var Immutable = require('immutable');
var deepFreeze = require('deep-freeze');

import * as types from '../actions/actionTypes';

const initialState = {
    customBackgroundColour: '#f7f7f7'
};

export default function backgroundColour(state = initialState, action = {}) {

switch (action.type) {
    case types.SET_BACKGROUND_COLOUR:

        deepFreeze(state);
        deepFreeze(action);

        console.log(Object.isFrozen(state)); // true
        console.log(state.customBackgroundColour); // #f7f7f7

        state.customBackgroundColour = 'red';
        console.log(state.customBackgroundColour); // red

        return {
            ...state,
            customBackgroundColour: action.payload.colour
        };
    default:
        return state;
    }
}