Iris/src/js/services/mopidy/reducer.js

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

        case 'MOPIDY_CONNECTED':
            return Object.assign({}, mopidy, { connected: true, connecting: false });

        case 'MOPIDY_DISCONNECTED':
            return Object.assign({}, mopidy, { connected: false, connecting: false });

        case 'MOPIDY_SET_CONFIG':
            return Object.assign({}, mopidy, {
                host: action.host, 
                port: action.port
            });

        case 'MOPIDY_CHANGE_TRACK':
            return Object.assign({}, mopidy, {
                tlid: action.tlid
            });

        case 'MOPIDY_HIGHLIGHT_CURRENT_TLTRACK':
            if( !action.data ) return mopidy;
            for( var i = 0; i < mopidy.tracks.length; i++ ){
                if( mopidy.tracks[i].tlid == action.data.tlid ){
                    action.data.track.playing = true;
                    Object.assign(mopidy.tracks[i], action.data);
                }else{
                    mopidy.tracks[i].track.playing = false;
                }
            }
            return Object.assign({}, mopidy, { tracks: mopidy.tracks });

        /**
         * Websocket-initiated actions
         **/
        case 'MOPIDY_STATE':
            return Object.assign({}, mopidy, {
                state: action.data 
            });

        case 'MOPIDY_CONSUME':
            return Object.assign({}, mopidy, {
                consume: action.data 
            });

        case 'MOPIDY_RANDOM':
            return Object.assign({}, mopidy, {
                random: action.data 
            });

        case 'MOPIDY_REPEAT':
            return Object.assign({}, mopidy, {
                repeat: action.data 
            });

        case 'MOPIDY_TLTRACKS':
            return Object.assign({}, mopidy, {
                tracks: action.data 
            });

        case 'MOPIDY_CURRENTTLTRACK':
            return Object.assign({}, mopidy, {
                trackInFocus: action.data   
            });

        case 'MOPIDY_VOLUME':
            return Object.assign({}, mopidy, {
                volume: action.data   
            });

        default:
            return mopidy
    }
}