/**
 * 财务总账 / 期间关账 / 平台对账路由。
 *
 * 总账是影子账：只读写 finance_*，不接管钱包余额。
 */
import { Router } from 'express'

import {
  closeFinancePeriod,
  getTrialBalance,
  listFinanceAccounts,
  listFinancePeriods,
  listJournalEntries,
  postManualVoucher,
  reopenFinancePeriod,
  syncFinanceLedgerFromFacts,
} from '../../services/finance/finance-ledger-service.js'
import {
  getFinanceReconciliation,
  importFinanceReconciliation,
  listFinanceReconciliations,
  resolveFinanceReconciliation,
} from '../../services/finance/finance-reconciliation-service.js'
import type { JsonObject } from '../../types/json.js'
import { formatShanghaiDate } from '../../utils/finance-date-range.js'
import { bodyOf, idOf, sessionOf } from './request-helpers.js'
import { createJsonHandler, requireAdminPermission, requireAdminRoles } from './session.js'

const router = Router()

router.use('/finance', requireAdminRoles(['admin', 'operator', 'finance']))

router.get(
  '/finance/ledger/accounts',
  requireAdminPermission('finance.view'),
  createJsonHandler(() => listFinanceAccounts(), {
    successMessage: 'ok',
    errorMessage: '读取科目表失败',
    scope: '[admin/finance/ledger/accounts]',
  }),
)

router.get(
  '/finance/ledger/trial-balance',
  requireAdminPermission('finance.view'),
  createJsonHandler(
    (req) => {
      const query = req.query as Record<string, unknown>
      const today = formatShanghaiDate(new Date())
      return getTrialBalance({
        dateFrom: String(query.dateFrom || query.date_from || `${today.slice(0, 7)}-01`),
        dateTo: String(query.dateTo || query.date_to || today),
      })
    },
    {
      successMessage: 'ok',
      errorMessage: '读取试算平衡失败',
      scope: '[admin/finance/ledger/trial-balance]',
    },
  ),
)

router.get(
  '/finance/ledger/entries',
  requireAdminPermission('finance.view'),
  createJsonHandler((req) => listJournalEntries(req.query as JsonObject), {
    successMessage: 'ok',
    errorMessage: '读取总账凭证失败',
    scope: '[admin/finance/ledger/entries]',
  }),
)

router.post(
  '/finance/ledger/sync',
  requireAdminPermission('finance.post'),
  createJsonHandler(
    (req) => {
      const body = bodyOf(req)
      const today = formatShanghaiDate(new Date())
      return syncFinanceLedgerFromFacts({
        dateFrom: String(body.dateFrom || body.date_from || `${today.slice(0, 7)}-01`),
        dateTo: String(body.dateTo || body.date_to || today),
      })
    },
    {
      successMessage: '总账已同步',
      errorMessage: '同步总账失败',
      scope: '[admin/finance/ledger/sync]',
      audit: (req, data) => ({
        action: 'finance_ledger_synced',
        targetType: 'finance_ledger',
        targetId: 'sales_fact',
        data: data && typeof data === 'object' ? (data as JsonObject) : {},
      }),
    },
  ),
)

router.post(
  '/finance/ledger/manual-voucher',
  requireAdminPermission('finance.post'),
  createJsonHandler((req) => postManualVoucher(bodyOf(req) as never, sessionOf(req)), {
    successMessage: '凭证已创建',
    errorMessage: '创建凭证失败',
    scope: '[admin/finance/ledger/manual-voucher]',
    audit: (req, data) => ({
      action: 'finance_manual_voucher_created',
      targetType: 'finance_journal_entry',
      targetId: String((data as { entryId?: number })?.entryId || ''),
      data: data && typeof data === 'object' ? (data as JsonObject) : {},
    }),
  }),
)

router.get(
  '/finance/periods',
  requireAdminPermission('finance.view'),
  createJsonHandler(() => listFinancePeriods(), {
    successMessage: 'ok',
    errorMessage: '读取会计期间失败',
    scope: '[admin/finance/periods]',
  }),
)

router.post(
  '/finance/periods/:periodKey/close',
  requireAdminPermission('finance.close'),
  createJsonHandler(
    (req) => {
      const body = bodyOf(req)
      return closeFinancePeriod(
        String((req.params as Record<string, string>).periodKey || ''),
        sessionOf(req),
        String(body.reason || ''),
      )
    },
    {
      successMessage: '期间已关账',
      errorMessage: '关账失败',
      scope: '[admin/finance/periods/close]',
      audit: (req, data) => ({
        action: 'finance_period_closed',
        targetType: 'finance_period',
        targetId: String((req.params as Record<string, string>).periodKey || ''),
        data: data && typeof data === 'object' ? (data as JsonObject) : {},
      }),
    },
  ),
)

router.post(
  '/finance/periods/:periodKey/reopen',
  requireAdminPermission('finance.close'),
  createJsonHandler(
    (req) => reopenFinancePeriod(String((req.params as Record<string, string>).periodKey || '')),
    {
      successMessage: '期间已重新打开',
      errorMessage: '反关账失败',
      scope: '[admin/finance/periods/reopen]',
      audit: (req) => ({
        action: 'finance_period_reopened',
        targetType: 'finance_period',
        targetId: String((req.params as Record<string, string>).periodKey || ''),
        data: {},
      }),
    },
  ),
)

router.get(
  '/finance/reconciliations',
  requireAdminPermission('finance.view'),
  createJsonHandler((req) => listFinanceReconciliations(req.query as JsonObject), {
    successMessage: 'ok',
    errorMessage: '读取对账批次失败',
    scope: '[admin/finance/reconciliations]',
  }),
)

router.post(
  '/finance/reconciliations/import',
  requireAdminPermission('finance.reconcile'),
  createJsonHandler((req) => importFinanceReconciliation(bodyOf(req), sessionOf(req)), {
    successMessage: '账单已导入',
    errorMessage: '导入账单失败',
    scope: '[admin/finance/reconciliations/import]',
    audit: (req, data) => ({
      action: 'finance_reconciliation_imported',
      targetType: 'finance_reconciliation',
      targetId: String((data as { reconciliationId?: number })?.reconciliationId || ''),
      data: data && typeof data === 'object' ? (data as JsonObject) : {},
    }),
  }),
)

router.get(
  '/finance/reconciliations/:id',
  requireAdminPermission('finance.view'),
  createJsonHandler((req) => getFinanceReconciliation(idOf(req, 'id')), {
    successMessage: 'ok',
    errorMessage: '读取对账明细失败',
    scope: '[admin/finance/reconciliations/detail]',
  }),
)

router.post(
  '/finance/reconciliations/:id/resolve',
  requireAdminPermission('finance.reconcile'),
  createJsonHandler(
    (req) => {
      const body = bodyOf(req)
      return resolveFinanceReconciliation(idOf(req, 'id'), body.note, sessionOf(req))
    },
    {
      successMessage: '对账批次已标记解决',
      errorMessage: '标记对账解决失败',
      scope: '[admin/finance/reconciliations/resolve]',
      audit: (req) => ({
        action: 'finance_reconciliation_resolved',
        targetType: 'finance_reconciliation',
        targetId: String(idOf(req, 'id') || ''),
        data: {},
      }),
    },
  ),
)

export default router