const MODULE = 'phase3-container-customs-fixture'
const OPTIONS = { scenario: 'phase3-container-customs-mixed-fixture', deploymentBlocker: true }
const PLATFORM = '/api/platform/v1/customs/loading-plans'
const MERCHANT = '/api/merchant/v1/customs'

const id = (value) => value == null ? '' : String(value)
const success = (response) => response?.http === 200 && String(response?.body?.code) === '200'
const key = (context, value) => `${context.marker}-mixed-customs-${value}`.slice(0, 128)

async function raw(context, method, path, body, token, headers = {}) {
  try {
    const response = await fetch(`${context.options.gateway}${path}`, {
      method,
      headers: {
        Accept: 'application/json', Authorization: token ? `Bearer ${token}` : '',
        ...(body === undefined || body instanceof FormData ? {} : { 'Content-Type': 'application/json; charset=utf-8' }),
        ...headers,
      },
      body: body === undefined ? undefined : body instanceof FormData ? body : JSON.stringify(body),
      signal: AbortSignal.timeout(120_000),
    })
    const bytes = new Uint8Array(await response.arrayBuffer())
    const contentType = response.headers.get('content-type') || ''
    let payload = null
    if (contentType.includes('json')) {
      try { payload = JSON.parse(new TextDecoder().decode(bytes)) } catch { /* bounded binary evidence */ }
    }
    return {
      method, path, http: response.status, body: payload,
      raw: payload == null && contentType.includes('text') ? new TextDecoder().decode(bytes).slice(0, 500) : null,
      bytes, contentType,
      requestId: payload?.requestId || response.headers.get('x-request-id'),
      traceId: payload?.traceId || response.headers.get('x-trace-id'),
    }
  } catch (error) {
    return { method, path, http: 0, body: null, bytes: new Uint8Array(), raw: String(error) }
  }
}

async function loginMerchant(context) {
  const account = context.context?.merchantQualificationFixture
  const username = account?.username || process.env.MERCHANT_TEST_USERNAME || ''
  const password = account?.password || process.env.MERCHANT_TEST_PASSWORD || ''
  if (!username || !password) throw new Error('缺少客户登录凭据')
  const response = await context.request('POST', '/api/auth/login', {
    loginId: username, password,
  }, '')
  const token = success(response) ? response.body?.data?.accessToken : null
  if (!token) throw new Error(`本轮客户登录失败: requestId=${response?.requestId || 'missing'}, traceId=${response?.traceId || 'missing'}`)
  return token
}

function routes(context, merchantToken, customerTokens = new Map()) {
  const tokenFor = (customer) => customerTokens.get(id(customer.customerId)) || merchantToken
  const binary = (method, path, token = context.token) => raw(context, method, path, undefined, token)
  const multipart = (path, fields, file, token, idempotencyKey) => {
    const form = new FormData()
    for (const [name, value] of Object.entries(fields || {})) {
      const values = Array.isArray(value) ? value : [value]
      for (const item of values) if (item != null) form.append(name, String(item))
    }
    form.append('file', new Blob([file.content], { type: file.contentType }), file.fileName)
    return raw(context, 'POST', path, form, token, { 'Idempotency-Key': idempotencyKey })
  }
  return {
    version: 1,
    platformDetail: (ctx, value) => ctx.request('GET', `${PLATFORM}/${encodeURIComponent(id(value.loadingPlanId))}`),
    merchantDetail: (ctx, fixture, customer, token = tokenFor(customer)) => ctx.request('GET',
      `${MERCHANT}/orders/${encodeURIComponent(id(customer.orderId))}`, undefined, token),
    merchantPlatformDetail: (ctx, fixture) => ctx.request('GET',
      `${PLATFORM}/${encodeURIComponent(id(fixture.loadingPlanId))}`, undefined, merchantToken),
    merchantUploadDocument: (ctx, fixture, customer, file, idempotencyKey) => multipart(
      `${MERCHANT}/loading-plans/${encodeURIComponent(id(fixture.loadingPlanId))}/documents/upload?${customer.inboundIds.map((value) => `inboundIds=${encodeURIComponent(id(value))}`).join('&')}`,
      {}, file, tokenFor(customer), idempotencyKey),
    merchantReplaceDocument: (ctx, fixture, customer, file, idempotencyKey) => multipart(
      `${MERCHANT}/documents/${encodeURIComponent(id(file.documentId))}/upload?expectedVersion=${Number(file.expectedVersion)}&${customer.inboundIds.map((value) => `inboundIds=${encodeURIComponent(id(value))}`).join('&')}`,
      {}, file, tokenFor(customer), idempotencyKey),
    merchantUpdateScope: (ctx, fixture, customer, request, idempotencyKey) => ctx.request('PUT',
      `${MERCHANT}/documents/${encodeURIComponent(id(request.documentId))}/inbounds`, {
        inboundIds: request.inboundIds.map(id), expectedVersion: Number(request.expectedVersion),
      }, tokenFor(customer), { 'Idempotency-Key': idempotencyKey }),
    merchantDeleteDocument: (ctx, fixture, customer, request, idempotencyKey) => ctx.request('DELETE',
      `${MERCHANT}/documents/${encodeURIComponent(id(request.documentId))}?expectedVersion=${Number(request.expectedVersion)}`,
      undefined, tokenFor(customer), { 'Idempotency-Key': idempotencyKey }),
    merchantConfirmReceipt: (ctx, fixture, customer, request, idempotencyKey) => ctx.request('POST',
      `${MERCHANT}/documents/${encodeURIComponent(id(request.documentId))}/receipt/${request.confirm === false ? 'reject' : 'confirm'}`,
      { expectedVersion: Number(request.expectedVersion), confirm: request.confirm !== false, remark: request.remark || '' },
      tokenFor(customer), { 'Idempotency-Key': idempotencyKey }),
    platformStart: (ctx, fixture, request, idempotencyKey) => ctx.request('POST',
      `${PLATFORM}/${encodeURIComponent(id(fixture.loadingPlanId))}/start`, request, ctx.token,
      { 'Idempotency-Key': idempotencyKey }),
    platformSendInitialToBroker: (ctx, fixture, request, idempotencyKey) => ctx.request('POST',
      `${PLATFORM}/${encodeURIComponent(id(fixture.loadingPlanId))}/send-to-broker`, request, ctx.token,
      { 'Idempotency-Key': idempotencyKey }),
    platformUploadReceipt: (ctx, fixture, request, idempotencyKey) => multipart(
      `${PLATFORM}/documents/${encodeURIComponent(id(request.documentId))}/receipt/upload?expectedVersion=${Number(request.expectedVersion)}`,
      {}, request, ctx.token, idempotencyKey),
    platformSubmitToBroker: (ctx, fixture, request, idempotencyKey) => ctx.request('POST',
      `${PLATFORM}/${encodeURIComponent(id(fixture.loadingPlanId))}/submit-to-broker`, request, ctx.token,
      { 'Idempotency-Key': idempotencyKey }),
    platformDeclarationBatches: (ctx, fixture) => ctx.request('GET',
      `${PLATFORM}/${encodeURIComponent(id(fixture.loadingPlanId))}/declaration-batches`),
    platformCreateDeclaration: (ctx, fixture, request, idempotencyKey) => ctx.request('POST',
      `${PLATFORM}/${encodeURIComponent(id(fixture.loadingPlanId))}/declaration-batches`, request, ctx.token,
      { 'Idempotency-Key': idempotencyKey }),
    platformSubmitDeclaration: (ctx, fixture, batchId, request, idempotencyKey) => ctx.request('POST',
      `${PLATFORM}/declaration-batches/${encodeURIComponent(id(batchId))}/submit`, request, ctx.token,
      { 'Idempotency-Key': idempotencyKey }),
    platformClearanceResults: (ctx, fixture, batchId) => ctx.request('GET',
      `${PLATFORM}/declaration-batches/${encodeURIComponent(id(batchId))}/results`),
    platformRecordClearance: (ctx, fixture, batchId, request, idempotencyKey) => ctx.request('POST',
      `${PLATFORM}/declaration-batches/${encodeURIComponent(id(batchId))}/results`, request, ctx.token,
      { 'Idempotency-Key': idempotencyKey }),
    platformResolveClearance: (ctx, fixture, resultId, request, idempotencyKey) => ctx.request('POST',
      `${PLATFORM}/clearance-results/${encodeURIComponent(id(resultId))}/resolve`, request, ctx.token,
      { 'Idempotency-Key': idempotencyKey }),
    platformComplete: (ctx, fixture, request, idempotencyKey) => ctx.request('POST',
      `${PLATFORM}/${encodeURIComponent(id(fixture.loadingPlanId))}/complete-all-buy`, request, ctx.token,
      { 'Idempotency-Key': idempotencyKey }),
    platformUploadFinal: (ctx, fixture, request, idempotencyKey) => multipart(
      `${PLATFORM}/documents/${encodeURIComponent(id(request.documentId))}/final/upload?expectedVersion=${Number(request.expectedVersion)}`,
      {}, request, ctx.token, idempotencyKey),
    platformDownloadReceipt: (ctx, fixture, request) => binary('GET',
      `${PLATFORM}/documents/${encodeURIComponent(id(request.documentId))}/receipt/download`),
    platformDownloadFinal: (ctx, fixture, request) => binary('GET',
      `${PLATFORM}/documents/${encodeURIComponent(id(request.documentId))}/final/download`),
    merchantDownloadReceipt: (ctx, fixture, customer, request) => binary('GET',
      `${MERCHANT}/documents/${encodeURIComponent(id(request.documentId))}/receipt/download`,
      tokenFor(customer)),
    merchantDownloadFinal: (ctx, fixture, customer, request) => binary('GET',
      `${MERCHANT}/documents/${encodeURIComponent(id(request.documentId))}/final/download`,
      tokenFor(customer)),
    buyDeclarationXlsx: async (ctx, request) => {
      const created = await ctx.request('POST', '/api/platform/v1/files/export-tasks', {
        exportType: 'LOADING_LIST_BUY_DECLARATION_ITEMS', format: 'XLSX',
        taskName: `${ctx.marker}-mixed-buy-declaration`,
        parameters: { loadingPlanId: id(request.loadingPlanId) },
      })
      let task = success(created) ? created.body?.data : null
      const taskId = id(task?.id)
      for (let attempt = 0; taskId && attempt < 30 && !['SUCCEEDED', 'FAILED', 'EXPIRED'].includes(task?.status); attempt += 1) {
        await new Promise((resolve) => setTimeout(resolve, 1_000))
        const detail = await ctx.request('GET', `/api/platform/v1/files/export-tasks/${encodeURIComponent(taskId)}`)
        if (success(detail)) task = detail.body.data
      }
      if (!taskId || task?.status !== 'SUCCEEDED') return { ...created, task, bytes: new Uint8Array() }
      const download = await ctx.requestBinary('GET', `/api/platform/v1/files/export-tasks/${encodeURIComponent(taskId)}/download`)
      return { ...download, task, taskId, createResponse: created }
    },
    outboundState: async (ctx, fixture) => {
      const detail = await ctx.request('GET', `/api/platform/v1/first-leg/outbound-dispatches/${encodeURIComponent(id(fixture.containerBookingId))}`)
      const aggregate = success(detail) ? detail.body?.data?.aggregate : null
      const history = success(detail) ? detail.body?.data?.timeline || [] : []
      return {
        ...detail,
        body: { ...detail.body, data: {
          customsStatus: fixture.customsStatus,
          departed: aggregate?.dispatchStatus === 'WAITING_FOR_LOADING',
          retryable: aggregate?.dispatchStatus === 'READY_FOR_DISPATCH',
          departureHistoryCount: history.filter((item) => item.module === 'OUTBOUND_DISPATCH'
            && item.action === 'CONFIRM_DISPATCH').length,
          aggregate, timeline: history,
        } },
      }
    },
    satisfyOutboundPrerequisites: async () => undefined,
  }
}

async function addSecondRefundCustomer(context) {
  const source = context.createdResources.phase3Loading
  const secondary = Object.create(context)
  secondary.marker = `${context.marker}-CUSTOMER-B`
  secondary.options = { ...context.options, customerName: '' }
  secondary.context = { ...context.context, orderProfile: {
    ...(context.context.orderProfile || {}), taxMode: 'TAX_REFUND', fulfillmentType: 'STANDARD',
  }, orderFulfillmentType: 'STANDARD' }
  secondary.createdResources = {}
  const qualification = await import('./merchant-qualification-fixture.mjs')
  await qualification.run(secondary, { publishEnvironment: false })
  const account = secondary.context.merchantQualificationFixture
  // orders.mjs captures its credentials at import time. A distinct module instance captures
  // this customer's credentials without changing the primary customer's cached producer.
  const saved = ['MERCHANT_TEST_USERNAME', 'MERCHANT_TEST_PASSWORD'].map((name) =>
    [name, Object.hasOwn(process.env, name), process.env[name]])
  let orders
  try {
    process.env.MERCHANT_TEST_USERNAME = account.username
    process.env.MERCHANT_TEST_PASSWORD = account.password
    orders = await import(`./orders.mjs?customsCustomer=${encodeURIComponent(account.tenantId)}`)
  } finally {
    for (const [name, present, value] of saved) {
      if (present) process.env[name] = value
      else delete process.env[name]
    }
  }
  await secondary.executeModule(`${MODULE}-customer-b-orders`, () => orders.run(secondary))
  const measurement = await import('./inbound-measurement.mjs')
  await secondary.executeModule(`${MODULE}-customer-b-measurement`, () => measurement.run(secondary))
  const inbound = secondary.createdResources.inboundMeasurement
  if (!inbound?.inboundId || id(inbound.tenantId) !== id(account.tenantId)
      || id(inbound.tenantId) === id(source.tenantId)) throw new Error('第二退税客户未生成独立入库单')
  const login = await secondary.request('POST', '/api/auth/login', {
    loginId: account.username, password: account.password,
  }, '')
  if (!success(login) || !login.body?.data?.accessToken) throw new Error('第二退税客户登录失败')
  const smart = '/api/platform/v1/first-leg/smart-loading'
  const candidatesResponse = await context.request('GET', `${smart}/candidates?${new URLSearchParams({
    bookingId: id(source.containerBookingId), warehouseId: id(source.warehouseId),
  })}`)
  const candidates = context.apiSuccess(MODULE, '第二退税客户读取原柜正式可装候选', candidatesResponse, '', OPTIONS)
  const candidate = (Array.isArray(candidates) ? candidates : candidates?.records || []).find((item) =>
    id(item.inboundId) === id(inbound.inboundId) && id(item.accountId) === id(account.tenantId)
      && item.inboundDetailId && Number(item.availablePackageCount) > 0)
  if (!candidate) throw new Error('第二退税客户在原柜没有正式可装候选，禁止借历史票')
  const planResponse = await context.request('GET', `${smart}/plans/${id(source.loadingPlanId)}`)
  const plan = context.apiSuccess(MODULE, '加入第二客户前回查原柜计划', planResponse, '', OPTIONS)
  const assignedResponse = await context.request('POST', `${smart}/plans/${id(source.loadingPlanId)}/assignments`, {
    inboundId: id(inbound.inboundId), inboundDetailId: id(candidate.inboundDetailId), packageCount: 1,
    expectedVersion: Number(plan.version), operationId: key(context, 'customer-b-assign'),
  })
  const assigned = context.apiSuccess(MODULE, '第二退税客户正式分配到同柜', assignedResponse, '', OPTIONS)
  const item = assigned?.items?.find((value) => id(value.inboundId) === id(inbound.inboundId))
  const taskPath = `/api/platform/v1/first-leg/pda-loading/tasks/${id(source.canonicalPdaTaskId)}`
  const taskResponse = await context.request('GET', `${taskPath}?warehouseId=${id(source.warehouseId)}`)
  const task = context.apiSuccess(MODULE, '同柜新增第二客户后回查原PDA任务', taskResponse, '', OPTIONS)
  const taskItem = task?.items?.find((value) => id(value.loadingPlanItemId) === id(item?.id))
  const inventoryResponse = await context.request('GET', `${taskPath}/inventory-snapshot?warehouseId=${id(source.warehouseId)}`)
  const inventory = context.apiSuccess(MODULE, '第二客户刷新正式拣货库存快照', inventoryResponse, '', OPTIONS)
  if (!taskItem || !inventory?.snapshotToken) throw new Error('第二客户缺少正式PDA明细或库存快照')
  const pickedResponse = await context.request('POST', `${taskPath}/batch`, {
    warehouseId: id(source.warehouseId), loadingPlanId: id(source.loadingPlanId),
    containerBookingId: id(source.containerBookingId), expectedVersion: Number(task.version),
    inventorySnapshotToken: inventory.snapshotToken,
    items: [{ itemId: id(taskItem.id), action: 'PICK', pickedPackageCount: 1, version: Number(taskItem.version) }],
  }, context.pdaToken || context.token, { 'Idempotency-Key': key(context, 'customer-b-pick') })
  const picked = context.apiSuccess(MODULE, '同柜第二客户完成正式PDA拣货', pickedResponse, '', OPTIONS)
  context.assert(MODULE, '第二客户加入后原柜原任务保持且恢复待完成', pickedResponse,
    id(picked?.id) === id(source.canonicalPdaTaskId) && picked?.workflowStatus === 'AWAITING_REVIEW'
      && id(picked?.loadingPlanId) === id(source.loadingPlanId)
      && id(picked?.containerBookingId) === id(source.containerBookingId),
    `workflow=${picked?.workflowStatus || 'missing'}`, OPTIONS)
  source.pdaTaskVersion = Number(picked?.version)
  const { stableLoadedCartonMarks } = await import('./phase3-loading.mjs')
  source.cartonMarks = stableLoadedCartonMarks(picked?.items)
  return { customerId: id(account.tenantId), sessionToken: login.body.data.accessToken }
}

export async function withPlatformBookingScope(context, runLoading) {
  const name = 'phase3LoadingBookingScope'
  const present = Object.hasOwn(context.context, name)
  const previous = context.context[name]
  context.context[name] = 'PLATFORM'
  try {
    return await runLoading()
  } finally {
    if (present) context.context[name] = previous
    else delete context.context[name]
  }
}

export async function prepare(context) {
  if (context.options?.fixedCustomerId && !context.options.fixedSecondaryCustomer) throw new Error('混合报关柜需要第二个固定客户，停止订单及装柜造数')
  if (context.options?.fixedCustomerId) {
    const { requireFixedSecondaryCustomer } = await import('./merchant-qualification-fixture.mjs')
    requireFixedSecondaryCustomer(context.options)
  }
  const outerMarker = context.marker
  const isolatedResourceKeys = ['phase3Loading', 'phase3LoadingCompletedProducer', 'orchestrationFixtures']
  const isolatedResourceSnapshot = new Map(isolatedResourceKeys.map((name) => [name, {
    present: Object.hasOwn(context.createdResources, name), value: context.createdResources[name],
  }]))
  const restoreIsolatedResources = () => {
    for (const [name, snapshot] of isolatedResourceSnapshot) {
      if (snapshot.present) context.createdResources[name] = snapshot.value
      else delete context.createdResources[name]
    }
  }
  const restore = await context.preparePhase3LoadingFixture('-CUSTOMS-MIXED', false, {
    primary: 'BUY_DECLARATION', incremental: 'TAX_REFUND',
  })
  try {
  const executionMarker = `${outerMarker}-CUSTOMS-MIXED`
  context.marker = executionMarker
  if (context.createdResources?.orchestrationFixtures?.phase3Loading) {
    context.createdResources.orchestrationFixtures.phase3Loading.marker = executionMarker
  }
  if (context.createdResources?.orchestrationFixtures?.phase3LoadingIncremental) {
    context.createdResources.orchestrationFixtures.phase3LoadingIncremental.marker = executionMarker
  }
  const loading = await import('./phase3-loading.mjs')
  await withPlatformBookingScope(context, () =>
    context.executeModule(`${MODULE}-loading`, () => loading.run(context)))
  const secondCustomer = await addSecondRefundCustomer(context)
  const finalize = await import('./phase3-loading-finalize.mjs')
  await context.executeModule(`${MODULE}-finalize`, () => finalize.run(context))

  const source = context.createdResources?.phase3Loading
  if (!source?.loadingPlanId || !source?.containerBookingId || source?.finalStatus !== 'LOADED') {
    context.marker = outerMarker
    restore()
    restoreIsolatedResources()
    throw new Error(`混合柜未进入LOADED: planId=${id(source?.loadingPlanId) || 'missing'}, status=${source?.finalStatus || 'missing'}`)
  }
  const platform = await context.request('GET', `${PLATFORM}/${encodeURIComponent(id(source.loadingPlanId))}`)
  const customs = success(platform) ? platform.body.data : null
  const plan = await context.request('GET', `/api/platform/v1/first-leg/loading-plans/${encodeURIComponent(id(source.loadingPlanId))}`)
  const planItems = success(plan) && Array.isArray(plan.body?.data?.items) ? plan.body.data.items : []
  const inbounds = Array.isArray(customs?.inbounds) ? customs.inbounds : []
  const buy = inbounds.filter((item) => item.taxMode === 'BUY_DECLARATION')
  const refund = inbounds.filter((item) => item.taxMode === 'TAX_REFUND')
  context.assert(MODULE, '正式LOADED计划同时包含BUY与TAX实际入仓票', platform,
    buy.length > 0 && refund.length > 0 && inbounds.every((item) => /^\d{16,}$/.test(id(item.inboundId))),
    `buy=${buy.length}, tax=${refund.length}, inbounds=${inbounds.length}`, OPTIONS)
  if (!buy.length || !refund.length) {
    context.marker = outerMarker
    restore()
    restoreIsolatedResources()
    throw new Error(`正式装柜API未形成混合柜: buy=${buy.length}, tax=${refund.length}`)
  }
  const merchantToken = await loginMerchant(context)
  const customers = [...new Set(refund.map((item) => id(item.tenantId)))].map((customerId) => {
    const own = refund.filter((item) => id(item.tenantId) === customerId)
    return {
    customerId, orderId: id(own[0].orderId),
    inboundIds: own.map((item) => id(item.inboundId)),
    document: {
      fileName: `${context.marker}-tax-refund.customblob`, contentType: 'application/octet-stream',
      content: Uint8Array.from([0x54, 0x41, 0x58]),
    },
    replacement: {
      fileName: `${context.marker}-tax-refund-v2.customblob`, contentType: 'application/octet-stream',
      content: Uint8Array.from([0x54, 0x41, 0x58, 0x32]),
    },
    updatedInboundIds: own.map((item) => id(item.inboundId)),
  } })
  if (customers.length < 2) throw new Error('同柜未形成两个实际退税客户')
  const buyInboundIds = new Set(buy.map((item) => id(item.inboundId)))
  const planBuyRows = planItems.filter((item) => buyInboundIds.has(id(item.inboundId))).length
  const expectedBuyRows = planBuyRows > 0 ? planBuyRows : buy.length
  context.marker = outerMarker
  context.createdResources.phase3ContainerCustomsFixtures = {
    marker: outerMarker, requestedKinds: ['MIXED'],
    containers: [{
      kind: 'MIXED', marker: outerMarker, status: 'LOADED', autoDispatchMode: 'IMMEDIATE',
      loadingPlanId: id(source.loadingPlanId), containerBookingId: id(source.containerBookingId),
      oceanBookingId: id(source.oceanBookingId), containerNo: source.containerNo,
      inbounds: inbounds.map((item) => ({
        inboundId: id(item.inboundId), orderId: id(item.orderId), customerId: id(item.tenantId),
        inboundCode: item.inboundCode, taxMode: item.taxMode,
      })),
      customers, expectedBuyRows, buyInboundIds: [...buyInboundIds], customsStatus: customs.status,
    }],
  }
  context.context.phase3ContainerCustomsRoutes = routes(context, merchantToken, new Map([[secondCustomer.customerId, secondCustomer.sessionToken]]))
  return () => {
    delete context.context.phase3ContainerCustomsRoutes
    context.marker = outerMarker
    restore()
    restoreIsolatedResources()
  }
  } catch (error) {
    delete context.context.phase3ContainerCustomsRoutes
    context.marker = outerMarker
    restore()
    restoreIsolatedResources()
    throw error
  }
}