import * as get from 'lodash.get'

export default (instance,data) => (...params) => {
  switch (params.length) {
    case 0:
      return data.state
    case 1: {
      let [path]=params
      return get(data.state,path,instance.defaultState(path))
    }

    default: {
      let [path,defaultValue]=params
      get(data.state,path,defaultValue)
    }
  }
}