function isObject(value: any) {
  return typeof value === 'object' && !Array.isArray(value)
}
// 比较两个对象，并提取出不同的部分
function getTwoObjectDiff(originalObj: Record<string, any>, diffObj: Record<string, any>): Record<any, string> {
  if (!isObject(originalObj) || !isObject(diffObj)) {
    return diffObj
  }
  const diff: Record<string, any> = {}
  for (const key in diffObj) {
    const originalValue = originalObj[key]
    const diffValue = diffObj[key]
    if (JSON.stringify(originalValue) !== JSON.stringify(diffValue)) {
      if (isObject(originalValue) && isObject(diffValue)) {
        const nestedDiff = getTwoObjectDiff(originalValue, diffValue)
        if (Object.keys(nestedDiff).length > 0) {
          diff[key] = nestedDiff
        }
      }
      else {
        diff[key] = diffValue
      }
    }
  }
  return diff
}

/**
 * 在指定范围内生成指定数量的随机整数
 * @param count 指定数量
 * @param max 指定范围
 *
 * 示例： 生成10以内的4个随机整数
 * let randomNumbers = generateRandomNumbers(4, 10)
 */
function generateRandomNumbers(count: number, max: number): number[] {
  const numbers = new Set()
  while (numbers.size < count) {
    numbers.add(Math.floor(Math.random() * max) + 1)
  }
  return Array.from(numbers) as number[]
}

/**
 * 毫秒数转时分秒
 * @param fmtSeconds
 */
function formatSeconds(fmtSeconds: number): string {
  const hours = Math.floor(fmtSeconds / (1000 * 60 * 60))
  const minutes = Math.floor((fmtSeconds % (1000 * 60 * 60)) / (1000 * 60))
  const seconds = Math.floor((fmtSeconds % (1000 * 60)) / 1000)

  if (hours === 0) {
    if (hours === 0 && minutes === 0) {
      return `${seconds.toString().padStart(2, '0')}秒`
    }
    else {
      return `${minutes.toString().padStart(2, '0')}分 ${seconds.toString().padStart(2, '0')}秒`
    }
  }
  return `${hours.toString().padStart(2, '0')}时 ${minutes.toString().padStart(2, '0')}分 ${seconds.toString().padStart(2, '0')}秒`
}

function isAndroidOrIos(): 'android' | 'ios' | 'unknown' {
  const userAgent = navigator.userAgent.toLowerCase()

  if (/iphone|ipad|ipod/.test(userAgent)) {
    return 'ios'
  }
  else if (/android/.test(userAgent)) {
    return 'android'
  }

  return 'unknown'
}

export {
  getTwoObjectDiff,
  generateRandomNumbers,
  formatSeconds,
  isAndroidOrIos,
}