/*
 * Copyright (c) 2024-2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @file Defines 3D resource related interfaces
 * @kit ArkGraphics3D
 */

import { Vec2, Vec3, Vec4, Aabb } from './SceneTypes';
import { Callback } from '../@ohos.base';

/**
 * The enum of SceneResource type.
 *
 * @enum { number }
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export enum SceneResourceType {
  /**
   * The resource is an Unknown.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  UNKNOWN = 0,

  /**
   * The resource is a Node.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  NODE = 1,

  /**
   * The resource is an Environment.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  ENVIRONMENT = 2,

  /**
   * The resource is a Material.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  MATERIAL = 3,

  /**
   * The resource is a Mesh.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  MESH = 4,

  /**
   * The resource is an Animation.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  ANIMATION = 5,

  /**
   * The resource is a Shader.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  SHADER = 6,

  /**
   * The resource is an Image.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  IMAGE = 7,

  /**
   * The resource is a mesh resource
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 18
   */
  MESH_RESOURCE = 8,
}

/**
 * Define scene resource extended by other 3d resource.
 *
 * @interface SceneResource
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export interface SceneResource {
  /**
   * Scene resource name.
   *
   * @type { string }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  name: string;

  /**
   * Scene resource type.
   *
   * @type { SceneResourceType }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly resourceType: SceneResourceType;

  /**
   * Scene resource uri.
   *
   * @type { ?ResourceStr }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly uri?: ResourceStr;


  /**
   * Release scene resource.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  destroy(): void;
}

/**
 * Shader resource.
 *
 * @extends SceneResource
 * @interface Shader
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export interface Shader extends SceneResource {
  /**
   * Shader inputs.
   * 
   * @type { Record<string, number | Vec2 | Vec3 | Vec4 | Image> }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly inputs: Record<string, number | Vec2 | Vec3 | Vec4 | Image>;
}

/**
 * The enum of material type.
 *
 * @enum { number }
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export enum MaterialType {
  /**
   * The material type is a Shader.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  SHADER = 1,
}

/**
 * Material resource.
 *
 * @extends SceneResource
 * @interface Material
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export interface Material extends SceneResource {
  /**
   * Material resource type.
   *
   * @type { MaterialType }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly materialType: MaterialType;
}

/**
 * Shader material resource.
 *
 * @extends Material
 * @interface ShaderMaterial
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export interface ShaderMaterial extends Material {
  /**
   * Color shader of material.
   *
   * @type { ?Shader }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  colorShader?: Shader;
}

/**
 * Sub mesh resource.
 *
 * @interface SubMesh
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export interface SubMesh {
  /**
   * The name of the sub mesh.
   *
   * @type { string }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  name: string;

  /**
   * The material of the sub mesh.
   *
   * @type { Material }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  material: Material;

  /**
   * The axis aligned bounding box of the sub mesh.
   *
   * @type { Aabb }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly aabb: Aabb;
}

/**
 * Mesh resource.
 *
 * @extends SceneResource
 * @interface Mesh
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export interface Mesh extends SceneResource {
  /**
   * The sub meshes of the mesh.
   *
   * @type { SubMesh[] }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly subMeshes: SubMesh[];

  /**
   * The axis aligned bounding box of the mesh.
   *
   * @type { Aabb }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly aabb: Aabb;

  /**
   * The material override sub mesh's material.
   *
   * @type { ?Material }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  materialOverride?: Material;
}

/**
 * Mesh resource.
 * 
 * 
 * @extends SceneResource
 * @interface MeshResource
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 18
 */
export interface MeshResource extends SceneResource {
}

/**
 * Animation resource.
 *
 * @extends SceneResource
 * @interface Animation
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export interface Animation extends SceneResource {
  /**
   * The animation is enabled.
   *
   * @type { boolean }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  enabled: boolean;

  /**
   * The duration of the animation.
   *
   * @type { number }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly duration: number;

  /**
   * Whether the animation is running.
   *
   * @type { boolean }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly running: boolean;

  /**
   * The progress of the animation between 0~1.
   *
   * @type { number }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly progress: number;

  /**
   * Register a callback when animation finished.
   *
   * @param { Callback<void> } callback - the callback invoked when animation finished
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  onFinished(callback: Callback<void>): void;

  /**
   * Register a callback when animation started.
   *
   * @param { Callback<void> } callback - the callback invoked when animation started
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  onStarted(callback: Callback<void>): void;

  /**
   * Pause the animation.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  pause(): void;

  /**
   * Restart the animation.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  restart(): void;

  /**
   * Seek the animation to the position.
   *
   * @param { number } position - the position seek between 0~1
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  seek(position: number): void;

  /**
   * Start the animation.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  start(): void;

  /**
   * Stop the animation and seek the position to the beginning.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  stop(): void;

  /**
   * Finish the animation and seek the position to the end.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  finish(): void;
}

/**
 * The enum of environment background type.
 * @enum { number }
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export enum EnvironmentBackgroundType {
  /**
   * The background is none.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  BACKGROUND_NONE = 0,

  /**
   * The background is image.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  BACKGROUND_IMAGE = 1,

  /**
   * The background is cubemap.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  BACKGROUND_CUBEMAP = 2,

  /**
   * The background is equirectangular.
   *
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  BACKGROUND_EQUIRECTANGULAR = 3,
}

/**
 * Environment resource.
 *
 * @extends SceneResource
 * @interface Environment
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export interface Environment extends SceneResource {
  /**
   * The background type of the environment.
   *
   * @type { EnvironmentBackgroundType }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  backgroundType: EnvironmentBackgroundType;

  /**
   * The indirect diffuse factor of the environment.
   *
   * @type { Vec4 }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  indirectDiffuseFactor: Vec4;

  /**
   * The indirect specular factor of the environment.
   *
   * @type { Vec4 }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  indirectSpecularFactor: Vec4;

  /**
   * The environment map factor of the environment.
   *
   * @type { Vec4 }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  environmentMapFactor: Vec4;

  /**
   * The environment image of the environment.
   *
   * @type { ?(Image | null) }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  environmentImage?: Image | null;

  /**
   * The radiance image of the environment.
   *
   * @type { ?(Image | null) }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  radianceImage?: Image | null;

  /**
   * The irradiance coefficients (array of nine Vec3).
   *
   * @type { ?Vec3[] }
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  irradianceCoefficients?: Vec3[];
}

/**
 * Image resource.
 *
 * @extends SceneResource
 * @interface Image
 * @syscap SystemCapability.ArkUi.Graphics3D
 * @since 12
 */
export interface Image extends SceneResource {
  /**
   * The width of the image.
   *
   * @type { number }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly width: number;

  /**
   * The height of the image.
   *
   * @type { number }
   * @readonly
   * @syscap SystemCapability.ArkUi.Graphics3D
   * @since 12
   */
  readonly height: number;
}