import {Point} from '../../../math/geometry/point'

import {AxisEdge} from './AxisEdge'

export class AxisEdgesContainer {
  edges: Set<AxisEdge> = new Set<AxisEdge>()

  get Edges(): Iterable<AxisEdge> {
    return this.edges
  }

  // it is not necessarely the upper point but some point above the source

  UpPoint: Point

  AddEdge(edge: AxisEdge) {
    this.UpPoint = edge.TargetPoint
    /*Assert.assert(!this.edges.has(edge))*/
    this.edges.add(edge)
  }

  constructor(source: Point) {
    this.Source = source
  }

  Source: Point
  RemoveAxis(edge: AxisEdge) {
    /*Assert.assert(this.edges.has(edge))*/
    this.edges.delete(edge)
  }

  IsEmpty(): boolean {
    return this.edges.size === 0
  }
}