import { Inject, Injectable } from "@nestjs/common";
import * as repository from "@apihub24/repository";
import { IOrganization } from "src/contracts/models/organization";

@Injectable()
export class OrganizationService {
  constructor(
    @Inject("@apihub24/organization_repository")
    private readonly organizationRepository: repository.IRepository<IOrganization>
  ) {}

  /**
   * This asynchronous method retrieves organizations that match a given filter.
   * @param filter A function that takes an `IOrganization` object and returns a boolean. It serves as the condition for selecting organizations.
   * @returns A Promise that resolves to an array of `IOrganization` objects that satisfy the filter condition.
   */
  async getBy(
    filter: (organization: IOrganization) => boolean
  ): Promise<IOrganization[]> {
    return await this.organizationRepository.getBy(filter);
  }

  /**
   * This asynchronous method saves a single `IOrganization` object.
   * @param organization The `IOrganization` object to be saved.
   * @returns A Promise that resolves to the saved `IOrganization` object.
   * @throws An error if the organization could not be saved.
   */
  async save(organization: IOrganization): Promise<IOrganization> {
    const savedOrganizations = await this.organizationRepository.save([
      organization,
    ]);
    if (!savedOrganizations?.length) {
      throw new Error(`organization (${organization.name}) not saved`);
    }
    return savedOrganizations[0];
  }

  /**
   * This asynchronous method deletes organizations based on a provided filter.
   * @param filter A function that takes an `IOrganization` object and returns a boolean. It specifies which organizations to delete.
   * @returns A Promise that resolves to `true` if the deletion is successful, and `false` otherwise.
   */
  async deleteBy(
    filter: (organization: IOrganization) => boolean
  ): Promise<boolean> {
    return await this.organizationRepository.deleteBy(filter);
  }
}