import * as helpers from '../../helpers';

export default function reducer(google = {}, action){
    switch (action.type){

        case 'GOOGLE_SET':
            return Object.assign({}, google, action.data);

        case 'GOOGLE_LIBRARY_ARTISTS_LOADED':
            if (google.library_artists){
                var uris = [...google.library_artists,...action.uris];
            } else {
                var uris = action.uris;
            }
            return Object.assign({}, google, { library_artists: helpers.removeDuplicates(uris) });

        case 'GOOGLE_CLEAR_LIBRARY_ARTISTS':
            return Object.assign({}, google, { library_artists: null });

        case 'GOOGLE_LIBRARY_ALBUMS_LOADED':
            if (google.library_albums){
                var uris = [...google.library_albums,...action.uris];
            } else {
                var uris = action.uris;
            }
            return Object.assign({}, google, { library_albums: helpers.removeDuplicates(uris) });

        case 'GOOGLE_CLEAR_LIBRARY_ALBUMS':
            return Object.assign({}, google, { library_albums: null });

        default:
            return google
    }
}