import { BookService } from "../../../define/db/service/Book/bookService";
import { Book } from "../../../model/book";

export class BookBasic {
  bookService: BookService
  constructor() { }

  async InitService() {
    if (!this.bookService) {
      this.bookService = await BookService.getInstance()
    }
  }

  //#region 事务操作
  async transaction(callback: (realm: any) => void) {
    await this.InitService();
    this.bookService.transaction(() => {
      callback(this.bookService.realm)
    })
  }
  //#endregion

  /**
   * 通过小说ID获取小说数据
   * @param bookId 小说ID
   * @returns
   */
  async GetBookDataById(bookId: string): Promise<Book.SelectBook> {
    await this.InitService();
    let book = this.bookService.GetBookDataById(bookId);
    if (book == null) {
      let msg = '未找到对应的小说数据，请检查'
      throw new Error(msg);
    }
    return book
  }

  /**
  * 更新小说指定ID的数据
  * @param bookId 小说ID
  * @param data 小说要更新的数据
  */
  async UpdateBookData(bookId: string, data: Book.SelectBook): Promise<Book.SelectBook> {
    await this.InitService();
    let res = this.bookService.UpdateBookData(bookId, data)
    return res
  }

  /**
   * 删除指定的小说数据
   * @param bookId 需要删除的小说ID
   */
  async DeleteBookData(bookId: string): Promise<void> {
    await this.InitService();
    this.bookService.DeleteBookData(bookId)
  }
}