import { Injectable, NotFoundException } from '@nestjs/common';
import { KnowledgeItemsRepository } from './knowledge-items.repository';

@Injectable()
export class KnowledgeItemsService {
  constructor(private readonly repository: KnowledgeItemsRepository) {}

  async create(userId: string, knowledgeBaseId: string, dto: any) {
    return this.repository.create(userId, knowledgeBaseId, dto);
  }

  async findById(id: string) {
    const item = await this.repository.findById(id);
    if (!item) throw new NotFoundException('知识点不存在');
    return item;
  }

  async findByKnowledgeBaseId(knowledgeBaseId: string) {
    return this.repository.findByKnowledgeBaseId(knowledgeBaseId);
  }

  async update(id: string, dto: any) {
    const item = await this.repository.update(id, dto);
    if (!item) throw new NotFoundException('知识点不存在');
    return item;
  }
}