import { IsBoolean, IsInt, IsOptional } from 'class-validator';
import { getConnection } from 'typeorm';
import { RunnerNotFoundError } from '../../errors/RunnerErrors';
import { Runner } from '../entities/Runner';
import { RunnerCard } from '../entities/RunnerCard';

/**
 * This classed is used to create a new RunnerCard entity from a json body (post request).
 */
export class CreateRunnerCard {
    /**
     * The card's associated runner.
     */
    @IsInt()
    @IsOptional()
    runner?: number;

    /**
     * Is the new card enabled (for fraud reasons)?
     * Default: true
     */
    @IsBoolean()
    enabled: boolean = true;

    /**
     * Creates a new RunnerCard entity from this.
     */
    public async toEntity(): Promise<RunnerCard> {
        let newCard: RunnerCard = new RunnerCard();

        newCard.enabled = this.enabled;
        newCard.runner = await this.getRunner();

        return newCard;
    }

    public async getRunner(): Promise<Runner> {
        if (!this.runner) { return null; }
        const runner = await getConnection().getRepository(Runner).findOne({ id: this.runner });
        if (!runner) {
            throw new RunnerNotFoundError();
        }
        return runner;
    }
}