Updated escpos_example.jpg screenshot. Implemented qr.js buffer toggl…

…e, Implemented ESC/POS Scan to Connect. Optimized ESC/POS layout. Implemented qr.js error logging
glenndehaan · Sep 21, 2024 · da15cf9 · da15cf9
1 parent 706e4b9
commit da15cf9
Show file tree

Hide file tree

Showing 3 changed files with 40 additions and 7 deletions.
diff --git a/.docs/images/escpos_example.jpg b/.docs/images/escpos_example.jpg
diff --git a/modules/print.js b/modules/print.js
@@ -186,9 +186,24 @@ module.exports = {
             printer.println(`${voucher.code.slice(0, 5)}-${voucher.code.slice(5)}`);
             printer.setTextNormal();
 
-            printer.newLine();
-            printer.newLine();
-            printer.newLine();
+            if(variables.unifiSsid) {
+                printer.newLine();
+                printer.newLine();
+                printer.newLine();
+
+                printer.alignLeft();
+                printer.print('Connect to: ');
+                printer.setTypeFontB();
+                printer.setTextSize(1, 1);
+                printer.print(variables.unifiSsid);
+                printer.setTextNormal();
+                printer.print(' or,');
+                printer.newLine();
+                printer.println('Scan to connect:');
+                printer.alignCenter();
+                await printer.printImageBuffer(await qr(true));
+            }
+
             printer.newLine();
             printer.newLine();
 

diff --git a/modules/qr.js b/modules/qr.js
@@ -6,17 +6,35 @@ const QRCode = require('qrcode');
 /**
  * Import own modules
  */
+const log = require('./log');
 const variables = require('./variables');
 
 /**
  * Generates a QR code from the UniFi SSID (Scan to Connect)
  *
+ * @param buffer
  * @return {Promise<unknown>}
  */
-module.exports = () => {
+module.exports = (buffer = false) => {
     return new Promise((resolve) => {
-        QRCode.toDataURL(`WIFI:S:${variables.unifiSsid};T:;P:;;`, (err, url) => {
-            resolve(url);
-        });
+        if(!buffer) {
+            QRCode.toDataURL(`WIFI:S:${variables.unifiSsid};T:;P:;;`, { version: 4, errorCorrectionLevel: 'Q' }, (err, url) => {
+                if(err) {
+                    log.error(`[Qr] Error while generating code!`);
+                    log.error(err);
+                }
+
+                resolve(url);
+            });
+        } else {
+            QRCode.toBuffer(`WIFI:S:${variables.unifiSsid};T:;P:;;`, { version: 4, errorCorrectionLevel: 'Q' }, (err, buffer) => {
+                if(err) {
+                    log.error(`[Qr] Error while generating code!`);
+                    log.error(err);
+                }
+
+                resolve(buffer);
+            });
+        }
     });
 };