// dexie文档：https://dexie.org/docs/API-Reference  https://www.npmrc.cn/en/Dexie-js.html
class dexieDemo {
  dbName = "jafar";
  dbVersion = 1;
  constructor(dbName, dbVersion) {
    if (dbName) {
      this.dbName = dbName;
    }
    if (dbVersion) {
      this.dbVersion = dbVersion;
    }
    this.db = new Dexie(this.dbName);
    this.db.version(this.dbVersion).stores(
      { tabName: "++id,nKey,nValue,nTime" }, // 创建表，已有表则建立链接，id为自增主键；仅需要列举需要索引的字段即可
    );
  }
  async get() {
    const getLastData = await this.db.tabName.orderBy("id").last();
    return getLastData;
  }
  async post(nKey, nValue) {
    await this.db.tabName.add({
      nKey: nKey,
      nValue: nValue,
      nTime: Date.now(),
    });
    const getLastData = await this.db.tabName.orderBy("id").last();
  }
  async put(id) {
    await this.db.tabName.put({
      id: 1,
      userName: "zhangsan",
    });
  }
  async del(id) {
    await this.db.tabName.delete(id);
  }
}

export const myDexie = new dexieDemo();

// document.querySelector("#goto_indexedDB_post").addEventListener("click",async () => {
//     let nKey = Math.random()
//     let nValue = new Date().getTime();
//     await myDexieDemo.post( nKey,nValue );
// })
// document.querySelector("#goto_indexedDB_get").addEventListener("click",async () => {
//     console.log( await myDexieDemo.get() )
// })