refactor: improve printer cut reliability, add buffer flushing, and enhance receipt metadata parsing for Odoo 19

static/src/js/escpos_generator.js

@@ -69,6 +69,7 @@ export class EscPosGenerator {
         const cmds = [];
         for (let i = 0; i < lines; i++) cmds.push(...FEED_LINE);
         cmds.push(...CUT_PAPER);
+        cmds.push(...INIT); // Force printer buffer flush and reset
         return new Uint8Array(cmds);
     }
 
@@ -337,8 +338,8 @@ export class EscPosGenerator {
             }
         }
 
-        // Feed and cut (set feed to 4 lines to ensure the footer clears the cutter blade before cutting)
+        // Feed and cut (set feed to 6 lines to ensure the footer clears the tear bar)
-        cmds.push(...this.feedAndCut(4));
+        cmds.push(...this.feedAndCut(6));
 
         return new Uint8Array(cmds);
     }

static/src/js/escpos_graphics.js

@@ -55,7 +55,7 @@ export class EscPosGraphics {
         commands.push(...rasterCommands);
         
         // Feed paper and cut
-        commands.push(...this._feedAndCut(4));
+        commands.push(...this._feedAndCut(6));
         
         const result = new Uint8Array(commands);
         
@@ -221,6 +221,9 @@ export class EscPosGraphics {
         // m = 0 (full cut), 1 (partial cut)
         commands.push(GS, 0x56, 0x00);
         
+        // Initialize printer to force buffer flush and reset
+        commands.push(ESC, 0x40);
+        
         return commands;
     }
 

static/src/js/pos_receipt_printer.js

@@ -682,19 +682,31 @@ patch(PosPrinterService.prototype, {
         } catch (_) { dateStr = new Date().toLocaleString(); }
 
         // Table name — from pos_restaurant.ReceiptHeader patch
-        // order.table_id or order.self_ordering_table_id → table.table_number
         let tableName = '';
-        const table = order.table_id || order.self_ordering_table_id || null;
+        let table = order.table_id || order.self_ordering_table_id || null;
         if (table) {
-            if (order.customer_count) {
+            if (typeof table === 'number' || typeof table === 'string') {
-                tableName = `Table ${table.table_number}, Guests: ${order.customer_count}`;
+                const tableId = parseInt(table);
-            } else {
+                if (pos && pos.models && pos.models['restaurant.table']) {
-                tableName = `Table ${table.table_number}`;
+                    table = pos.models['restaurant.table'].get(tableId) || { table_number: tableId };
+                } else if (pos && pos.tables) {
+                    table = pos.tables.find(t => t.id === tableId) || { table_number: tableId };
+                } else {
+                    table = { table_number: tableId };
+                }
+            }
+            const number = table.table_number || table.name || '';
+            if (number) {
+                if (order.customer_count) {
+                    tableName = `Table ${number}, Guests: ${order.customer_count}`;
+                } else {
+                    tableName = `Table ${number}`;
+                }
             }
         }
 
         const orderData = {
-            orderName: order.pos_reference || order.name || '',
+            orderName: (typeof order.getName === 'function' ? order.getName() : '') || order.pos_reference || order.name || '',
             date: dateStr || new Date().toLocaleString(),
             cashier: formatFirstLastName((typeof order.getCashierName === 'function' ? order.getCashierName() : '') || ''),
             customer: order.partner_id?.name || null,
@@ -834,13 +846,52 @@ patch(PosPrinterService.prototype, {
             taxId: getText('.pos-receipt-tax-id') || ''
         };
         
+        // Helper to find text by pattern in any descendant element, prioritizing the most specific (deepest/shortest) match
+        const findTextByPattern = (pattern) => {
+            const walker = document.createTreeWalker(el, NodeFilter.SHOW_ELEMENT, null, false);
+            let bestText = '';
+            
+            while (walker.nextNode()) {
+                const node = walker.currentNode;
+                // Exclude script, style, and large container elements
+                if (['SCRIPT', 'STYLE', 'UL', 'OL', 'TBODY', 'TABLE', 'HTML', 'BODY', 'DIV.pos-receipt'].includes(node.tagName)) {
+                    continue;
+                }
+                const text = node.textContent.trim();
+                if (pattern.test(text)) {
+                    // We want the most specific leaf node, which has the shortest text containing the pattern
+                    if (!bestText || text.length < bestText.length) {
+                        bestText = text;
+                    }
+                }
+            }
+            return bestText;
+        };
+
         // Parse order info
         // Odoo 19: order reference is in .pos-receipt-vat, date in #order-date, cashier in .cashier
+        let orderName = getText('.pos-receipt-vat') || getText('.pos-receipt-order-name') || getText('.order-name') || getText('.pos-receipt-order-data') || '';
+        if (!orderName) {
+            const possibleOrderText = findTextByPattern(/\b(Order|Ticket|Ref|Invoice)\b/i);
+            if (possibleOrderText) {
+                orderName = possibleOrderText.split('\n')[0].trim();
+            }
+        }
+
+        let tableName = getText('.pos-receipt-table') || getText('.table-name') || '';
+        if (!tableName) {
+            const possibleTableText = findTextByPattern(/\bTable\s+\d+/i) || findTextByPattern(/\bTable\b/i);
+            if (possibleTableText) {
+                tableName = possibleTableText.split('\n')[0].trim();
+            }
+        }
+
         const orderData = {
-            orderName: getText('.pos-receipt-vat') || getText('.pos-receipt-order-name') || getText('.order-name') || getText('.pos-receipt-order-data') || '',
+            orderName: orderName,
             date: getText('#order-date') || getText('.pos-receipt-date') || new Date().toLocaleString(),
             cashier: formatFirstLastName(getText('.cashier') || getText('.pos-receipt-cashier') || ''),
-            customer: getText('.pos-receipt-customer') || getText('.customer') || null
+            customer: getText('.pos-receipt-customer') || getText('.customer') || null,
+            tableName: tableName
         };
         
         // Parse order lines