package com.framsticks.params;



import static com.framsticks.util.lang.Containers.filterInstanceof;

import com.framsticks.params.types.ProcedureParam;

/**
 * @author Piotr Sniegowski
 */
public abstract class ListAccess implements AccessInterface {

	final AccessInterface elementAccess;

	public ListAccess(AccessInterface elementAccess) {
		this.elementAccess = elementAccess;
	}

	// @Override
	// public Param getGroupMember(int gi, int n) {
	//	return null;
	// }

	@Override
	public void setDefault(boolean numericOnly) {
	}

	@Override
	public void setDefault(int i, boolean numericOnly) {
	}

	@Override
	public void setMin() {
	}

	@Override
	public void setMin(int i) {
	}

	@Override
	public void setMax() {
	}

	@Override
	public void setMax(int i) {
	}

	@Override
	public void copyFrom(AccessInterface src) {
	}

	@Override
	public void save(SinkInterface sink) {
		for (CompositeParam p : filterInstanceof(getParams(), CompositeParam.class)) {
			Object child = get(p, Object.class);
			//this is probably an assertion
			assert child != null;
			elementAccess.select(child);
			elementAccess.save(sink);
		}
	}

	@Override
	public void load(SourceInterface stream) throws Exception {
	}

	public AccessInterface getElementAccess() {
		return elementAccess;
	}

	public abstract String computeIdentifierFor(Object selected);

	@Override
	public final FramsClass getFramsClass() {
		return elementAccess.getFramsClass();
	}

	//TODO it could actually be used also
	@Override
	public boolean tryAutoAppend(Object object) {
		return false;
	}

	@Override
	public Object call(String id, Object[] arguments) {
		throw new InvalidOperationException().msg("list access does not support calling methods").arg("id", id);
	}

	@Override
	public Object call(ProcedureParam param, Object[] arguments) {
		throw new InvalidOperationException().msg("list access does not support calling methods").arg("param", param);
	}

};