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support multi platform receipt print
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| import { exec } from 'child_process'; | ||
| import fs from 'fs'; | ||
| import path from 'path'; | ||
| import { Logger, windowsPrinterStatus } from '.'; | ||
|
|
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| const logger = new Logger('receipt'); | ||
|
|
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| export async function checkReceiptPrinter(printers: object[]) { | ||
| if (process.platform === 'linux') { | ||
| const usbDevices = fs.readdirSync('/dev/usb'); | ||
| for (const f of usbDevices) { | ||
| if (f.startsWith('lp')) { | ||
| const lpid = fs.readFileSync(`/sys/class/usbmisc/${f}/device/ieee1284_id`, 'utf8').trim(); | ||
| logger.info(`USB Printer ${f} found: ${lpid}`); | ||
| logger.info(`If you want to use this printer for balloon print, please set balloon: /dev/usb/${f} in config.yaml.`); | ||
| } | ||
| } | ||
| if (!usbDevices.length) logger.info('If you want to use balloon client, please connect your receipt printer first.'); | ||
| } else if (process.platform === 'win32') { | ||
| const shared = printers.filter((p: any) => p.DeviceID).filter((p: any) => p.ShareName).map((p: any) => ({ | ||
| printer: `\\\\${p.SystemName}\\${p.ShareName}`, | ||
| device: p.DeviceID, | ||
| description: p.Caption, | ||
| status: windowsPrinterStatus[p.PrinterStatus] ? windowsPrinterStatus[p.PrinterStatus] : 'unknown', | ||
| })); | ||
| for (const printer of shared) { | ||
| logger.info(`Receipt Shared Printer ${printer.printer}(${printer.device})) found: ${printer.description}`); | ||
| logger.info(`If you want to use this printer for balloon print, please set balloon: ${printer.printer} in config.yaml.`); | ||
| } | ||
| if (!shared.length) logger.info('If you want to use balloon client, please share your receipt printer on settings first.'); | ||
| } else if (process.platform === 'darwin') { | ||
| logger.info('If you want to use balloon client, please set balloon: "{printer name}" in config.yaml.'); | ||
| } else logger.info('If you want to use balloon client, please run this on Linux/Windows/MacOS'); | ||
| } | ||
|
|
||
| export async function checkReceiptStatus(printer) { | ||
| if (process.platform !== 'linux') { | ||
| printer = { printer: printer.printer }; | ||
| return; | ||
| } | ||
| const lp = printer.printer.split('/').pop(); | ||
| const oldPrinter = printer; | ||
| printer = { | ||
| printer: printer.printer, | ||
| info: fs.readFileSync(`/sys/class/usbmisc/${lp}/device/ieee1284_id`, 'utf8').trim(), | ||
| }; | ||
| if (!oldPrinter || oldPrinter.info === printer.info) return; | ||
| logger.info('Printer changed:', printer.printer, printer.info); | ||
| const usbDevices = fs.readdirSync('/dev/usb'); | ||
| for (const f of usbDevices) { | ||
| if (f.startsWith('lp')) { | ||
| const lpid = fs.readFileSync(`/sys/class/usbmisc/${f}/device/ieee1284_id`, 'utf8').trim(); | ||
| if (lpid === oldPrinter.info) { | ||
| logger.info('Printer found:', f, ':', lpid); | ||
| oldPrinter.printer = `/dev/usb/${f}`; | ||
| printer = oldPrinter; | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| if (oldPrinter.info !== printer.info) throw Error('Printer not found, please check the printer connection.'); | ||
| } | ||
|
|
||
| export async function receiptPrint(text, printer) { | ||
| fs.writeFileSync(path.resolve(process.cwd(), 'data', 'balloon.txt'), text); | ||
| if (process.platform === 'win32') { | ||
| exec(`COPY /B "${path.resolve(process.cwd(), 'data', 'balloon.txt')}" "${printer.printer}"`, (err, stdout, stderr) => { | ||
| if (err) logger.error(err); | ||
| if (stdout) logger.info(stdout); | ||
| if (stderr) logger.error(stderr); | ||
| }); | ||
| } else if (process.platform === 'darwin') exec(`lpr -P ${printer.printer} -o raw ${path.resolve(process.cwd(), 'data', 'balloon.txt')}`); | ||
| else fs.writeFileSync(path.resolve(printer.printer), text); | ||
| } |