get snapLine()

in packages/core/src/models/SpaceBlock.ts [139:198]
60 lines of code
5 McCabe index (conditional complexity)

  get snapLine() {
    if (!this.isometrics.length) return
    const nextRect = this.next.rect
    const referRect = this.referRect
    let line: LineSegment
    if (this.type === 'top') {
      line = new LineSegment(
        {
          x: nextRect.left,
          y: referRect.bottom + nextRect.height,
        },
        {
          x: nextRect.right,
          y: referRect.bottom + nextRect.height,
        }
      )
    } else if (this.type === 'bottom') {
      line = new LineSegment(
        {
          x: nextRect.left,
          y: referRect.top - nextRect.height,
        },
        {
          x: nextRect.right,
          y: referRect.top - nextRect.height,
        }
      )
    } else if (this.type === 'left') {
      line = new LineSegment(
        {
          x: referRect.right + nextRect.width,
          y: nextRect.top,
        },
        {
          x: referRect.right + nextRect.width,
          y: nextRect.bottom,
        }
      )
    } else {
      line = new LineSegment(
        {
          x: referRect.left - nextRect.width,
          y: nextRect.top,
        },
        {
          x: referRect.left - nextRect.width,
          y: nextRect.bottom,
        }
      )
    }
    const distance = calcDistanceOfSnapLineToEdges(
      line,
      this.helper.dragNodesEdgeLines
    )
    return new SnapLine(this.helper, {
      ...line,
      distance,
      type: 'space-block',
    })
  }