feat:新增账单导出、支付宝账单导入

src/services/dataTransferService.js

@@ -0,0 +1,495 @@
+import { v4 as uuidv4 } from 'uuid'
+import { fetchTransactions, insertTransaction, mergeImportedTransaction } from './transactionService.js'
+import { getDb, saveDbToStore } from '../lib/sqlite.js'
+
+const IMPORT_SOURCE_ALIPAY = 'alipay'
+const IMPORT_SUCCESS_STATUS = '交易成功'
+const ALIPAY_REQUIRED_HEADERS = ['交易时间', '交易分类', '交易对方', '商品说明', '收/支', '金额', '交易状态']
+const ALIPAY_HEADERS = {
+  occurredAt: '交易时间',
+  tradeCategory: '交易分类',
+  merchant: '交易对方',
+  counterpartyAccount: '对方账号',
+  productName: '商品说明',
+  direction: '收/支',
+  amount: '金额',
+  paymentMethod: '收/付款方式',
+  status: '交易状态',
+  orderId: '交易订单号',
+  merchantOrderId: '商家订单号',
+  note: '备注',
+}
+
+const downloadText = (filename, text, mimeType) => {
+  const blob = new Blob([text], { type: mimeType })
+  const url = URL.createObjectURL(blob)
+  const link = document.createElement('a')
+  link.href = url
+  link.download = filename
+  document.body.appendChild(link)
+  link.click()
+  document.body.removeChild(link)
+  URL.revokeObjectURL(url)
+}
+
+const escapeCsvCell = (value) => `"${String(value ?? '').replace(/"/g, '""')}"`
+
+const cleanCell = (value) =>
+  String(value ?? '')
+    .replace(/^\uFEFF/, '')
+    .replace(/\r/g, '')
+    .replace(/^"|"$/g, '')
+    .trim()
+
+const normalizeMerchantKey = (value) =>
+  String(value || '')
+    .toLowerCase()
+    .replace(/[\s"'`~!@#$%^&*()_+\-=[\]{};:,.<>/?\\|，。！？；：（）【】《》·、]/g, '')
+    .slice(0, 80)
+
+const normalizeAmount = (value) => {
+  const numeric = Number(String(value ?? '').replace(/[^\d.-]/g, ''))
+  return Number.isFinite(numeric) ? numeric : 0
+}
+
+const normalizeDate = (value) => {
+  if (!value) return ''
+  const normalized = String(value).trim().replace(/\//g, '-')
+  const parsed = new Date(normalized)
+  return Number.isNaN(parsed.getTime()) ? '' : parsed.toISOString()
+}
+
+const parseDelimitedLine = (line, delimiter) => {
+  const cells = []
+  let current = ''
+  let inQuotes = false
+
+  for (let index = 0; index < line.length; index += 1) {
+    const char = line[index]
+    const next = line[index + 1]
+
+    if (char === '"') {
+      if (inQuotes && next === '"') {
+        current += '"'
+        index += 1
+      } else {
+        inQuotes = !inQuotes
+      }
+      continue
+    }
+
+    if (!inQuotes && char === delimiter) {
+      cells.push(cleanCell(current))
+      current = ''
+      continue
+    }
+
+    current += char
+  }
+
+  cells.push(cleanCell(current))
+  return cells
+}
+
+const detectHeaderIndex = (rows) =>
+  rows.findIndex((row) => ALIPAY_REQUIRED_HEADERS.every((header) => row.includes(header)))
+
+const extractRowsFromHtml = (content) => {
+  const parser = new DOMParser()
+  const doc = parser.parseFromString(content, 'text/html')
+  return Array.from(doc.querySelectorAll('tr')).map((row) =>
+    Array.from(row.querySelectorAll('th,td')).map((cell) => cleanCell(cell.textContent)),
+  )
+}
+
+const extractRowsFromText = (content) => {
+  const lines = content.split(/\r?\n/).filter((line) => line.trim())
+  const headerLine = lines.find((line) => ALIPAY_REQUIRED_HEADERS.every((header) => line.includes(header))) || ''
+  const delimiter = headerLine.split('\t').length >= headerLine.split(',').length ? '\t' : ','
+  return lines.map((line) => parseDelimitedLine(line, delimiter))
+}
+
+const parseAlipayRows = (content) => {
+  const rows = /<table/i.test(content) ? extractRowsFromHtml(content) : extractRowsFromText(content)
+  const headerIndex = detectHeaderIndex(rows)
+  if (headerIndex < 0) {
+    throw new Error('未找到支付宝账单表头，请确认导出文件内容完整')
+  }
+
+  const header = rows[headerIndex]
+  const getCell = (row, key) => row[header.indexOf(ALIPAY_HEADERS[key])] || ''
+
+  return rows
+    .slice(headerIndex + 1)
+    .filter((row) => cleanCell(getCell(row, 'occurredAt')))
+    .map((row) => ({
+      occurredAt: cleanCell(getCell(row, 'occurredAt')),
+      tradeCategory: cleanCell(getCell(row, 'tradeCategory')),
+      merchant: cleanCell(getCell(row, 'merchant')),
+      counterpartyAccount: cleanCell(getCell(row, 'counterpartyAccount')),
+      productName: cleanCell(getCell(row, 'productName')),
+      direction: cleanCell(getCell(row, 'direction')),
+      amount: cleanCell(getCell(row, 'amount')),
+      paymentMethod: cleanCell(getCell(row, 'paymentMethod')),
+      status: cleanCell(getCell(row, 'status')),
+      orderId: cleanCell(getCell(row, 'orderId')),
+      merchantOrderId: cleanCell(getCell(row, 'merchantOrderId')),
+      note: cleanCell(getCell(row, 'note')),
+    }))
+}
+
+const resolveCategory = (row, direction) => {
+  const text = `${row.tradeCategory} ${row.productName} ${row.merchant}`.toLowerCase()
+  if (direction === 'neutral') return 'Transfer'
+  if (direction === 'income') return 'Income'
+  if (/餐饮|美食|咖啡|奶茶|外卖|饭|面|粉/.test(text)) return 'Food'
+  if (/交通|出行|打车|公交|地铁|单车|骑行|哈啰|滴滴/.test(text)) return 'Transport'
+  if (/超市|便利|百货|买菜|生鲜|7-11|罗森|全家/.test(text)) return 'Groceries'
+  if (/健康|药|医院|诊所|体检/.test(text)) return 'Health'
+  if (/娱乐|电影|游戏|门票|演出|网吧/.test(text)) return 'Entertainment'
+  return direction === 'expense' ? 'Expense' : 'Uncategorized'
+}
+
+const resolveFundingSource = (paymentMethod) => {
+  const text = String(paymentMethod || '')
+  if (!text) return { fundSourceType: 'cash', fundSourceName: '现金账户' }
+  if (/信用卡|花呗|白条/.test(text)) {
+    return { fundSourceType: 'credit', fundSourceName: text }
+  }
+  if (/储蓄卡|银行卡|银行/.test(text)) {
+    return { fundSourceType: 'bank', fundSourceName: text }
+  }
+  if (/余额|零钱|账户余额/.test(text)) {
+    return { fundSourceType: 'cash', fundSourceName: text }
+  }
+  if (/卡/.test(text)) {
+    return { fundSourceType: 'stored_value', fundSourceName: text }
+  }
+  return { fundSourceType: 'cash', fundSourceName: text }
+}
+
+const buildSourceRecordHash = (payload) =>
+  [
+    payload.sourceType,
+    payload.date,
+    payload.amount.toFixed(2),
+    normalizeMerchantKey(payload.merchant),
+    normalizeMerchantKey(payload.note),
+  ].join('|')
+
+const normalizeImportedRow = (row, importBatchId) => {
+  const normalizedDate = normalizeDate(row.occurredAt)
+  if (!normalizedDate) return null
+
+  const directionText = row.direction
+  const rawAmount = Math.abs(normalizeAmount(row.amount))
+  const direction =
+    directionText.includes('收入') ? 'income' : directionText.includes('支出') ? 'expense' : 'neutral'
+
+  const { fundSourceType, fundSourceName } = resolveFundingSource(row.paymentMethod)
+  const merchant = row.merchant || row.productName || '支付宝账单导入'
+  const note = [row.productName, row.note].filter(Boolean).join(' | ')
+  const amount =
+    direction === 'income' ? rawAmount : direction === 'expense' ? (rawAmount === 0 ? 0 : rawAmount * -1) : rawAmount
+
+  const payload = {
+    merchant,
+    category: resolveCategory(row, direction),
+    note,
+    date: normalizedDate,
+    amount,
+    syncStatus: 'pending',
+    entryType: direction === 'neutral' ? 'transfer' : direction,
+    fundSourceType,
+    fundSourceName,
+    fundTargetType: direction === 'income' ? 'cash' : direction === 'neutral' ? 'stored_value' : 'merchant',
+    fundTargetName:
+      direction === 'income' ? '现金账户' : direction === 'neutral' ? merchant || '储值账户' : merchant,
+    impactExpense: direction === 'expense',
+    impactIncome: direction === 'income',
+    sourceType: IMPORT_SOURCE_ALIPAY,
+    sourceOrderId: row.orderId,
+    sourceMerchantOrderId: row.merchantOrderId,
+    sourceCounterparty: row.merchant,
+    sourceAccount: row.counterpartyAccount,
+    sourcePaymentMethod: row.paymentMethod,
+    importBatchId,
+  }
+
+  payload.sourceRecordHash = buildSourceRecordHash(payload)
+  return payload
+}
+
+const isSameAmount = (left, right) => Math.abs(Number(left) - Number(right)) < 0.005
+
+const isMerchantLikelySame = (left, right) => {
+  const leftKey = normalizeMerchantKey(left)
+  const rightKey = normalizeMerchantKey(right)
+  if (!leftKey || !rightKey) return false
+  return leftKey === rightKey || leftKey.includes(rightKey) || rightKey.includes(leftKey)
+}
+
+const findExactDuplicate = (transactions, payload) =>
+  transactions.find((transaction) => {
+    if (payload.sourceOrderId && transaction.sourceType === payload.sourceType) {
+      return transaction.sourceOrderId === payload.sourceOrderId
+    }
+    return payload.sourceRecordHash && transaction.sourceRecordHash === payload.sourceRecordHash
+  })
+
+const findMergeCandidate = (transactions, payload) => {
+  const payloadTime = new Date(payload.date).getTime()
+  return transactions.find((transaction) => {
+    const diff = Math.abs(new Date(transaction.date).getTime() - payloadTime)
+    return (
+      diff <= 10 * 60 * 1000 &&
+      isSameAmount(transaction.amount, payload.amount) &&
+      isMerchantLikelySame(transaction.merchant, payload.merchant)
+    )
+  })
+}
+
+const createImportBatch = async ({ source, fileName }) => {
+  const db = await getDb()
+  const id = uuidv4()
+  await db.run(
+    `
+      INSERT INTO import_batches (id, source, file_name, imported_at, status)
+      VALUES (?, ?, ?, ?, ?)
+    `,
+    [id, source, fileName || null, new Date().toISOString(), 'running'],
+  )
+  return id
+}
+
+const recordImportLine = async (batchId, payload) => {
+  const db = await getDb()
+  await db.run(
+    `
+      INSERT INTO import_lines (
+        id,
+        batch_id,
+        source_order_id,
+        merchant,
+        amount,
+        occurred_at,
+        status,
+        transaction_id,
+        reason,
+        raw_data,
+        created_at
+      )
+      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+    `,
+    [
+      uuidv4(),
+      batchId,
+      payload.sourceOrderId || null,
+      payload.merchant || null,
+      Number(payload.amount || 0),
+      payload.date || null,
+      payload.status,
+      payload.transactionId || null,
+      payload.reason || null,
+      JSON.stringify(payload.rawData || {}),
+      new Date().toISOString(),
+    ],
+  )
+}
+
+const finalizeImportBatch = async (batchId, summary) => {
+  const db = await getDb()
+  await db.run(
+    `
+      UPDATE import_batches
+      SET total_count = ?, inserted_count = ?, merged_count = ?, skipped_count = ?, status = ?, summary_json = ?
+      WHERE id = ?
+    `,
+    [
+      summary.totalCount,
+      summary.insertedCount,
+      summary.mergedCount,
+      summary.skippedCount,
+      'completed',
+      JSON.stringify(summary),
+      batchId,
+    ],
+  )
+}
+
+export const importAlipayStatement = async (file) => {
+  const content = await file.text()
+  const parsedRows = parseAlipayRows(content)
+  const batchId = await createImportBatch({
+    source: IMPORT_SOURCE_ALIPAY,
+    fileName: file?.name || 'alipay-statement',
+  })
+
+  const summary = {
+    batchId,
+    source: IMPORT_SOURCE_ALIPAY,
+    fileName: file?.name || '',
+    totalCount: 0,
+    insertedCount: 0,
+    mergedCount: 0,
+    skippedCount: 0,
+    skippedReasons: [],
+  }
+
+  const existingTransactions = await fetchTransactions()
+  const inBatchKeys = new Set()
+
+  for (const row of parsedRows) {
+    summary.totalCount += 1
+
+    if (row.status && row.status !== IMPORT_SUCCESS_STATUS) {
+      summary.skippedCount += 1
+      summary.skippedReasons.push(`${row.occurredAt} ${row.merchant || row.productName}：状态不是交易成功`)
+      await recordImportLine(batchId, {
+        sourceOrderId: row.orderId,
+        merchant: row.merchant || row.productName,
+        amount: normalizeAmount(row.amount),
+        date: normalizeDate(row.occurredAt),
+        status: 'skipped',
+        reason: '交易状态不是交易成功',
+        rawData: row,
+      })
+      continue
+    }
+
+    const payload = normalizeImportedRow(row, batchId)
+    if (!payload) {
+      summary.skippedCount += 1
+      summary.skippedReasons.push(`${row.occurredAt}：无法解析交易时间`)
+      await recordImportLine(batchId, {
+        sourceOrderId: row.orderId,
+        merchant: row.merchant || row.productName,
+        amount: normalizeAmount(row.amount),
+        date: '',
+        status: 'skipped',
+        reason: '无法解析交易时间',
+        rawData: row,
+      })
+      continue
+    }
+
+    const inBatchKey = payload.sourceOrderId || payload.sourceRecordHash
+    if (inBatchKey && inBatchKeys.has(inBatchKey)) {
+      summary.skippedCount += 1
+      summary.skippedReasons.push(`${payload.merchant}：导入文件内重复记录已跳过`)
+      await recordImportLine(batchId, {
+        ...payload,
+        status: 'skipped',
+        reason: '导入文件内重复记录',
+        rawData: row,
+      })
+      continue
+    }
+    if (inBatchKey) {
+      inBatchKeys.add(inBatchKey)
+    }
+
+    const exactDuplicate = findExactDuplicate(existingTransactions, payload)
+    if (exactDuplicate) {
+      summary.skippedCount += 1
+      await recordImportLine(batchId, {
+        ...payload,
+        transactionId: exactDuplicate.id,
+        status: 'skipped',
+        reason: '外部订单号或记录指纹已存在',
+        rawData: row,
+      })
+      continue
+    }
+
+    const mergeCandidate = findMergeCandidate(existingTransactions, payload)
+    if (mergeCandidate) {
+      const merged = await mergeImportedTransaction(mergeCandidate.id, payload)
+      if (merged) {
+        summary.mergedCount += 1
+        const index = existingTransactions.findIndex((item) => item.id === merged.id)
+        if (index >= 0) existingTransactions[index] = merged
+        await recordImportLine(batchId, {
+          ...payload,
+          transactionId: merged.id,
+          status: 'merged',
+          reason: '与现有记录合并',
+          rawData: row,
+        })
+        continue
+      }
+    }
+
+    const inserted = await insertTransaction(payload)
+    existingTransactions.unshift(inserted)
+    summary.insertedCount += 1
+    await recordImportLine(batchId, {
+      ...payload,
+      transactionId: inserted.id,
+      status: 'inserted',
+      reason: '新记录已导入',
+      rawData: row,
+    })
+  }
+
+  await finalizeImportBatch(batchId, summary)
+  await saveDbToStore()
+  return summary
+}
+
+export const exportTransactionsAsCsv = async () => {
+  const transactions = await fetchTransactions()
+  const rows = [
+    [
+      '交易时间',
+      '金额',
+      '方向',
+      '商户',
+      '分类',
+      '备注',
+      '记录类型',
+      '资金来源',
+      '资金去向',
+      'AI 状态',
+      '来源',
+      '外部订单号',
+    ],
+    ...transactions.map((transaction) => [
+      transaction.date,
+      transaction.amount,
+      transaction.amount > 0 ? '收入' : transaction.amount < 0 ? '支出' : '零额',
+      transaction.merchant,
+      transaction.category,
+      transaction.note,
+      transaction.entryType,
+      transaction.fundSourceName || transaction.fundSourceType,
+      transaction.fundTargetName || transaction.fundTargetType,
+      transaction.aiStatus,
+      transaction.sourceType,
+      transaction.sourceOrderId,
+    ]),
+  ]
+
+  const content = `\uFEFF${rows.map((row) => row.map(escapeCsvCell).join(',')).join('\n')}`
+  downloadText(`echo-ledger-${new Date().toISOString().slice(0, 10)}.csv`, content, 'text/csv;charset=utf-8;')
+  return transactions.length
+}
+
+export const exportTransactionsAsJson = async () => {
+  const transactions = await fetchTransactions()
+  const content = JSON.stringify(
+    {
+      exportedAt: new Date().toISOString(),
+      count: transactions.length,
+      transactions,
+    },
+    null,
+    2,
+  )
+  downloadText(
+    `echo-ledger-${new Date().toISOString().slice(0, 10)}.json`,
+    content,
+    'application/json;charset=utf-8;',
+  )
+  return transactions.length
+}

src/services/transactionService.js

@@ -32,7 +32,15 @@ const TRANSACTION_SELECT_FIELDS = `
   ai_reason,
   ai_status,
   ai_model,
-  ai_normalized_merchant
+  ai_normalized_merchant,
+  source_type,
+  source_order_id,
+  source_merchant_order_id,
+  source_counterparty,
+  source_account,
+  source_payment_method,
+  source_record_hash,
+  import_batch_id
 `
 
 const normalizeStatus = (value) => {
@@ -66,6 +74,17 @@ const normalizeFlag = (value, fallback = false) => {
 
 const inferEntryTypeFromAmount = (amount) => (Number(amount) >= 0 ? 'income' : 'expense')
 
+const sanitizeSourceMetadata = (payload = {}, existing = null) => ({
+  sourceType: payload.sourceType ?? existing?.sourceType ?? '',
+  sourceOrderId: payload.sourceOrderId ?? existing?.sourceOrderId ?? '',
+  sourceMerchantOrderId: payload.sourceMerchantOrderId ?? existing?.sourceMerchantOrderId ?? '',
+  sourceCounterparty: payload.sourceCounterparty ?? existing?.sourceCounterparty ?? '',
+  sourceAccount: payload.sourceAccount ?? existing?.sourceAccount ?? '',
+  sourcePaymentMethod: payload.sourcePaymentMethod ?? existing?.sourcePaymentMethod ?? '',
+  sourceRecordHash: payload.sourceRecordHash ?? existing?.sourceRecordHash ?? '',
+  importBatchId: payload.importBatchId ?? existing?.importBatchId ?? '',
+})
+
 const buildLedgerDefaults = (payload = {}, existing = null) => {
   const entryType = payload.entryType || existing?.entryType || inferEntryTypeFromAmount(payload.amount ?? existing?.amount ?? 0)
   const defaults = DEFAULT_LEDGER_BY_ENTRY_TYPE[entryType] || DEFAULT_LEDGER_BY_ENTRY_TYPE.expense
@@ -118,6 +137,14 @@ const mapRow = (row) => {
     aiStatus: normalizeAiStatus(row.ai_status),
     aiModel: row.ai_model || '',
     aiNormalizedMerchant: row.ai_normalized_merchant || '',
+    sourceType: row.source_type || '',
+    sourceOrderId: row.source_order_id || '',
+    sourceMerchantOrderId: row.source_merchant_order_id || '',
+    sourceCounterparty: row.source_counterparty || '',
+    sourceAccount: row.source_account || '',
+    sourcePaymentMethod: row.source_payment_method || '',
+    sourceRecordHash: row.source_record_hash || '',
+    importBatchId: row.import_batch_id || '',
   }
 }
 
@@ -249,6 +276,7 @@ export const insertTransaction = async (payload) => {
   const id = payload.id || uuidv4()
   const amount = Number(payload.amount)
   const ledger = buildLedgerDefaults(payload)
+  const sourceMeta = sanitizeSourceMetadata(payload)
   const sanitized = {
     merchant: payload.merchant?.trim() || 'Unknown',
     category: payload.category?.trim() || 'Uncategorized',
@@ -257,6 +285,7 @@ export const insertTransaction = async (payload) => {
     amount,
     syncStatus: statusMap[payload.syncStatus] ?? statusMap.pending,
     ...ledger,
+    ...sourceMeta,
   }
 
   await db.run(
@@ -275,9 +304,17 @@ export const insertTransaction = async (payload) => {
         fund_target_type,
         fund_target_name,
         impact_expense,
-        impact_income
+        impact_income,
+        source_type,
+        source_order_id,
+        source_merchant_order_id,
+        source_counterparty,
+        source_account,
+        source_payment_method,
+        source_record_hash,
+        import_batch_id
       )
-      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+      VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
     `,
     [
       id,
@@ -294,6 +331,14 @@ export const insertTransaction = async (payload) => {
       sanitized.fundTargetName || null,
       sanitized.impactExpense ? 1 : 0,
       sanitized.impactIncome ? 1 : 0,
+      sanitized.sourceType || null,
+      sanitized.sourceOrderId || null,
+      sanitized.sourceMerchantOrderId || null,
+      sanitized.sourceCounterparty || null,
+      sanitized.sourceAccount || null,
+      sanitized.sourcePaymentMethod || null,
+      sanitized.sourceRecordHash || null,
+      sanitized.importBatchId || null,
     ],
   )
 
@@ -310,6 +355,14 @@ export const insertTransaction = async (payload) => {
     aiStatus: 'idle',
     aiModel: '',
     aiNormalizedMerchant: '',
+    sourceType: sanitized.sourceType,
+    sourceOrderId: sanitized.sourceOrderId,
+    sourceMerchantOrderId: sanitized.sourceMerchantOrderId,
+    sourceCounterparty: sanitized.sourceCounterparty,
+    sourceAccount: sanitized.sourceAccount,
+    sourcePaymentMethod: sanitized.sourcePaymentMethod,
+    sourceRecordHash: sanitized.sourceRecordHash,
+    importBatchId: sanitized.importBatchId,
   }
 }
 
@@ -319,10 +372,11 @@ export const updateTransaction = async (payload) => {
 
   const db = await getDb()
   const ledger = buildLedgerDefaults(payload, existing)
+  const sourceMeta = sanitizeSourceMetadata(payload, existing)
   await db.run(
     `
       UPDATE transactions
-      SET amount = ?, merchant = ?, category = ?, date = ?, note = ?, sync_status = ?, entry_type = ?, fund_source_type = ?, fund_source_name = ?, fund_target_type = ?, fund_target_name = ?, impact_expense = ?, impact_income = ?
+      SET amount = ?, merchant = ?, category = ?, date = ?, note = ?, sync_status = ?, entry_type = ?, fund_source_type = ?, fund_source_name = ?, fund_target_type = ?, fund_target_name = ?, impact_expense = ?, impact_income = ?, source_type = ?, source_order_id = ?, source_merchant_order_id = ?, source_counterparty = ?, source_account = ?, source_payment_method = ?, source_record_hash = ?, import_batch_id = ?
       WHERE id = ?
     `,
     [
@@ -339,6 +393,14 @@ export const updateTransaction = async (payload) => {
       ledger.fundTargetName || null,
       ledger.impactExpense ? 1 : 0,
       ledger.impactIncome ? 1 : 0,
+      sourceMeta.sourceType || null,
+      sourceMeta.sourceOrderId || null,
+      sourceMeta.sourceMerchantOrderId || null,
+      sourceMeta.sourceCounterparty || null,
+      sourceMeta.sourceAccount || null,
+      sourceMeta.sourcePaymentMethod || null,
+      sourceMeta.sourceRecordHash || null,
+      sourceMeta.importBatchId || null,
       payload.id,
     ],
   )
@@ -435,3 +497,51 @@ export const deleteTransaction = async (id) => {
   await db.run(`DELETE FROM transactions WHERE id = ?`, [id])
   await saveDbToStore()
 }
+
+export const mergeImportedTransaction = async (transactionId, payload) => {
+  const existing = await getTransactionById(transactionId)
+  if (!existing) return null
+
+  const mergedNote = [existing.note, payload.note]
+    .filter(Boolean)
+    .filter((value, index, list) => list.indexOf(value) === index)
+    .join(' | ')
+    .slice(0, 500)
+
+  const nextCategory =
+    existing.category === 'Uncategorized' || existing.category === 'Expense'
+      ? payload.category || existing.category
+      : existing.category
+
+  return updateTransaction({
+    ...existing,
+    id: transactionId,
+    category: nextCategory,
+    note: mergedNote,
+    fundSourceType:
+      existing.fundSourceType === 'cash' && payload.fundSourceType
+        ? payload.fundSourceType
+        : existing.fundSourceType,
+    fundSourceName:
+      existing.fundSourceType === 'cash' && payload.fundSourceName
+        ? payload.fundSourceName
+        : existing.fundSourceName,
+    fundTargetType:
+      existing.fundTargetType === 'merchant' && payload.fundTargetType
+        ? payload.fundTargetType
+        : existing.fundTargetType,
+    fundTargetName:
+      (!existing.fundTargetName || existing.fundTargetName === existing.merchant) &&
+      payload.fundTargetName
+        ? payload.fundTargetName
+        : existing.fundTargetName,
+    sourceType: payload.sourceType || existing.sourceType,
+    sourceOrderId: payload.sourceOrderId || existing.sourceOrderId,
+    sourceMerchantOrderId: payload.sourceMerchantOrderId || existing.sourceMerchantOrderId,
+    sourceCounterparty: payload.sourceCounterparty || existing.sourceCounterparty,
+    sourceAccount: payload.sourceAccount || existing.sourceAccount,
+    sourcePaymentMethod: payload.sourcePaymentMethod || existing.sourcePaymentMethod,
+    sourceRecordHash: payload.sourceRecordHash || existing.sourceRecordHash,
+    importBatchId: payload.importBatchId || existing.importBatchId,
+  })
+}