import { Inject, Injectable } from '@nestjs/common';
import { Kysely } from 'kysely';
import { KYSELY_CLIENT_PROVIDER_TOKEN } from 'src/core/database/database.module';
import { DB } from 'src/core/database/types';
import { CarEntityService } from '../feat-business-objects/car-entity/car-entity.service';
import { CarEntity } from '../feat-business-objects/car-entity/car.entity';

@Injectable()
export class PlaygroundService {
  constructor(
    @Inject(KYSELY_CLIENT_PROVIDER_TOKEN) private readonly db: Kysely<DB>,
    private readonly carService: CarEntityService,
  ) {}

  async getCarsByOperationDay(day: Date) {
    const ordinanceTypes = ['KTW', 'TSW', 'BTW'];

    const cars = await Promise.all(
      ordinanceTypes.map((ot) =>
        this.carService.getCarsForOperationDay(day, ot),
      ),
    );

    return cars
      .flat(2)
      .filter(({ carName }) => !!carName)
      .map((car) => this.carMapper(car))
      .filter(
        ({ tours }) =>
          tours.filter(
            ({ optimizationInMinutes }) => optimizationInMinutes !== 0,
          ).length > 0,
      );
  }

  private carMapper(car: CarEntity) {
    return {
      name: car.carName,
      drivers: car['plannedTimes'].map((pt) => ({
        name: `${pt.firstname} ${pt.surname}`,
      })),
      tours: car['tours'].map((tour) => ({
        id: tour.id,
        operationId: tour.operationId,
        ordinanceType: tour.ordinanceType,
        startDate: tour.startDate,
        optimizationInMinutes: tour.optimizationInMinutes,

        departedForPickup: tour.startBegin,
        arrivedAtPickup: tour.startEnd,
        departedPickup: tour.target,
        arrivedAtTarget: tour.targetBegin,
        completed: tour.empty,
      })),
    };
  }
}