import assert from 'node:assert/strict'
import test from 'node:test'
import { readFileSync } from 'node:fs'
import ts from 'typescript'
import * as vue from 'vue'

function evaluate(source, dependencies = {}) {
  const code = ts.transpileModule(source, { compilerOptions: { module: ts.ModuleKind.CommonJS, target: ts.ScriptTarget.ES2022 } }).outputText
  const exports = {}
  new Function('require', 'exports', code)(id => {
    assert.ok(id in dependencies, `Unexpected dependency ${id}`)
    return dependencies[id]
  }, exports)
  return exports
}
const eligibility = evaluate(readFileSync(new URL('../utils/customsEligibility.ts', import.meta.url), 'utf8'))
const customsApi = evaluate(readFileSync(new URL('../api/customs.ts', import.meta.url), 'utf8'), {
  '@/api/http': {}, '@/modules/first-leg/api/firstLeg': {},
})
const order = (id, status = 'LOADED', taxMode = 'TAX_REFUND') => ({ id, status, taxMode, hasCompletedLoadingPlan: ['LOADED', 'DELIVERED', 'COMPLETED'].includes(status), orderNo: `ORDER-${id}`, businessSummary: { inboundCode: `IN-${id}` } })
const detail = id => ({ status: 'COMPLETED', merchantStatus: 'CUSTOMS_COMPLETED', inbounds: [{ orderId: id, taxMode: 'TAX_REFUND' }] })
function harness(t, orders, getDetail = async id => detail(id)) {
  const store = { loadError: '', failPage: 0, transformPage: value => value }, calls = [], pageCalls = []
  const unifiedApi = evaluate(readFileSync(new URL('../api/unifiedOrders.ts', import.meta.url), 'utf8'), {
    '@/api/http': { apiRequest: async ({ method, url, params: { page, size, taxMode, loaded } }) => {
      assert.equal(method, 'GET')
      assert.equal(url, '/merchant/v1/orders')
      pageCalls.push({ page, size, taxMode, loaded })
      if (store.loadError || store.failPage === page) throw new Error(store.loadError || '第二页订单查询失败')
      // Model server filtering BEFORE pagination and COUNT, using the actual
      // request produced by the production API. Missing taxMode scans all rows.
      const filtered = orders.filter(row => (!taxMode || row.taxMode === taxMode)
        && (loaded === undefined || row.hasCompletedLoadingPlan === loaded))
      return store.transformPage({ page, size, total: filtered.length, pages: Math.ceil(filtered.length / size),
        records: filtered.slice((page - 1) * size, page * size).map(row => ({ orderId: row.id, orderNo: row.orderNo, mainStatus: row.status, taxMode: row.taxMode, inboundCode: row.businessSummary.inboundCode })) })
    } },
  })
  const reader = evaluate(readFileSync(new URL('../utils/customsDocumentsReader.ts', import.meta.url), 'utf8'), {
    './customsEligibility': eligibility,
    '../api/unifiedOrders': unifiedApi,
    '../api/customs': { getMerchantCustomsForOrder: id => { calls.push(id); return getDetail(id) }, isMerchantCustomsUnavailable: error => error?.code === 'A0404' },
  })
  const source = readFileSync(new URL('./CustomsDocumentsView.vue', import.meta.url), 'utf8').match(/<script setup lang="ts">([\s\S]*?)<\/script>/)[1]
  const scope = vue.effectScope()
  const view = scope.run(() => evaluate(source + '\nexport { load, records, loading, errorMessage, openDetail, selectedOrderId, selectedDetail, dialogOpen, search, queryModel, filteredRecords, pagedRecords, page, pageSize, queryFields, statusLabel, statusType, updateDetail }', {
    vue: { ...vue, onMounted() {} },
    '../utils/customsDocumentsReader': reader,
    '../api/customs': customsApi,
  }))
  t.after(() => scope.stop())
  return { view, store, calls, pageCalls }
}

test('server-filtered request reaches five refund records originally on page 28 without scanning buy orders', async t => {
  const orders = Array.from({ length: 5528 }, (_, i) => order(`buy-${i}`, 'COMPLETED', 'BUY_DECLARATION'))
  orders.push(...Array.from({ length: 2613 }, (_, i) => order(`not-loaded-${i}`, 'WAIT_MEASURE')))
  orders.push(...Array.from({ length: 5 }, (_, i) => order(`historical-${i}`, 'COMPLETED')))
  const { view, calls, pageCalls } = harness(t, orders)
  await view.load()
  assert.deepEqual(calls, Array.from({ length: 5 }, (_, i) => `historical-${i}`))
  assert.equal(view.records.value.length, 5)
  assert.deepEqual(pageCalls, [{ page: 1, size: 200, taxMode: 'TAX_REFUND', loaded: true }])
  view.queryModel.value.inboundCode = 'historical-4'; view.search()
  assert.equal(view.filteredRecords.value.length, 1)
  view.queryModel.value = { orderNo: '', inboundCode: '', containerNo: '', status: '' }; view.search()
  assert.equal(view.filteredRecords.value.length, 5)
  assert.equal(pageCalls.length, 1)
  assert.equal(calls.length, 5)
})

test('second page failure is explicit and retry does not retain an incomplete result', async t => {
  const orders = Array.from({ length: 201 }, (_, i) => order(String(i)))
  const { view, store, pageCalls } = harness(t, orders)
  store.failPage = 2
  await view.load()
  assert.equal(view.records.value.length, 0)
  assert.equal(view.errorMessage.value, '第二页订单查询失败')
  store.failPage = 0
  await view.load()
  assert.equal(view.records.value.length, 201)
  assert.equal(view.errorMessage.value, '')
  assert.equal(pageCalls.length, 4)
})

test('display pagination reaches the final refund order without refetching or opening the wrong detail', async t => {
  const { view, calls, pageCalls } = harness(t, Array.from({ length: 21 }, (_, i) => order(`refund-${i}`, 'COMPLETED')))
  await view.load()
  assert.equal(view.pagedRecords.value.length, 20)
  view.page.value = 2
  assert.deepEqual(view.pagedRecords.value.map(row => row.order.id), ['refund-20'])
  view.openDetail(view.pagedRecords.value[0])
  assert.equal(view.selectedOrderId.value, 'refund-20')
  assert.deepEqual(view.selectedDetail.value.inbounds, [{ orderId: 'refund-20', taxMode: 'TAX_REFUND' }])
  view.pageSize.value = 10
  await vue.nextTick()
  assert.equal(view.page.value, 1)
  assert.equal(view.pagedRecords.value.length, 10)
  view.page.value = 3
  assert.deepEqual(view.pagedRecords.value.map(row => row.order.id), ['refund-20'])
  assert.equal(pageCalls.length, 1)
  assert.equal(calls.length, 21)
})

test('searching from a later display page resets pagination and clearing filters restores all documents', async t => {
  const { view, calls } = harness(t, Array.from({ length: 21 }, (_, i) => order(`refund-${i}`)))
  await view.load()
  view.page.value = 2
  view.queryModel.value.inboundCode = 'IN-refund-20'
  view.search()
  await vue.nextTick()
  assert.equal(view.page.value, 1)
  assert.deepEqual(view.pagedRecords.value.map(row => row.order.id), ['refund-20'])
  view.queryModel.value.inboundCode = 'does-not-exist'
  view.search()
  await vue.nextTick()
  assert.equal(view.page.value, 1)
  assert.equal(view.pagedRecords.value.length, 0)
  view.queryModel.value.inboundCode = ''
  view.search()
  assert.equal(view.filteredRecords.value.length, 21)
  assert.equal(view.pagedRecords.value.length, 20)
  assert.equal(calls.length, 21)
})

test('refresh failure on a later page clears stale rows and retry returns to a valid page', async t => {
  const { view, store } = harness(t, Array.from({ length: 21 }, (_, i) => order(`refund-${i}`)))
  await view.load()
  view.page.value = 2
  store.loadError = '资料列表请求失败'
  await view.load()
  await vue.nextTick()
  assert.equal(view.page.value, 1)
  assert.equal(view.pagedRecords.value.length, 0)
  assert.equal(view.errorMessage.value, '资料列表请求失败')
  store.loadError = ''
  await view.load()
  assert.equal(view.page.value, 1)
  assert.equal(view.pagedRecords.value.length, 20)
  assert.equal(view.filteredRecords.value.length, 21)
  assert.equal(view.errorMessage.value, '')
})

test('empty pages, duplicate records and changing totals cannot silently truncate history', async t => {
  for (const change of [
    response => response.page === 2 ? { ...response, records: [] } : response,
    response => response.page === 2 ? { ...response, records: [{ ...response.records[0], orderId: '0' }] } : response,
    response => response.page === 2 ? { ...response, total: 202 } : response,
  ]) {
    const { view, store, pageCalls } = harness(t, Array.from({ length: 201 }, (_, i) => order(String(i), 'COMPLETED')))
    store.transformPage = change
    await view.load()
    assert.ok(view.errorMessage.value)
    assert.equal(view.records.value.length, 0)
    assert.equal(pageCalls.length, 2)
  }
})

test('document fetch concurrency never exceeds four and each candidate is requested once', async t => {
  let active = 0, peak = 0
  const { view, calls, pageCalls } = harness(t, Array.from({ length: 205 }, (_, i) => order(String(i))), async id => {
    active += 1; peak = Math.max(peak, active)
    await new Promise(resolve => setImmediate(resolve))
    active -= 1
    return detail(id)
  })
  await view.load()
  assert.equal(peak, 4)
  assert.equal(new Set(calls).size, 205)
  assert.equal(calls.length, 205)
  assert.equal(pageCalls.length, 2)
  assert.deepEqual(pageCalls, [{ page: 1, size: 200, taxMode: 'TAX_REFUND', loaded: true }, { page: 2, size: 200, taxMode: 'TAX_REFUND', loaded: true }])
  assert.equal(view.records.value.length, 205)
})

test('empty result uses one page request and no document requests', async t => {
  const { view, calls, pageCalls } = harness(t, [])
  await view.load()
  assert.equal(pageCalls.length, 1)
  assert.equal(calls.length, 0)
  assert.equal(view.errorMessage.value, '')
})

test('tax-refund documents remain accessible through delivered and completed orders; buy orders and preloading are excluded', async t => {
  const stages = ['DRAFT', 'PENDING_REVIEW', 'WAIT_MEASURE', 'WAIT_PALLETIZE', 'WAIT_SPLIT', 'LOADING', 'LOADED', 'DELIVERED', 'COMPLETED']
  const orders = stages.flatMap(status => [order(status, status), order(`BUY-${status}`, status, 'BUY_DECLARATION')])
  const { view, calls } = harness(t, orders)
  await view.load()
  assert.deepEqual(calls, ['LOADED', 'DELIVERED', 'COMPLETED'])
  assert.deepEqual(view.records.value.map(row => row.order.id), calls)
  const completed = view.records.value.find(row => row.order.id === 'COMPLETED')
  view.openDetail(completed)
  assert.equal(view.selectedOrderId.value, 'COMPLETED')
  assert.equal(view.selectedDetail.value.status, 'COMPLETED')
  assert.equal(view.dialogOpen.value, true)
  view.queryModel.value.status = 'CUSTOMS_COMPLETED'; view.search()
  assert.equal(view.filteredRecords.value.length, 3)
  assert.equal(calls.length, 3, 'local filtering does not refetch documents')
})

test('only matching server-returned tax-refund ownership is displayed', async t => {
  const { view } = harness(t, [order('one'), order('two')], async id => id === 'one' ? detail('someone-else') : { inbounds: [{ orderId: id, taxMode: 'BUY_DECLARATION' }] })
  await view.load()
  assert.equal(view.records.value.length, 0)
})

test('partial failures are visible and retry replaces the result; unavailable customs is not a transport failure', async t => {
  let fail = true
  const { view } = harness(t, [order('ok'), order('retry'), order('unavailable')], async id => {
    if (id === 'unavailable') throw Object.assign(new Error('not associated'), { code: 'A0404' })
    if (id === 'retry' && fail) throw new Error('network')
    return detail(id)
  })
  await view.load()
  assert.equal(view.records.value.length, 1)
  assert.equal(view.errorMessage.value, '1 票订单的报关资料加载失败，请重新加载')
  fail = false; await view.load()
  assert.equal(view.records.value.length, 2)
  assert.equal(view.errorMessage.value, '')
})

test('order query failure is shown instead of a successful empty result', async t => {
  const { view, store, calls } = harness(t, [order('old')])
  await view.load()
  store.loadError = '订单查询失败'; await view.load()
  assert.equal(view.records.value.length, 0)
  assert.equal(view.errorMessage.value, '订单查询失败')
  assert.equal(calls.length, 1)
  assert.equal(view.loading.value, false)
})

test('repeated refresh during an active load does not duplicate requests', async t => {
  let resolve
  const pending = new Promise(done => { resolve = done })
  const { view, calls } = harness(t, [order('one')], () => pending)
  const first = view.load()
  await Promise.resolve()
  await view.load()
  assert.deepEqual(calls, ['one'])
  resolve(detail('one')); await first
  assert.equal(view.loading.value, false)
})

test('mixed-container labels and filters use only the current customer status', async t => {
  const states = [
    ['uploaded', 'WAITING_CUSTOMER_DOCUMENTS', 'DOCUMENT_UPLOADED', 1, '资料已上传', 'success'],
    ['waiting', 'WAITING_CUSTOMER_DOCUMENTS', 'WAITING_UPLOAD', 0, '待上传资料', 'warning'],
    ['declaring', 'DECLARING', 'DECLARING', 1, '报关中', 'primary'],
    ['completed', 'COMPLETED', 'CUSTOMS_COMPLETED', 1, '报关完成', 'success'],
  ]
  const { view, calls } = harness(t, states.map(([id]) => order(id)), async id => {
    const [, status, merchantStatus, coveredTaxRefundCount] = states.find(row => row[0] === id)
    return { ...detail(id), status, merchantStatus, coveredTaxRefundCount, taxRefundCount: 1 }
  })
  await view.load()
  for (const [id, , merchantStatus, , label, tone] of states) {
    const row = view.records.value.find(item => item.order.id === id)
    assert.equal(view.statusLabel(row.detail), label)
    assert.equal(view.statusType(row.detail), tone)
    view.queryModel.value.status = merchantStatus; view.search()
    assert.deepEqual(view.filteredRecords.value.map(item => item.order.id), [id])
  }
  assert.deepEqual(view.queryFields.find(field => field.key === 'status').options,
    states.map(([, , value, , label]) => ({ value, label })).sort((a, b) =>
      ['WAITING_UPLOAD', 'DOCUMENT_UPLOADED', 'DECLARING', 'CUSTOMS_COMPLETED'].indexOf(a.value)
      - ['WAITING_UPLOAD', 'DOCUMENT_UPLOADED', 'DECLARING', 'CUSTOMS_COMPLETED'].indexOf(b.value)))
  view.queryModel.value.status = 'WAITING_CUSTOMER_DOCUMENTS'; view.search()
  assert.equal(view.filteredRecords.value.length, 0, 'container statuses are not customer filter values')
  view.queryModel.value.status = ''; view.search()
  assert.equal(view.filteredRecords.value.length, 4)
  assert.equal(calls.length, 4, 'filtering does not requery or infer status from coverage')
})

test('dialog update refreshes customer status and active filter without inferring from container status', async t => {
  const { view } = harness(t, [order('one')], async id => ({ ...detail(id), status: 'WAITING_CUSTOMER_DOCUMENTS', merchantStatus: 'WAITING_UPLOAD' }))
  await view.load(); view.openDetail(view.records.value[0])
  view.queryModel.value.status = 'WAITING_UPLOAD'; view.search()
  view.updateDetail({ ...detail('one'), status: 'WAITING_CUSTOMER_DOCUMENTS', merchantStatus: 'DOCUMENT_UPLOADED', coveredTaxRefundCount: 1, taxRefundCount: 1 })
  assert.equal(view.filteredRecords.value.length, 0)
  view.queryModel.value.status = 'DOCUMENT_UPLOADED'; view.search()
  assert.equal(view.filteredRecords.value.length, 1)
  assert.equal(view.statusLabel(view.filteredRecords.value[0].detail), '资料已上传')
  assert.equal(view.statusLabel({ status: 'COMPLETED', coveredTaxRefundCount: 1, taxRefundCount: 1 }), '—')
  assert.equal(view.statusType({ status: 'COMPLETED' }), 'info')
})