/**
 * Created by PanJiaChen on 16/11/18.
 */
import SubPage from "../views/common/SubPage";

const _import = require('@/router/_import_' + process.env.NODE_ENV)//获取组件的方法
import Layout from '@/layout'
import store from '@/store'

/**
 * Parse the time to string
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string}
 */
export function parseTime(time, cFormat) {
    if (arguments.length === 0) {
        return null
    }
    const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
    let date
    if (typeof time === 'object') {
        date = time
    } else {
        if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
            time = parseInt(time)
        }
        if ((typeof time === 'number') && (time.toString().length === 10)) {
            time = time * 1000
        }
        date = new Date(time)
    }
    const formatObj = {
        y: date.getFullYear(),
        m: date.getMonth() + 1,
        d: date.getDate(),
        h: date.getHours(),
        i: date.getMinutes(),
        s: date.getSeconds(),
        a: date.getDay()
    }
    const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
        let value = formatObj[key]
        // Note: getDay() returns 0 on Sunday
        if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value ] }
        if (result.length > 0 && value < 10) {
            value = '0' + value
        }
        return value || 0
    })
    return time_str
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime(time, option) {
    if (('' + time).length === 10) {
        time = parseInt(time) * 1000
    } else {
        time = +time
    }
    const d = new Date(time)
    const now = Date.now()

    const diff = (now - d) / 1000

    if (diff < 30) {
        return '刚刚'
    } else if (diff < 3600) {
        // less 1 hour
        return Math.ceil(diff / 60) + '分钟前'
    } else if (diff < 3600 * 24) {
        return Math.ceil(diff / 3600) + '小时前'
    } else if (diff < 3600 * 24 * 2) {
        return '1天前'
    }
    if (option) {
        return parseTime(time, option)
    } else {
        return (
            d.getMonth() +
            1 +
            '月' +
            d.getDate() +
            '日' +
            d.getHours() +
            '时' +
            d.getMinutes() +
            '分'
        )
    }
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function getQueryObject(url) {
    url = url == null ? window.location.href : url
    const search = url.substring(url.lastIndexOf('?') + 1)
    const obj = {}
    const reg = /([^?&=]+)=([^?&=]*)/g
    search.replace(reg, (rs, $1, $2) => {
        const name = decodeURIComponent($1)
        let val = decodeURIComponent($2)
        val = String(val)
        obj[name] = val
        return rs
    })
    return obj
}

/**
 * @param {string} input value
 * @returns {number} output value
 */
export function byteLength(str) {
    // returns the byte length of an utf8 string
    let s = str.length
    for (var i = str.length - 1; i >= 0; i--) {
        const code = str.charCodeAt(i)
        if (code > 0x7f && code <= 0x7ff) s++
        else if (code > 0x7ff && code <= 0xffff) s += 2
        if (code >= 0xDC00 && code <= 0xDFFF) i--
    }
    return s
}

/**
 * @param {Array} actual
 * @returns {Array}
 */
export function cleanArray(actual) {
    const newArray = []
    for (let i = 0; i < actual.length; i++) {
        if (actual[i]) {
            newArray.push(actual[i])
        }
    }
    return newArray
}

/**
 * @param {Object} json
 * @returns {Array}
 */
export function param(json) {
    if (!json) return ''
    return cleanArray(
        Object.keys(json).map(key => {
            if (json[key] === undefined) return ''
            return encodeURIComponent(key) + '=' + encodeURIComponent(json[key])
        })
    ).join('&')
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj(url) {
    const search = url.split('?')[1]
    if (!search) {
        return {}
    }
    return JSON.parse(
        '{"' +
        decodeURIComponent(search)
            .replace(/"/g, '\\"')
            .replace(/&/g, '","')
            .replace(/=/g, '":"')
            .replace(/\+/g, ' ') +
        '"}'
    )
}

/**
 * @param {string} val
 * @returns {string}
 */
export function html2Text(val) {
    const div = document.createElement('div')
    div.innerHTML = val
    return div.textContent || div.innerText
}

/**
 * Merges two objects, giving the last one precedence
 * @param {Object} target
 * @param {(Object|Array)} source
 * @returns {Object}
 */
export function objectMerge(target, source) {
    if (typeof target !== 'object') {
        target = {}
    }
    if (Array.isArray(source)) {
        return source.slice()
    }
    Object.keys(source).forEach(property => {
        const sourceProperty = source[property]
        if (typeof sourceProperty === 'object') {
            target[property] = objectMerge(target[property], sourceProperty)
        } else {
            target[property] = sourceProperty
        }
    })
    return target
}

/**
 * @param {HTMLElement} element
 * @param {string} className
 */
export function toggleClass(element, className) {
    if (!element || !className) {
        return
    }
    let classString = element.className
    const nameIndex = classString.indexOf(className)
    if (nameIndex === -1) {
        classString += '' + className
    } else {
        classString =
            classString.substr(0, nameIndex) +
            classString.substr(nameIndex + className.length)
    }
    element.className = classString
}

/**
 * @param {string} type
 * @returns {Date}
 */
export function getTime(type) {
    if (type === 'start') {
        return new Date().getTime() - 3600 * 1000 * 24 * 90
    } else {
        return new Date(new Date().toDateString())
    }
}

/**
 * @param {Function} func
 * @param {number} wait
 * @param {boolean} immediate
 * @return {*}
 */
export function debounce(func, wait, immediate) {
    let timeout, args, context, timestamp, result

    const later = function() {
        // 据上一次触发时间间隔
        const last = +new Date() - timestamp

        // 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
        if (last < wait && last > 0) {
            timeout = setTimeout(later, wait - last)
        } else {
            timeout = null
            // 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
            if (!immediate) {
                result = func.apply(context, args)
                if (!timeout) context = args = null
            }
        }
    }

    return function(...args) {
        context = this
        timestamp = +new Date()
        const callNow = immediate && !timeout
        // 如果延时不存在，重新设定延时
        if (!timeout) timeout = setTimeout(later, wait)
        if (callNow) {
            result = func.apply(context, args)
            context = args = null
        }

        return result
    }
}

/**
 * This is just a simple version of deep copy
 * Has a lot of edge cases bug
 * If you want to use a perfect deep copy, use lodash's _.cloneDeep
 * @param {Object} source
 * @returns {Object}
 */
export function deepClone(source) {
    if (!source && typeof source !== 'object') {
        throw new Error('error arguments', 'deepClone')
    }
    const targetObj = source.constructor === Array ? [] : {}
    Object.keys(source).forEach(keys => {
        if (source[keys] && typeof source[keys] === 'object') {
            targetObj[keys] = deepClone(source[keys])
        } else {
            targetObj[keys] = source[keys]
        }
    })
    return targetObj
}

/**
 * @param {Array} arr
 * @returns {Array}
 */
export function uniqueArr(arr) {
    return Array.from(new Set(arr))
}

/**
 * @returns {string}
 */
export function createUniqueString() {
    const timestamp = +new Date() + ''
    const randomNum = parseInt((1 + Math.random()) * 65536) + ''
    return (+(randomNum + timestamp)).toString(32)
}

/**
 * Check if an element has a class
 * @param {HTMLElement} elm
 * @param {string} cls
 * @returns {boolean}
 */
export function hasClass(ele, cls) {
    return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
}

/**
 * Add class to element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function addClass(ele, cls) {
    if (!hasClass(ele, cls)) ele.className += ' ' + cls
}

/**
 * Remove class from element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function removeClass(ele, cls) {
    if (hasClass(ele, cls)) {
        const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
        ele.className = ele.className.replace(reg, ' ')
    }
}

export function createRouter( apiRouters ){
    let asyncRouter = [];
    let user_permission  = [];
    let alwaysShow = false;

    for(let i in apiRouters){
        let val = apiRouters[i];


        let _rule = val.rule.split('/');
        let name = '';
        for(let x in _rule){
            name += ucfirst(_rule[x]);
        }

        let rule_path = '/'+val.rule;
        if( typeof val.extra.params == 'object' && val.extra.params.length > 0 ){
            rule_path += '/:' + val.extra.params.join('/:');
        }

        let router = {
            path: rule_path,
            //component: _import(val.rule),
            //alwaysShow: true, // will always show the root menu
            name: name,
            meta: {
                id:val.id,
                title: val.name,
                icon: val.extra.icon || '',
            },
        };

        user_permission.push(val.rule);

        if( typeof val.child == "object" && val.child.length>0){
            let _childrenRouter = createRouter(val.child);
            router.children    = _childrenRouter.asyncRouter;
            if( typeof val.extra.redirect != "undefined" && val.extra.redirect != null ){
                router.redirect = val.extra.redirect;
            }

            router.alwaysShow  = _childrenRouter.alwaysShow;

            if( typeof val.extra.component != "undefined" && val.extra.component != null ){
                if( val.extra.component=='Layout' ){
                    router.component = Layout;
                }else if( val.extra.component=='SubPage' ){
                    router.component = SubPage;
                }else{
                    router.component = _import(val.extra.component)
                }
            }

            if( typeof val.extra.hidden == 'undefined' || val.extra.hidden == null){
                alwaysShow  = true;
            }

            user_permission = user_permission.concat(_childrenRouter.user_permission);
        }else{
            try{
                if( typeof val.extra.hidden != 'undefined' && val.extra.hidden && val.extra.hidden){
                    router.hidden = true;

                    if( typeof val.extra.component != "undefined" && val.extra.component != null ){
                        router.component = val.extra.component=='Layout'?Layout:_import(val.extra.component)
                    }
                }else{
                    router.component = val.extra.component=='Layout'?Layout:_import(val.extra.component)
                    alwaysShow  = true;
                }
            }catch(e){
                console.log(e);
            }
        }

        asyncRouter.push(router);
    }

    return {asyncRouter,user_permission,alwaysShow};
}


function ucfirst(str) {
    return str.toLowerCase().replace(/( |^)[a-z]/g, (L) => L.toUpperCase());
}

/**
 * 权限检查
 * @param value
 */
export function checkPermission( value ){
    if(typeof value == 'string' &&  value.length > 0){

        let hasPermission = store.getters.user_permission.includes(value);

        if( !hasPermission ){
            return true;
        }
    }

    return false;
}