package com.doumee.service.business.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.doumee.config.jwt.JwtTokenUtil;
import com.doumee.core.constants.ResponseStatus;
import com.doumee.core.exception.BusinessException;
import com.doumee.core.model.LoginUserInfo;
import com.doumee.core.utils.Constants;
import com.doumee.dao.business.MemberMapper;
import com.doumee.dao.business.YwCustomerMapper;
import com.doumee.dao.business.model.Member;
import com.doumee.dao.business.model.YwCustomer;
import com.doumee.dao.system.dto.LoginPhoneDTO;
import com.doumee.service.business.YwCustomerH5AuthService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Collections;
import java.util.Date;

@Service
public class YwCustomerH5AuthServiceImpl implements YwCustomerH5AuthService {

    @Autowired
    private YwCustomerMapper ywCustomerMapper;
    @Autowired
    private MemberMapper memberMapper;
    @Autowired
    private JwtTokenUtil jwtTokenUtil;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public String loginByPhone(LoginPhoneDTO dto) {
        YwCustomer customer = findActiveByPhone(dto.getPhone());
        bindOpenId(customer, dto.getOpenid());
        touchLogin(customer);
        return jwtTokenUtil.generateToken(toLoginUserInfo(customer));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public String loginByCustomerId(Integer customerId) {
        YwCustomer customer = requireActiveCustomer(customerId);
        touchLogin(customer);
        return jwtTokenUtil.generateToken(toLoginUserInfo(customer));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public String loginByOpenId(String openId) {
        if (StringUtils.isBlank(openId)) {
            return null;
        }
        YwCustomer customer = ywCustomerMapper.selectOne(new QueryWrapper<YwCustomer>().lambda()
                .eq(YwCustomer::getIsdeleted, Constants.ZERO)
                .eq(YwCustomer::getOpenid, openId.trim())
                .last(" limit 1 "));
        if (customer == null) {
            return null;
        }
        assertCustomerEnabled(customer);
        touchLogin(customer);
        return jwtTokenUtil.generateToken(toLoginUserInfo(customer));
    }

    @Override
    public LoginUserInfo buildLoginUserInfo(Integer customerId) {
        return toLoginUserInfo(requireActiveCustomer(customerId));
    }

    @Override
    public void assertActiveCustomerByPhone(String phone) {
        findActiveByPhone(phone);
    }

    private YwCustomer findActiveByPhone(String phone) {
        if (StringUtils.isBlank(phone)) {
            throw new BusinessException(ResponseStatus.BAD_REQUEST.getCode(), "手机号不能为空");
        }
        YwCustomer customer = findCustomerByPhone(phone.trim());
        if (customer == null) {
            throw new BusinessException(ResponseStatus.ACCOUNT_INCORRECT.getCode(), "商户不存在或未注册");
        }
        assertCustomerEnabled(customer);
        return customer;
    }

    /**
     * 商户手机号：优先 yw_customer.phone，否则匹配联系人 member.phone
     */
    private YwCustomer findCustomerByPhone(String phone) {
        YwCustomer byCustomerPhone = ywCustomerMapper.selectOne(new QueryWrapper<YwCustomer>().lambda()
                .eq(YwCustomer::getIsdeleted, Constants.ZERO)
                .eq(YwCustomer::getPhone, phone)
                .last(" limit 1 "));
        if (byCustomerPhone != null) {
            return byCustomerPhone;
        }
        Member member = memberMapper.selectOne(new QueryWrapper<Member>().lambda()
                .eq(Member::getIsdeleted, Constants.ZERO)
                .eq(Member::getType, Constants.memberType.customer)
                .eq(Member::getPhone, phone)
                .isNotNull(Member::getCustomerId)
                .orderByDesc(Member::getId)
                .last(" limit 1 "));
        if (member == null || member.getCustomerId() == null) {
            return null;
        }
        YwCustomer customer = ywCustomerMapper.selectOne(new QueryWrapper<YwCustomer>().lambda()
                .eq(YwCustomer::getId, member.getCustomerId())
                .eq(YwCustomer::getIsdeleted, Constants.ZERO)
                .last(" limit 1 "));
        if (customer != null) {
            return customer;
        }
        return ywCustomerMapper.selectOne(new QueryWrapper<YwCustomer>().lambda()
                .eq(YwCustomer::getIsdeleted, Constants.ZERO)
                .eq(YwCustomer::getMemberId, member.getId())
                .last(" limit 1 "));
    }

    private YwCustomer requireActiveCustomer(Integer customerId) {
        if (customerId == null) {
            throw new BusinessException(ResponseStatus.DATA_EMPTY);
        }
        YwCustomer customer = ywCustomerMapper.selectById(customerId);
        if (customer == null || Constants.equalsInteger(customer.getIsdeleted(), Constants.ONE)) {
            throw new BusinessException(ResponseStatus.ACCOUNT_INCORRECT.getCode(), "商户不存在或未注册");
        }
        assertCustomerEnabled(customer);
        return customer;
    }

    private void assertCustomerEnabled(YwCustomer customer) {
        if (customer.getStatus() != null && Constants.equalsInteger(customer.getStatus(), Constants.ONE)) {
            throw new BusinessException(ResponseStatus.NO_ALLOW_LOGIN.getCode(), "商户账号已禁用");
        }
    }

    private void bindOpenId(YwCustomer customer, String openid) {
        if (StringUtils.isBlank(openid)) {
            return;
        }
        ywCustomerMapper.update(null, new UpdateWrapper<YwCustomer>().lambda()
                .set(YwCustomer::getOpenid, null)
                .eq(YwCustomer::getOpenid, openid.trim())
                .ne(YwCustomer::getId, customer.getId()));
        customer.setOpenid(openid.trim());
    }

    private void touchLogin(YwCustomer customer) {
        Date now = new Date();
        customer.setLastLoginDate(now);
        customer.setEditDate(now);
        customer.setLoginNum((customer.getLoginNum() == null ? 0 : customer.getLoginNum()) + 1);
        ywCustomerMapper.updateById(customer);
    }

    private LoginUserInfo toLoginUserInfo(YwCustomer customer) {
        LoginUserInfo loginUserInfo = new LoginUserInfo();
        loginUserInfo.setCustomerId(customer.getId());
        loginUserInfo.setId(customer.getId());
        loginUserInfo.setH5UserType(LoginUserInfo.H5_USER_CUSTOMER);
        loginUserInfo.setRealname(customer.getName());
        loginUserInfo.setMobile(resolveLoginMobile(customer));
        loginUserInfo.setUsername("customer_" + customer.getId());
        loginUserInfo.setSource(LoginUserInfo.SOURCE_H5_CUSTOMER);
        loginUserInfo.setRoles(Collections.singletonList("h5_customer"));
        loginUserInfo.setPermissions(Collections.emptyList());
        return loginUserInfo;
    }

    private String resolveLoginMobile(YwCustomer customer) {
        if (StringUtils.isNotBlank(customer.getPhone())) {
            return customer.getPhone();
        }
        if (customer.getMemberId() != null) {
            Member member = memberMapper.selectById(customer.getMemberId());
            if (member != null && StringUtils.isNotBlank(member.getPhone())) {
                return member.getPhone();
            }
        }
        return customer.getPhone();
    }
}