import Vue from 'vue'
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import { mergeRecursive } from "@/utils/ruoyi";
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import DictMeta from './DictMeta'
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import DictData from './DictData'
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const DEFAULT_DICT_OPTIONS = {
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types: [],
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}
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/**
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* @classdesc 字典
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* @property {Object} label 标签对象，内部属性名为字典类型名称
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* @property {Object} dict 字段数组，内部属性名为字典类型名称
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* @property {Array.<DictMeta>} _dictMetas 字典元数据数组
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*/
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export default class Dict {
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constructor() {
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this.owner = null
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this.label = {}
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this.type = {}
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}
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init(options) {
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if (options instanceof Array) {
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options = { types: options }
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}
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const opts = mergeRecursive(DEFAULT_DICT_OPTIONS, options)
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if (opts.types === undefined) {
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throw new Error('need dict types')
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}
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const ps = []
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this._dictMetas = opts.types.map(t => DictMeta.parse(t))
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this._dictMetas.forEach(dictMeta => {
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const type = dictMeta.type
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Vue.set(this.label, type, {})
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Vue.set(this.type, type, [])
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if (dictMeta.lazy) {
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return
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}
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ps.push(loadDict(this, dictMeta))
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})
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return Promise.all(ps)
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}
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/**
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* 重新加载字典
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* @param {String} type 字典类型
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*/
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reloadDict(type) {
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const dictMeta = this._dictMetas.find(e => e.type === type)
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if (dictMeta === undefined) {
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return Promise.reject(`the dict meta of ${type} was not found`)
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}
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return loadDict(this, dictMeta)
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}
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}
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/**
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* 加载字典
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* @param {Dict} dict 字典
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* @param {DictMeta} dictMeta 字典元数据
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* @returns {Promise}
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*/
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function loadDict(dict, dictMeta) {
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return dictMeta.request(dictMeta)
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.then(response => {
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const type = dictMeta.type
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let dicts = dictMeta.responseConverter(response, dictMeta)
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if (!(dicts instanceof Array)) {
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console.error('the return of responseConverter must be Array.<DictData>')
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dicts = []
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} else if (dicts.filter(d => d instanceof DictData).length !== dicts.length) {
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console.error('the type of elements in dicts must be DictData')
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dicts = []
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}
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dict.type[type].splice(0, Number.MAX_SAFE_INTEGER, ...dicts)
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dicts.forEach(d => {
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Vue.set(dict.label[type], d.value, d.label)
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})
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return dicts
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})
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}
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