优化

src/modules/finance/api/adapters.ts

@@ -0,0 +1,122 @@
+import type {
+  FinanceBillDetail,
+  FinanceBillLine,
+  FinanceBillStatus,
+  FinanceBillSummary,
+  FinanceReceiptRecord,
+} from '../contracts'
+
+type WireScalar = string | number
+
+export interface FinanceBillWire {
+  id: WireScalar
+  bill_no: string
+  customer_name_snapshot: string
+  currency_code: string
+  bill_date: string | null
+  due_date: string | null
+  status: FinanceBillStatus
+  total_amount: WireScalar
+  received_amount: WireScalar
+  outstanding_amount: WireScalar
+  lines?: FinanceBillLineWire[]
+}
+
+export interface FinanceBillLineWire {
+  id: WireScalar
+  source_no: string | null
+  order_id: WireScalar | null
+  fee_item_name: string
+  amount: WireScalar
+  currency_code: string
+}
+
+export interface FinanceReceiptWire {
+  id: WireScalar
+  receipt_no: string
+  received_amount: WireScalar
+  received_at: string
+  payment_method: string | null
+  voucher_no: string | null
+  status: string
+  bill_id: WireScalar | null
+  applied_amount: WireScalar | null
+}
+
+function text(value: WireScalar) {
+  return String(value)
+}
+
+function mapBillSummary(bill: FinanceBillWire): FinanceBillSummary {
+  return {
+    id: text(bill.id),
+    billNo: bill.bill_no,
+    customerName: bill.customer_name_snapshot,
+    currencyCode: 'CNY',
+    totalAmount: text(bill.total_amount),
+    receivedAmount: text(bill.received_amount),
+    outstandingAmount: text(bill.outstanding_amount),
+    issueDate: bill.bill_date,
+    dueDate: bill.due_date,
+    status: bill.status,
+  }
+}
+
+function mapBillLine(line: FinanceBillLineWire): FinanceBillLine {
+  return {
+    id: text(line.id),
+    orderId: line.order_id == null ? null : text(line.order_id),
+    feeNo: line.source_no,
+    feeName: line.fee_item_name,
+    amount: text(line.amount),
+    currencyCode: 'CNY',
+  }
+}
+
+export function mapFinanceBills(bills: FinanceBillWire[]) {
+  return bills.map(mapBillSummary)
+}
+
+export function mapFinanceBillDetail(bill: FinanceBillWire): FinanceBillDetail {
+  return {
+    ...mapBillSummary(bill),
+    lines: (bill.lines ?? []).map(mapBillLine),
+    receipts: [],
+  }
+}
+
+export function mapFinanceReceipts(receipts: FinanceReceiptWire[], billId: string): FinanceReceiptRecord[] {
+  return receipts
+    .filter((receipt) => receipt.bill_id != null && text(receipt.bill_id) === billId)
+    .map((receipt) => ({
+      id: text(receipt.id),
+      receiptNo: receipt.receipt_no,
+      receivedAt: receipt.received_at,
+      amount: text(receipt.received_amount),
+      currencyCode: 'CNY',
+      method: receipt.payment_method,
+      voucherNo: receipt.voucher_no,
+      allocatedAmount: receipt.applied_amount == null ? '0' : text(receipt.applied_amount),
+    }))
+}
+
+export function sumDecimalStrings(values: string[]) {
+  let scale = 0
+  const parsed = values.map((value) => {
+    const normalized = value.trim() || '0'
+    const [integer = '0', fraction = ''] = normalized.split('.')
+    scale = Math.max(scale, fraction.length)
+    return { integer, fraction }
+  })
+  const total = parsed.reduce((sum, value) => {
+    const sign = value.integer.startsWith('-') ? -1n : 1n
+    const integer = value.integer.replace(/^[+-]/, '') || '0'
+    const digits = `${integer}${value.fraction.padEnd(scale, '0')}`
+    return sum + sign * BigInt(digits || '0')
+  }, 0n)
+  if (scale === 0) return total.toString()
+  const negative = total < 0n
+  const absolute = (negative ? -total : total).toString().padStart(scale + 1, '0')
+  const result = `${absolute.slice(0, -scale)}.${absolute.slice(-scale)}`
+  return negative ? `-${result}` : result
+}