import {deepFreeze, deepMerge} from '../utils/OptionsUtils.js';
import {DeepPartial, DeepReadonly} from '../utils/Types';

export class DepthMeshOptions {
  enabled = false;
  updateVertexNormals = false;
  showDebugTexture = false;
  useDepthTexture = false;
  renderShadow = false;
  shadowOpacity = 0.25;
  patchHoles = false;
  patchHolesUpper = false;
  // Opacity of the debug material.
  opacity = 1.0;
  useDualCollider = false;
  // Use downsampled geometry for raycast and collisions
  useDownsampledGeometry = true;
  // Whether to always update the full resolution geometry.
  updateFullResolutionGeometry = false;
  colliderUpdateFps = 5;
  /** FPS cap for depth mesh geometry updates. 0 = update every frame. */
  depthMeshUpdateFps = 0;
  depthFullResolution = 160;
  ignoreEdgePixels = 3;
}

export class DepthOptions {
  debugging = false;
  enabled = false;
  depthMesh = new DepthMeshOptions();
  depthTexture = {
    enabled: false,
    constantKernel: false,
    applyGaussianBlur: false,
    applyKawaseBlur: false,
  };
  // Occlusion pass.
  occlusion = {enabled: false};
  useFloat32 = true;
  depthTypeRequest: XRDepthType[] = ['raw'];
  matchDepthView = true;

  constructor(options?: DeepReadonly<DeepPartial<DepthOptions>>) {
    deepMerge(this, options);
  }
}

export const xrDepthMeshOptions = deepFreeze(
  new DepthOptions({
    enabled: true,
    depthMesh: {
      enabled: true,
      updateVertexNormals: false,
      showDebugTexture: false,
      useDepthTexture: false,
      renderShadow: false,
      shadowOpacity: 0.25,
      patchHoles: true,
      // Use downsampled geometry for raycast and collisions
      useDownsampledGeometry: true,
      // Whether to always update the full resolution geometry.
      updateFullResolutionGeometry: false,
      colliderUpdateFps: 5,
    },
  })
);

export const xrDepthMeshVisualizationOptions = deepFreeze(
  new DepthOptions({
    enabled: true,
    depthMesh: {
      enabled: true,
      updateVertexNormals: true,
      showDebugTexture: true,
      useDepthTexture: true,
      renderShadow: false,
      shadowOpacity: 0.25,
      patchHoles: true,
      opacity: 0.1,
      // Use downsampled geometry for raycast and collisions
      useDownsampledGeometry: true,
      // Whether to always update the full resolution geometry.
      updateFullResolutionGeometry: true,
      colliderUpdateFps: 5,
    },
    depthTexture: {
      enabled: true,
      constantKernel: true,
      applyGaussianBlur: true,
      applyKawaseBlur: true,
    },
  })
);

export const xrDepthMeshPhysicsOptions = deepFreeze(
  new DepthOptions({
    enabled: true,
    depthMesh: {
      enabled: true,
      updateVertexNormals: false,
      showDebugTexture: false,
      useDepthTexture: false,
      renderShadow: true,
      shadowOpacity: 0.25,
      patchHoles: true,
      patchHolesUpper: true,
      useDualCollider: false,
      // Use downsampled geometry for raycast and collisions
      useDownsampledGeometry: true,
      // Whether to always update the full resolution geometry.
      updateFullResolutionGeometry: false,
      colliderUpdateFps: 5,
    },
  })
);