/** @module setting/state */

/**
 * state.js
 *
 * Collection of everything which has to do with state changes.
 **/

/** actionTypes define what actions are handeled by the reducer. */
export const actions = {
  changePaginationPage: page => {
    return {
      type: 'TABLE_CHANGE_PAGINATION_PAGE',
      page
    }
  },
  changePaginationItems: items => {
    return {
      type: 'TABLE_CHANGE_PAGINATION_ITEMS',
      items
    }
  }
}
console.log('State actions', actions)

/** state definition */
export const state = {
  filters: {},
  sorting: {},
  pagination: {
    activePage: 0,
    items: 50
  }
}
console.log('State state', state)

/** reducer is called by the redux dispatcher and handles all component actions */
export function reducer (state = [], action) {
  let pagination
  switch (action.type) {
    case 'TABLE_CHANGE_PAGINATION_PAGE':
      pagination = { ...state.pagination }
      pagination.activePage = action.page
      return { ...state, pagination }
    case 'TABLE_CHANGE_PAGINATION_ITEMS':
      pagination = { ...state.pagination }
      pagination.items = action.items
      return { ...state, pagination }
    default:
      return state
  }
}

/** sagas are asynchronous workers (JS generators) to handle the state. */
export function * saga () {}