export default function deepCopy<T>(inObject: T): T {
    let outObject: any, value: any
    if (typeof inObject !== "object" || inObject === null) {
        return inObject
    }

    outObject = Array.isArray(inObject) ? [] : {}

    function copy(descriptor: PropertyDescriptor, key: string) {
        value = descriptor.value;
        if (typeof value === "function") {
            Object.defineProperty(outObject, key, descriptor)
        } else {
            const _value = deepCopy(value);
            const _descriptor = Object.assign({}, descriptor);
            _descriptor.value = _value;
            Object.defineProperty(outObject, key, descriptor)
        }
    }

    for (let key in Object.getOwnPropertyDescriptors(inObject)) {
        const descriptor = <PropertyDescriptor>Object.getOwnPropertyDescriptor(inObject, key);
        copy(descriptor, key);
    }

    for (let key in Object.getOwnPropertyDescriptors(Object.getPrototypeOf(inObject))){
        const descriptor = <PropertyDescriptor>Object.getOwnPropertyDescriptor(Object.getPrototypeOf(inObject), key);
        copy(descriptor, key);
    }

    return <T>outObject
}