digital-rmb-backend/src/main/java/com/yau/digitalrmb/walletopening/application/WalletOpeningService.java

package com.yau.digitalrmb.walletopening.application;

import com.yau.digitalrmb.institutionidentity.application.InstitutionKeySubject;
import com.yau.digitalrmb.institutionidentity.infrastructure.InstitutionIdentifierApplicationEntity;
import com.yau.digitalrmb.institutionidentity.infrastructure.InstitutionIdentifierApplicationMapper;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.yau.digitalrmb.security.context.JwtUser;
import com.yau.digitalrmb.shared.api.ErrorCode;
import com.yau.digitalrmb.shared.exception.BusinessException;
import com.yau.digitalrmb.walletopening.domain.BankReceivedApplication;
import com.yau.digitalrmb.walletopening.domain.BankReceivedApplicationRepository;
import com.yau.digitalrmb.walletopening.domain.WalletApplication;
import com.yau.digitalrmb.walletopening.domain.WalletApplicationRepository;
import com.yau.digitalrmb.walletopening.interfaces.rest.dto.WalletApplicationRequest;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

@Service
public class WalletOpeningService {
    private static final DateTimeFormatter TIMESTAMP_FORMAT = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");

    @Resource
    private WalletApplicationRepository walletRepository;
    @Resource
    private BankReceivedApplicationRepository bankReceivedRepository;
    @Resource
    private InstitutionIdentifierApplicationMapper institutionIdentifierMapper;

    @Transactional(readOnly = true)
    public UserWalletPageResult getPage(InstitutionKeySubject subject, JwtUser jwtUser) {
        WalletApplication app = walletRepository.findLatest(subject.getUserId(), subject.getSchoolId(), subject.getClassId())
                .orElseGet(() -> {
                    // 未创建记录时，返回一个只包含JWT用户信息的临时对象，不保存到数据库
                    WalletApplication temp = WalletApplication.create(
                            subject.getUserId(), subject.getSchoolId(), subject.getClassId(),
                            jwtUser.getUserName(), jwtUser.getPhone());
                    return temp;
                });
        return new UserWalletPageResult(app);
    }

    @Transactional
    public FaceRecognitionResult updateFaceRecognition(InstitutionKeySubject subject, JwtUser jwtUser, int status) {
        WalletApplication app = walletRepository.findLatest(subject.getUserId(), subject.getSchoolId(), subject.getClassId())
                .orElseGet(() -> {
                    // 首次人脸识别时创建记录
                    WalletApplication newApp = WalletApplication.create(
                            subject.getUserId(), subject.getSchoolId(), subject.getClassId(),
                            jwtUser.getUserName(), jwtUser.getPhone());
                    return walletRepository.save(newApp);
                });
        app.updateFaceRecognition(status);
        walletRepository.update(app);
        return new FaceRecognitionResult(status);
    }

    @Transactional
    public WalletApplicationMessageResult outputApplication(InstitutionKeySubject subject, JwtUser jwtUser, WalletApplicationRequest request) {
        WalletApplication app = walletRepository.findLatest(subject.getUserId(), subject.getSchoolId(), subject.getClassId())
                .orElseGet(() -> {
                    // 首次输出申请报文时创建记录
                    WalletApplication newApp = WalletApplication.create(
                            subject.getUserId(), subject.getSchoolId(), subject.getClassId(),
                            jwtUser.getUserName(), jwtUser.getPhone());
                    return walletRepository.save(newApp);
                });

        if (app.getStatus() != null && app.getStatus().ordinal() >= WalletApplication.Status.OUTPUT.ordinal()) {
            throw new BusinessException(ErrorCode.VALIDATION_ERROR, "申请报文已输出，请勿重复操作");
        }
        if (app.getFaceRecognitionStatus() == null || app.getFaceRecognitionStatus() != 2) {
            throw new BusinessException(ErrorCode.VALIDATION_ERROR, "请先完成人脸识别");
        }
        if (request.getWalletType() == null || request.getWalletType().trim().isEmpty()) {
            throw new BusinessException(ErrorCode.VALIDATION_ERROR, "请选择数字钱包类型");
        }

        // 输出申请报文时才存储身份证号、银行卡号等敏感信息
        app.fillForm(request.getSelectedBank(), request.getWalletType(), request.getInputPhone(),
                request.getInputIdNumber(), request.getInputBankCardNumber(), request.getSignaturePhotoPath(),
                request.getIdNumber(), request.getAccountBank(), request.getBankCardNumber(), request.getAccountBalance());

        String applyTime = LocalDateTime.now().format(TIMESTAMP_FORMAT);
        String applicationId = "APP_" + applyTime;
        String concatenatedMessage = buildConcatenatedMessage(app, applyTime);
        String applicationMessage = buildApplicationMessage(app, applicationId, applyTime);

        app.outputApplication(applicationId, concatenatedMessage, applicationMessage, applyTime);
        walletRepository.update(app);
        return new WalletApplicationMessageResult(app);
    }

    @Transactional
    public WalletSendResult sendApplication(InstitutionKeySubject subject, JwtUser jwtUser) {
        WalletApplication app = walletRepository.findLatest(subject.getUserId(), subject.getSchoolId(), subject.getClassId())
                .orElseThrow(() -> new BusinessException(ErrorCode.RESOURCE_NOT_FOUND, "钱包申请不存在，请先输出申请报文"));
        if (app.getStatus() == null || app.getStatus().ordinal() < WalletApplication.Status.OUTPUT.ordinal()) {
            throw new BusinessException(ErrorCode.VALIDATION_ERROR, "请先输出申请报文");
        }
        if (app.getStatus() == WalletApplication.Status.SUBMITTED) {
            throw new BusinessException(ErrorCode.VALIDATION_ERROR, "申请已发送，请勿重复操作");
        }
        app.submit();
        walletRepository.update(app);

        String receiveTime = LocalDateTime.now().format(TIMESTAMP_FORMAT);
        String receiveId = "BK_RECEIVE_" + receiveTime;
        String orgCode = resolveOrgCode(subject);

        String effectiveIdNumber = app.getInputIdNumber() != null ? app.getInputIdNumber() : app.getIdNumber();
        String effectivePhone = app.getInputPhone() != null ? app.getInputPhone() : app.getPhone();
        String effectiveBankCardNumber = app.getInputBankCardNumber() != null ? app.getInputBankCardNumber() : app.getBankCardNumber();

        BankReceivedApplication received = BankReceivedApplication.receive(
                subject.getUserId(), subject.getSchoolId(), subject.getClassId(),
                receiveId, app.getApplicationId(), orgCode, receiveTime,
                app.getUserName(), effectiveIdNumber, effectivePhone,
                effectiveBankCardNumber, app.getWalletType(), app.getApplyTime());
        bankReceivedRepository.save(received);

        return new WalletSendResult("已提交");
    }

    private String resolveOrgCode(InstitutionKeySubject subject) {
        InstitutionIdentifierApplicationEntity entity = institutionIdentifierMapper.selectOne(
                new LambdaQueryWrapper<InstitutionIdentifierApplicationEntity>()
                        .eq(InstitutionIdentifierApplicationEntity::getUserId, subject.getUserId())
                        .eq(InstitutionIdentifierApplicationEntity::getSchoolId, subject.getSchoolId())
                        .eq(InstitutionIdentifierApplicationEntity::getClassId, subject.getClassId())
                        .eq(InstitutionIdentifierApplicationEntity::getDeleted, false)
                        .isNotNull(InstitutionIdentifierApplicationEntity::getInstitutionIdentifier)
                        .orderByDesc(InstitutionIdentifierApplicationEntity::getCreatedAt)
                        .last("LIMIT 1"));
        return entity == null ? null : entity.getBankCode();
    }

    private String buildConcatenatedMessage(WalletApplication app, String applyTime) {
        String idNumber = app.getInputIdNumber() != null ? app.getInputIdNumber() : app.getIdNumber();
        String phone = app.getInputPhone() != null ? app.getInputPhone() : app.getPhone();
        String bankCardNumber = app.getInputBankCardNumber() != null ? app.getInputBankCardNumber() : app.getBankCardNumber();
        return "APPLY|" + app.getUserName() + "|" + idNumber + "|" + phone + "|"
                + bankCardNumber + "|" + app.getWalletType() + "|" + applyTime;
    }

    private String buildApplicationMessage(WalletApplication app, String applicationId, String applyTime) {
        String idNumber = app.getInputIdNumber() != null ? app.getInputIdNumber() : app.getIdNumber();
        String phone = app.getInputPhone() != null ? app.getInputPhone() : app.getPhone();
        String bankCardNumber = app.getInputBankCardNumber() != null ? app.getInputBankCardNumber() : app.getBankCardNumber();
        return "{\"applicationId\":\"" + applicationId + "\","
                + "\"userName\":\"" + app.getUserName() + "\","
                + "\"idNumber\":\"" + idNumber + "\","
                + "\"phone\":\"" + phone + "\","
                + "\"bankCardNumber\":\"" + bankCardNumber + "\","
                + "\"walletType\":\"" + app.getWalletType() + "\","
                + "\"applyTime\":\"" + applyTime + "\","
                + "\"status\":\"已提交\"}";
    }
}