/**@flow*/
import {assert} from 'chai'
import {concat, event, events, init, project, select, append, remove, update, value} from '../src/index'

describe('Big example', () => {
  it('quick test', () => {
    const
      TYPE_NOTIFICATION = 'TYPE_NOTIFICATION',
      TYPE_DELETE = 'TYPE_DELETE',
      TYPE_UPDATE = 'TYPE_UPDATE',
      event2 = {
        type: TYPE_NOTIFICATION,
        data: {
          type: TYPE_UPDATE,
          notifications: [
            {id: 0, read: false},
            {id: 1, read: true},
            {id: 3, read: false}
          ]
        }
      },
      event1 = {
        type: TYPE_NOTIFICATION,
        data: {
          type: TYPE_DELETE,
          notifications: [1,2,3]
        }
      },
      reducer = events(
        event(
          TYPE_NOTIFICATION,
          project(
            e => e.data,
            event(
              TYPE_DELETE,
              ({counter, list}, {notifications}) => {
                list = list.filter(item => notifications.indexOf(item.id) == -1)
                return {
                  counter: list.filter(item => !item.read).length,
                  list: list
                }
              }
            ),
            event(
              TYPE_UPDATE,
              (state) => {
                console.log('dfadasfasdf')
                return state
              },
              select('counter', (state, {notifications}) => state + notifications.filter(item => !item.read).length),
              select('list', (state, {notifications}) => [...state, ...notifications])
            )
          )
        ),
        init({
          counter: 0,
          list: []
        })
      ),
      initialState = reducer(undefined, {type: '@@point/INIT'}),
      stateWithNotifications = reducer(initialState, event2),
      stateAfterRemove = reducer(stateWithNotifications, event1)
    console.log(initialState, stateWithNotifications, stateAfterRemove)
  })
})