namespace lib_dom
{
	
	/**
	 * @author fenris
	 */
	export function clone(
		element : Element,
		options : {
			context ?: Document;
		} = {}
	) : Node
	{
		options = Object.assign(
			{
				"context": document,
			},
			options
		);
		return options.context.importNode(element, true);
	}
	
	
	/**
	 * @author fenris
	 */
	export function request(
		id : string,
		options : {
			context ?: Document;
			arguments ?: (null | Record<string, any>);
		} = {}
	) : DocumentFragment
	{
		options = Object.assign(
			{
				"context": document,
				"arguments": null,
			},
			options
		);
		const template : (null | Element) = document.querySelector("template#" + id);
		if (template === null) {
			throw (new Error("template not found: " + id));
		}
		else {
			const fragment : DocumentFragment = (
				clone(
					template["content"],
					{
						"context": options.context,
					}
				) as DocumentFragment
			);
			if (options.arguments === null) {
				// do nothing
			}
			else {
				for (let index : int = 0; index < fragment.children.length; index += 1) {
					const element : Element = fragment.children[index];
					element.innerHTML = lib_string.coin(element.innerHTML, options.arguments);
				}
			}
			return fragment;
		}
	}
	
}