import { ViewModel } from "../contracts/view-models/ViewModel";
import { DurationFormatter } from '../formatters/DurationFormatter';
import { FinishFormatter } from '../formatters/FinishFormatter';
import type { RaceResultViewData } from "../view-data/RaceResultViewData";

export class RaceResultViewModel extends ViewModel {
  private readonly data: RaceResultViewData;

  constructor(data: RaceResultViewData) {
    super();
    this.data = data;
  }

  get driverId(): string { return this.data.driverId; }
  get driverName(): string { return this.data.driverName; }
  get avatarUrl(): string { return this.data.avatarUrl; }
  get position(): number { return this.data.position; }
  get startPosition(): number { return this.data.startPosition; }
  get incidents(): number { return this.data.incidents; }
  get fastestLap(): number { return this.data.fastestLap; }
  get positionChange(): number { return this.data.positionChange; }
  get isPodium(): boolean { return this.data.isPodium; }
  get isClean(): boolean { return this.data.isClean; }
  get id(): string { return this.data.id; }
  get raceId(): string { return this.data.raceId; }

  /** UI-specific: Display for position change */
  get positionChangeDisplay(): string {
    if (this.positionChange > 0) return `+${this.positionChange}`;
    if (this.positionChange < 0) return `${this.positionChange}`;
    return '0';
  }

  /** UI-specific: Color for position change */
  get positionChangeColor(): string {
    if (this.positionChange > 0) return 'green';
    if (this.positionChange < 0) return 'red';
    return 'gray';
  }

  /** UI-specific: Whether this is the winner */
  get isWinner(): boolean {
    return this.position === 1;
  }

  /** UI-specific: Whether has fastest lap */
  get hasFastestLap(): boolean {
    return this.fastestLap > 0;
  }

  /** UI-specific: Badge for position */
  get positionBadge(): string {
    return FinishFormatter.format(this.position);
  }

  /** UI-specific: Color for incidents badge */
  get incidentsBadgeColor(): string {
    if (this.incidents === 0) return 'green';
    if (this.incidents <= 2) return 'yellow';
    return 'red';
  }

  /** UI-specific: Formatted lap time */
  get lapTimeFormatted(): string {
    if (this.fastestLap <= 0) return '--:--.---';
    return DurationFormatter.formatSeconds(this.fastestLap);
  }

  /** Required by ResultsTable */
  getPositionChange(): number {
    return this.positionChange;
  }

  get formattedPosition(): string {
    return FinishFormatter.format(this.position);
  }

  get formattedStartPosition(): string {
    return FinishFormatter.format(this.startPosition);
  }

  get formattedIncidents(): string {
    return `${this.incidents}x incidents`;
  }

  get formattedPositionsGained(): string | undefined {
    if (this.position < this.startPosition) {
      return `+${this.startPosition - this.position} positions`;
    }
    return undefined;
  }
}