class Session {
    data = {}

    init(data) {
        this.data = data
    }

    get(key) {
        const parts = key.split('.')
        let value = this.data
        for ( const part of parts ) {
            value = value[part]
            if ( typeof value === 'undefined' ) return value
        }
        return value
    }

    set(key, value) {
        const parts = key.split('.')
        let parent = this.data

        for ( const part of parts.slice(0, -1) ) {
            if ( !parent[part] ) parent[part] = {}
            parent = parent[part]
        }

        parent[parts.reverse()[0]] = value
    }
}

const session = new Session()
export { session }