import request from '@/utils/http'

function normalizeText(value) {
  return typeof value === 'string' ? value.trim() : value
}

function hasValue(value) {
  return value !== '' && value !== null && value !== undefined
}

function normalizeIds(ids) {
  if (Array.isArray(ids)) {
    return ids
      .map((id) => String(id).trim())
      .filter(Boolean)
      .join(',')
  }
  if (ids === null || ids === undefined) {
    return ''
  }
  return String(ids).trim()
}

function normalizeNumber(value, fallback = void 0) {
  if (!hasValue(value)) {
    return fallback
  }
  const parsed = Number(value)
  return Number.isNaN(parsed) ? fallback : parsed
}

function toOptionalNumber(value) {
  return hasValue(value) ? Number(value) : void 0
}

function toNumberOr(value, fallback) {
  return hasValue(value) ? Number(value) : fallback
}

function buildNumberField(key, value) {
  return hasValue(value) ? { [key]: Number(value) } : {}
}

function normalizeTypeIds(typeIds = []) {
  if (Array.isArray(typeIds)) {
    return typeIds
      .map((item) => normalizeNumber(item, void 0))
      .filter((item) => item !== void 0 && item !== null)
  }

  if (typeof typeIds === 'string' && typeIds.trim()) {
    return typeIds
      .split(',')
      .map((item) => normalizeNumber(item, void 0))
      .filter((item) => item !== void 0 && item !== null)
  }

  return []
}

function filterParams(params = {}, ignoredKeys = []) {
  return Object.fromEntries(
    Object.entries(params)
      .filter(([key, value]) => {
        if (ignoredKeys.includes(key)) return false
        if (value === undefined || value === null) return false
        if (typeof value === 'string' && value.trim() === '') return false
        return true
      })
      .map(([key, value]) => [key, normalizeText(value)])
  )
}

export function buildLocPageParams(params = {}) {
  return {
    current: params.current || 1,
    pageSize: params.pageSize || params.size || 20,
    ...filterParams(params, ['current', 'pageSize', 'size'])
  }
}

export function buildLocSearchParams(params = {}) {
  const searchParams = {
    condition: normalizeText(params.condition),
    warehouseId: toOptionalNumber(params.warehouseId),
    areaId: toOptionalNumber(params.areaId),
    code: normalizeText(params.code),
    useStatus: normalizeText(params.useStatus),
    row: toOptionalNumber(params.row),
    col: toOptionalNumber(params.col),
    lev: toOptionalNumber(params.lev),
    channel: toOptionalNumber(params.channel),
    status: toOptionalNumber(params.status),
    barcode: normalizeText(params.barcode),
    memo: normalizeText(params.memo)
  }

  return Object.fromEntries(Object.entries(searchParams).filter(([, value]) => hasValue(value)))
}

export function buildLocSavePayload(formData = {}) {
  return {
    ...buildNumberField('id', formData.id),
    ...buildNumberField('version', formData.version),
    ...buildNumberField('warehouseId', formData.warehouseId),
    ...buildNumberField('areaId', formData.areaId),
    code: normalizeText(formData.code) || '',
    typeIds: normalizeTypeIds(formData.typeIds),
    ...buildNumberField('flagLogic', formData.flagLogic),
    fucAtrrs: normalizeText(formData.fucAtrrs) || '',
    barcode: normalizeText(formData.barcode) || '',
    unit: normalizeText(formData.unit) || '',
    ...buildNumberField('length', formData.length),
    ...buildNumberField('height', formData.height),
    ...buildNumberField('width', formData.width),
    ...buildNumberField('row', formData.row),
    ...buildNumberField('col', formData.col),
    ...buildNumberField('lev', formData.lev),
    ...buildNumberField('channel', formData.channel),
    ...buildNumberField('maxParts', formData.maxParts),
    ...buildNumberField('maxPack', formData.maxPack),
    useStatus: normalizeText(formData.useStatus) || 'O',
    ...buildNumberField('flagLabelMange', formData.flagLabelMange),
    locAttrs: normalizeText(formData.locAttrs) || '',
    status: toNumberOr(formData.status, 1),
    memo: normalizeText(formData.memo) || ''
  }
}

export function fetchLocPage(params = {}) {
  return request.post({
    url: '/loc/page',
    params: buildLocPageParams(params)
  })
}

export function fetchGetLocDetail(id) {
  return request.get({
    url: `/loc/${id}`
  })
}

export function fetchGetLocMany(ids) {
  return request.post({
    url: `/loc/many/${normalizeIds(ids)}`
  })
}

export function fetchSaveLoc(params = {}) {
  return request.post({
    url: '/loc/save',
    params: buildLocSavePayload(params)
  })
}

export function fetchUpdateLoc(params = {}) {
  return request.post({
    url: '/loc/update',
    params: buildLocSavePayload(params)
  })
}

export function fetchDeleteLoc(ids) {
  return request.post({
    url: `/loc/remove/${normalizeIds(ids)}`
  })
}

export function fetchLocQuery(condition = '') {
  return request.post({
    url: '/loc/query',
    params: {
      condition: normalizeText(condition)
    }
  })
}

export function fetchLocTypeList() {
  return request.post({
    url: '/locType/list',
    data: {}
  })
}

export function fetchWarehouseList() {
  return request.post({
    url: '/warehouse/list',
    data: {}
  })
}

export function fetchWarehouseAreasList() {
  return request.post({
    url: '/warehouseAreas/list',
    data: {}
  })
}

export async function fetchExportLocReport(payload = {}, options = {}) {
  return fetch(`${import.meta.env.VITE_API_URL}/loc/export`, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      ...(options.headers || {})
    },
    body: JSON.stringify(payload)
  })
}