ChFlick/blogstoph

export default (state = [], action) => {
    switch (action.type) {
        case 'ADD_POST':
            return state.concat(action.post);
        case 'EDIT_POST':
            return state.map((post) => {
                if (post.id === action.id) {
                    return {
                        ...post,
                        ...action.updates
                    };
                }

                return post;
            });
        case 'REMOVE_POST':
            return state.filter(({ id }) => id !== action.id);
        case 'SET_POSTS':
            return action.posts;
        default:
            return state;
    }
};