import { Inject, Injectable, Logger } from '@nestjs/common';
import { EventEmitter2 } from '@nestjs/event-emitter';
import { AdRepositoryPort } from '../core/application/ports/ad.repository.port';
import { LoggerBase, MessagePublisherPort } from '@mobicoop/ddd-library';
import { PrismaService } from './prisma.service';
import { AD_MESSAGE_PUBLISHER } from '../ad.di-tokens';
import { AdEntity } from '../core/domain/ad.entity';
import { AdMapper } from '../ad.mapper';
import { ExtendedPrismaRepositoryBase } from '@mobicoop/ddd-library/dist/db/prisma-repository.base';
import { Frequency } from '../core/domain/ad.types';

export type AdBaseModel = {
  uuid: string;
  driver: boolean;
  passenger: boolean;
  frequency: Frequency;
  fromDate: Date;
  toDate: Date;
  seatsProposed: number;
  seatsRequested: number;
  strict: boolean;
  driverDuration?: number;
  driverDistance?: number;
  passengerDuration?: number;
  passengerDistance?: number;
  fwdAzimuth: number;
  backAzimuth: number;
  createdAt: Date;
  updatedAt: Date;
};

export type AdReadModel = AdBaseModel & {
  waypoints: string;
  schedule: ScheduleItemModel[];
};

export type AdWriteModel = AdBaseModel & {
  schedule: {
    create: ScheduleItemModel[];
  };
};

export type AdUnsupportedWriteModel = {
  waypoints: string;
  direction: string;
};

export type ScheduleItemModel = {
  uuid: string;
  day: number;
  time: Date;
  margin: number;
  createdAt: Date;
  updatedAt: Date;
};

export type RawAdBaseModel = {
  uuid: string;
  driver: boolean;
  passenger: boolean;
  frequency: Frequency;
  fromDate: Date;
  toDate: Date;
  seatsProposed: number;
  seatsRequested: number;
  strict: boolean;
  driverDuration?: number;
  driverDistance?: number;
  passengerDuration?: number;
  passengerDistance?: number;
  fwdAzimuth: number;
  backAzimuth: number;
  waypoints: string;
  createdAt: Date;
  updatedAt: Date;
};

export type RawScheduleItemModel = {
  day: number;
  time: Date;
  margin: number;
};

export type RawAdModel = RawAdBaseModel & RawScheduleItemModel;

export type RawAdReadModel = RawAdBaseModel & {
  schedule: RawScheduleItemModel[];
};

/**
 *  Repository is used for retrieving/saving domain entities
 * */
@Injectable()
export class AdRepository
  extends ExtendedPrismaRepositoryBase<
    AdEntity,
    AdReadModel,
    AdWriteModel,
    AdUnsupportedWriteModel
  >
  implements AdRepositoryPort
{
  constructor(
    prisma: PrismaService,
    mapper: AdMapper,
    eventEmitter: EventEmitter2,
    @Inject(AD_MESSAGE_PUBLISHER)
    protected readonly messagePublisher: MessagePublisherPort,
  ) {
    super(
      prisma.ad,
      prisma,
      mapper,
      eventEmitter,
      new LoggerBase({
        logger: new Logger(AdRepository.name),
        domain: 'matcher',
        messagePublisher,
      }),
    );
  }

  getCandidates = async (queryString: string): Promise<AdReadModel[]> =>
    this.toReadModels((await this.queryRawUnsafe(queryString)) as RawAdModel[]);

  private toReadModels = (rawAds: RawAdModel[]): AdReadModel[] => {
    const rawAdReadModels: RawAdReadModel[] = rawAds.map(
      (rawAd: RawAdModel) => ({
        uuid: rawAd.uuid,
        driver: rawAd.driver,
        passenger: rawAd.passenger,
        frequency: rawAd.frequency,
        fromDate: rawAd.fromDate,
        toDate: rawAd.toDate,
        schedule: [
          {
            day: rawAd.day,
            time: rawAd.time,
            margin: rawAd.margin,
          },
        ],
        seatsProposed: rawAd.seatsProposed,
        seatsRequested: rawAd.seatsRequested,
        strict: rawAd.strict,
        driverDuration: rawAd.driverDuration,
        driverDistance: rawAd.driverDistance,
        passengerDuration: rawAd.passengerDuration,
        passengerDistance: rawAd.passengerDistance,
        fwdAzimuth: rawAd.fwdAzimuth,
        backAzimuth: rawAd.backAzimuth,
        waypoints: rawAd.waypoints,
        createdAt: rawAd.createdAt,
        updatedAt: rawAd.updatedAt,
      }),
    );
    const adReadModels: AdReadModel[] = [];
    rawAdReadModels.forEach((adReadModel: AdReadModel) => {
      const ad: AdReadModel | undefined = adReadModels.find(
        (arm: AdReadModel) => arm.uuid == adReadModel.uuid,
      );
      if (ad) {
        ad.schedule.push(...adReadModel.schedule);
      } else {
        adReadModels.push(adReadModel);
      }
    });
    return adReadModels;
  };
}