mysticPrg/catch-light

import {
    LIGHT_CREATE,
    LIGHT_TARGET_CHANGE,
    LIGHT_REMOVE,
    LIGHT_INVOKE
} from '~/actions/ActionTypes';
import { clone } from '~/utils/common';
import LightModel from '~/models/LightModel';

const initialState = {
    lights: new Map()
};

export default function LightReducer(state = initialState, action) {

    const lights = state.lights;

    switch ( action.type ) {
        case LIGHT_CREATE: {
            let newLight = new LightModel({
                ...action.light,
                target_x: action.light['target-x'],
                target_y: action.light['target-y'],
            });
            const newLights = clone(lights);
            newLights.set(newLight.id, newLight);

            return {
                ...state,
                lights: newLights
            };
        }

        case LIGHT_TARGET_CHANGE: {
            if ( !lights.has(action.id) ) {
                return state;
            }
            const nextLights = clone(lights);
            const nextLight = nextLights.get(action.id);

            nextLight['target-x'] = action.x;
            nextLight['target-y'] = action.y;

            return {
                ...state,
                lights: nextLights
            };
        }

        case LIGHT_REMOVE: {
            if ( !lights.has(action.id) ) {
                return state;
            }
            const nextLights = clone(lights);
            nextLights.delete(action.id);

            return {
                ...state,
                lights: nextLights
            };
        }

        case LIGHT_INVOKE: {
            if ( !lights.has(action.id) ) {
                return state;
            }
            const nextLights = clone(lights);
            const nextLight = nextLights.get(action.id);

            nextLight.invoked = true;

            return {
                ...state,
                lights: nextLights
            };
        }

        default:
            return state;
    }
};