import 'reflect-metadata'
import * as mongoose from 'mongoose';
import { Application, IBoot } from 'egg';

export default class FooBoot implements IBoot {
  private readonly app: Application;

  constructor(app: Application) {
    this.app = app;
  }

  async configWillLoad() {
    // Ready to call configDidLoad,`
    // Config, plugin files are referred,`
    // this is the last chance to modify the config.
    await this.connectDB(this.app)
  }

  configDidLoad() {
    // Config, plugin files have loaded.
  }

  async didLoad() {
    // All files have loaded, start plugin here.
  }

  async willReady() {
    // All plugins have started, can do some thing before app ready.
    // await this.customLoadModel();
    // const ctx = await this.app.createAnonymousContext();
    // await ctx.service.game.readDbMaintenance();
  }

  async didReady() {
    // Worker is ready, can do some things
    // don't need to block the app boot.
  }

  async serverDidReady() {
    // Server is listening.
  }

  async beforeClose() {
    // Do some thing before app close.
  }

  //#region 手动挂载model，测试需要ctx.model 

  public async connectDB(app: Application) {
    const { url, options } = app.config.mongoose
    if (url) {
      const connection = await mongoose.connect(url, options)
      app.context.connection = connection
    }
  }

  //#endregion
}
  
  module.exports = FooBoot;