import { validatenull } from './validate';
import sha256 from 'crypto-js/sha256';
import Base64 from 'crypto-js/enc-base64';
//表单序列化
export const serialize = data => {
  let list = [];
  Object.keys(data).forEach(ele => {
    list.push(`${ele}=${data[ele]}`);
  });
  return list.join('&');
};
export const getObjType = obj => {
  var toString = Object.prototype.toString;
  var map = {
    '[object Boolean]': 'boolean',
    '[object Number]': 'number',
    '[object String]': 'string',
    '[object Function]': 'function',
    '[object Array]': 'array',
    '[object Date]': 'date',
    '[object RegExp]': 'regExp',
    '[object Undefined]': 'undefined',
    '[object Null]': 'null',
    '[object Object]': 'object',
  };
  if (obj instanceof Element) {
    return 'element';
  }
  return map[toString.call(obj)];
};
/**
 * 对象深拷贝
 */
export const deepClone = data => {
  var type = getObjType(data);
  var obj;
  if (type === 'array') {
    obj = [];
  } else if (type === 'object') {
    obj = {};
  } else {
    //不再具有下一层次
    return data;
  }
  if (type === 'array') {
    for (var i = 0, len = data.length; i < len; i++) {
      obj.push(deepClone(data[i]));
    }
  } else if (type === 'object') {
    for (var key in data) {
      obj[key] = deepClone(data[key]);
    }
  }
  return obj;
};
/**
 * 设置灰度模式
 */
export const toggleGrayMode = status => {
  if (status) {
    document.body.className = document.body.className + ' grayMode';
  } else {
    document.body.className = document.body.className.replace(' grayMode', '');
  }
};
/**
 * 设置主题
 */
export const setTheme = name => {
  document.body.className = name;
};

/**
 * 加密处理
 */
export const encryption = params => {
  let { data = {}, type, param, key } = params;
  let result = JSON.parse(JSON.stringify(data));
  if (type == 'Base64') {
    param.forEach(ele => {
      result[ele] = Base64.stringify(result[ele]);
    });
  } else if (type == 'Aes') {
    param.forEach(ele => {
      result[ele] = sha256(result[ele], key);
    });
  }
  return result;
};

/**
 * 浏览器判断是否全屏
 */
export const fullscreenToggel = () => {
  if (fullscreenEnable()) {
    exitFullScreen();
  } else {
    reqFullScreen();
  }
};
/**
 * esc监听全屏
 */
export const listenfullscreen = callback => {
  function listen() {
    callback();
  }

  document.addEventListener('fullscreenchange', function () {
    listen();
  });
  document.addEventListener('mozfullscreenchange', function () {
    listen();
  });
  document.addEventListener('webkitfullscreenchange', function () {
    listen();
  });
  document.addEventListener('msfullscreenchange', function () {
    listen();
  });
};
/**
 * 浏览器判断是否全屏
 */
export const fullscreenEnable = () => {
  var isFullscreen =
    document.isFullScreen || document.mozIsFullScreen || document.webkitIsFullScreen;
  return isFullscreen;
};

/**
 * 浏览器全屏
 */
export const reqFullScreen = () => {
  if (document.documentElement.requestFullScreen) {
    document.documentElement.requestFullScreen();
  } else if (document.documentElement.webkitRequestFullScreen) {
    document.documentElement.webkitRequestFullScreen();
  } else if (document.documentElement.mozRequestFullScreen) {
    document.documentElement.mozRequestFullScreen();
  }
};
/**
 * 浏览器退出全屏
 */
export const exitFullScreen = () => {
  if (document.documentElement.requestFullScreen) {
    document.exitFullScreen();
  } else if (document.documentElement.webkitRequestFullScreen) {
    document.webkitCancelFullScreen();
  } else if (document.documentElement.mozRequestFullScreen) {
    document.mozCancelFullScreen();
  }
};
/**
 * 递归寻找子类的父类
 */

export const findParent = (menu, id) => {
  for (let i = 0; i < menu.length; i++) {
    if (menu[i].children.length != 0) {
      for (let j = 0; j < menu[i].children.length; j++) {
        if (menu[i].children[j].id == id) {
          return menu[i];
        } else {
          if (menu[i].children[j].children.length != 0) {
            return findParent(menu[i].children[j].children, id);
          }
        }
      }
    }
  }
};
/**
 * 判断2个对象属性和值是否相等
 */

/**
 * 动态插入css
 */

export const loadStyle = url => {
  const link = document.createElement('link');
  link.type = 'text/css';
  link.rel = 'stylesheet';
  link.href = url;
  const head = document.getElementsByTagName('head')[0];
  head.appendChild(link);
};
/**
 * 判断路由是否相等
 */
export const diff = (obj1, obj2) => {
  delete obj1.close;
  var o1 = obj1 instanceof Object;
  var o2 = obj2 instanceof Object;
  if (!o1 || !o2) {
    /*  判断不是对象  */
    return obj1 === obj2;
  }

  if (Object.keys(obj1).length !== Object.keys(obj2).length) {
    return false;
    //Object.keys() 返回一个由对象的自身可枚举属性(key值)组成的数组,例如：数组返回下表：let arr = ["a", "b", "c"];console.log(Object.keys(arr))->0,1,2;
  }

  for (var attr in obj1) {
    var t1 = obj1[attr] instanceof Object;
    var t2 = obj2[attr] instanceof Object;
    if (t1 && t2) {
      return diff(obj1[attr], obj2[attr]);
    } else if (obj1[attr] !== obj2[attr]) {
      return false;
    }
  }
  return true;
};
/**
 * 根据字典的value显示label
 */
export const findByvalue = (dic, value) => {
  let result = '';
  if (validatenull(dic)) return value;
  if (typeof value == 'string' || typeof value == 'number' || typeof value == 'boolean') {
    let index = 0;
    index = findArray(dic, value);
    if (index != -1) {
      result = dic[index].label;
    } else {
      result = value;
    }
  } else if (value instanceof Array) {
    result = [];
    let index = 0;
    value.forEach(ele => {
      index = findArray(dic, ele);
      if (index != -1) {
        result.push(dic[index].label);
      } else {
        result.push(value);
      }
    });
    result = result.toString();
  }
  return result;
};
/**
 * 根据字典的value查找对应的index
 */
export const findArray = (dic, value) => {
  for (let i = 0; i < dic.length; i++) {
    if (dic[i].value == value) {
      return i;
    }
  }
  return -1;
};
/**
 * 生成随机len位数字
 */
export const randomLenNum = (len, date) => {
  let random = '';
  random = Math.ceil(Math.random() * 100000000000000)
    .toString()
    .substr(0, len ? len : 4);
  if (date) random = random + Date.now();
  return random;
};
/**
 * 打开小窗口
 */
export const openWindow = (url, title, w, h) => {
  // Fixes dual-screen position                            Most browsers       Firefox
  const dualScreenLeft = window.screenLeft !== undefined ? window.screenLeft : screen.left;
  const dualScreenTop = window.screenTop !== undefined ? window.screenTop : screen.top;

  const width = window.innerWidth
    ? window.innerWidth
    : document.documentElement.clientWidth
    ? document.documentElement.clientWidth
    : screen.width;
  const height = window.innerHeight
    ? window.innerHeight
    : document.documentElement.clientHeight
    ? document.documentElement.clientHeight
    : screen.height;

  const left = width / 2 - w / 2 + dualScreenLeft;
  const top = height / 2 - h / 2 + dualScreenTop;
  const newWindow = window.open(
    url,
    title,
    'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=yes, copyhistory=no, width=' +
      w +
      ', height=' +
      h +
      ', top=' +
      top +
      ', left=' +
      left
  );

  // Puts focus on the newWindow
  if (window.focus) {
    newWindow.focus();
  }
};

export const getScreen = isCollapse => {
  if (document.body.clientWidth <= 768) {
    return !isCollapse;
  } else {
    return isCollapse;
  }
};

/**
 * 获取顶部地址栏地址
 */
export const getTopUrl = () => {
  return window.location.href.split('/#/')[0];
};

/**
 * 获取url参数
 * @param name 参数名
 */
export const getQueryString = name => {
  let reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)', 'i');
  let r = window.location.search.substr(1).match(reg);
  if (r != null) return unescape(decodeURI(r[2]));
  return null;
};

/**
 * 下载文件
 * @param {String} path - 文件地址
 * @param {String} name - 文件名,eg: test.png
 */
export const downloadFileBlob = (path, name) => {
  const xhr = new XMLHttpRequest();
  xhr.open('get', path);
  xhr.responseType = 'blob';
  xhr.send();
  xhr.onload = function () {
    if (this.status === 200 || this.status === 304) {
      // 如果是IE10及以上，不支持download属性，采用msSaveOrOpenBlob方法，但是IE10以下也不支持msSaveOrOpenBlob
      if ('msSaveOrOpenBlob' in navigator) {
        navigator.msSaveOrOpenBlob(this.response, name);
        return;
      }
      const url = URL.createObjectURL(this.response);
      const a = document.createElement('a');
      a.style.display = 'none';
      a.href = url;
      a.download = name;
      document.body.appendChild(a);
      a.click();
      document.body.removeChild(a);
      URL.revokeObjectURL(url);
    }
  };
};

/**
 * 下载文件
 * @param {String} path - 文件地址
 * @param {String} name - 文件名,eg: test.png
 */
export const downloadFileBase64 = (path, name) => {
  const xhr = new XMLHttpRequest();
  xhr.open('get', path);
  xhr.responseType = 'blob';
  xhr.send();
  xhr.onload = function () {
    if (this.status === 200 || this.status === 304) {
      const fileReader = new FileReader();
      fileReader.readAsDataURL(this.response);
      fileReader.onload = function () {
        const a = document.createElement('a');
        a.style.display = 'none';
        a.href = this.result;
        a.download = name;
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a);
      };
    }
  };
};

/**
 * 下载excel
 * @param {blob} fileArrayBuffer 文件流
 * @param {String} filename 文件名称
 */
export const downloadXls = (fileArrayBuffer, filename) => {
  downloadFile(fileArrayBuffer, filename, 'application/vnd.ms-excel,charset=utf-8');
};

/**
 * 下载json
 * @param {blob} fileArrayBuffer 文件流
 * @param {String} filename 文件名称
 */
export const downloadJson = (fileArrayBuffer, filename) => {
  downloadFile(fileArrayBuffer, filename, 'application/json,charset=utf-8');
};

/**
 * 下载文件
 * @param fileArrayBuffer 文件流
 * @param filename 文件名
 * @param mimeType 文件类型
 */
export const downloadFile = (fileArrayBuffer, filename, mimeType = 'application/octet-stream') => {
  let data = new Blob([fileArrayBuffer], { type: mimeType });
  if (typeof window.chrome !== 'undefined') {
    // Chrome
    let link = document.createElement('a');
    link.href = window.URL.createObjectURL(data);
    link.download = filename;
    link.click();
  } else if (typeof window.navigator.msSaveBlob !== 'undefined') {
    // IE
    let blob = new Blob([data], { type: 'application/force-download' });
    window.navigator.msSaveBlob(blob, filename);
  } else {
    // Firefox
    let file = new File([data], filename, { type: 'application/force-download' });
    window.open(URL.createObjectURL(file));
  }
};

/**
 * 通过URL下载文件
 * @param {String} url 文件URL
 * @param {String} filename 文件名
 */
export const downloadFileByUrl = (url, filename) => {
  const link = document.createElement('a');
  link.href = url;
  link.download = filename || '下载文件';
  link.style.display = 'none';
  document.body.appendChild(link);
  link.click();
  document.body.removeChild(link);
};

/**
 * 在 option 配置中查找指定 prop 的 column 对象
 * 支持两种格式：
 * 1. column 数组格式：[{ prop: 'xxx', ... }, ...]
 * 2. group 数组格式：[{ column: [...] }, ...] - group 中包含 column 数组
 * @param {Array} arr - column 数组或 group 数组
 * @param {string} prop - 要查找的 column 的 prop 值
 * @returns {Object|null} 返回找到的 column 对象引用，未找到返回 null
 */
export const findColumn = (arr, prop) => {
  if (!Array.isArray(arr) || arr.length === 0) {
    return null;
  }

  // 使用 flatMap 统一处理两种格式：
  // - group 格式：item.column 存在，展开为 column 数组
  // - column 格式：item.column 不存在，返回 item 本身
  return arr.flatMap(item => item.column || item).find(col => col.prop === prop) || null;
};
