import AntdEn from 'ant-design-vue/es/locale/en_US';
import AntdZh from 'ant-design-vue/es/locale/zh_CN';
import lodash from 'lodash';
import Vue from 'vue';
import VueI18n from 'vue-i18n';
import en from './en';
import zh from './zh';
Vue.use(VueI18n)
const defaultLocales = {
    en,
    zh,
}
// const files = require.context('@/pages', true, /locales.ts$/) // 根据目录结构去搜索文件
// files.keys().map(x => {
//     const locale = files(x).default
//     lodash.assign(locales.en, locale.en)
//     lodash.assign(locales.zh, locale.zh)
// })
const Enumlocales = lodash.mapValues(lodash.cloneDeep(zh), (val, key) => key)
const $i18n = new VueI18n({
    locale: 'zh',
    fallbackLocale: 'zh',
    messages: defaultLocales
});

// export const $i18n = new VueI18n({
//     locale: 'zh',
//     fallbackLocale: 'zh',
//     messages: locales
// })
export const Locales = {
    $i18n,
    getAntdLocale: (locale) => lodash.get({ zh: AntdZh, en: AntdEn }, locale),
    inject(context) {
        // nuxt context
        if (lodash.has(context, 'app')) {
            lodash.set(context.app, 'i18n', $i18n)
        }
    },
    init(params: {
        /** 页面配置 */
        pagesContext?: __WebpackModuleApi.RequireContext,
        /** 扩展 */
        locales?: any
    } = {}) {

        const locale = {}
        if (params.pagesContext) {
            const files = params.pagesContext;
            files.keys().map(x => {
                const lole = files(x)
                if (lodash.has(lole, 'default')) {
                    lodash.merge(locale, lole.default)
                }
            })
        }
        lodash.merge(locale, params.locales)
        lodash.mapValues(locale, (val, key) => {
            $i18n.mergeLocaleMessage(key, val)
        })
        return $i18n
    }
}
lodash.set(Vue, 'onChangeLanguage', (locale) => {
    Locales.$i18n.locale = locale;
})
Object.defineProperty(Vue.prototype, '$Enumlocales', {
    get: lodash.constant(Enumlocales)
})
Object.defineProperty(Vue.prototype, 'getAntdLocale', {
    get: lodash.constant(Locales.getAntdLocale)
})
// Object.defineProperty(Vue.prototype, 'i18n', {
//     get: lodash.constant($i18n)
// })
declare module 'vue/types/vue' {
    interface Vue {
        /**
          * 语言包
          */
        readonly $Enumlocales: typeof Enumlocales
        readonly getAntdLocale: (locale) => any

    }
    interface VueConstructor<V extends Vue = Vue> {
        readonly onChangeLanguage: (locale) => any
    }
}