Add offline barber POS Electron app #2
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| ipcMain.handle("pos/createSale", (_event, payload) => { | ||
| const { items, discount, taxRate, paymentMethod, paidAmount, customerId, userId } = payload; | ||
| const subtotal = items.reduce((acc, item) => acc + item.price * item.quantity, 0); | ||
| const discountValue = discount || 0; | ||
| const taxValue = (subtotal - discountValue) * taxRate; | ||
| const total = subtotal - discountValue + taxValue; | ||
| const changeAmount = paidAmount - total; | ||
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| const insertSale = db.prepare( | ||
| `INSERT INTO sales (customerId, total, discount, tax, paymentMethod, paidAmount, changeAmount, userId) | ||
| VALUES (?, ?, ?, ?, ?, ?, ?, ?)` | ||
| ); | ||
| const saleId = insertSale.run(customerId || null, total, discountValue, taxValue, paymentMethod, paidAmount, changeAmount, userId).lastInsertRowid; | ||
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The sale header is inserted before the transaction that writes sale_items and updates stock. If any item insert or stock update fails (e.g., due to an invalid product id or a constraint error), the transaction rolls back only the item operations while the already-inserted sale row remains committed. This leaves a sale record without line items and without stock adjustments, which will corrupt totals and reports. Consider moving the INSERT INTO sales into the same transaction as the item/stock updates so the entire sale is atomic.
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Summary
pos-appworkspace containing an offline barber POS built with React, TypeScript, Tailwind CSS, and ElectronTesting
https://chatgpt.com/codex/tasks/task_b_68fc5a41bae08320a28cbe6f1a84ffd7