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import { Client, ClientConfig } from "../deps.ts";import { BaseModel } from "./model.ts";import { sync } from "./sync.ts";import { Transaction } from "./transaction.ts";
/** @ignore */let _client: Client;
/** @ignore */let _models: BaseModel[] = [];
/** * Global dso instance */export const dso = {  /**   * set true will show exucte/query sql   */  showQueryLog: false,
  /**   * Sync model to database table   * @param force set true, will drop table before create table   */  async sync(force: boolean = false): Promise<void> {    for (const model of _models) {      await sync(_client, model, force);    }  },
  /**   * Database client   */  get client(): Client {    return _client;  },
  /**   * all models   */  get models() {    return _models;  },
  /**   * add model   * @param model   */  define<T extends BaseModel>(ModelClass: { new (): T }): T {    const model = new ModelClass();    _models.push(model);    return model;  },
  transaction: Transaction.transaction,
  /**   * connect to database   * @param config client config   */  async connect(config: ClientConfig | Client) {    if (config instanceof Client) {      _client = config;    } else {      _client = new Client();      await _client.connect(config);    }    return _client;  },
  close(): void {    _client.close();  },};