Added Repository

src/PrinterRepository.mts

@@ -0,0 +1,46 @@
+import { Printer } from './Printer.mjs'
+import fs from 'fs'
+
+export class PrinterRepository {
+  constructor() {
+    if (PrinterRepository.instance) return PrinterRepository.instance
+
+    this.loadFromJSON()
+    PrinterRepository.instance = this
+  }
+
+  private printers: Printer[] = []
+  static instance: PrinterRepository
+
+  loadFromJSON() {
+    const json = JSON.parse(fs.readFileSync('./data/printers.json', 'utf8'))
+    this.printers = json.map(
+      ({ name, ip, model }: Printer) => new Printer(name, ip, model)
+    )
+  }
+
+  saveToJSON() {
+    const json = JSON.stringify(this.printers)
+    fs.writeFileSync('./data/printers.json', json, 'utf8')
+  }
+
+  addPrinter(printer) {
+    this.printers.push(printer)
+    this.saveToJSON()
+  }
+
+  removePrinter(printerName) {
+    this.printers = this.printers.filter(
+      printer => printer.name !== printerName
+    )
+    this.saveToJSON()
+  }
+
+  getPrinter(printerName) {
+    return this.printers.find(printer => printer.name === printerName)
+  }
+
+  getAllPrinters() {
+    return this.printers
+  }
+}

src/index.ts

@@ -13,7 +13,7 @@ const printers: Printer[] = printersDB.map(
   printer => new Printer(printer.name, printer.ip, printer.model)
 )
 
-app.get('/', async (req, res) => {
+app.get('/api/printer', async (req, res) => {
   const printersInfo: PrinterInfo[] = await Promise.all(
     printers.map(printer => printer.getPrinterInfo())
   )
@@ -21,7 +21,7 @@ app.get('/', async (req, res) => {
   res.send(printersInfo)
 })
 
-app.get('/:printerName', async (req, res) => {
+app.get('/api/printer/:printerName', async (req, res) => {
   const printerName = req.params.printerName
   const printer = printers.find(printer => printer.name === printerName)