package com.consum.base.service.impl;

import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.stream.Collectors;

import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;

import com.consum.base.Constants;
import com.consum.base.core.utils.IdUtil;
import com.consum.base.pojo.BaseCategoryParam;
import com.consum.base.pojo.ProjectTreeResult;
import com.consum.base.service.BaseCategoryService;
import com.consum.model.po.BaseCategory;
import com.iplatform.model.po.S_user_core;
import com.walker.db.page.GenericPager;
import com.walker.infrastructure.utils.DateUtils;
import com.walker.infrastructure.utils.StringUtils;
import com.walker.jdbc.service.BaseServiceImpl;

/**
 * @Description 物品分类
 * @Author 卢庆阳
 * @Date 2023/10/23
 */
@Service
public class BaseCategoryServiceImpl extends BaseServiceImpl implements BaseCategoryService {

    private static final String QUERY_TREE_ALL =
        "select * from base_category where states = 1  order by FATHER_CATEGORY_ID, LEVELS ASC";

    /**
     * @Description 新增分类
     * @Author 卢庆阳
     * @Date 2023/10/23
     */
    public int add(BaseCategoryParam param, S_user_core currentUser) {
        BaseCategory baseCategory = new BaseCategory();
        BeanUtils.copyProperties(param, baseCategory);
        baseCategory.setId(IdUtil.generateId());
        // 层级
        if (baseCategory.getFatherCategoryId() == null) {
            // 一级分类
            baseCategory.setFatherCategoryId(0L);
            baseCategory.setLevels(Constants.LEVELS_ONE);
        } else {
            // 根据父类id查询上级分类信息
            BaseCategory category = this.get(new BaseCategory(baseCategory.getFatherCategoryId()));
            if (category.getFatherCategoryId() == 0L) { // 二级分类
                baseCategory.setLevels(Constants.LEVELS_TWO);
            } else { // 三级分类
                baseCategory.setLevels(Constants.LEVELS_THREE);
            }
        }
        // 创建人id和创建人姓名
        baseCategory.setCreateUserId(currentUser.getId());
        baseCategory.setCreateUserName(currentUser.getUser_name());
        // 创建时间
        baseCategory.setCreateTime(DateUtils.getDateTimeNumber(System.currentTimeMillis()));

        return this.insert(baseCategory);
    }

    /**
     * @param categoryName
     * @param fatherCategoryId
     * @Description 根据分类名称和父类id查询分类
     * @Author 卢庆阳
     * @Date 2023/10/23
     */
    public BaseCategory getByCategoryNameAndFatherCategoryId(String categoryName, Long fatherCategoryId) {
        StringBuilder sql = new StringBuilder("SELECT * FROM base_category WHERE 1 = 1 ");
        HashMap<String, Object> paramts = new HashMap<>();

        // 分类名称
        sql.append(" and category_name =:category_name ");
        paramts.put("category_name", categoryName);
        // 父类id
        sql.append(" and father_category_id =:father_category_id ");
        paramts.put("father_category_id", fatherCategoryId);

        return this.get(sql.toString(), paramts, new BaseCategory());
    }

    /**
     * @Description 物品分类列表查询
     * @Author 卢庆阳
     * @Date 2023/10/23
     */
    public GenericPager<BaseCategory> queryBaseCategoryList(BaseCategoryParam param) {
        StringBuilder sql = new StringBuilder("SELECT * FROM base_category WHERE 1 = 1 ");
        HashMap<String, Object> paramts = new HashMap<>();
        // 分类名称
        if (param.getFatherCategoryId() != null) {
            sql.append("and father_category_id =:fatherCategoryId ");
            paramts.put("fatherCategoryId", param.getFatherCategoryId());
        } else {
            sql.append("and levels =1 ");
        }
        // 分类名称
        if (!StringUtils.isEmpty(param.getCategoryName())) {
            sql.append(" and category_name like:category_name ");
            paramts.put("category_name", StringUtils.CHAR_PERCENT + param.getCategoryName() + StringUtils.CHAR_PERCENT);
        }
        // 类别
        if (!StringUtils.isEmpty(param.getClassification())) {
            sql.append(" and classification =:classification ");
            paramts.put("classification", param.getClassification());
        }
        // 状态
        if (param.getStates() != null) {
            sql.append(" and states =:states ");
            paramts.put("states", param.getStates());
        } else {
            sql.append(" and states !=3 ");
        }
        sql.append(" ORDER BY ORDER_NUMBER,CREATE_TIME DESC ");
        return selectSplit(sql.toString(), paramts, new BaseCategory());
    }

    /**
     * @Description 编辑
     * @Author 卢庆阳
     * @Date 2023/10/23
     */
    public int updateBaseCategory(BaseCategory baseCategory) {
        return this.update(baseCategory);
    }

    /**
     * 修改状态
     *
     * @author 卢庆阳
     * @date 2023/9/27
     */
    public int updateStatus(BaseCategory baseCategory) {
        return this.update(baseCategory);
    }

    /**
     * @Description 根据id删除物品分类
     * @Author 卢庆阳
     * @Date 2023/10/23
     */
    public int updateById(BaseCategory baseCategory, S_user_core currentUser) {
        baseCategory.setStates(Constants.STATES_DELETED);
        // 删除时间
        baseCategory.setDTime(DateUtils.getDateTimeNumber(System.currentTimeMillis()));
        // 删除人id和删除人姓名
        baseCategory.setDUserId(currentUser.getId());
        baseCategory.setDUserName(currentUser.getUser_name());
        return this.update(baseCategory);
    }

    /**
     * 根据节点id查询节点详情
     *
     * @author 卢庆阳
     * @Date 2023/10/23
     */
    public BaseCategory getById(Long id) {
        return this.get(new BaseCategory(id));
    }

    /**
     * @Description
     * @Author 卢庆阳
     * @Date 2023/10/30
     */
    public List<BaseCategory> queryForTree() {
        // 展示全部节点
        return this.select(QUERY_TREE_ALL, new Object[] {}, new BaseCategory());
    }

    public List<ProjectTreeResult> tree() {
        BaseCategory categoryParam = new BaseCategory();
        categoryParam.setStates(1);
        // 查出所有分类
        List<BaseCategory> all = select(categoryParam);
        // 组装成父子树形结构
        // 1级分类
        List<ProjectTreeResult> menus = all.stream().filter(entity -> entity.getLevels() == 1).map(entity -> {
            ProjectTreeResult projectTreeResult = new ProjectTreeResult(entity);
            if (getChildren(projectTreeResult, all).isEmpty()) {
                projectTreeResult.setChildren(null);
            } else {
                projectTreeResult.setChildren(getChildren(projectTreeResult, all));
            }
            return projectTreeResult;
        }).sorted(Comparator.comparingInt(menu -> (menu.getSort() == null ? 0 : menu.getSort())))
            .collect(Collectors.toList());
        return menus;

    }

    /**
     * 递归查找所有菜单的子菜单
     */
    private List<ProjectTreeResult> getChildren(ProjectTreeResult root, List<BaseCategory> all) {
        List<ProjectTreeResult> children =
            all.stream().filter(entity -> entity.getFatherCategoryId().equals(root.getId())).map(entity -> {

                ProjectTreeResult projectTreeResult = new ProjectTreeResult(entity);
                // 通过递归找到子分类
                if (getChildren(projectTreeResult, all).isEmpty()) {
                    projectTreeResult.setChildren(null);
                } else {
                    projectTreeResult.setChildren(getChildren(projectTreeResult, all));
                }
                return projectTreeResult;
            }).sorted(Comparator.comparingInt(menu -> (menu.getSort() == null ? 0 : menu.getSort())))
                .collect(Collectors.toList());
        return children;
    }

    /**
     * @return
     * @Description 三级分类列表查询
     * @Author 卢庆阳
     * @Date 2023/10/30
     */
    public List<BaseCategory> queryForLv3Tree() {
        StringBuilder sql = new StringBuilder(
            "SELECT * FROM base_category WHERE states = 1 and levels = 3 order by ORDER_NUMBER,CREATE_TIME desc");
        return this.select(sql.toString(), new Object[] {}, new BaseCategory());
    }

    @Override
    public BaseCategory getByCategoryByName(String categoryName) {
        StringBuilder sql = new StringBuilder("SELECT * FROM base_category WHERE 1 = 1 ");
        HashMap<String, Object> paramts = new HashMap<>();
        // 分类名称
        sql.append(" and category_name =:category_name ");
        paramts.put("category_name", categoryName);
        BaseCategory baseCategory = this.get(sql.toString(), paramts, new BaseCategory());
        return baseCategory;
    }
}