { callback(result); }
            resolve(result);
          }
        }
      });
    });
  }
  
  exports.baseboard = baseboard;
  
  function chassis(callback) {
    const chassisTypes = ['Other',
      'Unknown',
      'Desktop',
      'Low Profile Desktop',
      'Pizza Box',
      'Mini Tower',
      'Tower',
      'Portable',
      'Laptop',
      'Notebook',
      'Hand Held',
      'Docking Station',
      'All in One',
      'Sub Notebook',
      'Space-Saving',
      'Lunch Box',
      'Main System Chassis',
      'Expansion Chassis',
      'SubChassis',
      'Bus Expansion Chassis',
      'Peripheral Chassis',
      'Storage Chassis',
      'Rack Mount Chassis',
      'Sealed-Case PC',
      'Multi-System Chassis',
      'Compact PCI',
      'Advanced TCA',
      'Blade',
      'Blade Enclosure',
      'Tablet',
      'Convertible',
      'Detachable',
      'IoT Gateway ',
      'Embedded PC',
      'Mini PC',
      'Stick PC',
    ];
  
    return new Promise((resolve) => {
      process.nextTick(() => {
  
        let result = {
          manufacturer: '',
          model: '',
          type: '',
          version: '',
          serial: '-',
          assetTag: '-',
          sku: '',
        };
        if (_linux || _freebsd || _openbsd || _netbsd) {
          const cmd = `echo -n "chassis_asset_tag: "; cat /sys/devices/virtual/dmi/id/chassis_asset_tag 2>/dev/null; echo;
              echo -n "chassis_serial: "; cat /sys/devices/virtual/dmi/id/chassis_serial 2>/dev/null; echo;
              echo -n "chassis_type: "; cat /sys/devices/virtual/dmi/id/chassis_type 2>/dev/null; echo;
              echo -n "chassis_vendor: "; cat /sys/devices/virtual/dmi/id/chassis_vendor 2>/dev/null; echo;
              echo -n "chassis_version: "; cat /sys/devices/virtual/dmi/id/chassis_version 2>/dev/null; echo;`;
          exec(cmd, function (error, stdout) {
            let lines = stdout.toString().split('\n');
            result.manufacturer = util.getValue(lines, 'chassis_vendor');
            const ctype = parseInt(util.getValue(lines, 'chassis_type').replace(/\D/g, ''));
            result.type = (ctype && !isNaN(ctype) && ctype < chassisTypes.length) ? chassisTypes[ctype - 1] : '';
            result.version = util.getValue(lines, 'chassis_version');
            result.serial = util.getValue(lines, 'chassis_serial');
            result.assetTag = util.getValue(lines, 'chassis_asset_tag');
            if (result.manufacturer.toLowerCase().indexOf('o.e.m.') !== -1) { result.manufacturer = '-'; }
            if (result.version.toLowerCase().indexOf('o.e.m.') !== -1) { result.version = '-'; }
            if (result.serial.toLowerCase().indexOf('o.e.m.') !== -1) { result.serial = '-'; }
            if (result.assetTag.toLowerCase().indexOf('o.e.m.') !== -1) { result.assetTag = '-'; }
  
            if (callback) { callback(result); }
            resolve(result);
          });
        }
        if (_darwin) {
          exec('ioreg -c IOPlatformExpertDevice -d 2', function (error, stdout) {
            if (!error) {
              let lines = stdout.toString().replace(/[<>"]/g, '').split('\n');
              result.manufacturer = util.getValue(lines, 'manufacturer', '=', true);
              result.model = util.getValue(lines, 'model', '=', true);
              result.version = util.getValue(lines, 'version', '=', true);
              result.serial = util.getValue(lines, 'ioplatformserialnumber', '=', true);
              result.assetTag = util.getValue(lines, 'board-id', '=', true);
            }
  
            if (callback) { callback(result); }
            resolve(result);
          });
        }
        if (_sunos) {
          if (callback) { callback(result); }
          resolve(result);
        }
        if (_windows) {
          try {
            util.powerShell('Get-WmiObject Win32_SystemEnclosure | fl *').then((stdout, error) => {
              if (!error) {
                let lines = stdout.toString().split('\r\n');
  
                result.manufacturer = util.getValue(lines, 'manufacturer', ':');
                result.model = util.getValue(lines, 'model', ':');
                const ctype = parseInt(util.getValue(lines, 'ChassisTypes', ':').replace(/\D/g, ''));
                result.type = (ctype && !isNaN(ctype) && ctype < chassisTypes.length) ? chassisTypes[ctype - 1] : '';
                result.version = util.getValue(lines, 'version', ':');
                result.serial = util.getValue(lines, 'serialnumber', ':');
                result.assetTag = util.getValue(lines, 'partnumber', ':');
                result.sku = util.getValue(lines, 'sku', ':');
                if (result.manufacturer.toLowerCase().indexOf('o.e.m.') !== -1) { result.manufacturer = '-'; }
                if (result.version.toLowerCase().indexOf('o.e.m.') !== -1) { result.version = '-'; }
                if (result.serial.toLowerCase().indexOf('o.e.m.') !== -1) { result.serial = '-'; }
                if (result.assetTag.toLowerCase().indexOf('o.e.m.') !== -1) { result.assetTag = '-'; }
              }
  
              if (callback) { callback(result); }
              resolve(result);
            });
          } catch (e) {
            if (callback) { callback(result); }
            resolve(result);
          }
        }
      });
    });
  }
  
  exports.chassis = chassis;
  
  