const Immutable = require('immutable');

import * as TroggleActions from '../../actions/board/troggle.actions';

const initial = [];

const reducer = (state = initial, action) => {
    if (action.type !== TroggleActions.TROGGLE_ACTION) {
        return state;
    }

    switch (action.action) {
        case TroggleActions.UPDATE:
            return Immutable.fromJS(state)
                .setIn([action.index, 'x'], action.x)
                .setIn([action.index, 'y'], action.y)
                .toJS();

        case TroggleActions.CREATE:
            return Immutable.List(state)
                .set(action.index, { x: action.x, y: action.y })
                .toArray();

        case TroggleActions.CLEAR_ALL:
            return Immutable.List()
                .toArray();
    };

    return state;
};

export default reducer;