CachedImage class

class CachedImage extends Component {
    constructor(props) {
        super(props)
        this.state = {
            cachedImagePath: null
        }
    }

    componentWillMount() {
        if (this.props.source)
            this.checkImageCache(this.props.source);
    }

    checkImageCache(source) {
        let that = this;

        return nmFetchImage(source)
            .then(cachedResult => {
                if (cachedResult)
                    that.setState({
                        cachedImagePath: cachedResult
                    })
            }).done();
    }

    render() {

        if (this.state.cachedImagePath) {
            return this.renderCache();
        }

        if (this.props.defaultSource) {
            return this.renderDefaultSource();
        }

        return (
            <Spinner/>
        )
    }

    renderCache() {
        console.log(`this.props`, this.props);
        console.log(`source`, {uri: this.state.cachedImagePath});

        return (
            <Image style={this.props.style} source={{uri: this.state.cachedImagePath}}/>
        );
    }

    renderDefaultSource() {
        const {defaultSource, ...props} = this.props;
        return (
            <Image {...props} source={defaultSource}/>
        );
    }
}