import { vtkAlgorithm, vtkObject, vtkSubscription } from './../../interfaces';
import { HtmlDataAccessHelper } from './../Core/DataAccessHelper/HtmlDataAccessHelper';
import { HttpDataAccessHelper } from './../Core/DataAccessHelper/HttpDataAccessHelper';
import { JSZipDataAccessHelper } from './../Core/DataAccessHelper/JSZipDataAccessHelper';
import { LiteHttpDataAccessHelper } from './../Core/DataAccessHelper/LiteHttpDataAccessHelper';

interface IOBJReaderOptions {
  binary?: boolean;
  compression?: string;
  progressCallback?: any;
}

/**
 *
 */
export interface IOBJReaderInitialValues {
  numberOfOutputs?: number;
  requestCount?: number;
  splitMode?: string;
}

type vtkOBJReaderBase = vtkObject &
  Omit<
    vtkAlgorithm,
    | 'getInputData'
    | 'setInputData'
    | 'setInputConnection'
    | 'getInputConnection'
    | 'addInputConnection'
    | 'addInputData'
  >;

/**
 * Convenient method to get the id of all duplicated points.
 * Relies on a "Duplicates" array that contains the id of:
 * 	- the first duplicate id for the original point (or self Id if there is no duplicate)
 *  - the original id for the duplicate points
 * Duplicated points must be adjacent to each other.
 * Example:
 * 	- Points: [pt0, pt1, pt2, pt3, pt1d0, pt1d1, pt1d3, pt3d1, pt3d2]
 *  - Duplicates: [0, 4, 2, 3, 1, 1, 1, 3, 3]
 * Expected results:
 *  - getPointDuplicateIds(p, 1) => [1, 4, 5, 6]
 *  - getPointDuplicateIds(p, 0) => [0]
 *  - getPointDuplicateIds(p, 5) => [1, 4, 5, 6]
 * @param polydata A polydata generated by the OBJReader
 * @param pointId A point Id (duplicated or not)
 */
export function getPointDuplicateIds(
  polydata: any,
  pointId: number
): Array<number>;

export interface vtkOBJReader extends vtkOBJReaderBase {
  /**
   *
   */
  getBaseURL(): string;

  /**
   *
   */
  getDataAccessHelper():
    | HtmlDataAccessHelper
    | HttpDataAccessHelper
    | JSZipDataAccessHelper
    | LiteHttpDataAccessHelper;

  /**
   * Get the url of the object to load.
   */
  getUrl(): string;

  /**
   *
   */
  getSplitMode(): number;

  /**
   * True if duplicates are tracked in output polydata.
   */
  getTrackDuplicates(): boolean;

  /**
   *
   * @param {Boolean} busy
   */
  invokeBusy(busy: boolean): void;

  /**
   *
   */
  isBusy(): number;

  /**
   * Load the object data.
   * @param {IOBJReaderOptions} [options]
   */
  loadData(options?: IOBJReaderOptions): Promise<any>;

  /**
   *
   * @param callback
   */
  onBusy(callback: (busy: boolean) => any): vtkSubscription;

  /**
   * Parse data as text.
   * @param {String} content The content to parse.
   */
  parseAsText(content: string): void;

  /**
   *
   * @param inData
   * @param outData
   */
  requestData(inData: any, outData: any): void;

  /**
   *
   * @param dataAccessHelper
   */
  setDataAccessHelper(
    dataAccessHelper:
      | HtmlDataAccessHelper
      | HttpDataAccessHelper
      | JSZipDataAccessHelper
      | LiteHttpDataAccessHelper
  ): boolean;

  /**
   * String in OBJ file used to split in multiple output polydata.
   * @param {Null | String} splitMode
   */
  setSplitMode(splitMode: string): boolean;

  /**
   * Set to true to be able to use getPointDuplicateIds() on output polydata.
   * Requires splitMode to not be null.
   * @param trackDuplicates true or false (false by default)
   * @see getPointDuplicateIds(), setSplitMode()
   */
  setTrackDuplicates(trackDuplicates: boolean): boolean;

  /**
   * Set the url of the object to load.
   * @param {String} url the url of the object to load.
   * @param {IOBJReaderOptions} [option] The OBJ reader options.
   */
  setUrl(url: string, option?: IOBJReaderOptions): Promise<string>;
}

/**
 * Method used to decorate a given object (publicAPI+model) with vtkOBJReader characteristics.
 *
 * @param publicAPI object on which methods will be bounds (public)
 * @param model object on which data structure will be bounds (protected)
 * @param {IOBJReaderInitialValues} [initialValues] (default: {})
 */
export function extend(
  publicAPI: object,
  model: object,
  initialValues?: IOBJReaderInitialValues
): void;

/**
 * Method used to create a new instance of vtkOBJReader
 * @param {IOBJReaderInitialValues} [initialValues] for pre-setting some of its content
 */
export function newInstance(
  initialValues?: IOBJReaderInitialValues
): vtkOBJReader;

/**
 * The vtkOBJReader aims to read a text file formatted as below and create
 * a bumpy plane based on the elevation defined in that file. If a line has 10
 * elevation values, that means the plane will have 10 points along the X axis.
 * If the file has 5 lines, that means the plane will have 5 points along the Y
 * axis.
 *
 * ```
 * 1 2 3 4 5
 * 5 4 3 2 1
 * 1 2 3 4 5
 * 5 4 3 2 1
 * 1 2 3 4 5
 * ```
 *
 * Each number represents an elevation on a uniform grid where a line
 * (horizontal) define the elevations along the X axis. With that in mind, new
 * lines (vertical) define the elevations along the Y axis and the actual number
 * is the elevation along Z.
 *
 * In order to properly represent that in world coordinates, you can provide an
 * `origin` which will define the coordinate of the first point without its
 * elevation. Then you need to describe how much you should move along X and Y
 * between two elevations definition. For that we use `xSpacing` and `ySpacing`.
 * Since the elevation is given to us as a number, we can scale it via
 * `zScaling`. Finally you may decide that your grid should move along positive
 * X and negative Y while reading the file. The `xDirection` and `yDirection`
 * are meant to give you control on that end.
 */
export declare const vtkOBJReader: {
  newInstance: typeof newInstance;
  extend: typeof extend;
};
export default vtkOBJReader;