import {Service} from '@e22m4u/js-service';
import {ProjectDataOptions} from './project-data.js';
import {ProjectionSchemaDefinition} from './definitions/index.js';

import {
  ProjectionSchema,
  ProjectionSchemaName,
  ProjectionSchemaFactory,
} from './projection-schema.js';

/**
 * Data projector.
 */
export class DataProjector extends Service {
  /**
   * Define schema.
   *
   * @param schemaDef
   */
  defineSchema(schemaDef: ProjectionSchemaDefinition): this;

  /**
   * Has schema.
   * 
   * @param schemaName
   */
  hasSchema(schemaName: ProjectionSchemaName): boolean;

  /**
   * Project.
   *
   * @param schemaOrFactory
   * @param data
   * @param options
   */
  project<T>(
    schemaOrFactory:
      | ProjectionSchema
      | ProjectionSchemaFactory
      | ProjectionSchemaName,
    data: T,
    options?: Omit<ProjectDataOptions, 'resolver'>,
  ): T;
}