import { OrchModel } from './model'
import type { OrchModelState } from './types'

export function waitUntil<M extends OrchModel<any>>(
  model: M,
  validateFn: (state: OrchModelState<M>, model: M) => boolean,
) {
  return new Promise((resolve) => {
    model.on.change(() => {
      if (validateFn(model.getState() as OrchModelState<M>, model)) {
        resolve(model)
      }
    })
  })
}