type TagType = 'success' | 'warning' | 'danger' | 'info' | '' | 'primary'

export interface ProductDictResolver {
  getLabel: (dictType: string, value: string) => string
  getOptions: (dictType: string) => Array<{ label: string; value: string; tagType: string }>
}

const CRM_PRODUCT_STATUS = 'crm_product_status'

/** 产品状态：库内 on/off；兼容历史 1/0 */
export function productStatusDictKey(status: string | number | null | undefined): string {
  const s = String(status ?? '')
  if (s === '1') return 'on'
  if (s === '0') return 'off'
  return s
}

/** 表单/提交用：统一为 on/off */
export function normalizeProductStatusValue(status: string | number | null | undefined): string {
  const s = String(status ?? 'on')
  if (s === '1' || s === 'on') return 'on'
  if (s === '0' || s === 'off') return 'off'
  return 'on'
}

function findProductStatusItem(
  resolver: ProductDictResolver,
  status: string | number | null | undefined
) {
  const raw = String(status ?? '')
  if (!raw) return undefined
  const mapped = productStatusDictKey(status)
  const items = resolver.getOptions(CRM_PRODUCT_STATUS)
  return items.find((i) => i.value === raw) ?? items.find((i) => i.value === mapped)
}

export function getProductStatusLabel(
  resolver: ProductDictResolver,
  status: string | number | null | undefined
): string {
  const item = findProductStatusItem(resolver, status)
  if (item) return item.label
  const key = productStatusDictKey(status)
  if (key === 'on') return '上架'
  if (key === 'off') return '下架'
  return '—'
}

export function getProductStatusTagType(
  resolver: ProductDictResolver,
  status: string | number | null | undefined
): TagType {
  const item = findProductStatusItem(resolver, status)
  if (item?.tagType) return item.tagType as TagType

  const key = productStatusDictKey(status)
  if (key === 'on') return 'success'
  if (key === 'off') return 'danger'
  return 'info'
}

export function getProductUnitLabel(
  getLabel: (dictType: string, value: string) => string,
  unit: string | null | undefined
): string {
  if (!unit) return '—'
  return getLabel('crm_product_unit', unit) || unit
}

/** CRM 计量单位「吨」的字典值及历史直存文案 */
export const TON_PRODUCT_UNIT_VALUES = new Set(['dun', '吨'])

/** 地磅过磅单位为吨；空单位按业务默认视为吨 */
export function isTonProductUnit(unit: string | null | undefined): boolean {
  const code = (unit || '').trim()
  if (!code) return true
  return TON_PRODUCT_UNIT_VALUES.has(code)
}