package com.chinaztt.mes.production.state.productmain;

import com.chinaztt.mes.production.entity.ProductMain;
import com.chinaztt.mes.production.state.productmain.constant.ProductMainEvents;
import com.chinaztt.mes.production.state.productmain.constant.ProductMainStates;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.statemachine.StateMachineContext;
import org.springframework.statemachine.StateMachinePersist;
import org.springframework.statemachine.config.EnableStateMachineFactory;
import org.springframework.statemachine.config.EnumStateMachineConfigurerAdapter;
import org.springframework.statemachine.config.builders.StateMachineConfigurationConfigurer;
import org.springframework.statemachine.config.builders.StateMachineStateConfigurer;
import org.springframework.statemachine.config.builders.StateMachineTransitionConfigurer;
import org.springframework.statemachine.persist.DefaultStateMachinePersister;
import org.springframework.statemachine.persist.StateMachinePersister;
import org.springframework.statemachine.support.DefaultStateMachineContext;

import java.util.EnumSet;

/**
 * @Author: zhangxy
 * @Date: 2020-08-24 17:21
 */
@Configuration
@EnableStateMachineFactory(name = "productMainStateMachineFactory")
public class ProductMainStateMachineConfig extends EnumStateMachineConfigurerAdapter<ProductMainStates, ProductMainEvents> {

	public final static String MACHINE_ID = "productMainStateMachine";

	@Override
	public void configure(StateMachineStateConfigurer<ProductMainStates, ProductMainEvents> states) throws Exception {
		states.withStates()
				.initial(ProductMainStates.DRAFT)
				.states(EnumSet.allOf(ProductMainStates.class));
	}

	@Override
	public void configure(StateMachineTransitionConfigurer<ProductMainStates, ProductMainEvents> transitions) throws Exception {
		transitions
				.withExternal()
				.source(ProductMainStates.PROCESSING).target(ProductMainStates.SUBMITTED)
				.event(ProductMainEvents.SUBMIT)
				.and()
				.withExternal()
				.source(ProductMainStates.SUBMITTED).target(ProductMainStates.DRAFT)
				.event(ProductMainEvents.REVOKE)
				.and()
				.withExternal()
				.source(ProductMainStates.CHANGESHIFT).target(ProductMainStates.DRAFT)
				.event(ProductMainEvents.CHANGESHIFTTODRAFT)
				.and()
				.withExternal()
				.source(ProductMainStates.DRAFT).target(ProductMainStates.CHANGESHIFT)
				.event(ProductMainEvents.DRAFTTOCHANGESHIFT)
				.and()
				.withExternal()
				.source(ProductMainStates.DRAFT).target(ProductMainStates.SUBMITTED)
				.event(ProductMainEvents.SUBMIT);
	}

	@Override
	public void configure(StateMachineConfigurationConfigurer<ProductMainStates, ProductMainEvents> config)
			throws Exception {
		config.withConfiguration().machineId(MACHINE_ID);
	}

	/**
	 * 持久化配置
	 *
	 * @return
	 */
	@Bean(name = "productMainPersister")
	public StateMachinePersister<ProductMainStates, ProductMainEvents, ProductMain> persister() {
		return new DefaultStateMachinePersister<>(new StateMachinePersist<ProductMainStates, ProductMainEvents, ProductMain>() {
			@Override
			public void write(StateMachineContext<ProductMainStates, ProductMainEvents> stateMachineContext, ProductMain operationTask) throws Exception {

			}

			@Override
			public StateMachineContext<ProductMainStates, ProductMainEvents> read(ProductMain operationTask) throws Exception {
				StateMachineContext<ProductMainStates, ProductMainEvents> result = new DefaultStateMachineContext<ProductMainStates, ProductMainEvents>(ProductMainStates.getEnum(operationTask.getState()),
						null, null, null, null, MACHINE_ID);
				return result;
			}
		});
	}

}