import { parseTime } from './tool-func'
import type { IOption } from './types'

/**
 * 表格时间格式化
 */
export function formatDate(cellValue: string) {
  if (cellValue === null || cellValue === '') return ''
  const date = new Date(cellValue)
  const year = date.getFullYear()
  const month = date.getMonth() + 1 < 10 ? `0${date.getMonth() + 1}` : date.getMonth() + 1
  const day = date.getDate() < 10 ? `0${date.getDate()}` : date.getDate()
  const hours = date.getHours() < 10 ? `0${date.getHours()}` : date.getHours()
  const minutes = date.getMinutes() < 10 ? `0${date.getMinutes()}` : date.getMinutes()
  const seconds = date.getSeconds() < 10 ? `0${date.getSeconds()}` : date.getSeconds()
  return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime(time: number, option: string) {
  if (`${time}`.length === 10)
    time = parseInt(time.toString()) * 1000
  else
    time = +time

  const d: Date = new Date(time)
  const now = Date.now()

  const diff = (now - Number(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: string) {
  url = url == null ? window.location.href : url
  const search = url.substring(url.lastIndexOf('?') + 1)
  const obj: IOption = {}
  const reg = /([^?&=]+)=([^?&=]*)/g
  search.replace(reg, (rs, $1, $2) => {
    const name = decodeURIComponent($1)
    let val = decodeURIComponent($2)
    val = String(val)
    obj[name as keyof typeof obj] = val
    return rs
  })
  return obj
}

/**
 * @param {string} str value
 * @returns {number} output value
 */
export function byteLength(str: string) {
  // returns the byte length of an utf8 string
  let s = str.length
  for (let 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: Array<unknown>) {
  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: IOption) {
  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: string) {
  const search = decodeURIComponent(url.split('?')[1]).replace(/\+/g, ' ')
  if (!search)
    return {}

  const obj: IOption = {}
  const searchArr = search.split('&')
  searchArr.forEach((v) => {
    const index = v.indexOf('=')
    if (index !== -1) {
      const name = v.substring(0, index)
      const val = v.substring(index + 1, v.length)
      obj[name] = val
    }
  })
  return obj
}

/**
 * @param {string} val
 * @returns {string}
 */
export function html2Text(val: string) {
  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: IOption, source: Array<unknown> | IOption) {
  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: HTMLElement, className: string) {
  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: string) {
  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: Function, wait: number, immediate?: boolean) {
  let timeout: number | null,
    args: Array<any> | null,
    context: any,
    timestamp: number | null,
    result: Function

  const later = function() {
    // 据上一次触发时间间隔
    const last = +new Date() - Number(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 = window.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(...argus: any) {
    context = this
    timestamp = +new Date()
    args = argus
    const callNow = immediate && !timeout
    // 如果延时不存在，重新设定延时
    if (!timeout) timeout = window.setTimeout(later, wait)
    if (callNow) {
      result = func.apply(context, argus)
      context = argus = 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: any) {
  if (!source && typeof source !== 'object') {
    // @ts-expect-error 异常报错
    throw new Error('error arguments', 'deepClone')
  }
  const targetObj: IOption = 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: Array<unknown>) {
  return Array.from(new Set(arr))
}

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

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

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

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

export function makeMap(str: string, expectsLowerCase: boolean) {
  const map = Object.create(null)
  const list = str.split(',')
  for (let i = 0; i < list.length; i++)
    map[list[i]] = true

  return expectsLowerCase ? (val: string) => map[val.toLowerCase()] : (val: string) => map[val]
}

export const exportDefault = 'export default '

export const beautifierConf = {
  html: {
    indent_size: '2',
    indent_char: ' ',
    max_preserve_newlines: '-1',
    preserve_newlines: false,
    keep_array_indentation: false,
    break_chained_methods: false,
    indent_scripts: 'separate',
    brace_style: 'end-expand',
    space_before_conditional: true,
    unescape_strings: false,
    jslint_happy: false,
    end_with_newline: true,
    wrap_line_length: '110',
    indent_inner_html: true,
    comma_first: false,
    e4x: true,
    indent_empty_lines: true,
  },
  js: {
    indent_size: '2',
    indent_char: ' ',
    max_preserve_newlines: '-1',
    preserve_newlines: false,
    keep_array_indentation: false,
    break_chained_methods: false,
    indent_scripts: 'normal',
    brace_style: 'end-expand',
    space_before_conditional: true,
    unescape_strings: false,
    jslint_happy: true,
    end_with_newline: true,
    wrap_line_length: '110',
    indent_inner_html: true,
    comma_first: false,
    e4x: true,
    indent_empty_lines: true,
  },
}

// 首字母大小
export function titleCase(str: string) {
  return str.replace(/( |^)[a-z]/g, L => L.toUpperCase())
}

// 下划转驼峰
export function camelCase(str: string) {
  return str.replace(/_[a-z]/g, str1 => str1.substr(-1).toUpperCase())
}

export function isNumberStr(str: string) {
  return /^[+-]?(0|([1-9]\d*))(\.\d+)?$/g.test(str)
}

export function jsonClone(val: any) {
  return JSON.parse(JSON.stringify(val))
}

export const isEmptyObj = (item: unknown): boolean => JSON.stringify(item) === '{}'