import { isFunction } from 'lodash';
import { ElMessage } from 'element-plus';
/**
 * Created by PanJiaChen on 16/11/18.
 */

/**
 * Parse the time to string
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string | null}
 */
export function parseTime(time, cFormat) {
  if (arguments.length === 0 || !time) {
    return null;
  }
  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}';
  let date;
  if (typeof time === 'object') {
    date = time;
  } else {
    if (typeof time === 'string') {
      if (/^[0-9]+$/.test(time)) {
        // support "1548221490638"
        time = parseInt(time);
      } else {
        // support safari
        // https://stackoverflow.com/questions/4310953/invalid-date-in-safari
        time = time.replace(new RegExp(/-/gm), '/');
      }
    }

    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(/{([ymdhisa])+}/g, (result, key) => {
    const value = formatObj[key];
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') {
      return ['日', '一', '二', '三', '四', '五', '六'][value];
    }
    return value.toString().padStart(2, '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 = decodeURIComponent(url.split('?')[1]).replace(/\+/g, ' ');
  if (!search) {
    return {};
  }
  const obj = {};
  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) {
  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 const timeParse = (obj = new Date(), format = 'YYYY-MM-DD HH:mm:ss') => {
  obj = new Date(obj);
  const year = obj.getFullYear();
  const mon =
    obj.getMonth() + 1 < 10 ? '0' + (obj.getMonth() + 1) : obj.getMonth() + 1;
  const day = obj.getDate() < 10 ? '0' + obj.getDate() : obj.getDate();
  const hour = obj.getHours() < 10 ? '0' + obj.getHours() : obj.getHours();
  const min = obj.getMinutes() < 10 ? '0' + obj.getMinutes() : obj.getMinutes();
  const second =
    obj.getSeconds() < 10 ? '0' + obj.getSeconds() : obj.getSeconds();

  format = format
    .replace('YYYY', year + '')
    .replace('MM', mon + '')
    .replace('DD', day + '')
    .replace('HH', hour + '')
    .replace('mm', min + '')
    .replace('ss', second + '');

  return format;
};

export const calculateDuration = (createTime) => {
  if (!createTime) {
    return '--';
  }

  const create = new Date(createTime);
  if (isNaN(create.getTime())) {
    return '--';
  }

  const now = new Date();
  const diff = now - create; // 时间差（毫秒）

  const seconds = Math.floor((diff / 1000) % 60);
  const minutes = Math.floor((diff / 1000 / 60) % 60);
  const hours = Math.floor((diff / 1000 / 60 / 60) % 24);
  const days = Math.floor(diff / 1000 / 60 / 60 / 24);

  let duration = '';
  if (days > 0) duration += `${days} 天 `;
  if (hours > 0) duration += `${hours} 小时 `;
  if (minutes > 0) duration += `${minutes} 分钟 `;
  if (seconds > 0 || duration === '') duration += `${seconds} 秒`;

  return duration.trim();
};
//可指定长度，生成随机id
export function getRandomId(length) {
  const characters =
    'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
  let randomId = '';

  for (let i = 0; i < length; i++) {
    const randomIndex = Math.floor(Math.random() * characters.length);
    randomId += characters.charAt(randomIndex);
  }

  return randomId;
}

export const parseMemory = (memory) => {
  return +memory + ' GB';
};

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

export const renderProps = (fn, props) => {
  if (isFunction(fn)) {
    return fn(props);
  }
  return fn;
};

export const getDaysInRange = (startDate, endDate) => {
  const result = [];
  let currentDate = new Date(startDate);

  while (currentDate <= endDate) {
    const formattedDate = currentDate.toISOString().split('T')[0]; // 获取年月日部分并格式化
    result.push(formattedDate);
    currentDate.setDate(currentDate.getDate() + 1);
  }

  return result;
};

export const getRandom = (max) => {
  return Math.floor(Math.random() * max);
};

export const getDaysInMonth = (yearMonth) => {
  const [year, month] = yearMonth.split('-').map(Number);
  const currentDate = new Date();
  const currentYear = currentDate.getFullYear();
  const currentMonth = currentDate.getMonth() + 1;
  const currentDay = currentDate.getDate();
  const isCurrentMonth = year === currentYear && month === currentMonth;
  const daysInMonth = isCurrentMonth
    ? currentDay - 1
    : new Date(year, month, 0).getDate();
  const daysArray = [];

  for (let day = 1; day <= daysInMonth; day++) {
    const formattedDay = `${month.toString().padStart(2, '0')}-${day
      .toString()
      .padStart(2, '0')}`;
    daysArray.push(formattedDay);
  }

  return daysArray;
};

export const getMonthsInYear = (year) => {
  const currentDate = new Date();
  const currentYear = currentDate.getFullYear();
  const currentMonth = currentDate.getMonth() + 1;
  const monthsArray = [];

  for (let month = 1; month <= 12; month++) {
    if (+year === currentYear && month > currentMonth) {
      break; // 如果是当前年份且月份大于当前月份，停止循环
    }
    const formattedMonth = `${year}-${month.toString().padStart(2, '0')}`;
    monthsArray.push(formattedMonth);
  }

  return monthsArray;
};

export const getDataByPath = (obj, path) => {
  // 使用正则表达式分割路径字符串
  const keys = path.split('.');

  // 遍历路径，逐层深入对象
  let result = obj;
  for (const key of keys) {
    if (result && typeof result === 'object' && key in result) {
      result = result[key];
    } else {
      // 如果路径无效，返回 undefined 或者其他默认值
      return undefined;
    }
  }

  return result;
};

export function daysSince(dateString) {
  // 将传入的日期字符串转换为Date对象
  const pastDate = new Date(dateString);
  // 获取当前日期
  const currentDate = new Date();

  // 计算两个日期之间的时间差，得到的结果是毫秒数
  const timeDifference = currentDate - pastDate;

  // 将时间差从毫秒转换为天，1天 = 24小时 * 60分钟 * 60秒 * 1000毫秒
  const daysDifference = Math.floor(timeDifference / (1000 * 60 * 60 * 24));

  return daysDifference;
}

export function copy(str) {
  const textarea = document.createElement('textarea');
  textarea.value = str;
  document.body.appendChild(textarea);
  textarea.select();
  document.execCommand('copy');
  document.body.removeChild(textarea);

  ElMessage.success('复制成功');
}

export function roundToDecimal(num, decimalPlaces) {
  if (typeof num !== 'number' || typeof decimalPlaces !== 'number') {
    throw new TypeError('参数必须是数字');
  }

  // 判断是否是小数
  if (num % 1 !== 0) {
    // 进行四舍五入
    const factor = Math.pow(10, decimalPlaces);
    return Math.round(num * factor) / factor;
  }

  // 如果不是小数，返回原数字
  return num;
}

export function toBoolean(str) {
  return str === 'true';
}

export const clearEdges = (items) =>
  items.map((item) => ({
    ...item,
    children: clearEdges(item.edges.children),
  }));

// 字节转GB
export const bytesToGB = (bytes) => {
  if (bytes === '' || bytes === undefined || bytes === null) {
    return '';
  }
  return Math.round(bytes / (1024 * 1024 * 1024));
};

export function parseUrl(url) {
  const [pathname, queryString] = url.split('?');
  const query = {};

  if (queryString) {
    queryString.split('&').forEach(pair => {
      const [key, value] = pair.split('=');
      query[decodeURIComponent(key)] = decodeURIComponent(value || '');
    });
  }

  return { pathname, query };
}

export function formatSmartPercentage(value) {
  if (value === 0) return '0';

  // 整数直接返回
  if (Number.isInteger(value)) return value.toString();

  const str = value.toString();
  const decimal = str.split('.')[1] || '';

  // 统计前导0的个数
  let leadingZeros = 0;
  for (const char of decimal) {
    if (char === '0') {
      leadingZeros++;
    } else {
      break;
    }
  }

  const keep = leadingZeros + 2; // 0 的个数 + 1 位有效数字 + 1 位补充位
  const rounded = value.toFixed(keep);

  return parseFloat(rounded).toString(); // 去除多余的 0 和小数点
}

export function getFirstNonEmptyArray(arrays, defaultValue = []) {
  for (const arr of arrays) {
    if (arr && arr.length > 0) {
      return arr;
    }
  }
  return defaultValue;
}
