import { BaseDataLoaderService } from "@cv/system";
import { Injectable, Scope } from "@nestjs/common";
import { CVService } from "./cv.service";
import { CV } from "./graphql/cv.type";

@Injectable({ scope: Scope.REQUEST })
export class CVDataLoaderService extends BaseDataLoaderService<string, CV> {
  constructor(readonly cvService: CVService) {
    super(async (ids: readonly string[]) => {
      const cvs = await cvService.findMany({ id: [...ids] });

      const cvMap = new Map<string, CV>();
      for (const cv of cvs) {
        cvMap.set(cv.id, cv);
      }

      return ids.map((id) => cvMap.get(id) ?? null);
    });
  }
}