import { isCorpGoodsType } from './detail'

export type UploadedImage = {
  id: string
  url: string
  preview: string
}

export type OrderLike = {
  order_id?: string
  goods_type?: string
  goods_name?: string
  entity_name?: string
  entity_phone?: string
  entity_extra?: Record<string, unknown>
  extra?: Record<string, any>
  [key: string]: any
}

export type ResubmitValues = {
  entity_name?: string
  entity_address_name?: string
  entity_address?: string
  entity_phone?: string
  entity_phone2?: string
}

const OMIT_EXTRA_KEYS = new Set([
  'origin_price',
  'qrCodeImgUrl',
  'remoteIp',
  'weixinAppId',
  'entity_storefront_image',
  'entity_business_license_image',
  'entity_storefront_image_url',
  'entity_business_license_image_url',
  'goods_param',
])

function splitValues (value: unknown) {
  if (value === undefined || value === null) return []
  return String(value)
    .split(',')
    .map((item) => item.trim())
    .filter(Boolean)
}

function isEmptySlotToken (value?: string) {
  return !value || value === 'null' || value === '0'
}

function splitSlotValues (value: unknown) {
  if (value === undefined || value === null || value === '') return []
  return String(value).split(',').map((item) => item.trim())
}

export type StorefrontSlot = UploadedImage | null

export function joinStorefrontSlots (slots: Array<StorefrontSlot | undefined> = []) {
  return [0, 1, 2].map((index) => {
    const id = slots[index]?.id?.trim()
    return id ? id : '0'
  }).join(',')
}

export function parseStorefrontSlots (order: OrderLike | null | undefined): StorefrontSlot[] {
  const extra = order?.extra || {}
  const ids = splitSlotValues(extra.entity_storefront_image)
  const urls = splitSlotValues(extra.entity_storefront_image_url)

  return [0, 1, 2].map((index) => {
    const id = ids[index] || ''
    const url = urls[index] || ''
    if (isEmptySlotToken(id) && isEmptySlotToken(url)) return null
    if (isEmptySlotToken(id) && !isEmptySlotToken(url)) {
      return { id: '', url, preview: url }
    }
    const resolvedUrl = !isEmptySlotToken(url)
      ? url
      : (/^https?:\/\//i.test(id) ? id : '')
    return {
      id: /^https?:\/\//i.test(id) ? '' : id,
      url: resolvedUrl,
      preview: resolvedUrl,
    }
  })
}

export function isCoordinateAddress (address?: string) {
  if (!address) return false
  const parts = address.split(',').map((part) => part.trim())
  if (parts.length !== 2) return false
  return parts.every((part) => Number.isFinite(Number(part)))
}

export function parseCoordinate (address?: string) {
  if (!isCoordinateAddress(address)) return null
  const [lng, lat] = String(address).split(',').map((part) => Number(part.trim()))
  return { lng, lat }
}

export function formatMapCoordinate (point: { lng: number, lat: number }) {
  return `${point.lng.toFixed(6)},${point.lat.toFixed(6)}`
}

export function formatMapCoordinateDisplay (point: { lng: number, lat: number }) {
  return `N${point.lat.toFixed(6)}°, E${point.lng.toFixed(6)}°`
}

export function getOrderAddressName (order: OrderLike) {
  const extra = order.extra || {}
  return extra.entity_address_name || (!isCoordinateAddress(extra.entity_address) ? extra.entity_address : '') || ''
}

export function getOrderMapAddress (order: OrderLike) {
  const extra = order.extra || {}
  return isCoordinateAddress(extra.entity_address) ? extra.entity_address : ''
}

export function getInitialPhone2 (order: OrderLike) {
  const extra = order.extra || {}
  return String(extra.entity_phone2 || extra.entity_phone_2 || extra.phone2 || '')
}

export function getGoodsIcons (order: OrderLike) {
  const icons = order.extra?.goods_param?.['client.goods.icon']
  return Array.isArray(icons) ? icons.filter((item) => typeof item === 'string') : []
}

export function normalizeOrders<T extends OrderLike> (orders: T[] = []) {
  return orders.map((item) => {
    const nextItem = { ...item, extra: { ...(item.extra || {}) } }
    const goodsParam = nextItem.extra.goods_param
    if (typeof goodsParam === 'string') {
      try {
        nextItem.extra.goods_param = JSON.parse(goodsParam)
      } catch {
        nextItem.extra.goods_param = null
      }
    }
    return nextItem
  })
}

export const MAP_LABEL_DISPLAY_NAME = '商户资料服务'

export function getOrderDisplayName (order?: OrderLike | null) {
  if (order?.goods_type === 'map_label') return MAP_LABEL_DISPLAY_NAME
  return String(order?.goods_name || '').trim() || '-'
}

export function filterOrdersForProduct<T extends OrderLike> (goodsType: string, orders: T[] = []) {
  const normalized = normalizeOrders(orders)
  if (isCorpGoodsType(goodsType)) return normalized
  const target = goodsType || 'map_label'
  return normalized.filter((item) => item.goods_type === target)
}

export function filterMapLabelOrders<T extends OrderLike> (orders: T[] = []) {
  return filterOrdersForProduct('map_label', orders)
}

export function getOrderExtraImages (order: OrderLike | null | undefined, keys: string[]): UploadedImage[] {
  const extra = order?.extra || {}

  for (const key of keys) {
    const values = splitValues(extra[key])
    const explicitIds = splitValues(extra[`${key}_id`])
    const explicitUrls = splitValues(extra[`${key}_url`])
    const urls = explicitUrls.length > 0
      ? explicitUrls
      : values.filter((value) => /^https?:\/\//i.test(value))

    if (urls.length > 0) {
      return urls.map((url, index) => {
        const valueId = values[index] && values[index] !== url ? values[index] : ''
        return {
          id: valueId || explicitIds[index] || '',
          url,
          preview: url,
        }
      })
    }
  }

  return []
}

export function joinUploadedImageIds (images: UploadedImage[]) {
  return images
    .map((image) => image.id.trim())
    .filter(Boolean)
    .join(',')
}

export function buildResubmitPayload (input: {
  order: OrderLike
  values: ResubmitValues
  storefrontSlots: StorefrontSlot[]
  licenseImages: UploadedImage[]
}) {
  const existingExtra = Object.entries(input.order.extra || {}).reduce<Record<string, unknown>>((result, [key, value]) => {
    if (!OMIT_EXTRA_KEYS.has(key)) {
      result[key] = value
    }
    return result
  }, {})

  return {
    id: String(input.order.order_id || ''),
    corp_id: 0,
    entity_name: input.values.entity_name || input.order.entity_name || '',
    entity_phone: input.values.entity_phone || '',
    entity_extra: input.order.entity_extra || {},
    extra: {
      ...existingExtra,
      entity_address_name: input.values.entity_address_name || '',
      entity_address: input.values.entity_address || '',
      entity_phone2: input.values.entity_phone2 || '',
      entity_storefront_image: joinStorefrontSlots(input.storefrontSlots),
      entity_business_license_image: joinUploadedImageIds(input.licenseImages),
    },
  }
}