package com.mzl.flower.service.supplier;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.mzl.flower.base.cache.StringCacheClient;
import com.mzl.flower.config.exception.ValidationException;
import com.mzl.flower.config.security.SecurityUtils;
import com.mzl.flower.constant.Constants;
import com.mzl.flower.dto.request.register.RegisterDTO;
import com.mzl.flower.dto.request.supplier.QuerySupplierSubDTO;
import com.mzl.flower.dto.request.supplier.SupplierSubDTO;
import com.mzl.flower.dto.response.supplier.SupplierDTO;
import com.mzl.flower.dto.response.supplier.SupplierSubVO;
import com.mzl.flower.entity.supplier.SupplierSub;
import com.mzl.flower.entity.system.User;
import com.mzl.flower.mapper.supplier.SupplierMapper;
import com.mzl.flower.mapper.supplier.SupplierSubMapper;
import com.mzl.flower.mapper.system.UserMapper;
import com.mzl.flower.service.BaseService;
import com.mzl.flower.utils.UUIDGenerator;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.BeanUtils;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;

import java.util.ArrayList;
import java.util.List;

@Service
@Transactional
@RequiredArgsConstructor
public class SupplierSubService {

    private final SupplierSubMapper supplierSubMapper;
    private final PasswordEncoder passwordEncoder;
    private final UserMapper userMapper;
    private final BaseService baseService;

    private final StringCacheClient stringCacheClient;

    public static final String SMS_CODE_KEY = "SMS-CODE-KEY";

    public static final String TOKEN_KEY = "TOKEN-KEY";

    public static final String SEPARATOR = ":";

    private final SupplierMapper supplierMapper;


    public void addOrUpdateSupplier(SupplierSubDTO dto) {
        if(StringUtils.isEmpty(dto.getSmsCode())){
            throw new ValidationException("手机验证码为空");
        }
        String smsCode = dto.getSmsCode();
        //从缓存中获取验证码
        String smsCacheCode = stringCacheClient.get(SMS_CODE_KEY + SEPARATOR + Constants.USER_TYPE.supplier.name() + SEPARATOR + dto.getPhone());
        if (!org.apache.commons.lang3.StringUtils.equals(smsCode, smsCacheCode)) {
            throw new ValidationException("手机验证码不正确");
        }

        SupplierSub supplierSub;
        if (dto.getId() == null) {

            SupplierDTO supplierDTO = supplierMapper.getCurrentSupplier(SecurityUtils.getUserId());
            if(ObjectUtils.isEmpty(supplierDTO)){
                throw new ValidationException("供应商信息不存在");
            }
            //检查该供应商下是否有名称一样的子账号
            if (checkExistName(dto.getName(), supplierDTO.getId())) {
                throw new ValidationException("子账号名称已存在");
            }

            //检查手机号
            String userType = Constants.USER_TYPE.supplier.name();
            if (checkUserExist(dto.getPhone(), userType)) {
                throw new ValidationException("该手机号码已经注册");
            }

            supplierSub = new SupplierSub();
            BeanUtils.copyProperties(dto, supplierSub, "id");
            supplierSub.create(SecurityUtils.getUserId());
            supplierSub.setIsEnabled(true);

            //用户信息注册
            RegisterDTO registerDTO = new RegisterDTO();
            registerDTO.setTel(supplierSub.getPhone());
            String uuid = UUIDGenerator.getUUID();
            String password = passwordEncoder.encode(supplierSub.getPassword());
            registerDTO.setPassword(password);
            registerUser(registerDTO, uuid, password);
            supplierSub.setUserId(uuid);
            //保存子账号信息
            supplierSubMapper.insert(supplierSub);
        } else {

            supplierSub = supplierSubMapper.selectById(dto.getId());
            if (supplierSub == null) {
                throw new ValidationException("供应商子信息未登记");
            }

            if (!StringUtils.isEmpty(dto.getName()) && !dto.getName().equals(supplierSub.getName())) {
                if (checkExistName(dto.getName(), supplierSub.getSupplierId())) {
                    throw new ValidationException("子账号名称已存在");
                }
                supplierSub.setName(dto.getName());
            }

            if (!StringUtils.isEmpty(dto.getContact()) && !dto.getContact().equals(supplierSub.getContact())) {
                supplierSub.setContact(dto.getContact());
            }

            if (StringUtils.isEmpty(supplierSub.getUserId())) {
                throw new ValidationException("该账号用户信息未注册");
            }

            User user = userMapper.selectById(supplierSub.getUserId());
            if (!StringUtils.isEmpty(dto.getPhone()) && !dto.getPhone().equals(supplierSub.getPhone())) {
                String userType = Constants.USER_TYPE.supplier.name();
                if (checkUserExist(dto.getPhone(), userType)) {
                    throw new ValidationException("该手机号码已经注册");
                }
                supplierSub.setPhone(dto.getPhone());
            }


            if (!StringUtils.isEmpty(dto.getPassword())) {
                //判断密码是否一致
                if (!ObjectUtils.isEmpty(user)) {
                    String encode = passwordEncoder.encode(dto.getPassword());
                    if (!encode.equals(user.getPassword())) {
                        user.setPassword(encode);
                        userMapper.updateById(user);
                        supplierSub.setPassword(encode);
                    }
                }
            }
            if (!StringUtils.isEmpty(dto.getPhone())) {
                if (!ObjectUtils.isEmpty(user)) {
                    user.setLoginName(dto.getPhone());
                    user.setTel(dto.getPhone());
                    user.setNickName(dto.getPhone());
                    userMapper.updateById(user);
                }
            }
            supplierSub.setIsEnabled(supplierSub.getIsEnabled());
            supplierSub.update(SecurityUtils.getUserId());
            supplierSubMapper.updateById(supplierSub);
        }
    }


    private boolean checkExistName(String name, Long supplierId) {
        if (StringUtils.isEmpty(name)) {
            LambdaQueryWrapper<SupplierSub> lambdaQueryWrapper = new LambdaQueryWrapper();
            lambdaQueryWrapper.eq(SupplierSub::getName, name).eq(SupplierSub::getSupplierId, supplierId);
            return supplierSubMapper.selectCount(lambdaQueryWrapper) > 0;
        }
        return false;
    }


    public Page<SupplierDTO> querySupplier(QuerySupplierSubDTO dto, Page page) {
        List<SupplierSubVO> list = supplierSubMapper.querySupplierSub(dto, page);
        page.setRecords(list);
        return page;
    }


    public void isEnable(Long id) {
        SupplierSub supplierSub = supplierSubMapper.selectById(id);
        if (supplierSub == null) {
            throw new ValidationException("供应商信息不存在");
        }
        if (supplierSub.getIsEnabled()) {
            supplierSub.setIsEnabled(false);
            //强制下线
            baseService.removeToken(supplierSub.getUserId());
        } else {
            supplierSub.setIsEnabled(true);
        }
        supplierSub.update(SecurityUtils.getUserId());
        supplierSubMapper.updateById(supplierSub);
    }


    public void registerUser(RegisterDTO dto, String uuid, String password) {
        User user = new User();
        user.setId(uuid);
        user.setLoginName(dto.getTel());
        user.setTel(dto.getTel());
        user.setNickName(dto.getTel());
        user.setPassword(password);
        user.setType(Constants.USER_TYPE.supplier.name());
        user.setStatus(Constants.STATUS_ACTIVE);
        user.setIsSys(Constants.N);
        user.create();
        userMapper.insert(user);
    }

    //供应商手机号唯一，主子不能用同一个手机号
    private boolean checkUserExist(String tel, String userType) {
        List<String> userTypes = new ArrayList<>();
        userTypes.add(userType);
        User user = userMapper.getActiveUser(tel, userTypes);
        return user != null;
    }

    public void delete(Long id) {
        SupplierSub supplierSub = supplierSubMapper.selectById(id);
        if (!ObjectUtils.isEmpty(supplierSub)) {
            if (!StringUtils.isEmpty(supplierSub.getUserId())) {
                //删除用户表信息
                userMapper.deleteById(supplierSub.getUserId());
            }
            //删除供应商子表信息
            supplierSubMapper.deleteById(id);
        }
    }
}