export type SeasonStatus = 'planned' | 'active' | 'completed';

export class Season {
  readonly id: string;
  readonly leagueId: string;
  readonly gameId: string;
  readonly name: string;
  readonly year?: number;
  readonly order?: number;
  readonly status: SeasonStatus;
  readonly startDate?: Date;
  readonly endDate?: Date;

  private constructor(props: {
    id: string;
    leagueId: string;
    gameId: string;
    name: string;
    year?: number;
    order?: number;
    status: SeasonStatus;
    startDate?: Date;
    endDate?: Date;
  }) {
    this.id = props.id;
    this.leagueId = props.leagueId;
    this.gameId = props.gameId;
    this.name = props.name;
    this.year = props.year;
    this.order = props.order;
    this.status = props.status;
    this.startDate = props.startDate;
    this.endDate = props.endDate;
  }

  static create(props: {
    id: string;
    leagueId: string;
    gameId: string;
    name: string;
    year?: number;
    order?: number;
    status?: SeasonStatus;
    startDate?: Date;
    endDate?: Date;
  }): Season {
    if (!props.id || props.id.trim().length === 0) {
      throw new Error('Season ID is required');
    }

    if (!props.leagueId || props.leagueId.trim().length === 0) {
      throw new Error('Season leagueId is required');
    }

    if (!props.gameId || props.gameId.trim().length === 0) {
      throw new Error('Season gameId is required');
    }

    if (!props.name || props.name.trim().length === 0) {
      throw new Error('Season name is required');
    }

    const status: SeasonStatus = props.status ?? 'planned';

    return new Season({
      id: props.id,
      leagueId: props.leagueId,
      gameId: props.gameId,
      name: props.name,
      year: props.year,
      order: props.order,
      status,
      startDate: props.startDate,
      endDate: props.endDate,
    });
  }
}