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feat: dukung penjualan produk per timbangan

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Produk kini punya cara jual `unit` (cacah) atau `weight` (timbangan),
mengikuti kontrak backend di docs/integration-weight-based-products.md.

- tipe SellBy, domain/infrastructure unit baru, dan endpoint /api/v1/units
- dialog input berat saat produk timbangan ditambahkan ke keranjang
- tiap penimbangan jadi baris keranjang sendiri; total baris dihitung
  berat x harga satuan, sedangkan produk cacah tetap digabung
- request ke backend mengirim quantity 1 dan membawa berat
- migrasi DB v3: kolom sell_by, unit_id, unit_name, unit_abbreviation
  di tabel products supaya satuan tetap tampil saat offline
- tampilan keranjang, struk, split bill, void, dan refund memakai berat
- test/weight_based_products_test.dart menutup perilaku di atas (9 test)

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
efrilm
2026-09-06 23:03:31 +07:00
co-authored by Claude Opus 5
parent 9777f63426
commit 1505a83dd3
72 changed files with 5388 additions and 584 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/presentation/components/print/print_ui.dart
+7 -3
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@@ -77,6 +77,7 @@ class PrintUi {
bytes += builder.orderItem(
productName: item.productName,
quantity: item.quantity,
quantityLabel: item.isWeighted ? item.quantityLabel : null,
unitPrice: item.unitPrice.currencyFormatRpV2,
totalPrice: item.totalPrice.currencyFormatRpV2,
variantName: item.productVariantName,
@@ -140,7 +141,7 @@ class PrintUi {
// Items — qty NAMA (uppercase), variant indent
for (final item in order.orderItems.where((e) => e.printToChecker)) {
final name = item.productName.toUpperCase();
bytes += builder.itemText('${item.quantity} $name');
bytes += builder.itemText('${item.quantityLabel} $name');
if (item.productVariantName.isNotEmpty) {
bytes += builder.itemText(' ${item.productVariantName.toUpperCase()}', bold: false);
}
@@ -196,7 +197,7 @@ class PrintUi {
// Single item
final name = item.productName.toUpperCase();
bytes += builder.itemText('${item.quantity} $name');
bytes += builder.itemText('${item.quantityLabel} $name');
if (item.productVariantName.isNotEmpty) {
bytes += builder.itemText(' ${item.productVariantName.toUpperCase()}', bold: false);
}
@@ -252,7 +253,7 @@ class PrintUi {
// Single item
final name = item.productName.toUpperCase();
bytes += builder.itemText('${item.quantity} $name');
bytes += builder.itemText('${item.quantityLabel} $name');
if (item.productVariantName.isNotEmpty) {
bytes += builder.itemText(' ${item.productVariantName.toUpperCase()}', bold: false);
}
@@ -359,6 +360,7 @@ class PrintUi {
bytes += builder.orderItem(
productName: item.productName,
quantity: item.quantity,
quantityLabel: item.isWeighted ? item.quantityLabel : null,
unitPrice: item.unitPrice.currencyFormatRpV2,
totalPrice: item.totalPrice.currencyFormatRpV2,
variantName: item.productVariantName,
@@ -439,6 +441,7 @@ class PrintUi {
bytes += builder.orderItem(
productName: item.productName,
quantity: item.quantity,
quantityLabel: item.isWeighted ? item.quantityLabel : null,
unitPrice: item.unitPrice.currencyFormatRpV2,
totalPrice: item.totalPrice.currencyFormatRpV2,
variantName: item.productVariantName,
@@ -530,6 +533,7 @@ class PrintUi {
bytes += builder.orderItem(
productName: item.productName,
quantity: item.quantity,
quantityLabel: item.isWeighted ? item.quantityLabel : null,
unitPrice: item.unitPrice.currencyFormatRpV2,
totalPrice: item.totalPrice.currencyFormatRpV2,
variantName: item.productVariantName,