apps/readest-app/src/utils/config.ts

import { ViewSettings } from '@/types/book';

export const getMaxInlineSize = (viewSettings: ViewSettings) => {
  const isVertical = viewSettings.vertical;
  const screenWidth = window.innerWidth;
  const screenHeight = window.innerHeight;

  const screenAspectRatio = isVertical ? screenHeight / screenWidth : screenWidth / screenHeight;
  const isUnfoldedScreen = screenAspectRatio < 1.3 && screenAspectRatio > 0.77 && screenWidth > 600;

  return isVertical
    ? Math.max(screenWidth, screenHeight, 720, viewSettings.maxInlineSize)
    : isUnfoldedScreen
      ? viewSettings.maxInlineSize * 0.8
      : viewSettings.maxInlineSize;
};

export const getDefaultMaxInlineSize = () => {
  if (typeof window === 'undefined') return 720;

  const screenWidth = window.innerWidth;
  const screenHeight = window.innerHeight;
  return screenWidth < screenHeight ? Math.max(screenWidth, 720) : 720;
};

export const getDefaultMaxBlockSize = () => {
  if (typeof window === 'undefined') return 1440;

  const screenWidth = window.innerWidth;
  const screenHeight = window.innerHeight;
  return Math.max(screenWidth, screenHeight, 1440);
};