import { Injectable } from '@nestjs/common';
import { PrismaService } from '../prisma/prisma.service';
import { CategoryResource, Prisma } from '@prisma/client';

@Injectable()
export class CategoryResourceService {
  constructor(private prisma: PrismaService) {}

  async findAll(params: {
    skip?: number;
    take?: number;
    where?: Prisma.CategoryResourceWhereInput;
    orderBy?: Prisma.CategoryResourceOrderByWithRelationInput;
  }): Promise<{ data: CategoryResource[]; total: number }> {
    const { skip, take, where, orderBy } = params;
    const [data, total] = await this.prisma.$transaction([
      this.prisma.categoryResource.findMany({ 
        skip, 
        take, 
        where, 
        orderBy,
        include: {
          part: true,
          employee: true,
        },
      }),
      this.prisma.categoryResource.count({ where }),
    ]);
    return { data, total };
  }

  async findOne(where: Prisma.CategoryResourceWhereUniqueInput): Promise<CategoryResource | null> {
    return this.prisma.categoryResource.findUnique({ 
      where,
      include: {
        part: true,
        employee: true,
      },
    });
  }

  async create(data: Prisma.CategoryResourceCreateInput): Promise<CategoryResource> {
    return this.prisma.categoryResource.create({ 
      data,
      include: {
        part: true,
        employee: true,
      },
    });
  }

  async update(params: {
    where: Prisma.CategoryResourceWhereUniqueInput;
    data: Prisma.CategoryResourceUpdateInput;
  }): Promise<CategoryResource> {
    return this.prisma.categoryResource.update({
      ...params,
      include: {
        part: true,
        employee: true,
      },
    });
  }

  async remove(where: Prisma.CategoryResourceWhereUniqueInput): Promise<CategoryResource> {
    return this.prisma.categoryResource.delete({ 
      where,
      include: {
        part: true,
        employee: true,
      },
    });
  }
}