import request from '@/utils/request'

/** 查询产品列表 */
export function listProduct(query) {
  return request({
    url: '/price/product/list',
    method: 'get',
    params: query
  })
}

/** 查询产品详情 */
export function getProduct(productId) {
  return request({
    url: '/price/product/' + productId,
    method: 'get'
  })
}

/** 查询产品国家明细（优先 productId，绑定到具体产品版本行） */
export function listProductCountries(productCode, effectiveDate, productId) {
  const params = {}
  if (effectiveDate) params.effectiveDate = effectiveDate
  if (productId) params.productId = productId
  return request({
    url: '/price/product/' + productCode + '/countries',
    method: 'get',
    params
  })
}

/** 修改产品国家明细行（重量段/运费/挂号费/尺寸/尾程/时效/生效失效日期） */
export function updateProductCountry(data) {
  return request({
    url: '/price/product/country',
    method: 'put',
    data: data
  })
}

/** 新增产品 */
export function addProduct(data) {
  return request({
    url: '/price/product',
    method: 'post',
    data: data
  })
}

/** 修改产品 */
export function updateProduct(data) {
  return request({
    url: '/price/product',
    method: 'put',
    data: data
  })
}

/** 删除产品 */
export function delProduct(productIds) {
  return request({
    url: '/price/product/' + productIds,
    method: 'delete'
  })
}

export function getProductImportTask(taskId) {
  return request({
    url: '/price/product/import/task/' + taskId,
    method: 'get'
  })
}

function pickImportTaskId(res) {
  if (!res) return null
  const d = res.data
  if (d && typeof d === 'object' && d.taskId) return String(d.taskId)
  if (typeof d === 'string' && d.trim()) return d.trim()
  if (typeof res.msg === 'string') {
    const m = res.msg.trim()
    if (/^[a-f0-9]{32}$/i.test(m)) return m
    if (/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/i.test(m)) {
      return m.replace(/-/g, '')
    }
  }
  return null
}

async function pollProductImportTask(taskId, onProgress) {
  const started = Date.now()
  const maxMs = 30 * 60 * 1000
  while (Date.now() - started < maxMs) {
    const res = await getProductImportTask(taskId)
    const task = res.data || {}
    if (typeof onProgress === 'function') {
      onProgress(task)
    }
    if (task.status === 'SUCCESS') {
      return { task }
    }
    if (task.status === 'FAIL') {
      const err = new Error(task.error || task.message || 'import failed')
      err.task = task
      throw err
    }
    await new Promise(resolve => setTimeout(resolve, 800))
  }
  throw new Error('import timeout')
}

/**
 * Async all-country product import; poll until done.
 * @param {File|Blob} file
 * @param {(task: object) => void} [onProgress]
 */
export async function importProductExcelAsync(file, onProgress) {
  const formData = new FormData()
  formData.append('file', file)
  const submitRes = await request({
    url: '/price/product/importData?updateSupport=0',
    method: 'post',
    data: formData,
    headers: { 'Content-Type': 'multipart/form-data' }
  })
  const taskId = pickImportTaskId(submitRes)
  if (!taskId) {
    throw new Error('missing import taskId')
  }
  return pollProductImportTask(taskId, onProgress)
}

/**
 * Async single-country product import; poll until done.
 * @param {File|Blob} file
 * @param {string} countryCode
 * @param {(task: object) => void} [onProgress]
 */
export async function importProductCountryExcelAsync(file, countryCode, onProgress) {
  const formData = new FormData()
  formData.append('file', file)
  const params = new URLSearchParams()
  params.set('countryCode', countryCode)
  const submitRes = await request({
    url: '/price/product/importCountryData?' + params.toString(),
    method: 'post',
    data: formData,
    headers: { 'Content-Type': 'multipart/form-data' }
  })
  const taskId = pickImportTaskId(submitRes)
  if (!taskId) {
    throw new Error('missing import taskId')
  }
  return pollProductImportTask(taskId, onProgress)
}