import type { App } from 'vue'
import { adminBaseRoutePath } from '@/router/static'
import router from '@/router/index'
import { trimStart } from 'lodash-es'
import * as elIcons from '@element-plus/icons-vue'
import Icon from '@/components/icon/index.vue'

export function registerIcons(app: App) {
    /*
     * 全局注册 Icon
     * 使用方式: <Icon name="name" size="size" color="color" />
     * 详见<待完善>
     */
    app.component('Icon', Icon)

    /*
     * 全局注册element Plus的icon
     */
    const icons = elIcons as any
    for (const i in icons) {
        app.component(`el-icon-${icons[i].name}`, icons[i])
    }
}

/**
 * 是否在后台应用内
 * @param path 不传递则通过当前路由 path 检查
 */
export const isAdminApp = (path = '') => {
    const regex = new RegExp(`^${adminBaseRoutePath}`)
    if (path) {
        return regex.test(path)
    }
    if (regex.test(getCurrentRoutePath())) {
        return true
    }
    return false
}

/**
 * 获取路由 path
 */
export const getCurrentRoutePath = () => {
    let path = router.currentRoute.value.path
    if (path == '/') path = trimStart(window.location.hash, '#')
    if (path.indexOf('?') !== -1) path = path.replace(/\?.*/, '')
    return path
}

/**
 * 获取资源完整地址
 * @param relativeUrl 资源相对地址
 * @param domain 指定域名
 */
export const fullUrl = (relativeUrl: string, domain = '') => {
    return domain + relativeUrl
}

/**
 * 是否是外部链接
 * @param path
 */
export function isExternal(path: string): boolean {
    return /^(https?|ftp|mailto|tel):/.test(path)
}

/**
 * 全局防抖
 * 与 _.debounce 不同的是，间隔期间如果再次传递不同的函数，两个函数也只会执行一次
 * @param fn 执行函数
 * @param ms 间隔毫秒数
 */
export const debounce = (fn: Function, ms: number) => {
    return (...args: any[]) => {
        if (window.lazy) {
            clearTimeout(window.lazy)
        }
        window.lazy = window.setTimeout(() => {
            fn(...args)
        }, ms)
    }
}

/**
 * 字符串补位
 */
const padStart = (str: string, maxLength: number, fillString = ' ') => {
    if (str.length >= maxLength) return str

    const fillLength = maxLength - str.length
    let times = Math.ceil(fillLength / fillString.length)
    while ((times >>= 1)) {
        fillString += fillString
        if (times === 1) {
            fillString += fillString
        }
    }
    return fillString.slice(0, fillLength) + str
}

/**
 * 格式化时间戳
 * @param dateTime 时间戳
 * @param fmt 格式化方式，默认：yyyy-mm-dd hh:MM:ss
 */
export const timeFormat = (dateTime: string | number | null = null, fmt = 'yyyy-mm-dd hh:MM:ss') => {
    if (dateTime == 'none') return '-'
    if (!dateTime) dateTime = Number(new Date())
    if (dateTime.toString().length === 10) {
        dateTime = +dateTime * 1000
    }

    const date = new Date(dateTime)
    let ret
    const opt: anyObj = {
        'y+': date.getFullYear().toString(), // 年
        'm+': (date.getMonth() + 1).toString(), // 月
        'd+': date.getDate().toString(), // 日
        'h+': date.getHours().toString(), // 时
        'M+': date.getMinutes().toString(), // 分
        's+': date.getSeconds().toString() // 秒
    }
    for (const k in opt) {
        ret = new RegExp('(' + k + ')').exec(fmt)
        if (ret) {
            fmt = fmt.replace(ret[1], ret[1].length == 1 ? opt[k] : padStart(opt[k], ret[1].length, '0'))
        }
    }
    return fmt
}