package cn.iocoder.yudao.module.archive.service.borrow.listener;

import cn.iocoder.yudao.module.archive.service.borrow.ArchiveBorrowService;
import cn.iocoder.yudao.module.bpm.api.event.BpmProcessInstanceStatusEvent;
import cn.iocoder.yudao.module.bpm.api.event.BpmProcessInstanceStatusEventListener;
import jakarta.annotation.Resource;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

/**
 * 档案借阅单审批状态监听器
 *
 * 监听 BPM 流程实例状态变更事件，回写借阅单状态：审批通过→借出中（并锁定档案），驳回→已驳回，撤回→草稿
 */
@Component
@Slf4j
public class ArchiveBorrowStatusListener extends BpmProcessInstanceStatusEventListener {

    /** 档案借阅审批流程定义 key，需与 {@code docs/sql/archive_borrow_approve.bpmn} 保持一致 */
    private static final String BORROW_PROCESS_DEFINITION_KEY = "archive_borrow_approve";

    @Resource
    private ArchiveBorrowService borrowService;

    @Override
    protected String getProcessDefinitionKey() {
        return BORROW_PROCESS_DEFINITION_KEY;
    }

    @Override
    protected void onEvent(BpmProcessInstanceStatusEvent event) {
        Long borrowId;
        try {
            borrowId = Long.parseLong(event.getBusinessKey());
        } catch (NumberFormatException e) {
            log.warn("[onEvent] businessKey({}) 不是有效的档案借阅单编号", event.getBusinessKey());
            return;
        }

        log.info("[onEvent] 收到BPM审批事件，borrowId={}, status={}", borrowId, event.getStatus());

        // 回写借阅单状态；审批通过时若档案已被他人借出，会抛出异常并回滚本次回写，避免脏状态
        try {
            borrowService.updateBorrowAuditStatus(borrowId, event.getStatus(), event.getReason());
            log.info("[onEvent] 档案借阅单({}) 审批结果回写完成", borrowId);
        } catch (Exception e) {
            log.error("[onEvent] 回写档案借阅单({}) 审批结果失败", borrowId, e);
        }
    }

}