package com.smartor.statemachine;

import com.smartor.domain.PatMedInhosp;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * 住院状态机服务（门面模式）
 * 提供便捷的状态转换方法
 * 
 * @author smartor
 */
@Slf4j
@Service
public class InhospStateMachineService {

    @Autowired
    private InhospStateMachine stateMachine;

    /**
     * 处理预入院
     * 
     * @param patMedInhosp 住院记录对象
     * @return 是否成功
     */
    public boolean processPreAdmission(PatMedInhosp patMedInhosp) {
        log.info("【InhospStateMachineService】处理预入院：serialnum={}, orgid={}", 
                patMedInhosp.getSerialnum(), patMedInhosp.getOrgid());
        return stateMachine.transitionState(patMedInhosp, "3");
    }

    /**
     * 处理入院
     * 
     * @param patMedInhosp 住院记录对象
     * @return 是否成功
     */
    public boolean processInHospital(PatMedInhosp patMedInhosp) {
        log.info("【InhospStateMachineService】处理入院：serialnum={}, orgid={}", 
                patMedInhosp.getSerialnum(), patMedInhosp.getOrgid());
        return stateMachine.transitionState(patMedInhosp, "0");
    }

    /**
     * 处理出院
     * 
     * @param patMedInhosp 住院记录对象
     * @return 是否成功
     */
    public boolean processDischarge(PatMedInhosp patMedInhosp) {
        log.info("【InhospStateMachineService】处理出院：serialnum={}, orgid={}", 
                patMedInhosp.getSerialnum(), patMedInhosp.getOrgid());
        return stateMachine.transitionState(patMedInhosp, "1");
    }

    /**
     * 根据cry参数处理状态转换
     * 
     * @param patMedInhosp 住院记录对象
     * @param cry 状态码（0:入院, 1:出院, 3:预入院）
     * @return 是否成功
     */
    public boolean processStateChange(PatMedInhosp patMedInhosp, String cry) {
        log.info("【InhospStateMachineService】根据cry处理状态变更：serialnum={}, orgid={}, cry={}", 
                patMedInhosp.getSerialnum(), patMedInhosp.getOrgid(), cry);

        if ("0".equals(cry)) {
            return processInHospital(patMedInhosp);
        } else if ("1".equals(cry)) {
            return processDischarge(patMedInhosp);
        } else if ("3".equals(cry)) {
            return processPreAdmission(patMedInhosp);
        } else {
            log.error("【InhospStateMachineService】未知的cry值：{}", cry);
            return false;
        }
    }

    /**
     * 获取当前状态
     * 
     * @param serialnum 流水号
     * @param orgid 机构ID
     * @param patno 患者编号
     * @return 当前状态码
     */
    public String getCurrentState(String serialnum, String orgid, String patno) {
        return stateMachine.getCurrentState(serialnum, orgid, patno);
    }
}