import {
    MagnificationTextureFilter,
    Mapping,
    MinificationTextureFilter,
    PixelFormat,
    TextureDataType,
    Wrapping,
} from "../constants.js";
import { TypedArray } from "../core/BufferAttribute.js";
import { Texture } from "./Texture.js";

/**
 * Creates a texture directly from raw data, width and height.
 * @example
 * ```typescript
 * // create a buffer with color data
 * const width = 512;
 * const height = 512;
 * const size = width * height;
 * const data = new Uint8Array(4 * size);
 * const color = new THREE.Color(0xffffff);
 * const r = Math.floor(color.r * 255);
 * const g = Math.floor(color.g * 255);
 * const b = Math.floor(color.b * 255);
 * for (let i = 0; i & lt; size; i++) {
 *     const stride = i * 4;
 *     data[stride] = r;
 *     data[stride + 1] = g;
 *     data[stride + 2] = b;
 *     data[stride + 3] = 255;
 * }
 * // used the buffer to create a [name]
 * const texture = new THREE.DataTexture(data, width, height);
 * texture.needsUpdate = true;
 * ```
 * @see {@link https://threejs.org/docs/index.html#api/en/textures/DataTexture | Official Documentation}
 * @see {@link https://github.com/mrdoob/three.js/blob/master/src/textures/DataTexture.js | Source}
 */
export class DataTexture extends Texture<DataTextureImageData> {
    /**
     * @param data {@link https://developer.mozilla.org/en-US/docs/Web/API/ArrayBufferView | ArrayBufferView} of the texture. Default `null`.
     * @param width Width of the texture. Default `1`.
     * @param height Height of the texture. Default `1`.
     * @param format See {@link Texture.format | .format}. Default {@link THREE.RGBAFormat}
     * @param type See {@link Texture.type | .type}. Default {@link THREE.UnsignedByteType}
     * @param mapping See {@link Texture.mapping | .mapping}. Default {@link THREE.Texture.DEFAULT_MAPPING}
     * @param wrapS See {@link Texture.wrapS | .wrapS}. Default {@link THREE.ClampToEdgeWrapping}
     * @param wrapT See {@link Texture.wrapT | .wrapT}. Default {@link THREE.ClampToEdgeWrapping}
     * @param magFilter See {@link Texture.magFilter | .magFilter}. Default {@link THREE.NearestFilter}
     * @param minFilter  See {@link Texture.minFilter | .minFilter}. Default {@link THREE.NearestFilter}
     * @param anisotropy See {@link Texture.anisotropy | .anisotropy}. Default {@link THREE.Texture.DEFAULT_ANISOTROPY}
     * @param colorSpace See {@link Texture.colorSpace | .colorSpace}. Default {@link NoColorSpace}
     */
    constructor(
        data?: TypedArray | null,
        width?: number,
        height?: number,
        format?: PixelFormat,
        type?: TextureDataType,
        mapping?: Mapping,
        wrapS?: Wrapping,
        wrapT?: Wrapping,
        magFilter?: MagnificationTextureFilter,
        minFilter?: MinificationTextureFilter,
        anisotropy?: number,
        colorSpace?: string,
    );

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

    /**
     * @override
     * @defaultValue {@link THREE.NearestFilter}
     */
    magFilter: MagnificationTextureFilter;

    /**
     * @override
     * @defaultValue {@link THREE.NearestFilter}
     */
    minFilter: MinificationTextureFilter;

    /**
     * @override
     * @defaultValue `false`
     */
    flipY: boolean;

    /**
     * @override
     * @defaultValue `false`
     */
    generateMipmaps: boolean;

    /**
     * @override
     * @defaultValue `1`
     */
    unpackAlignment: number;
}

export interface DataTextureImageData {
    data: TypedArray | null;
    width: number;
    height: number;
}