feat: implement logic to capture and print sub-line notes on POS thermal receipts

static/src/js/escpos_generator.js

@@ -305,6 +305,50 @@ export class EscPosGenerator {
                                 : subName;
                             cmds.push(...this.addLine(prefix + displaySub, { bold: true }));
                         }
+
+                        // Print subline notes if any!
+                        if (sub.note) {
+                            const rawSubNote = String(sub.note);
+                            const rawSubLines = rawSubNote.split('\n');
+                            const wrappedSubLines = [];
+                            
+                            // Prefix will be "    * " (6 chars width)
+                            const prefixText = '    * ';
+                            const maxSubNoteWidth = W - prefixText.length;
+
+                            rawSubLines.forEach(rawLine => {
+                                const words = rawLine.split(/\s+/);
+                                let currentLine = '';
+                                for (const word of words) {
+                                    if (!word) continue;
+                                    if ((currentLine + (currentLine ? ' ' : '') + word).length <= maxSubNoteWidth) {
+                                        currentLine += (currentLine ? ' ' : '') + word;
+                                    } else {
+                                        if (currentLine) {
+                                            wrappedSubLines.push(currentLine);
+                                        }
+                                        let tempWord = word;
+                                        while (tempWord.length > maxSubNoteWidth) {
+                                            wrappedSubLines.push(tempWord.substring(0, maxSubNoteWidth));
+                                            tempWord = tempWord.substring(maxSubNoteWidth);
+                                        }
+                                        currentLine = tempWord;
+                                    }
+                                }
+                                if (currentLine) {
+                                    wrappedSubLines.push(currentLine);
+                                }
+                            });
+
+                            wrappedSubLines.forEach((l, i) => {
+                                const prefix = i === 0 ? prefixText : '      ';
+                                if (receiptData.isBasicReceipt) {
+                                    cmds.push(...this.addLine(prefix + l, { bold: true, height: 2 }));
+                                } else {
+                                    cmds.push(...this.addLine(prefix + l, { bold: true }));
+                                }
+                            });
+                        }
                     });
                 }
 

static/src/js/pos_receipt_printer.js

@@ -880,9 +880,25 @@ patch(PosPrinterService.prototype, {
                                (line.id && parent.id && parent.id === line.id);
                     })
                     .map(subLine => {
+                        // Construct combined sub-line note
+                        let subNote = '';
+                        const subNoteParts = [];
+                        const subCustomerNote = subLine.customer_note || subLine.customerNote || '';
+                        if (subCustomerNote) {
+                            subNoteParts.push(subCustomerNote);
+                        }
+                        if (subLine.note) {
+                            const subInternalNote = pos?.getStrNotes ? pos.getStrNotes(subLine.note) : (typeof subLine.note === 'string' ? subLine.note : '');
+                            if (subInternalNote) {
+                                subNoteParts.push(subInternalNote);
+                            }
+                        }
+                        subNote = subNoteParts.join(' | ');
+
                         return {
                             productName: subLine.full_product_name || subLine.product_id?.display_name || '',
                             quantity: subLine.qty || 0,
+                            note: subNote,
                         };
                     })
                     .filter(sub => sub.productName);
@@ -1126,6 +1142,7 @@ patch(PosPrinterService.prototype, {
                 lastParentLine.comboLines.push({
                     productName,
                     quantity: qty,
+                    note: note,
                 });
                 console.log(`[BluetoothPrint] Added combo subline to parent:`, productName);
             } else {