import {
    IsInt,
    IsObject
} from "class-validator";
import { Runner } from '../entities/Runner';
import { ResponseObjectType } from '../enums/ResponseObjectType';
import { IResponse } from './IResponse';
import { ResponseParticipant } from './ResponseParticipant';
import { ResponseRunnerGroup } from './ResponseRunnerGroup';

/**
 * Defines the runner response.
*/
export class ResponseRunner extends ResponseParticipant implements IResponse {
    /**
    * The responseType.
    * This contains the type of class/entity this response contains.
    */
    responseType: ResponseObjectType = ResponseObjectType.RUNNER;

    /**
     * The runner's currently ran distance in meters.
     */
    @IsInt()
    distance: number;

    /**
     * The runner's group.
     */
    @IsObject()
    group: ResponseRunnerGroup;

    /**
     * Creates a ResponseRunner object from a runner.
     * @param runner The user the response shall be build for.
     */
    public constructor(runner: Runner) {
        super(runner);
        if (!runner.scans) { this.distance = 0 }
        else { this.distance = runner.validScans.reduce((sum, current) => sum + current.distance, 0); }
        if (runner.group) { this.group = runner.group.toResponse(); }
    }
}