import { PrimaryGeneratedColumn, Column, ManyToOne, Entity, ChildEntity } from "typeorm";
import {
  IsBoolean,
  IsDateString,
  IsInt,
  IsNotEmpty,
  IsOptional,
  IsPositive,
} from "class-validator";
import { Scan } from "./Scan";
import { Runner } from "./Runner";
import { Track } from "./Track";
import { RunnerCard } from "./RunnerCard";
import { ScanStation } from "./ScanStation";

/**
 * Defines the scan interface.
*/
@ChildEntity()
export class TrackScan extends Scan {
  /**
   * The associated track.
   */
  @IsNotEmpty()
  @ManyToOne(() => Track, track => track.scans, { nullable: true })
  track: Track;

  /**
   * The associated card.
   */
  @IsNotEmpty()
  @ManyToOne(() => RunnerCard, card => card.scans, { nullable: true })
  card: RunnerCard;

  /**
   * The scanning station.
   */
  @IsNotEmpty()
  @ManyToOne(() => ScanStation, station => station.scans, { nullable: true })
  station: ScanStation;

  /**
   * The scan's distance in meters.
   */
  @IsInt()
  @IsPositive()
  public get distance(): number {
    return this.track.distance;
  }

  /**
   * The scan's creation timestamp.
   */
  @Column()
  @IsDateString()
  @IsNotEmpty()
  timestamp: string;
}