import type { DictDataOption } from '@/service/api/system/dict'

export type DictValue = string | number | boolean | null | undefined

/**
 * 将字典选项转换为 Naive UI Select 所需结构
 */
export function toSelectOptions(dictOptions: DictDataOption[] = []) {
  return dictOptions.map(option => ({
    label: option.dictLabel,
    value: option.dictValue,
  }))
}

/**
 * 通过字典值获取对应的完整选项对象
 */
export function findDictOption(dictOptions: DictDataOption[] = [], value: DictValue) {
  if (value === undefined || value === null)
    return undefined

  const target = String(value)
  return dictOptions.find(option => option.dictValue === target)
}

/**
 * 获取字典标签，找不到时返回默认值或原始值
 */
export function findDictLabel(dictOptions: DictDataOption[] = [], value: DictValue, fallback?: string) {
  const target = findDictOption(dictOptions, value)
  if (target)
    return target.dictLabel

  if (fallback !== undefined)
    return fallback

  if (value === undefined || value === null || value === '')
    return ''

  return String(value)
}

/**
 * 获取字典颜色配置
 */
export function findDictColor(dictOptions: DictDataOption[] = [], value: DictValue) {
  const target = findDictOption(dictOptions, value)
  if (!target)
    return undefined

  return {
    tag: target.dictTag,
    color: target.dictColor,
    label: target.dictLabel,
  }
}

/**
 * 将字典数组转为值 -> 选项的 Map，方便重复查询
 */
export function createDictMap(dictOptions: DictDataOption[] = []) {
  const map = new Map<string, DictDataOption>()
  dictOptions.forEach(option => map.set(option.dictValue, option))
  return map
}