import {
  Entity,
  aliases,
  aliasTo,
  props,
  table,
  validate,
} from '@chocolatesoup/joiful-dynamo';

import * as Joi from 'joi';

@table('test-table')
class TestModel extends Entity {
  @prop({ primaryKey: true });
  @validate(Joi.string().required())
  @aliases(['primary'])
  pk: string;

  @prop()
  @validate(Joi.string().trim().required())
  name: string;

  @prop()
  @aliasTo('name')
  fullName: string;

  @prop({ createdAt: true })
  _createdAt: string;

  @prop({ updatedAt: true })
  _updatedAt: string;
}

const instance = new TestModel({
  pk: '1',
  fullName: '   test name  ',
  extraAttribute: 'extra',
});

// this should be inside an async function
await instance.create();
/*
  Data saved to DB:
  {
    pk: 'TestModel-1',
    name: 'test name',
    extraAttribute: 'extra',
    _createdAt: '2022-02-07T22:43:30.344Z',
    _updatedAt: '2022-02-07T22:43:30.344Z',
    _entityName: 'TestModel',
  }
*/


const invalidInstance = new TestModel({
  name: 'Name',
});

console.log(invalidInstance.valid) // false
invalidInstance.create() // Throws error.


const dbInstance = await TestModel.getItem({ pk: '1' });
dbInstance.name = '123'
dbInstance.update();


const scanInstances = await TestModel.scan(); // scanAll also available
console.log(scanInstances.items) // Array of test instances
await scanInstances.next() // Load next page
console.log(scanInstances.items) // Array with ALL test instances
console.log(scanInstances.lastPageItems) // Array with last page instances

const queryOpts = {
  IndexName: 'byEntity',
  KeyConditionExpression: '_entityName = :e',
  ExpressionAttributeValues: {
    ':e': 'TestModel',
  },
};
const queryInstances = await TestModel.query(queryOpts); // queryAll also available
console.log(queryInstances.items) // Array of test instances
await queryInstances.next() // Load next page
console.log(queryInstances.items) // Array with ALL test instances
console.log(queryInstances.lastPageItems) // Array with last page instances