benfluleck/HelloBooks

import {
  FETCH_ALL_RECENT_BOOKS,
  FETCH_BORROWED_BOOKS,
  FETCH_ALL_BOOKS,
  FETCH_BOOKS_REJECTED,
  RETURN_BOOKS_SUCCESS,
  LOAN_HISTORY_FAILURE,
  LOAN_HISTORY_SUCCESS,
  FETCH_ALL_OVERDUE_BOOKS,
  SEARCH_BOOKS_SUCCESS,
  FETCH_BOOKS_FOR_CATEGORIES_SUCCESS,
  FETCH_BOOKS_FOR_CATEGORIES_FAILURE,
  FETCH_SELECTED_BOOK_SUCCESS,
  FETCH_SELECTED_BOOK_FAILURE,
  CREATE_BOOK_SUCCESS,
  UPDATE_BOOK_SUCCESS,
  DELETE_BOOK_SUCCESS
} from '../actions/actionType';

/**
 * *
 *
 * @description this Reducer implements the action for the book reducer
 *
 * @param {object} [state={}]
 *
 * @param {object} action
 *
 * @returns {object} state
 */
export default function bookReducer(state = {
  overdueBooksList: {
    books: [],
    pagination: {}
  }
}, action) {
  switch (action.type) {
  case SEARCH_BOOKS_SUCCESS:
    return {
      ...state,
      allBooksList: action.books
    };
  case UPDATE_BOOK_SUCCESS:
    return {
      ...state,
      allBooksList: {
        ...state.allBooksList,
        books: [
          action.book.updatedBook, ...state
            .allBooksList
            .books
            .filter(book => book.id !== action.book.updatedBook.id)
        ]
      }
    };
  case FETCH_ALL_OVERDUE_BOOKS:
    return {
      ...state,
      overdueBooksList: action.books
    };

  case FETCH_BORROWED_BOOKS:
    return {
      ...state,
      borrowedBooksList: action.books
    };

  case FETCH_ALL_RECENT_BOOKS:
    return {
      ...state,
      recentBooksList: action.books.books
    };

  case FETCH_ALL_BOOKS:
    return {
      ...state,
      allBooksList: action.books
    };

  case FETCH_BOOKS_REJECTED:
    return {
      ...state,
      error: action.error
    };
  case FETCH_SELECTED_BOOK_SUCCESS:

    return {
      ...state,
      book: action.book
    };

  case FETCH_SELECTED_BOOK_FAILURE:

    return {
      ...state,
      error: action.error
    };

  case FETCH_BOOKS_FOR_CATEGORIES_SUCCESS:

    return {
      ...state,
      allBooksList: action.books
    };

  case FETCH_BOOKS_FOR_CATEGORIES_FAILURE:

    return {
      ...state,
      error: action.error
    };

  case CREATE_BOOK_SUCCESS:
    return {
      ...state,
      allBooksList: {
        ...state.allBooksList,
        books: [
          action.book.createdBook, ...state.allBooksList.books
        ]
      }
    };

  case RETURN_BOOKS_SUCCESS:
    return {
      ...state,
      borrowedBooksList: {
        ...state.borrowedBooksList,
        books: state
          .borrowedBooksList
          .books
          .filter(book => book.bookId !== action.returnedBook.id)
      },
      overdueBooksList: {
        ...state.overdueBooksList,
        books: state
          .overdueBooksList
          .books
          .filter(book => book.bookId !== action.returnedBook.id)
      }
    };

  case LOAN_HISTORY_FAILURE:

    return {
      ...state,
      error: action.error

    };

  case LOAN_HISTORY_SUCCESS:

    return {
      ...state,
      bookOperations: action.bookOperations
    };

  case DELETE_BOOK_SUCCESS:

    return {
      ...state,
      allBooksList: {
        ...state.allBooksList,
        books: state
          .allBooksList
          .books
          .filter(book => book.id !== action.book.deletedBookId)
      }
    };

  default:
    return state;
  }
}