import vtkAbstractImageMapper, {
  IAbstractImageMapperInitialValues,
} from './AbstractImageMapper';
import IClosestIJKAxis from './ImageMapper';
import { Bounds, Nullable } from './../../types';
import { SlicingMode } from './ImageMapper/Constants';
import vtkImageData from './../../Common/DataModel/ImageData';
import vtkCollection from './../../Common/DataModel/Collection';
import CoincidentTopologyHelper, {
  StaticCoincidentTopologyMethods,
} from './Mapper/CoincidentTopologyHelper';

interface ISliceToSubSlice {
  imageIndex: number;
  subSlice: number;
}

export interface IImageArrayMapperInitialValues
  extends IAbstractImageMapperInitialValues {
  slicingMode: SlicingMode.K;
  sliceToSubSliceMap: ISliceToSubSlice[];
}

export interface vtkImageArrayMapper
  extends vtkAbstractImageMapper,
    CoincidentTopologyHelper {
  /**
   *
   * @param inputData set input as a vtkCollection of vtkImageData objects.
   */
  setInputData(inputData: vtkCollection): void;

  /**
   *  Get vtkImageData corresponding to the provided (global) slice number.
   * @param slice (global) slice number. If a slice number is not provided,
   * the function uses the current slice number (i.e. the output of getSlice()).
   */
  getImage(slice?: number): Nullable<vtkImageData>;

  /**
   * Return currently active image. This depends on the currently active slice number.
   */
  getCurrentImage(): Nullable<vtkImageData>;

  /**
   * Get the bounds for this mapper as [xmin, xmax, ymin, ymax,zmin, zmax].
   * @return {Bounds} The bounds for the mapper.
   */
  getBounds(): Bounds;

  /**
   * Get the bounds for a given slice as [xmin, xmax, ymin, ymax,zmin, zmax].
   * @param {Number} [slice] The slice index. If undefined, the current slice is considered.
   * @param {Number} [halfThickness] Half the slice thickness in index space (unit voxel
   * spacing). If undefined, 0 is considered.
   * @return {Bounds} The bounds for a given slice.
   */
  getBoundsForSlice(slice?: number, halfThickness?: number): Bounds;

  /**
   * Get the closest IJK axis
   * @return {IClosestIJKAxis} The axis object.
   */
  getClosestIJKAxis(): IClosestIJKAxis;

  /**
   * Calculate the total number of slices in the input collection.
   */
  computeTotalSlices(): number;

  /**
   * Fetch the pre-calculated total number of slices in the input collection.
   */
  getTotalSlices(): number;

  /**
   *
   * @param {Number} slice The slice index.
   */
  setSlice(slice: number): boolean;

  /**
   * Calculate the global slice number that corresponds to the provided image and subSlice number.
   * The global slice number corresponds to the total number of 2D image frames that a collection has.
   * @param imageIndex The image number is the index of the vtkImageData object in the input collection.
   * @param subSlice The subSlice number is the k-index of a slice within a vtkImageData object in the input collection.
   */
  computeSlice(imageIndex: number, subSlice: number): number;

  /**
   * Get the vtkImageData index corresponding to the provided global slice number.
   * @param slice global slice number. If a slice number is not provided,
   * the function uses the current slice number (i.e. the output of getSlice()).
   */
  getImageIndex(slice?: number): number;

  /**
   * Given a global slice number, identify the subSlice number (slice k-index within a vtkImageData).
   * @param slice global slice number. If a slice number is not provided,
   * the function uses the current slice number (i.e. the output of getSlice()).
   */
  getSubSlice(slice?: number): number;

  /**
   * Set the slicing mode.
   * @param {Number} mode The slicing mode.
   */
  setSlicingMode(mode: number): boolean;

  /**
   *
   * @param {Number[]} p1 The coordinates of the first point.
   * @param {Number[]} p2 The coordinates of the second point.
   */
  intersectWithLineForPointPicking(p1: number[], p2: number[]): any;

  /**
   *
   * @param {Number[]} p1 The coordinates of the first point.
   * @param {Number[]} p2 The coordinates of the second point.
   */
  intersectWithLineForCellPicking(p1: number[], p2: number[]): any;
}

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

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

/**
 * vtkImageArrayMapper provides display support for a collection of single/multi-frame images.
 * Images can have variable dimensions (width, height, depth in pixels), can be mixture of
 * color (RGB) and grayscale images, origin point and direction cosines.
 * It can be associated with a vtkImageSlice prop and placed within a Renderer.
 *
 * This class resolves coincident topology with the same methods as vtkMapper.
 */
export declare const vtkImageArrayMapper: {
  newInstance: typeof newInstance;
  extend: typeof extend;
  SlicingMode: typeof SlicingMode;
} & StaticCoincidentTopologyMethods;
export default vtkImageArrayMapper;
