import { IsNotEmpty, ValidateNested } from 'class-validator'
import { Type } from 'class-transformer'

export class EventData<T = any> {
  readonly old: T
  readonly new: T
  readonly row: T
}

export class Trigger {
  readonly name: string
}

export class Event<T = any> {
  @IsNotEmpty()
  readonly op: string
  readonly data: EventData<T>
}

export class BaseEventParams<T = any> {
  @IsNotEmpty()
  @ValidateNested()
  @Type(() => Event)
  readonly event: Event<T>
  readonly trigger: Trigger
}