/**
 * 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 windowWidth() {
  let winWidth = 0
  if (window.innerWidth) {
    winWidth = window.innerWidth
  } else if (document.body && document.body.clientWidth) {
    winWidth = document.body.clientWidth
  }
  return winWidth
}

export function windowHeight() {
  let winHeight = 0
  if (window.innerHeight) {
    winHeight = window.innerHeight
  } else if (document.body && document.body.clientHeight) {
    winHeight = document.body.clientHeight
  }
  return winHeight
}

export function guid() {
  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
    const r = (Math.random() * 16) | 0
    const v = c === 'x' ? r : (r & 0x3) | 0x8
    return v.toString(16)
  })
}

export function shuffle(arr) {
  for (var i = arr.length - 1; i >= 0; i--) {
    var randomIndex = Math.floor(Math.random() * (i + 1))
    var itemAtIndex = arr[randomIndex]
    arr[randomIndex] = arr[i]
    arr[i] = itemAtIndex
  }
  return arr
}

export function bytesToSize(bytes) {
  if (bytes === 0) return '0 B'
  var k = 1024
  var sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
  var i = Math.floor(Math.log(bytes) / Math.log(k))
  // return (bytes / Math.pow(k, i)) + ' ' + sizes[i];
  return (bytes / Math.pow(k, i)).toPrecision(3) + ' ' + sizes[i]
}

export function replaceAll(str, s1, s2) {
  return str.replace(new RegExp(s1, 'gm'), s2)
}

/**
* compareVersion('1.11.0', '1.9.9')
// 1
*/
export function compareVersion(v1, v2) {
  v1 = v1.split('.')
  v2 = v2.split('.')
  var len = Math.max(v1.length, v2.length)

  while (v1.length < len) {
    v1.push('0')
  }
  while (v2.length < len) {
    v2.push('0')
  }

  for (var i = 0; i < len; i++) {
    var num1 = parseInt(v1[i])
    var num2 = parseInt(v2[i])

    if (num1 > num2) {
      return 1
    } else if (num1 < num2) {
      return -1
    }
  }
  return 0
}

export function subStrWithTail(str, subLength, startIndex = 0, tail = '..') {
  return str == null || str.length === 0 ? '' : str.substr(startIndex, subLength) + ((str.length - startIndex <= subLength) ? '' : tail)
}

/**
 * 检查两个String数组项内容是否一致
 * @param {*} arr1
 * @param {*} arr2
 */
export function strArrEquals(arr1, arr2) {
  if (arr1 === null && arr2 === null) return true
  if ((arr1 === null && arr2 !== null) ||
    (arr1 !== null && arr2 === null)) return false
  if (arr1.length !== arr2.length) return false

  return arr1.every((v) => {
    return arr2.includes(v)
  })
}

/**
 * 比较两个对象是否相等
 * @param {*} x
 * @param {*} y
 */
export function equals(x, y) {
  var f1 = x instanceof Object
  var f2 = y instanceof Object
  if (!f1 || !f2) {
    return x === y
  }
  if (Object.keys(x).length !== Object.keys(y).length) {
    return false
  }
  var newX = Object.keys(x)
  for (var p in newX) {
    p = newX[p]
    var a = x[p] instanceof Object
    var b = y[p] instanceof Object
    if (a && b) {
      const equal = equals(x[p], y[p])
      if (!equal) {
        return equal
      }
    } else if (x[p] !== y[p]) {
      return false
    }
  }
  return true
}

/**
 * 首字母大写
 * @param {*} str
 */
export function firstWordUpper(str) {
  return str.substring(0, 1).toUpperCase() + str.substring(1)
}

export function text2Html(text) {
  return '<p>' + text.replace(/\n/g, '</p><p>') + '</p>'
}

/**
 * 获取图片信息
 * @param {*} url
 */
export function getImageInfo(url) {
  return new Promise((resolve, reject) => {
    const img = new Image()
    img.onload = function() {
      resolve({
        src: this.src,
        width: this.width,
        height: this.height
      })
    }
    img.onerror = function() {
      reject(new Error('加载失败'))
    }
    img.src = url
  })
}

export function queryString() {
  const vars = []
  let hash = []
  var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&')
  for (var i = 0; i < hashes.length; i++) {
    hash = hashes[i].split('=')
    vars.push(hash[0])
    vars[hash[0]] = hash[1]
  }
  return vars
}

export function cutString(str, len, suffix) {
  if (!str) return ''
  if (len <= 0) return ''
  if (!suffix) suffix = ''
  var templen = 0
  for (var i = 0; i < str.length; i++) {
    if (str.charCodeAt(i) > 255) {
      templen += 2
    } else {
      templen++
    }
    if (templen === len) {
      return str.substring(0, i + 1) + suffix
    } else if (templen > len) {
      return str.substring(0, i) + suffix
    }
  }
  return str
}

export function sleep(delay) {
  var start = (new Date()).getTime()
  while ((new Date()).getTime() - start < delay) {
    continue
  }
}

export function arraySort(arr, key, orderType) {
  const arr2 = deepClone(arr)
  arr2.sort((x, y) => {
    return orderType === 'desc' ? (x[key] - y[key]) : (y[key] - x[key])
  })
  console.log(arr2)
  return arr2
}