import { Injectable } from '@nestjs/common';
import { InjectModel } from '@nestjs/mongoose';
import { Model } from 'mongoose';
import { Inbound, InboundDocument } from './models/inbound.model';

@Injectable()
export class InboundService {
  constructor(
    @InjectModel('inbound')
    private readonly inboundModel: Model<InboundDocument>,
  ) {}

  async callsignKnown(callsign: string): Promise<boolean> {
    return this.inboundModel
      .findOne({ callsign })
      .then((inbound) => inbound !== null);
  }

  async add(inbound: Inbound): Promise<boolean> {
    return this.callsignKnown(inbound.callsign).then(async (known) => {
      if (known) return false;

      // modify the inbound data
      inbound.plan = undefined;
      inbound.controllerData.reportedTime = new Date().toUTCString();

      await this.inboundModel.create(inbound);

      return true;
    });
  }

  async remove(callsign: string): Promise<boolean> {
    return this.callsignKnown(callsign).then(async (known) => {
      if (!known) return false;
      await this.inboundModel.deleteOne({ callsign });
      return true;
    });
  }

  async update(inbound: Inbound): Promise<boolean> {
    return this.callsignKnown(inbound.callsign).then(async (known) => {
      if (!known) return false;

      // modify the inbound data
      inbound.plan = undefined;
      inbound.controllerData.reportedTime = new Date().toUTCString();

      await this.inboundModel.findOneAndUpdate(
        { callsign: inbound.callsign },
        inbound,
      );

      return true;
    });
  }

  async airportInbounds(icao: string): Promise<Inbound[]> {
    return this.inboundModel.find({ destination: icao });
  }
}