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

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

  listProducts() {
    return this.prisma.product.findMany({
      where: { isActive: true },
      include: {
        variants: true,
        images: true,
        category: true,
        brand: true,
        collections: { include: { collection: true } },
      },
    });
  }

  async getVariantOrThrow(variantId: string) {
    const variant = await this.prisma.productVariant.findUnique({ where: { id: variantId } });
    if (!variant || !variant.isActive) {
      throw new NotFoundException(`Product variant ${variantId} not found or inactive`);
    }
    return variant;
  }
}