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Migrated README.md images to .docs folder. Moved print logic to own m…
…odule. Implemented ESC/POS printer support. Added logo_grayscale_dark.png. Replaced PDF logo. Implemented size.js util for dynamic PDF page length. Updated README.md. Updated auth output log with type. Updated print output log with printer ip
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,236 @@ | ||
| /** | ||
| * Import base packages | ||
| */ | ||
| const PDFDocument = require('pdfkit'); | ||
| const ThermalPrinter = require('node-thermal-printer').printer; | ||
| const PrinterTypes = require('node-thermal-printer').types; | ||
|
|
||
| /** | ||
| * Import own modules | ||
| */ | ||
| const log = require('./log'); | ||
| const config = require('./config'); | ||
| const time = require('../utils/time'); | ||
| const bytes = require('../utils/bytes'); | ||
| const size = require('../utils/size'); | ||
|
|
||
| /** | ||
| * Define global variables | ||
| */ | ||
| const printerIp = config('printer_ip') || process.env.PRINTER_IP || '192.168.1.1'; | ||
|
|
||
| /** | ||
| * Exports the printer module | ||
| */ | ||
| module.exports = { | ||
| /** | ||
| * Generates a voucher as a PDF | ||
| * | ||
| * @param voucher | ||
| * @return {Promise<unknown>} | ||
| */ | ||
| pdf: (voucher) => { | ||
| return new Promise((resolve) => { | ||
| const doc = new PDFDocument({ | ||
| bufferPages: true, | ||
| size: [226.77165354330398, size(voucher)], | ||
| margins : { | ||
| top: 20, | ||
| bottom: 20, | ||
| left: 20, | ||
| right: 20 | ||
| } | ||
| }); | ||
|
|
||
| const buffers = []; | ||
| doc.on('data', buffers.push.bind(buffers)); | ||
| doc.on('end', () => { | ||
| log.info('[Printer] PDF generation completed!'); | ||
| resolve(buffers); | ||
| }); | ||
|
|
||
| doc.image('public/images/logo_grayscale_dark.png', 75, 15, {fit: [75, 75], align: 'center', valign: 'center'}); | ||
|
|
||
| doc.moveDown(6); | ||
|
|
||
| doc.font('Helvetica-Bold') | ||
| .fontSize(20) | ||
| .text(`WiFi Voucher Code`, { | ||
| align: 'center' | ||
| }); | ||
| doc.font('Helvetica-Bold') | ||
| .fontSize(15) | ||
| .text(`${voucher.code.slice(0, 5)}-${voucher.code.slice(5)}`, { | ||
| align: 'center' | ||
| }); | ||
|
|
||
| doc.moveDown(2); | ||
|
|
||
| doc.font('Helvetica-Bold') | ||
| .fontSize(12) | ||
| .text(`Voucher Details`); | ||
|
|
||
| doc.font('Helvetica-Bold') | ||
| .fontSize(10) | ||
| .text(`--------------------------------------------------------`); | ||
|
|
||
| doc.font('Helvetica-Bold') | ||
| .fontSize(10) | ||
| .text(`Type: `, { | ||
| continued: true | ||
| }); | ||
| doc.font('Helvetica') | ||
| .fontSize(10) | ||
| .text(voucher.quota === 0 ? 'Multi-use' : 'Single-use'); | ||
|
|
||
| doc.font('Helvetica-Bold') | ||
| .fontSize(10) | ||
| .text(`Duration: `, { | ||
| continued: true | ||
| }); | ||
| doc.font('Helvetica') | ||
| .fontSize(10) | ||
| .text(time(voucher.duration)); | ||
|
|
||
| if(voucher.qos_usage_quota) { | ||
| doc.font('Helvetica-Bold') | ||
| .fontSize(10) | ||
| .text(`Data Limit: `, { | ||
| continued: true | ||
| }); | ||
| doc.font('Helvetica') | ||
| .fontSize(10) | ||
| .text(`${bytes(voucher.qos_usage_quota, 2)}`); | ||
| } | ||
|
|
||
| if(voucher.qos_rate_max_down) { | ||
| doc.font('Helvetica-Bold') | ||
| .fontSize(10) | ||
| .text(`Download Limit: `, { | ||
| continued: true | ||
| }); | ||
| doc.font('Helvetica') | ||
| .fontSize(10) | ||
| .text(`${bytes(voucher.qos_rate_max_down, 1, true)}`); | ||
| } | ||
|
|
||
| if(voucher.qos_rate_max_up) { | ||
| doc.font('Helvetica-Bold') | ||
| .fontSize(10) | ||
| .text(`Upload Limit: `, { | ||
| continued: true | ||
| }); | ||
| doc.font('Helvetica') | ||
| .fontSize(10) | ||
| .text(`${bytes(voucher.qos_rate_max_up, 1, true)}`); | ||
| } | ||
|
|
||
| doc.end(); | ||
| }); | ||
| }, | ||
|
|
||
| /** | ||
| * Sends a print job to an ESC/POS compatible network printer | ||
| * | ||
| * @param voucher | ||
| * @return {Promise<unknown>} | ||
| */ | ||
| escpos: (voucher) => { | ||
| return new Promise(async (resolve, reject) => { | ||
| const printer = new ThermalPrinter({ | ||
| type: PrinterTypes.EPSON, | ||
| interface: `tcp://${printerIp}` | ||
| }); | ||
|
|
||
| const status = await printer.isPrinterConnected(); | ||
|
|
||
| if(!status) { | ||
| reject('Unable to connect to printer!'); | ||
| return; | ||
| } | ||
|
|
||
| printer.setTypeFontB(); | ||
| printer.alignCenter(); | ||
| printer.newLine(); | ||
| await printer.printImage(`${process.cwd()}/public/images/logo_grayscale_dark.png`); | ||
| printer.newLine(); | ||
|
|
||
| printer.alignCenter(); | ||
| printer.newLine(); | ||
| printer.setTextSize(2, 2); | ||
| printer.println('WiFi Voucher Code'); | ||
| printer.setTextSize(1, 1); | ||
| printer.println(`${voucher.code.slice(0, 5)}-${voucher.code.slice(5)}`); | ||
| printer.setTextNormal(); | ||
|
|
||
| printer.newLine(); | ||
| printer.newLine(); | ||
| printer.newLine(); | ||
| printer.newLine(); | ||
| printer.newLine(); | ||
|
|
||
| printer.alignLeft(); | ||
| printer.setTypeFontB(); | ||
| printer.setTextSize(1, 1); | ||
| printer.println('Voucher Details'); | ||
| printer.setTextNormal(); | ||
| printer.drawLine(); | ||
|
|
||
| printer.setTextDoubleHeight(); | ||
| printer.invert(true); | ||
| printer.print('Type:'); | ||
| printer.invert(false); | ||
| printer.print(voucher.quota === 0 ? ' Multi-use' : ' Single-use'); | ||
| printer.newLine(); | ||
|
|
||
| printer.setTextDoubleHeight(); | ||
| printer.invert(true); | ||
| printer.print('Duration:'); | ||
| printer.invert(false); | ||
| printer.print(` ${time(voucher.duration)}`); | ||
| printer.newLine(); | ||
|
|
||
| if(voucher.qos_usage_quota) { | ||
| printer.setTextDoubleHeight(); | ||
| printer.invert(true); | ||
| printer.print('Data Limit:'); | ||
| printer.invert(false); | ||
| printer.print(` ${bytes(voucher.qos_usage_quota, 2)}`); | ||
| printer.newLine(); | ||
| } | ||
|
|
||
| if(voucher.qos_rate_max_down) { | ||
| printer.setTextDoubleHeight(); | ||
| printer.invert(true); | ||
| printer.print('Download Limit:'); | ||
| printer.invert(false); | ||
| printer.print(` ${bytes(voucher.qos_rate_max_down, 1, true)}`); | ||
| printer.newLine(); | ||
| } | ||
|
|
||
| if(voucher.qos_rate_max_up) { | ||
| printer.setTextDoubleHeight(); | ||
| printer.invert(true); | ||
| printer.print('Upload Limit:'); | ||
| printer.invert(false); | ||
| printer.print(` ${bytes(voucher.qos_rate_max_up, 1, true)}`); | ||
| printer.newLine(); | ||
| } | ||
|
|
||
| printer.newLine(); | ||
| printer.newLine(); | ||
| printer.newLine(); | ||
| printer.newLine(); | ||
| printer.cut(); | ||
| printer.beep(2, 2); | ||
|
|
||
| try { | ||
| await printer.execute(); | ||
| log.info('[Printer] Data send to printer!'); | ||
| resolve(true); | ||
| } catch (error) { | ||
| reject(error); | ||
| } | ||
| }); | ||
| } | ||
| }; |
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