import type { BaseMapper } from "@cv/core";
import { Injectable } from "@nestjs/common";
import type { Prisma } from "@prisma/client";

type PrismaUserFile = Prisma.UserFileGetPayload<object>;

import { UserFile } from "./user-file.entity";

@Injectable()
export class UserFileMapper implements BaseMapper<PrismaUserFile, UserFile> {
  toDomain(prisma: null): null;
  toDomain(prisma: PrismaUserFile): UserFile;
  toDomain(prisma: PrismaUserFile | null): UserFile | null;
  toDomain(prisma: PrismaUserFile | null): UserFile | null {
    if (!prisma) return null;

    return new UserFile(
      prisma.id,
      prisma.profileId,
      prisma.fingerprint,
      prisma.fileName,
      prisma.mimeType,
      prisma.sizeBytes,
      prisma.source,
      prisma.status,
      prisma.statusMessage,
      prisma.resultJson,
      prisma.error,
      prisma.createdAt,
      prisma.updatedAt,
    );
  }

  mapToDomain(items: PrismaUserFile[]): UserFile[] {
    return items
      .map((item) => this.toDomain(item))
      .filter((item): item is UserFile => item !== null);
  }
}