import { TextureBase } from '@awayjs/renderer';

import { CompositeMethodBase } from './CompositeMethodBase';
import { SpecularBasicMethod } from './SpecularBasicMethod';

/**
 * SpecularCompositeMethod provides a base class for specular methods that wrap
 * a specular method to alter the calculated specular reflection strength.
 */
export class SpecularCompositeMethod extends CompositeMethodBase {
	/**
	 * Creates a new <code>SpecularCompositeMethod</code> object.
	 *
	 * @param modulateMethod The method which will add the code to alter the
	 * base method's strength. It needs to have the signature
	 * clampDiffuse(t:ShaderRegisterElement,
	 * regCache:ShaderRegisterCache):string, in which t.w will contain the
	 * diffuse strength.
	 * @param baseMethod The base specular method on which this method's shading
	 * is based.
	 */
	constructor(baseMethod: SpecularBasicMethod | SpecularCompositeMethod = null) {
		super(baseMethod);
	}

	public createBaseMethod(): SpecularBasicMethod {
		return new SpecularBasicMethod();
	}

	/**
	 * @inheritDoc
	 */
	public get gloss(): number {
		return (<SpecularBasicMethod> this._baseMethod).gloss;
	}

	public set gloss(value: number) {
		(<SpecularBasicMethod> this._baseMethod).gloss = value;
	}

	/**
	 * @inheritDoc
	 */
	public get strength(): number {
		return (<SpecularBasicMethod> this._baseMethod).strength;
	}

	public set strength(value: number) {
		(<SpecularBasicMethod> this._baseMethod).strength = value;
	}

	/**
	 * @inheritDoc
	 */
	public get color(): number {
		return (<SpecularBasicMethod> this._baseMethod).color;
	}

	/**
	 * @inheritDoc
	 */
	public set color(value: number) {
		(<SpecularBasicMethod> this._baseMethod).color = value;
	}

	/**
	 * @inheritDoc
	 */
	public get texture(): TextureBase {
		return (<SpecularBasicMethod> this._baseMethod).texture;
	}

	public set texture(value: TextureBase) {
		(<SpecularBasicMethod> this._baseMethod).texture = value;
	}
}