export function calcSpaceBlockOfRect()

in packages/shared/src/coordinate.ts [387:443]

• 57 lines of code
• 20 McCabe index (conditional complexity)

export function calcSpaceBlockOfRect(
  target: IRect,
  source: IRect,
  type?: string
) {
  const targetRect = new Rect(target.x, target.y, target.width, target.height)
  const sourceRect = new Rect(source.x, source.y, source.width, source.height)
  if (sourceRect.bottom < targetRect.top && sourceRect.left > targetRect.right)
    return
  if (sourceRect.top > targetRect.bottom && sourceRect.left > targetRect.right)
    return
  if (sourceRect.bottom < targetRect.top && sourceRect.right < targetRect.left)
    return
  if (sourceRect.top > targetRect.bottom && sourceRect.right < targetRect.left)
    return
  if (sourceRect.bottom < targetRect.top) {
    const distance = targetRect.top - sourceRect.bottom
    const left = Math.min(sourceRect.left, targetRect.left)
    const right = Math.max(sourceRect.right, targetRect.right)
    if (type && type !== 'top') return
    return {
      type: 'top',
      distance,
      rect: new Rect(left, sourceRect.bottom, right - left, distance),
    }
  } else if (sourceRect.top > targetRect.bottom) {
    const distance = sourceRect.top - targetRect.bottom
    const left = Math.min(sourceRect.left, targetRect.left)
    const right = Math.max(sourceRect.right, targetRect.right)
    if (type && type !== 'bottom') return
    return {
      type: 'bottom',
      distance,
      rect: new Rect(left, targetRect.bottom, right - left, distance),
    }
  } else if (sourceRect.right < targetRect.left) {
    const distance = targetRect.left - sourceRect.right
    const top = Math.min(sourceRect.top, targetRect.top)
    const bottom = Math.max(sourceRect.bottom, targetRect.bottom)
    if (type && type !== 'left') return
    return {
      type: 'left',
      distance,
      rect: new Rect(sourceRect.right, top, distance, bottom - top),
    }
  } else if (sourceRect.left > targetRect.right) {
    const distance = sourceRect.left - targetRect.right
    const top = Math.min(sourceRect.top, targetRect.top)
    const bottom = Math.max(sourceRect.bottom, targetRect.bottom)
    if (type && type !== 'right') return
    return {
      type: 'right',
      distance,
      rect: new Rect(targetRect.right, top, distance, bottom - top),
    }
  }
}