package com.x.query.assemble.designer.jaxrs.statement;

import com.x.base.core.container.EntityManagerContainer;
import com.x.base.core.container.factory.EntityManagerContainerFactory;
import com.x.base.core.entity.JpaObject;
import com.x.base.core.project.bean.WrapCopier;
import com.x.base.core.project.bean.WrapCopierFactory;
import com.x.base.core.project.exception.ExceptionAccessDenied;
import com.x.base.core.project.exception.ExceptionEntityNotExist;
import com.x.base.core.project.http.ActionResult;
import com.x.base.core.project.http.EffectivePerson;
import com.x.base.core.project.logger.Logger;
import com.x.base.core.project.logger.LoggerFactory;
import com.x.query.assemble.designer.Business;
import com.x.query.core.entity.Query;
import com.x.query.core.entity.schema.Statement;

class ActionGet extends BaseAction {

	private static final Logger LOGGER = LoggerFactory.getLogger(ActionGet.class);

	ActionResult<Wo> execute(EffectivePerson effectivePerson, String flag) throws Exception {

		LOGGER.debug("execute:{}, flag:{}.", effectivePerson::getDistinguishedName, () -> flag);
		ClassLoader classLoader = Business.getDynamicEntityClassLoader();
		Thread.currentThread().setContextClassLoader(classLoader);

		try (EntityManagerContainer emc = EntityManagerContainerFactory.instance().create()) {
			ActionResult<Wo> result = new ActionResult<>();
			Business business = new Business(emc);
			Statement statement = emc.flag(flag, Statement.class);
			if (null == statement) {
				throw new ExceptionEntityNotExist(flag, Statement.class);
			}
			com.x.query.core.entity.Query query = emc.flag(statement.getQuery(), com.x.query.core.entity.Query.class);
			if (null == query) {
				throw new ExceptionEntityNotExist(flag, Query.class);
			}
			if (!business.editable(effectivePerson, query)) {
				throw new ExceptionAccessDenied(effectivePerson, query);
			}
			Wo wo = Wo.copier.copy(statement);
			result.setData(wo);
			return result;
		}
	}

	public static class Wo extends Statement {

		private static final long serialVersionUID = -5755898083219447939L;

		static WrapCopier<Statement, Wo> copier = WrapCopierFactory.wo(Statement.class, Wo.class, null,
				JpaObject.FieldsInvisible);
	}
}