import { reducerWithInitialState } from 'typescript-fsa-reducers'
import { combineReducers } from 'redux'

import * as actions from './actions'

const searchFocused = reducerWithInitialState(false)
  .case(actions.searchFocused, (state, focused: boolean) => focused)

const searchQuery = reducerWithInitialState('')
  .case(actions.updateSearchQuery, (state, query: string) => query)

const lastSeenAt = reducerWithInitialState({
  current: Date.now(),
  previous: Date.now(),
})
  .case(actions.updateLastSeenAt, ({ current }, payload) => {
    return {
      current: payload || Date.now(),
      previous: current,
    }
  })

export default combineReducers({
  lastSeenAt,
  search: combineReducers({
    focused: searchFocused,
    query: searchQuery,
  }),
})