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export const GET_TODOS = "GET_TODOS";
export const GET_TODOS_SUCCESS = "GET_TODOS_SUCCESS";
export const GET_TODOS_ERROR = "GET_TODOS_ERROR";

export function getTodos() {
  return {
    type: GET_TODOS
  }
}

const initialState = {
  data: [],
  pending: false,
  error: null
}

export function todos( state = initialState, { type, payload } ) {
  switch( type ) {
    case GET_TODOS:
      return Object.assign({}, state, {pending: true, error: null})
    case GET_TODOS_SUCCESS:
      return Object.assign({}, state, {data: payload, pending: false})
    case GET_TODOS_ERROR:
      return Object.assign({}, state, {pending: false, error: "Error"})
    default:
      return state;
  }
}