package de.srsoftware.web4rail.actions;

import java.util.List;
import java.util.Map;

import org.json.JSONObject;

import de.srsoftware.web4rail.BaseClass;
import de.srsoftware.web4rail.LoadCallback;
import de.srsoftware.web4rail.Params;
import de.srsoftware.web4rail.tags.Fieldset;
import de.srsoftware.web4rail.tags.Window;
import de.srsoftware.web4rail.tiles.Decoupler;
import de.srsoftware.web4rail.tiles.Tile;

public class EngageDecoupler extends Action {

	private static final String DECOUPLER = Decoupler.class.getSimpleName();

	public EngageDecoupler(BaseClass parent) {
		super(parent);
	}

	private Decoupler decoupler = null;

	@Override
	public boolean fire(Context context) {
		if (isNull(decoupler)) return false;
		decoupler.engage();
		return true;
	}

	@Override
	public JSONObject json() {
		JSONObject json = super.json();
		if (isSet(decoupler)) {
			json.put(Decoupler.class.getSimpleName(), decoupler.id());
		}
		return json;
	}

	@Override
	public Action load(JSONObject json) {
		if (json.has(DECOUPLER)) new LoadCallback() {
			@Override
			public void afterLoad() {
				decoupler = BaseClass.get(Id.from(json, DECOUPLER));
			}
		};
		return super.load(json);
	}

	@Override
	protected Window properties(List<Fieldset> preForm, FormInput formInputs, List<Fieldset> postForm, String... errors) {
		formInputs.add(t("Decoupler") + ": " + (isNull(decoupler) ? t("unset") : decoupler), button(t("Select from plan"), Map.of(ACTION, ACTION_UPDATE, ASSIGN, DECOUPLER)));

		return super.properties(preForm, formInputs, postForm, errors);
	}

	@Override
	protected void removeChild(BaseClass child) {
		if (child == decoupler) decoupler = null;
		super.removeChild(child);
	}

	public String toString() {
		if (isNull(decoupler)) return "[" + t("Click here to setup decoupler") + "]";
		return t("Engage {}", decoupler);
	};

	@Override
	protected Object update(Params params) {
		LOG.debug("update: {}", params);
		if (params.containsKey(DECOUPLER)) {
			Tile tile = BaseClass.get(new Id(params.getString(DECOUPLER)));
			if (tile instanceof Decoupler) {
				decoupler = (Decoupler) tile;
			} else return t("Clicked tile is not a {}!", t("decoupler"));
		}
		return context().properties();
	}
}