import { string } from 'alga-js'
import refreshTokenHelper from "../../utils/refreshTokenHelper"
import forceLogoutHelper from "../../utils/forceLogoutHelper"
import errorHandlingHelper from "../../utils/errorHandlingHelper"
import getTokenHelper from "../../utils/getTokenHelper"
import fetchHelper from "../../utils/fetchHelper"

const handleFunc = async (event: any, authToken: any = null) => {
  let data: any = {}
  const token = authToken ?? await getTokenHelper(event)
  const body = await readBody(event)
  const searchTerm = body?.search || ''

  if (!searchTerm) {
    throw createError({
      statusCode: 400,
      statusMessage: 'Search term is required'
    })
  }

  // Build filter to search by Value, SKU, UPC, Name, or MPN — all partial, case-insensitive
  const escapedTerm = searchTerm.replace(/'/g, "''")
  const lowerTerm = escapedTerm.toLowerCase()
  const strippedTerm = lowerTerm.replace(/[\s-]+/g, '')

  const buildFilter = (term: string) => string.urlEncode(
    `(contains(tolower(Value),'${term}') OR contains(tolower(SKU),'${term}') OR contains(tolower(UPC),'${term}') OR contains(tolower(MPN),'${term}') OR contains(tolower(fnsku),'${term}') OR contains(tolower(Name),'${term}')) AND (isActive eq true)`
  )

  let res: any = await fetchHelper(
    event,
    `models/m_product?$filter=${buildFilter(lowerTerm)}&$top=50`,
    'GET',
    token,
    null
  )

  // No match on the raw term → retry with separators stripped so a scanned
  // barcode "PZN-15821889" / "PZN - 15821889" finds stored "PZN15821889".
  if ((!res?.records || res.records.length === 0) && strippedTerm && strippedTerm !== lowerTerm) {
    res = await fetchHelper(
      event,
      `models/m_product?$filter=${buildFilter(strippedTerm)}&$top=50`,
      'GET',
      token,
      null
    )
  }

  if (res?.records && res.records.length > 0) {
    // Map products with necessary fields for label printing
    data.records = res.records.map((product: any) => ({
      id: product.id,
      Name: product.Name,
      Value: product.Value,
      SKU: product.SKU,
      UPC: product.UPC,
      MPN: product.MPN,
      ASIN: product.ASIN,
      FNSKU: product.fnsku || null,
      labelPrinterId: product.labelprinter?.id || null,
      labelPrinter: product.labelprinter?.identifier || null,
      organizationId: product.AD_Org_ID?.id || product.AD_Org_ID,
      organization: product.AD_Org_ID?.identifier || product.AD_Org_ID?.Name
    }))
  } else {
    data.records = []
  }

  return data
}

export default defineEventHandler(async (event) => {
  // Auth-only retry: a business 404 no longer triggers a token refresh.
  return await withAuthRetry(event, handleFunc)
})