package com.xkrs.service.impl;

import com.xkrs.common.encapsulation.PromptMessageEnum;
import com.xkrs.dao.GlobalConfigurationDao;
import com.xkrs.model.entity.GlobalConfigurationEntity;
import com.xkrs.service.GlobalConfigurationService;
import com.xkrs.utils.LocalNullUtils;
import org.apache.hc.core5.util.TextUtils;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.data.domain.Sort;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import javax.persistence.criteria.Predicate;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.Optional;

import static com.xkrs.common.encapsulation.OutputEncapsulation.outputEncapsulationObject;

@Service
public class GlobalConfigurationServiceImpl implements GlobalConfigurationService {

    private final Locale locale = LocaleContextHolder.getLocale();

    @Resource
    private GlobalConfigurationDao globalConfigurationDao;

    /**
     * 新增全局配置
     */
    @Override
    public String insertGlobalConfiguration(GlobalConfigurationEntity globalConfiguration) {
        final String key = LocalNullUtils.formatNullValue(globalConfiguration.getKey());
        final String value = LocalNullUtils.formatNullValue(globalConfiguration.getValue());
        final String remark = LocalNullUtils.formatNullValue(globalConfiguration.getRemark());
        if (TextUtils.isEmpty(key)) {
            return outputEncapsulationObject(PromptMessageEnum.DATA_WRONG, "key不可为空", locale);
        }
        if (TextUtils.isEmpty(value)) {
            return outputEncapsulationObject(PromptMessageEnum.DATA_WRONG, "value不可为空", locale);
        }
        List<GlobalConfigurationEntity> duplicatedEntityList = globalConfigurationDao.findByKey(key);
        if (duplicatedEntityList != null && duplicatedEntityList.size() > 0) {
            return outputEncapsulationObject(PromptMessageEnum.PROCESS_FAIL, "key已存在", locale);
        }
        GlobalConfigurationEntity globalConfigurationEntity = new GlobalConfigurationEntity();
        globalConfigurationEntity.setKey(key);
        globalConfigurationEntity.setValue(value);
        globalConfigurationEntity.setRemark(remark);
        globalConfigurationDao.save(globalConfigurationEntity);
        return outputEncapsulationObject(PromptMessageEnum.SUCCESS, "新增成功", locale);
    }

    /**
     * 删除全局配置
     */
    @Override
    public String deleteGlobalConfiguration(GlobalConfigurationEntity globalConfiguration) {
        Long id = globalConfiguration.getId();
        if (null == id) {
            return outputEncapsulationObject(PromptMessageEnum.DATA_WRONG, "id不可为空", locale);
        }
        Optional<GlobalConfigurationEntity> targetEntityOptional = globalConfigurationDao.findById(id);
        if (targetEntityOptional.isEmpty()) {
            return outputEncapsulationObject(PromptMessageEnum.PROCESS_FAIL, "id不存在", locale);
        }
        globalConfigurationDao.deleteById(id);
        return outputEncapsulationObject(PromptMessageEnum.SUCCESS, "删除成功", locale);
    }

    /**
     * 修改全局配置
     */
    @Override
    public String updateGlobalConfiguration(GlobalConfigurationEntity globalConfiguration) {
        Long id = globalConfiguration.getId();
        if (null == id) {
            return outputEncapsulationObject(PromptMessageEnum.DATA_WRONG, "id不可为空", locale);
        }
        Optional<GlobalConfigurationEntity> targetEntityOptional = globalConfigurationDao.findById(id);
        if (targetEntityOptional.isEmpty()) {
            return outputEncapsulationObject(PromptMessageEnum.PROCESS_FAIL, "id不存在", locale);
        }
        final String key = LocalNullUtils.formatNullValue(globalConfiguration.getKey());
        final String value = LocalNullUtils.formatNullValue(globalConfiguration.getValue());
        final String remark = LocalNullUtils.formatNullValue(globalConfiguration.getRemark());
        if (TextUtils.isEmpty(key)) {
            return outputEncapsulationObject(PromptMessageEnum.DATA_WRONG, "key不可为空", locale);
        }
        if (TextUtils.isEmpty(value)) {
            return outputEncapsulationObject(PromptMessageEnum.DATA_WRONG, "value不可为空", locale);
        }
        List<GlobalConfigurationEntity> duplicatedEntityList = globalConfigurationDao.findByKey(key);
        if (duplicatedEntityList != null && duplicatedEntityList.size() > 0) {
            return outputEncapsulationObject(PromptMessageEnum.PROCESS_FAIL, "key已存在", locale);
        }
        GlobalConfigurationEntity targetEntity = targetEntityOptional.get();
        targetEntity.setKey(key);
        targetEntity.setValue(value);
        if (!TextUtils.isEmpty(remark)) {
            targetEntity.setRemark(remark);
        }
        globalConfigurationDao.save(targetEntity);
        return outputEncapsulationObject(PromptMessageEnum.SUCCESS, "修改成功", locale);
    }

    /**
     * 查询全局配置
     */
    @Override
    public String queryGlobalConfiguration(GlobalConfigurationEntity globalConfiguration) {
        final Long id = globalConfiguration.getId();
        final String key = globalConfiguration.getKey();
        final String value = globalConfiguration.getValue();
        final String remark = globalConfiguration.getRemark();
        Specification<GlobalConfigurationEntity> specification = (root, criteriaQuery, criteriaBuilder) -> {
            List<Predicate> predicateList = new ArrayList<>();
            if (null != id) {
                predicateList.add(criteriaBuilder.equal(root.get("id").as(Long.class), id));
            }
            if (!TextUtils.isEmpty(key)) {
                predicateList.add(criteriaBuilder.like(root.get("key").as(String.class), "%" + key + "%"));
            }
            if (!TextUtils.isEmpty(value)) {
                predicateList.add(criteriaBuilder.like(root.get("value").as(String.class), "%" + value + "%"));
            }
            if (!TextUtils.isEmpty(remark)) {
                predicateList.add(criteriaBuilder.like(root.get("remark").as(String.class), "%" + remark + "%"));
            }
            Predicate[] predicateArray = new Predicate[predicateList.size()];
            return criteriaBuilder.and(predicateList.toArray(predicateArray));
        };
        List<GlobalConfigurationEntity> globalConfigurationEntityList = globalConfigurationDao.findAll(specification, Sort.by(Sort.Direction.ASC, "id"));
        return outputEncapsulationObject(PromptMessageEnum.SUCCESS, globalConfigurationEntityList, locale);
    }
}