import {
  Camera,
  Material,
  Mesh,
  MeshBasicMaterial,
  MeshPhongMaterial,
  Object3D,
  PlaneGeometry,
  Texture,
  Vector3,
  WebGLRenderer,
  Scene,
  WebGLRenderTarget,
} from 'three'

export interface UVBoxes {
  w: number
  h: number
  index: number
}

export interface LightMapContainers {
  basicMat: Material | Material[]
  object: Object3D
}

export class ProgressiveLightMap {
  renderer: WebGLRenderer
  res: number
  lightMapContainers: LightMapContainers[]
  compiled: boolean
  scene: Scene
  tinyTarget: WebGLRenderTarget
  buffer1Active: boolean
  firstUpdate: boolean
  warned: boolean

  progressiveLightMap1: WebGLRenderTarget
  progressiveLightMap2: WebGLRenderTarget

  uvMat: MeshPhongMaterial

  uv_boxes: UVBoxes[]

  blurringPlane: Mesh<PlaneGeometry, MeshBasicMaterial>

  labelMaterial: MeshBasicMaterial
  labelPlane: PlaneGeometry
  labelMesh: Mesh<PlaneGeometry, MeshBasicMaterial>

  constructor(renderer: WebGLRenderer, res?: number)

  addObjectsToLightMap(objects: Object3D[]): void

  update(camera: Camera, blendWindow?: number, blurEdges?: boolean): void

  showDebugLightmap(visible: boolean, position?: Vector3): void

  private _initializeBlurPlane(res: number, lightMap?: Texture | null): void
}