import Taro from '@tarojs/taro'

export function getNavMetrics () {
  const sys = Taro.getSystemInfoSync()
  const statusBarHeight = sys.statusBarHeight || 20
  if (Taro.getEnv() === Taro.ENV_TYPE.WEAPP) {
    const menu = Taro.getMenuButtonBoundingClientRect()
    const gap = Math.max((menu.top || statusBarHeight) - statusBarHeight, 4)
    return {
      statusBarHeight,
      navBarHeight: (menu.height || 32) + gap * 2,
      paddingRight: Math.max((sys.windowWidth || 375) - (menu.left || 280) + 12, 24),
    }
  }
  return {
    statusBarHeight,
    navBarHeight: 44,
    paddingRight: 24,
  }
}