import { NormalMapTypes } from "../constants.js";
import { Color, ColorRepresentation } from "../math/Color.js";
import { Vector2 } from "../math/Vector2.js";
import { Texture } from "../textures/Texture.js";
import { Material, MaterialParameters } from "./Material.js";

export interface MeshMatcapMaterialParameters extends MaterialParameters {
    color?: ColorRepresentation | undefined;
    matcap?: Texture | null | undefined;
    map?: Texture | null | undefined;
    bumpMap?: Texture | null | undefined;
    bumpScale?: number | undefined;
    normalMap?: Texture | null | undefined;
    normalMapType?: NormalMapTypes | undefined;
    normalScale?: Vector2 | undefined;
    displacementMap?: Texture | null | undefined;
    displacementScale?: number | undefined;
    displacementBias?: number | undefined;
    alphaMap?: Texture | null | undefined;
    fog?: boolean | undefined;
    flatShading?: boolean | undefined;
}

export class MeshMatcapMaterial extends Material {
    constructor(parameters?: MeshMatcapMaterialParameters);

    /**
     * Read-only flag to check if a given object is of type {@link MeshMatcapMaterial}.
     * @remarks This is a _constant_ value
     * @defaultValue `true`
     */
    readonly isMeshMatcapMaterial: true;

    /**
     * @default { 'MATCAP': '' }
     */
    defines: { [key: string]: any };

    /**
     * @default new THREE.Color( 0xffffff )
     */
    color: Color;

    /**
     * @default null
     */
    matcap: Texture | null;

    /**
     * @default null
     */
    map: Texture | null;

    /**
     * @default null
     */
    bumpMap: Texture | null;

    /**
     * @default 1
     */
    bumpScale: number;

    /**
     * @default null
     */
    normalMap: Texture | null;

    /**
     * @default THREE.TangentSpaceNormalMap
     */
    normalMapType: NormalMapTypes;

    /**
     * @default new Vector2( 1, 1 )
     */
    normalScale: Vector2;

    /**
     * @default null
     */
    displacementMap: Texture | null;

    /**
     * @default 1
     */
    displacementScale: number;

    /**
     * @default 0
     */
    displacementBias: number;

    /**
     * @default null
     */
    alphaMap: Texture | null;

    /**
     * Define whether the material is rendered with flat shading. Default is false.
     * @default false
     */
    flatShading: boolean;

    /**
     * Whether the material is affected by fog. Default is true.
     * @default fog
     */
    fog: boolean;

    setValues(parameters: MeshMatcapMaterialParameters): void;
}