package com.ruoyi.other.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.account.api.feignClient.AppUserWhitelistClient;
import com.ruoyi.account.api.feignClient.ChargingCardClient;
import com.ruoyi.account.api.feignClient.CompanyAllocateRecordClient;
import com.ruoyi.account.api.feignClient.VinManagementClient;
import com.ruoyi.account.api.model.TAppUserWhitelist;
import com.ruoyi.account.api.model.TChargingCard;
import com.ruoyi.account.api.model.TCompanyAllocateRecord;
import com.ruoyi.account.api.model.TVinManagement;
import com.ruoyi.account.api.vo.CompanyAllocateSummaryVO;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.exception.ServiceException;
import com.ruoyi.common.core.utils.StringUtils;
import com.ruoyi.common.core.web.domain.AjaxResult;
import com.ruoyi.common.security.utils.SecurityUtils;
import com.ruoyi.order.api.feignClient.ChargingOrderClient;
import com.ruoyi.other.api.domain.TFleet;
import com.ruoyi.other.api.domain.TGroupCompany;
import com.ruoyi.other.api.model.TCompanyRechargeRecord;
import com.ruoyi.other.api.vo.CompanyChargingUserVO;
import com.ruoyi.other.mapper.TCompanyRechargeRecordMapper;
import com.ruoyi.other.mapper.TFleetMapper;
import com.ruoyi.other.mapper.TGroupCompanyMapper;
import com.ruoyi.other.service.TGroupCompanyService;
import com.ruoyi.system.api.domain.SysUser;
import com.ruoyi.system.api.feignClient.SysRoleClient;
import com.ruoyi.system.api.feignClient.SysUserClient;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.nio.charset.StandardCharsets;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ThreadLocalRandom;
import java.util.stream.Collectors;

/**
 * <p>
 * 公司（企业）管理 服务实现类
 * </p>
 *
 * @author mxcd
 * @since 2026-09-22
 */
@Slf4j
@Service
public class TGroupCompanyServiceImpl extends ServiceImpl<TGroupCompanyMapper, TGroupCompany> implements TGroupCompanyService {

    /** 金额保留小数位（与 t_company_recharge_record.arrival_amount 一致） */
    private static final int AMOUNT_SCALE = 2;

    /** 公司管理员账号角色标识（内置角色 role_key=company_admin） */
    private static final String COMPANY_ROLE_KEY = "company_admin";

    /** 公司账号角色类型（sys_user.roleType=5） */
    private static final int COMPANY_ROLE_TYPE = 5;

    /** 账户模式：共享模式（新增企业未指定时按此建档） */
    private static final int ACCOUNT_MODE_SHARED = 1;

    /** 账户模式：分配模式 */
    private static final int ACCOUNT_MODE_ALLOCATION = 2;

    /** 充电用户类型：VIN码 */
    private static final int USER_TYPE_VIN = 1;

    /** 充电用户类型：刷卡 */
    private static final int USER_TYPE_CARD = 2;

    /** 充电用户类型：白名单 */
    private static final int USER_TYPE_WHITELIST = 3;

    /** 账户状态：正常 */
    private static final int ACCOUNT_STATUS_NORMAL = 1;

    /** 账户状态：欠款 */
    private static final int ACCOUNT_STATUS_OVERDUE = 2;

    /** 公司登录账号前缀：admin */
    private static final String ACCOUNT_PREFIX = "admin";

    /** 公司登录账号随机数字位数 */
    private static final int ACCOUNT_RANDOM_DIGITS = 4;

    /** 账号生成查重重试上限 */
    private static final int ACCOUNT_GENERATE_MAX_ATTEMPTS = 20;

    /** 新增公司初始密码（明文，落库前按登录口径 HMAC-MD5 处理） */
    private static final String DEFAULT_INITIAL_PASSWORD = "123456";

    /** 密码传输 HMAC 密钥（与前端 CryptoJS.HmacMD5(password, 'password') 口径一致） */
    private static final String PASSWORD_HMAC_KEY = "password";

    /**
     * 车队 Mapper。
     * 此处注入 Mapper 而非 TFleetService：TFleetServiceImpl 已依赖 TGroupCompanyService，
     * 反向注入 Service 会形成循环引用（Spring Boot 2.7 默认禁止）。
     */
    @Resource
    private TFleetMapper fleetMapper;

    /** 公司充值记录 Mapper */
    @Resource
    private TCompanyRechargeRecordMapper companyRechargeRecordMapper;

    /** 系统用户远程客户端（公司登录账号同步） */
    @Resource
    private SysUserClient sysUserClient;

    /** 系统角色远程客户端（公司默认角色查询） */
    @Resource
    private SysRoleClient sysRoleClient;

    /** VIN管理远程客户端（公司详情-充电用户信息聚合使用） */
    @Resource
    private VinManagementClient vinManagementClient;

    /** 充电卡远程客户端（公司详情-充电用户信息聚合使用） */
    @Resource
    private ChargingCardClient chargingCardClient;

    /** 白名单远程客户端（公司详情-充电用户信息聚合使用） */
    @Resource
    private AppUserWhitelistClient appUserWhitelistClient;

    /** 企业额度分配记录远程客户端（结算时写消费流水、幂等判定使用） */
    @Resource
    private CompanyAllocateRecordClient companyAllocateRecordClient;

    /** 充电订单远程客户端（账户模式切换前进行中订单校验使用） */
    @Resource
    private ChargingOrderClient chargingOrderClient;

    @Override
    public TGroupCompany getDetail(Integer id) {
        if (id == null) {
            return null;
        }
        TGroupCompany company = getById(id);
        if (company == null) {
            return null;
        }
        // 车队数量：t_fleet 逻辑删除由 @TableLogic 自动过滤，统计含停用车队
        company.setFleetCount(countFleet(id));
        // 月充值金额：本月到账金额合计，仅覆盖响应对象，不落库
        company.setMonthRechargeAmount(sumCurrentMonthRechargeAmount(id));
        // 累计充值到账金额：作为公司总账户余额展示（额度分配弹窗使用），仅覆盖响应对象，不落库
        company.setTotalRechargeAmount(sumRechargeAmount(id));
        return company;
    }

    @Override
    public TGroupCompany getDetailWithChargingUsers(Integer id) {
        TGroupCompany company = getDetail(id);
        if (company == null) {
            return null;
        }
        List<TVinManagement> vins = fetchVins(id);
        // VIN码车辆数量：按公司统计未删除车辆（与 VIN 列表接口同口径），降级时返回 0
        company.setVinCount(vins.size());
        company.setChargingUsers(buildChargingUsers(company, vins));
        return company;
    }

    /**
     * 聚合公司充电用户信息：VIN码、刷卡、白名单三类数据按统一结构返回。
     * 仅公司详情使用；remoteGet 远程调用保持 getDetail（不聚合），避免跨服务循环调用。
     */
    private List<CompanyChargingUserVO> buildChargingUsers(TGroupCompany company, List<TVinManagement> vins) {
        Integer companyId = company.getId();
        Integer accountMode = company.getAccountMode();
        List<CompanyChargingUserVO> result = new ArrayList<>();

        List<TChargingCard> cards = fetchCards(companyId);
        List<TAppUserWhitelist> whitelists = fetchWhitelists(companyId);

        List<Integer> fleetIds = new ArrayList<>();
        for (TVinManagement vin : vins) {
            if (vin.getFleetId() != null) {
                fleetIds.add(vin.getFleetId());
            }
        }
        for (TChargingCard card : cards) {
            if (card.getFleetId() != null) {
                fleetIds.add(card.getFleetId());
            }
        }
        for (TAppUserWhitelist whitelist : whitelists) {
            if (whitelist.getFleetId() != null) {
                fleetIds.add(whitelist.getFleetId());
            }
        }
        Map<Integer, String> fleetNameMap = loadFleetNameMap(fleetIds);

        String companyName = company.getName();
        BigDecimal companyBalance = company.getAvailableBalance();
        for (TVinManagement vin : vins) {
            result.add(buildRow(USER_TYPE_VIN + "-" + vin.getId(), USER_TYPE_VIN, vin.getVin(),
                    companyName, fleetNameMap.get(vin.getFleetId()), accountMode,
                    vin.getBalance(), companyBalance, vin.getStatus()));
        }
        for (TChargingCard card : cards) {
            result.add(buildRow(USER_TYPE_CARD + "-" + card.getId(), USER_TYPE_CARD, card.getCardNo(),
                    companyName, fleetNameMap.get(card.getFleetId()), accountMode,
                    card.getBalance(), companyBalance, card.getStatus()));
        }
        for (TAppUserWhitelist whitelist : whitelists) {
            result.add(buildRow(USER_TYPE_WHITELIST + "-" + whitelist.getId(), USER_TYPE_WHITELIST, whitelist.getPhone(),
                    companyName, fleetNameMap.get(whitelist.getFleetId()), accountMode,
                    whitelist.getBalance(), companyBalance, whitelist.getStatus()));
        }
        return result;
    }

    /**
     * 组装单行充电用户信息。可用余额：分配模式取子账户余额/初始分配额度，共享模式取公司可用余额。
     * 超额/账户状态按余额正负推算：余额为负时超额=|余额|、账户状态=欠款；否则无超额、状态正常。
     */
    private CompanyChargingUserVO buildRow(String rowKey, Integer userType, String userInfo,
                                           String companyName, String fleetName, Integer accountMode,
                                           BigDecimal accountBalance, BigDecimal companyBalance, Integer status) {
        CompanyChargingUserVO vo = new CompanyChargingUserVO();
        vo.setRowKey(rowKey);
        vo.setUserType(userType);
        vo.setUserInfo(userInfo);
        vo.setCompanyName(companyName);
        vo.setFleetName(fleetName);
        vo.setAccountMode(accountMode);
        vo.setBalance(resolveBalance(accountMode, accountBalance, companyBalance));
        vo.setOverrun(null);
        vo.setAccountStatus(ACCOUNT_STATUS_NORMAL);
        BigDecimal balance = vo.getBalance();
        if (balance != null && balance.compareTo(BigDecimal.ZERO) < 0) {
            vo.setOverrun(balance.abs().setScale(AMOUNT_SCALE, RoundingMode.HALF_UP));
            vo.setAccountStatus(ACCOUNT_STATUS_OVERDUE);
        }
        vo.setStatus(status);
        return vo;
    }

    /**
     * 计算可用余额：分配模式=子账户余额/初始分配额度，共享模式=公司可用余额
     */
    private BigDecimal resolveBalance(Integer accountMode, BigDecimal accountBalance, BigDecimal companyBalance) {
        if (Integer.valueOf(ACCOUNT_MODE_ALLOCATION).equals(accountMode)) {
            return accountBalance;
        }
        if (Integer.valueOf(ACCOUNT_MODE_SHARED).equals(accountMode)) {
            return companyBalance;
        }
        return null;
    }

    /**
     * 远程查询公司VIN码列表（降级返回空列表，保证详情主流程不受影响）
     */
    private List<TVinManagement> fetchVins(Integer companyId) {
        try {
            R<List<TVinManagement>> response = vinManagementClient.listByCompany(companyId);
            return (response != null && R.isSuccess(response) && response.getData() != null)
                    ? response.getData() : new ArrayList<>();
        } catch (Exception e) {
            return new ArrayList<>();
        }
    }

    /**
     * 远程查询公司卡片列表（降级返回空列表）
     */
    private List<TChargingCard> fetchCards(Integer companyId) {
        try {
            R<List<TChargingCard>> response = chargingCardClient.listByCompany(companyId);
            return (response != null && R.isSuccess(response) && response.getData() != null)
                    ? response.getData() : new ArrayList<>();
        } catch (Exception e) {
            return new ArrayList<>();
        }
    }

    /**
     * 远程查询公司白名单列表（降级返回空列表）
     */
    private List<TAppUserWhitelist> fetchWhitelists(Integer companyId) {
        try {
            R<List<TAppUserWhitelist>> response = appUserWhitelistClient.listByCompany(companyId);
            return (response != null && R.isSuccess(response) && response.getData() != null)
                    ? response.getData() : new ArrayList<>();
        } catch (Exception e) {
            return new ArrayList<>();
        }
    }

    /**
     * 批量查询车队名称（本地库 t_fleet，逻辑删除由 @TableLogic 自动过滤）
     */
    private Map<Integer, String> loadFleetNameMap(List<Integer> fleetIds) {
        Map<Integer, String> map = new HashMap<>();
        if (fleetIds == null || fleetIds.isEmpty()) {
            return map;
        }
        List<Integer> distinctIds = fleetIds.stream()
                .filter(Objects::nonNull)
                .distinct()
                .collect(Collectors.toList());
        if (distinctIds.isEmpty()) {
            return map;
        }
        List<TFleet> fleets = fleetMapper.selectList(
                Wrappers.<TFleet>lambdaQuery().in(TFleet::getId, distinctIds));
        for (TFleet fleet : fleets) {
            map.put(fleet.getId(), fleet.getFleetName());
        }
        return map;
    }

    /**
     * 统计公司未删除的车队数量
     */
    private Integer countFleet(Integer companyId) {
        Long count = fleetMapper.selectCount(Wrappers.<TFleet>lambdaQuery().eq(TFleet::getCompanyId, companyId));
        return count == null ? 0 : count.intValue();
    }

    /**
     * 统计公司本月（自然月，按充值时间 [本月1日 00:00:00, 次月1日 00:00:00)）到账金额合计
     */
    private BigDecimal sumCurrentMonthRechargeAmount(Integer companyId) {
        LocalDateTime start = monthStart(LocalDate.now());
        LocalDateTime end = start.plusMonths(1);
        List<TCompanyRechargeRecord> records = companyRechargeRecordMapper.selectList(
                Wrappers.<TCompanyRechargeRecord>lambdaQuery()
                        .eq(TCompanyRechargeRecord::getCompanyId, companyId)
                        .ge(TCompanyRechargeRecord::getRechargeTime, start)
                        .lt(TCompanyRechargeRecord::getRechargeTime, end));
        return sumArrivalAmount(records);
    }

    /**
     * 统计公司累计充值到账金额（全部有效充值记录，逻辑删除由 @TableLogic 自动过滤）
     */
    private BigDecimal sumRechargeAmount(Integer companyId) {
        List<TCompanyRechargeRecord> records = companyRechargeRecordMapper.selectList(
                Wrappers.<TCompanyRechargeRecord>lambdaQuery()
                        .eq(TCompanyRechargeRecord::getCompanyId, companyId));
        return sumArrivalAmount(records);
    }

    /**
     * 当月起始时刻（本月1日 00:00:00）
     */
    static LocalDateTime monthStart(LocalDate today) {
        return today.withDayOfMonth(1).atStartOfDay();
    }

    /**
     * 汇总到账金额（空集合返回 0.00，忽略空金额）
     */
    static BigDecimal sumArrivalAmount(List<TCompanyRechargeRecord> records) {
        if (records == null || records.isEmpty()) {
            return BigDecimal.ZERO.setScale(AMOUNT_SCALE, RoundingMode.HALF_UP);
        }
        return records.stream()
                .map(TCompanyRechargeRecord::getArrivalAmount)
                .filter(Objects::nonNull)
                .reduce(BigDecimal.ZERO, BigDecimal::add)
                .setScale(AMOUNT_SCALE, RoundingMode.HALF_UP);
    }

    /**
     * 查询公司默认角色ID（内置角色 role_key=company_admin）
     */
    private Long resolveCompanyRoleId() {
        R<Long> roleR = sysRoleClient.getRoleIdByRoleKey(COMPANY_ROLE_KEY);
        if (roleR == null || 200 != roleR.getCode() || roleR.getData() == null) {
            throw new RuntimeException("系统内置角色【" + COMPANY_ROLE_KEY + "】不存在或已停用，请先配置角色");
        }
        return roleR.getData();
    }

    /**
     * 检查登录账号在 t_group_company 中是否已存在（编辑时排除自身）
     */
    private boolean accountExists(String account, Integer excludeId) {
        Long count = count(Wrappers.<TGroupCompany>lambdaQuery()
                .eq(TGroupCompany::getAccount, account)
                .ne(excludeId != null, TGroupCompany::getId, excludeId));
        return count != null && count > 0;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public AjaxResult addCompany(TGroupCompany company) {
        // 登录账号由系统自动生成：admin + 4位随机数字，前端不可指定、不可修改
        String account = generateCompanyAccount();
        company.setAccount(account);
        // 添加企业弹窗不再配置账户模式：未指定时按共享模式建档，后续可在“账户模式”弹窗切换
        if (company.getAccountMode() == null) {
            company.setAccountMode(ACCOUNT_MODE_SHARED);
        }
        // 初始密码固定 123456，按登录口径 HMAC-MD5 后由 system 侧 BCrypt 落库
        String password = hmacMd5(DEFAULT_INITIAL_PASSWORD, PASSWORD_HMAC_KEY);
        Long roleId = resolveCompanyRoleId();
        SysUser user = new SysUser();
        user.setUserName(account);
        user.setNickName(company.getName());
        user.setPhonenumber(company.getContactPhone());
        user.setPassword(password);
        user.setStatus("0");
        user.setDelFlag("0");
        user.setRoleId(roleId);
        user.setRoleType(COMPANY_ROLE_TYPE);
        user.setPassWordUpdate(new Date());
        R<Long> r = sysUserClient.addSysUser(user);
        if (r == null || 200 != r.getCode()) {
            throw new RuntimeException(r == null ? "创建登录账号失败" : r.getMsg());
        }
        save(company);
        // 回写 objectId=公司ID（账号创建时公司尚未保存）
        R<SysUser> createdR = sysUserClient.getSysUser(r.getData());
        if (createdR != null && 200 == createdR.getCode() && createdR.getData() != null) {
            SysUser created = createdR.getData();
            created.setObjectId(company.getId());
            sysUserClient.updateUser(created);
        }
        // 返回生成的登录账号，供添加页回显（初始密码为固定 123456）
        return AjaxResult.success("操作成功", account);
    }

    /**
     * 生成公司登录账号：admin + 4位随机数字，公司表与 sys_user 双查重，冲突重试
     */
    private String generateCompanyAccount() {
        int start = (int) Math.pow(10, ACCOUNT_RANDOM_DIGITS - 1);
        int bound = (int) Math.pow(10, ACCOUNT_RANDOM_DIGITS) - start;
        for (int i = 0; i < ACCOUNT_GENERATE_MAX_ATTEMPTS; i++) {
            String candidate = ACCOUNT_PREFIX + (start + ThreadLocalRandom.current().nextInt(bound));
            if (accountExists(candidate, null)) {
                continue;
            }
            R<SysUser> existR = sysUserClient.queryUserByUserName(candidate);
            SysUser existUser = existR == null ? null : existR.getData();
            if (existUser == null) {
                return candidate;
            }
        }
        throw new ServiceException("登录账号生成失败，请稍后重试");
    }

    /**
     * HMAC-MD5（小写 Hex），与前端 CryptoJS.HmacMD5(text, key) 口径一致
     */
    private String hmacMd5(String text, String key) {
        try {
            Mac mac = Mac.getInstance("HmacMD5");
            mac.init(new SecretKeySpec(key.getBytes(StandardCharsets.UTF_8), "HmacMD5"));
            byte[] bytes = mac.doFinal(text.getBytes(StandardCharsets.UTF_8));
            StringBuilder hex = new StringBuilder(bytes.length * 2);
            for (byte b : bytes) {
                hex.append(Character.forDigit((b >> 4) & 0xF, 16));
                hex.append(Character.forDigit(b & 0xF, 16));
            }
            return hex.toString();
        } catch (Exception e) {
            throw new ServiceException("密码处理失败: " + e.getMessage());
        }
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public AjaxResult editCompany(TGroupCompany company) {
        TGroupCompany old = getById(company.getId());
        if (old == null) {
            return AjaxResult.error("公司不存在");
        }
        // 编辑支持修改登录账号：公司表唯一性校验（排除自身）
        if (StringUtils.hasText(company.getAccount())) {
            if (accountExists(company.getAccount(), company.getId())) {
                return AjaxResult.error("登录账号不能重复");
            }
        }
        String account = StringUtils.hasText(company.getAccount()) ? company.getAccount() : old.getAccount();
        if (StringUtils.hasText(account)) {
            String error = syncCompanyUserOnEdit(company, old.getAccount(), account);
            if (error != null) {
                return AjaxResult.error(error);
            }
        }
        updateById(company);
        return AjaxResult.success();
    }

    /**
     * 编辑公司时同步登录账号：按旧账号定位用户后更新为新账号（支持改账号）；
     * 密码有值时重置（留空不修改）；用户不存在则按新账号补建
     *
     * @return 冲突等业务错误信息，null 表示成功
     */
    private String syncCompanyUserOnEdit(TGroupCompany company, String oldAccount, String newAccount) {
        // 账号变更时校验新账号未被其他用户占用（updateSysUser 无唯一性校验，需在此前置拦截）
        if (StringUtils.hasText(oldAccount) && !newAccount.equals(oldAccount)) {
            R<SysUser> occupantR = sysUserClient.queryUserByUserName(newAccount);
            SysUser occupant = occupantR == null ? null : occupantR.getData();
            if (occupant != null) {
                R<SysUser> ownerR = sysUserClient.queryUserByUserName(oldAccount);
                SysUser owner = ownerR == null ? null : ownerR.getData();
                if (owner == null || !occupant.getUserId().equals(owner.getUserId())) {
                    return "登录账号不能重复";
                }
            }
        }
        // 按旧账号定位既有用户（账号未变时与新账号一致），避免改名后误走补建导致双账号
        R<SysUser> userR = sysUserClient.queryUserByUserName(StringUtils.hasText(oldAccount) ? oldAccount : newAccount);
        SysUser user = userR == null ? null : userR.getData();
        if (user == null) {
            if (!StringUtils.hasText(company.getPassword())) {
                throw new RuntimeException("补建登录账号时登录密码不能为空");
            }
            Long roleId = resolveCompanyRoleId();
            SysUser newUser = new SysUser();
            newUser.setUserName(newAccount);
            newUser.setNickName(company.getName());
            newUser.setPhonenumber(company.getContactPhone());
            newUser.setPassword(company.getPassword());
            newUser.setStatus("0");
            newUser.setDelFlag("0");
            newUser.setRoleId(roleId);
            newUser.setRoleType(COMPANY_ROLE_TYPE);
            newUser.setObjectId(company.getId());
            newUser.setPassWordUpdate(new Date());
            R<Long> addR = sysUserClient.addSysUser(newUser);
            if (addR == null || 200 != addR.getCode()) {
                throw new RuntimeException(addR == null ? "创建登录账号失败" : addR.getMsg());
            }
            return null;
        }
        // 远程查询返回的密码字段可能是哈希或脱敏值，显式清空避免再次写回
        user.setPassword(null);
        user.setPassWordUpdate(null);
        user.setUserName(newAccount);
        user.setNickName(company.getName());
        user.setPhonenumber(company.getContactPhone());
        R<Boolean> updateR = sysUserClient.updateSysUser(user);
        if (updateR == null || 200 != updateR.getCode()) {
            throw new RuntimeException(updateR == null ? "更新登录账号失败" : updateR.getMsg());
        }
        // 密码有值时重置（前端已 HMAC-MD5，由 system 侧 BCrypt 落库，与新增链路一致）
        if (StringUtils.hasText(company.getPassword())) {
            SysUser pwdUser = new SysUser();
            pwdUser.setUserId(user.getUserId());
            pwdUser.setPassword(company.getPassword());
            R pwdR = sysUserClient.resetPassword(pwdUser);
            if (pwdR == null || 200 != pwdR.getCode()) {
                throw new RuntimeException(pwdR == null ? "重置登录密码失败" : pwdR.getMsg());
            }
        }
        return null;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public AjaxResult delCompany(Integer id) {
        TGroupCompany company = getById(id);
        if (company == null) {
            return AjaxResult.error("公司不存在");
        }
        removeById(id);
        if (StringUtils.hasText(company.getAccount())) {
            R<SysUser> userR = sysUserClient.queryUserByUserName(company.getAccount());
            SysUser user = userR == null ? null : userR.getData();
            if (user != null) {
                user.setDelFlag("2");
                sysUserClient.updateUser(user);
            }
        }
        return AjaxResult.success();
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public AjaxResult updateAccountMode(Integer id, Integer accountMode) {
        if (id == null) {
            return AjaxResult.error("公司ID不能为空");
        }
        if (accountMode == null
                || (accountMode != ACCOUNT_MODE_SHARED && accountMode != ACCOUNT_MODE_ALLOCATION)) {
            return AjaxResult.error("账户模式不合法");
        }
        TGroupCompany company = getById(id);
        if (company == null) {
            return AjaxResult.error("公司不存在");
        }
        // 目标模式与当前一致：幂等直接返回
        if (Objects.equals(company.getAccountMode(), accountMode)) {
            return AjaxResult.success();
        }
        // 统一校验：无论切换方向，存在进行中充电订单均拒绝切换
        AjaxResult chargingCheck = ensureNoActiveChargingOrder(id);
        if (chargingCheck != null) {
            return chargingCheck;
        }
        // 共享 → 分配：仅切换模式，不涉及资金回退
        if (accountMode == ACCOUNT_MODE_ALLOCATION) {
            TGroupCompany update = new TGroupCompany();
            update.setId(id);
            update.setAccountMode(accountMode);
            updateById(update);
            return AjaxResult.success();
        }
        // 分配 → 共享：校验在途业务后回收全部分配余额
        return switchAllocationToShared(id, company);
    }

    /**
     * 校验公司无进行中充电订单（三表合计，状态 2=启动中/3=充电中/4=停止中）。
     * 通过返回 null；不通过返回可直接回给前端的错误结果。
     * 账户模式双向切换均须先通过本校验。
     */
    private AjaxResult ensureNoActiveChargingOrder(Integer id) {
        R<Integer> activeCountResult;
        try {
            activeCountResult = chargingOrderClient.countActiveByCompany(id);
        } catch (RuntimeException ex) {
            log.error("[模式切换] 统计进行中充电订单异常 companyId={}", id, ex);
            return AjaxResult.error("校验充电状态失败，请稍后重试");
        }
        if (activeCountResult == null || R.SUCCESS != activeCountResult.getCode()) {
            return AjaxResult.error("校验充电状态失败，请稍后重试");
        }
        Integer activeCount = activeCountResult.getData();
        if (activeCount != null && activeCount > 0) {
            return AjaxResult.error("该公司存在正在充电的订单，暂不允许切换账户模式");
        }
        return null;
    }

    /**
     * 分配模式切换为共享模式：
     * <ol>
     *   <li>校验公司与三类主体均无未释放充电锁定额</li>
     *   <li>公司余额预加回回收总额 + 切换为共享模式（本地事务）</li>
     *   <li>远程回收三类主体全部余额并写双向流水（account 侧锁内事务，幂等）</li>
     *   <li>按实际回收额与预加回额差额校准公司余额（并发分配竞态兜底）</li>
     * </ol>
     * 进行中充电订单校验已在 updateAccountMode 公共入口完成。
     */
    private AjaxResult switchAllocationToShared(Integer id, TGroupCompany company) {
        // 1. 公司锁定额校验（在途充电锁定未释放）
        BigDecimal companyLocked = company.getLockedAmount();
        if (companyLocked != null && companyLocked.signum() > 0) {
            return AjaxResult.error("公司存在未释放的充电锁定金额，暂不允许切换为共享模式");
        }
        // 2. 三类主体余额与锁定额统计
        R<CompanyAllocateSummaryVO> summaryResult;
        try {
            summaryResult = companyAllocateRecordClient.sumAllocatedBalance(id);
        } catch (RuntimeException ex) {
            log.error("[模式切换] 统计分配余额异常 companyId={}", id, ex);
            return AjaxResult.error("查询分配余额失败，请稍后重试");
        }
        if (summaryResult == null || R.SUCCESS != summaryResult.getCode() || summaryResult.getData() == null) {
            return AjaxResult.error("查询分配余额失败，请稍后重试");
        }
        CompanyAllocateSummaryVO summary = summaryResult.getData();
        if (summary.getTotalLocked() != null && summary.getTotalLocked().signum() > 0) {
            return AjaxResult.error("存在充电锁定金额未释放，暂不允许切换为共享模式");
        }
        BigDecimal total = summary.getTotalBalance() == null ? BigDecimal.ZERO : summary.getTotalBalance();
        BigDecimal companyBalanceBefore = company.getAvailableBalance() == null
                ? BigDecimal.ZERO : company.getAvailableBalance();
        // 3. 公司余额加回 + 模式切换（本地事务）
        if (!updateCompanyToShared(id, total)) {
            throw new ServiceException("公司余额更新失败");
        }
        // 4. 远程回收三类主体余额（account 侧三把公司级锁串行、事务、幂等），失败回滚公司余额与模式
        BigDecimal actual;
        try {
            actual = recycleAllocatedBalanceRemote(id, company, companyBalanceBefore);
        } catch (RuntimeException ex) {
            log.error("[模式切换] 远程回收分配余额异常 companyId={}", id, ex);
            rollbackModeSwitch(id, total);
            throw new ServiceException("回收分配余额失败，请稍后重试");
        }
        // 5. 差额调整：回收与统计间存在并发分配时，按实际回收额校准公司余额
        BigDecimal diff = actual.subtract(total);
        if (diff.signum() != 0) {
            boolean adjusted = lambdaUpdate()
                    .eq(TGroupCompany::getId, id)
                    .setSql("available_balance = IFNULL(available_balance, 0) + (" + diff.toPlainString() + ")")
                    .update();
            if (!adjusted) {
                log.error("[模式切换] 公司余额差额调整失败 companyId={} diff={}", id, diff.toPlainString());
            }
        }
        log.info("[模式切换] 分配→共享成功 companyId={} 回收总额={}", id, actual.toPlainString());
        return AjaxResult.success("账户模式已切换为共享模式，回收分配余额 " + actual.toPlainString() + " 元");
    }

    /** 更新公司余额（加回回收额）并切换为共享模式，返回是否更新成功 */
    private boolean updateCompanyToShared(Integer id, BigDecimal total) {
        if (total.signum() > 0) {
            return lambdaUpdate()
                    .eq(TGroupCompany::getId, id)
                    .setSql("available_balance = IFNULL(available_balance, 0) + " + total.toPlainString())
                    .set(TGroupCompany::getAccountMode, ACCOUNT_MODE_SHARED)
                    .update();
        }
        TGroupCompany update = new TGroupCompany();
        update.setId(id);
        update.setAccountMode(ACCOUNT_MODE_SHARED);
        return updateById(update);
    }

    /** 远程回收三类主体分配余额，失败（远程失败码/返回体异常）抛出 ServiceException 由调用方补偿 */
    private BigDecimal recycleAllocatedBalanceRemote(Integer id, TGroupCompany company,
                                                     BigDecimal companyBalanceBefore) {
        String operatorName = null;
        try {
            operatorName = SecurityUtils.getLoginUser().getUsername();
        } catch (Exception ignored) {
            // 无安全上下文时（内部调用）操作人留空
        }
        R<BigDecimal> recycleResult = companyAllocateRecordClient.recycleAllocatedBalance(id, operatorName,
                company.getName(), companyBalanceBefore);
        if (recycleResult == null || R.SUCCESS != recycleResult.getCode() || recycleResult.getData() == null) {
            String msg = recycleResult == null ? "远程调用失败" : recycleResult.getMsg();
            log.error("[模式切换] 回收分配余额失败 companyId={} msg={}", id, msg);
            throw new ServiceException("回收分配余额失败：" + msg);
        }
        return recycleResult.getData();
    }

    /**
     * 回收失败补偿：公司余额减回预加回额、模式恢复为分配模式。
     * 仅当模式仍为共享时执行恢复，避免覆盖后续并发操作；恢复失败仅记录日志（下轮对账/重试兜底）。
     */
    private void rollbackModeSwitch(Integer id, BigDecimal total) {
        try {
            boolean rollbacked = lambdaUpdate()
                    .eq(TGroupCompany::getId, id)
                    .eq(TGroupCompany::getAccountMode, ACCOUNT_MODE_SHARED)
                    .setSql("available_balance = IFNULL(available_balance, 0) - " + total.toPlainString())
                    .set(TGroupCompany::getAccountMode, ACCOUNT_MODE_ALLOCATION)
                    .update();
            log.warn("[模式切换] 回收失败已回滚 companyId={} rollbacked={}", id, rollbacked);
        } catch (RuntimeException ex) {
            log.error("[模式切换] 回收失败回滚异常 companyId={}", id, ex);
        }
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public BigDecimal settleBalance(Integer companyId, BigDecimal lockedAmount, BigDecimal actualAmount, String orderCode,
                                    String userInfo, String userName, String remark) {
        if (companyId == null) {
            throw new ServiceException("公司ID不能为空");
        }
        BigDecimal lock = lockedAmount == null ? BigDecimal.ZERO : lockedAmount;
        BigDecimal actual = actualAmount == null ? BigDecimal.ZERO : actualAmount;
        if (lock.compareTo(BigDecimal.ZERO) < 0 || actual.compareTo(BigDecimal.ZERO) < 0) {
            throw new ServiceException("锁定金额与实际消费金额不能为负数");
        }
        boolean hasOrderCode = StringUtils.isNotEmpty(orderCode);
        // 幂等：账户侧已落该订单消费流水 → 已结算过，直接返回当前余额（结算失败回退订单状态后的补偿重试不会重复结算）
        if (hasOrderCode && isOrderConsumed(orderCode)) {
            TGroupCompany existed = getById(companyId);
            log.info("[公司结算] 订单已结算，幂等跳过：orderCode={}, companyId={}", orderCode, companyId);
            return existed == null || existed.getAvailableBalance() == null ? BigDecimal.ZERO
                    : existed.getAvailableBalance().setScale(AMOUNT_SCALE, RoundingMode.HALF_UP);
        }
        boolean updated = lambdaUpdate()
                .eq(TGroupCompany::getId, companyId)
                .setSql("locked_amount = GREATEST(IFNULL(locked_amount, 0) - " + lock.toPlainString() + ", 0)"
                        + ", available_balance = IFNULL(available_balance, 0) + " + lock.toPlainString()
                        + " - " + actual.toPlainString())
                .update();
        if (!updated) {
            throw new ServiceException("公司不存在或已删除");
        }
        TGroupCompany latest = getById(companyId);
        BigDecimal after = latest == null || latest.getAvailableBalance() == null ? BigDecimal.ZERO
                : latest.getAvailableBalance().setScale(AMOUNT_SCALE, RoundingMode.HALF_UP);
        if (hasOrderCode) {
            // 公司余额在公司库、消费流水在账户库，无法同事务：流水尽力写入，写入成功即作为该订单的结算幂等标记
            BigDecimal before = after.add(actual).subtract(lock);
            writeConsumeQuietly(latest, orderCode, userInfo, userName, before, actual.negate(), remark);
        }
        return after;
    }

    /**
     * 判定账户侧是否已存在该订单的消费流水（查询异常按「未结算」处理，交由订单侧兜底扫描兜住）
     */
    private boolean isOrderConsumed(String orderCode) {
        try {
            R<List<String>> result = companyAllocateRecordClient.listConsumedOrderCodes(
                    Collections.singletonList(orderCode));
            return result != null && R.SUCCESS == result.getCode() && result.getData() != null
                    && result.getData().contains(orderCode);
        } catch (Exception ex) {
            log.error("[公司结算] 查询消费流水失败，按未结算处理：orderCode={}", orderCode, ex);
            return false;
        }
    }

    /**
     * 写企业额度分配记录-消费流水（共享模式记企业账户）。失败只记日志，不影响公司余额结算主流程
     */
    private void writeConsumeQuietly(TGroupCompany company, String orderCode, String userInfo, String userName,
                                     BigDecimal before, BigDecimal amount, String remark) {
        if (company == null || company.getId() == null) {
            log.error("[公司结算] 缺少公司信息，无法写消费流水：orderCode={}", orderCode);
            return;
        }
        String userInfoValue = StringUtils.isNotEmpty(userInfo) ? userInfo : company.getName();
        if (StringUtils.isEmpty(userInfoValue)) {
            userInfoValue = String.valueOf(company.getId());
        }
        String userNameValue = StringUtils.isNotEmpty(userName) ? userName : company.getName();
        try {
            R<Boolean> result = companyAllocateRecordClient.recordConsume(company.getId(),
                    TCompanyAllocateRecord.USER_TYPE_COMPANY, userInfoValue, userNameValue, before, amount,
                    orderCode, remark);
            if (result == null || R.SUCCESS != result.getCode() || !Boolean.TRUE.equals(result.getData())) {
                log.error("[公司结算] 消费流水写入失败：orderCode={}, companyId={}, msg={}", orderCode, company.getId(),
                        result == null ? "null" : result.getMsg());
            }
        } catch (Exception ex) {
            log.error("[公司结算] 消费流水写入异常：orderCode={}, companyId={}", orderCode, company.getId(), ex);
        }
    }

}