/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export function isPrimitive(value: Object): boolean {
  if (typeof value === 'string' || typeof value === 'boolean' || typeof value === 'number') {
    return true;
  } else {
    return false;
  }
}

export function isNumberByReg(val: string): boolean {
  var regPos = /^\d+(\.\d+)?$/; //非负浮点数
  var regNeg = /^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$/; //负浮点数
  if (regPos.test(val) || regNeg.test(val)) {
    return true;
  } else {
    return false;
  }
}

export function isNumber(val: string): boolean {
  return !isNaN(Number(val));
}

export function isOneNum(val: string): boolean {
  if (val === '0'
  || val === '1'
  || val === '2'
  || val === '3'
  || val === '4'
  || val === '5'
  || val === '6'
  || val === '7'
  || val === '8'
  || val === '9') {
    return true;
  } else {
    return false
  }
}

export function containsField(object: Object, field: string) {
  if (object instanceof Array) {
    for (let item of object) {
      if (item === field) {
        return true;
      }
    }
  } else {
    for (let key in object) {
      if (key == field) {
        return true;
      }
    }
  }
  return false;
}

export function getString(buffer: Array<string>, start: number, len: number): string {
  let result = [];
  if (buffer != null && start >= 0 && start + len <= buffer.length) {
    result = buffer.slice(start, start + len);
  }
  return result.join("");
}

export function isBlank(cs: string): boolean {
  if (cs == null || cs.length == 0) {
    return true;
  }
  for (let i = 0; i < cs.length; i++) {
    if (!isWhitespace(cs.charAt(i))) {
      return false;
    }
  }
  return true;
}

export function countMatches(str: string, ch: string) {
  if (isEmpty(str) || ch == null || ch.length != 1) {
    return 0;
  }
  let count = 0;
  for (let i = 0; i < str.length; i++) {
    if (ch == str.charAt(i)) {
      count++;
    }
  }
  return count;
}

export function removeStart(str: string, remove: string) {
  if (isEmpty(str) || isEmpty(remove)) {
    return str;
  }
  if (str.startsWith(remove)) {
    return str.substring(remove.length);
  }
  return str;
}

export function removeEnd(str: string, remove: string) {
  if (isEmpty(str) || isEmpty(remove)) {
    return str;
  }
  if (str.endsWith(remove)) {
    return str.substring(0, str.length - remove.length);
  }
  return str;
}

export function arrayRemove<T>(list: Array<T>, remove: T): boolean {
  if (list == null || list.length == 0 || remove == null) {
    return false;
  }
  let index = list.indexOf(remove);
  if (index != -1) {
    list.splice(index, 1);
    return true;
  } else {
    return false;
  }
}

export function arrayCopy<T>(src: Array<T>, srcPos: number, des: Array<T>, desPos: number, len: number): boolean {
  if (len <= 0 || srcPos + len >= src.length || desPos + len >= src.length) {
    return;
  }
  for (let i = 0; i < len; i++) {
    des[i + desPos] = src[i + srcPos];
  }
}

export function isEmpty(cs: string) {
  return cs == null || cs.length == 0;
}


export function getDefaultLocale() {
  return 'zh_CN.UTF-8/UTF-8'
}

export function isWhitespace(cs: string): boolean {
  if (cs == null) {
    return false;
  }
  let sz: number = cs.length;
  for (let i = 0;i < sz; i++) {
    if (cs.charAt(i) != ' ' && cs.charAt(i) != '\t' && cs.charAt(i) != '\n' && cs.charAt(i) != '\r') {
      return false;
    }
  }
  return true;
}

export function compareArray<T>(a: Array<T>, b: Array<T>): boolean {
  if (a == null || b == null) {
    return false;
  }
  if (a.length == b.length && a.toString() == b.toString()) {
    return true;
  }
  return false;
}

export function compareType(a: Object, b: Object): boolean {
  let aProps = Object.getOwnPropertyNames(a);
  let bProps = Object.getOwnPropertyNames(b);

  if (aProps.length != bProps.length) {
    return false;
  }

  for (let i in aProps) {
    if (bProps.indexOf(aProps[i]) == -1) {
      return false;
    }
  }
  return true;
}

export function dateFormat(dateTime: Date | number, formatString: string): string {
  if (dateTime == null || formatString == null) {
    return null;
  }
  let date: Date = null;
  if (dateTime instanceof Date) {
    date = dateTime;
  } else {
    date = new Date(dateTime)
  }
  var o = {
    "M+": date.getMonth() + 1, // month
    "d+": date.getDate(), // day
    "h+": date.getHours(), // hour
    "m+": date.getMinutes(), // minute
    "s+": date.getSeconds(), // second
    "q+": Math.floor((date.getMonth() + 3) / 3), // quarter
    "S": date.getMilliseconds()
  }
  if (/(Y+|y+)/.test(formatString)) {
    formatString = formatString.replace(RegExp.$1, (date.getFullYear() + "")
      .substr(4 - RegExp.$1.length));
  }
  for (var k in o) {
    if (new RegExp("(" + k + ")").test(formatString)) {
      formatString = formatString.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
    }
  }
  return formatString;
}