package com.xcong.farmer.cms.modules.system.service.Impl;

import cn.hutool.core.collection.CollUtil;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xcong.farmer.cms.common.contants.AppContants;
import com.xcong.farmer.cms.common.response.Result;
import com.xcong.farmer.cms.conversion.ColumnConversion;
import com.xcong.farmer.cms.modules.system.dto.AdminAddColumnDto;
import com.xcong.farmer.cms.modules.system.dto.AdminColumnDto;
import com.xcong.farmer.cms.modules.system.dto.AdminDeleteDto;
import com.xcong.farmer.cms.modules.system.dto.AdminUpdateColumnDto;
import com.xcong.farmer.cms.modules.system.entity.*;
import com.xcong.farmer.cms.modules.system.mapper.ArticleMapper;
import com.xcong.farmer.cms.modules.system.mapper.ColumnMapper;
import com.xcong.farmer.cms.modules.system.mapper.CompanyMapper;
import com.xcong.farmer.cms.modules.system.service.IColumnService;
import com.xcong.farmer.cms.modules.system.util.LoginUserUtil;
import com.xcong.farmer.cms.modules.system.vo.AdminColumnVo;
import com.xcong.farmer.cms.modules.system.vo.AdminSeeColumnInfoVo;
import com.xcong.farmer.cms.modules.system.vo.WebColumnVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import cn.hutool.core.util.StrUtil;
import cn.hutool.core.util.ObjectUtil;
import org.springframework.transaction.annotation.Transactional;

import javax.servlet.http.HttpServletRequest;
import java.util.ArrayList;
import java.util.List;

@Service
@Slf4j
public class ColumnServiceImpl extends ServiceImpl<ColumnMapper, ColumnEntity> implements IColumnService {

    @Autowired
    private ArticleMapper articleMapper;
    @Autowired
    private CompanyMapper companyMapper;

    @Override
    public Result getColumnInPage(AdminColumnDto adminColumnDto) {
        UserEntity userlogin = LoginUserUtil.getLoginUser();
        long companyId = userlogin.getCompanyId() == null ? UserEntity.USER_BELONG_TOP : userlogin.getCompanyId();
        Page<AdminColumnVo> page = new Page<>(adminColumnDto.getPageNum(), adminColumnDto.getPageSize());
        ColumnEntity columnEntity = new ColumnEntity();
        columnEntity.setCompanyId(companyId);
        columnEntity.setParentId(ColumnEntity.PARENTID_DEFAULT);
        IPage<AdminColumnVo> list = this.baseMapper.selectAdminColumnVoInPage(page,columnEntity);
        List<AdminColumnVo> records = list.getRecords();
        if(CollUtil.isNotEmpty(records)){
            for(AdminColumnVo adminColumnVo : records){
                Long id = adminColumnVo.getId();
                QueryWrapper<ColumnEntity> objectQueryWrapper = new QueryWrapper<>();
                objectQueryWrapper.eq("parent_id",id);
                objectQueryWrapper.eq("company_id",companyId);
                List<ColumnEntity> columnEntities = this.baseMapper.selectList(objectQueryWrapper);
                List<AdminColumnVo> adminColumnVoChilds = new ArrayList<>();
                if(CollUtil.isNotEmpty(columnEntities)){
                    for(ColumnEntity columnEntityChild : columnEntities){
                        AdminColumnVo child = new AdminColumnVo();
                        child.setId(columnEntityChild.getId());
                        child.setColumnName(columnEntityChild.getColumnName());
                        child.setColumnCode(columnEntityChild.getColumnCode());
                        child.setRemark(columnEntityChild.getRemark());
                        child.setPic(columnEntityChild.getPic());
                        child.setOrderNum(columnEntityChild.getOrderNum());
                        adminColumnVoChilds.add(child);
                    }
                }
                adminColumnVo.setChild(adminColumnVoChilds);
            }
        }
        return Result.ok(list);
    }

    @Override
    @Transactional
    public Result addColumn(AdminAddColumnDto adminAddColumnDto) {
        UserEntity userlogin = LoginUserUtil.getLoginUser();
        long companyId = userlogin.getCompanyId() == null ? UserEntity.USER_BELONG_TOP : userlogin.getCompanyId();
        ColumnEntity columnEntity = new ColumnEntity();
        columnEntity.setCompanyId(companyId);
        String columnName = adminAddColumnDto.getColumnName();
        columnEntity.setColumnName(columnName);
        String columnCode = adminAddColumnDto.getColumnCode();
        QueryWrapper<ColumnEntity> objectQueryWrapper = new QueryWrapper<>();
        objectQueryWrapper.eq("column_code",columnCode);
        if(UserEntity.USER_BELONG_TOP != companyId){
            objectQueryWrapper.eq("company_id",companyId);
        }
        List<ColumnEntity> columnEntities = this.baseMapper.selectList(objectQueryWrapper);
        if(CollUtil.isNotEmpty(columnEntities)){
            return Result.fail("栏目编码不能重复");
        }
        columnEntity.setColumnCode(columnCode);
        String remark = adminAddColumnDto.getRemark();
            columnEntity.setRemark(remark);
        String pic = adminAddColumnDto.getPic();
            columnEntity.setPic(pic);
        Integer orderNum = adminAddColumnDto.getOrderNum();
        if(ObjectUtil.isNotEmpty(orderNum)){
            columnEntity.setOrderNum(orderNum);
        }
        Long parentId = adminAddColumnDto.getParentId();
        if(ObjectUtil.isEmpty(parentId)){
            columnEntity.setParentId(ColumnEntity.PARENTID_DEFAULT);
            columnEntity.setPath("/" + columnEntity.getColumnCode());
        }else{
            columnEntity.setParentId(parentId);
            ColumnEntity parent = this.baseMapper.selectById(parentId);
            columnEntity.setPath(parent.getPath() + "/" + columnEntity.getColumnCode());
        }

        columnEntity.setListTemplate(adminAddColumnDto.getListTemplate());
        columnEntity.setArticleTemplate(adminAddColumnDto.getArticleTemplate());
        columnEntity.setType(adminAddColumnDto.getType());
        columnEntity.setTargetType(adminAddColumnDto.getTargetType());
        columnEntity.setTargetUrl(adminAddColumnDto.getTargetUrl());
        columnEntity.setIsNav(adminAddColumnDto.getIsNav());
        columnEntity.setContentType(adminAddColumnDto.getContentType());
        this.baseMapper.insert(columnEntity);
        return Result.ok("添加成功", columnEntity.getId());
    }

    @Override
    @Transactional
    public Result deleteColumn(Long id) {
        ColumnEntity columnEntity = this.baseMapper.selectById(id);
        if(ObjectUtil.isEmpty(columnEntity)){
            return Result.fail("栏目不存在");
        }
        QueryWrapper<ColumnEntity> objectQueryWrapper = new QueryWrapper<>();
        objectQueryWrapper.eq("parent_id",id);
        List<ColumnEntity> columnEntities = this.baseMapper.selectList(objectQueryWrapper);
        if(CollUtil.isNotEmpty(columnEntities)){
            return Result.fail("请先清空它的二级栏目");
        }
        this.baseMapper.deleteById(id);
        return Result.ok("删除成功");
    }

    @Override
    public Result seeColumnInfo(Long id) {
        ColumnEntity columnEntity = this.baseMapper.selectById(id);
        if(ObjectUtil.isEmpty(columnEntity)){
            return Result.fail("栏目不存在");
        }
        AdminSeeColumnInfoVo adminSeeColumnInfoVo = new AdminSeeColumnInfoVo();
        adminSeeColumnInfoVo.setId(columnEntity.getId());
        adminSeeColumnInfoVo.setColumnName(columnEntity.getColumnName());
        adminSeeColumnInfoVo.setColumnCode(columnEntity.getColumnCode());
        adminSeeColumnInfoVo.setRemark(columnEntity.getRemark());
        adminSeeColumnInfoVo.setParentId(columnEntity.getParentId());
        adminSeeColumnInfoVo.setOrderNum(columnEntity.getOrderNum());
        adminSeeColumnInfoVo.setPic(columnEntity.getPic());
        adminSeeColumnInfoVo.setListTemplate(columnEntity.getListTemplate());
        adminSeeColumnInfoVo.setArticleTemplate(columnEntity.getArticleTemplate());
        adminSeeColumnInfoVo.setIsNav(columnEntity.getIsNav());
        adminSeeColumnInfoVo.setType(columnEntity.getType());
        adminSeeColumnInfoVo.setTargetType(columnEntity.getTargetType());
        adminSeeColumnInfoVo.setContentType(columnEntity.getContentType());

        CompanyEntity companyEntity = companyMapper.selectById(LoginUserUtil.getCompanyId());

        if (columnEntity.getType() == 2) {
            if (columnEntity.getTargetType() == 1) {
                ArticleEntity articleEntity = articleMapper.selectById(Long.parseLong(columnEntity.getTargetUrl()));
                adminSeeColumnInfoVo.setTargetName(articleEntity.getTitle());
                adminSeeColumnInfoVo.setUrl(companyEntity.getWebAddress() + columnEntity.getPath() + "/" + columnEntity.getTargetUrl() + ".html");
            } else if (columnEntity.getTargetType() == 2) {
                ColumnEntity column = this.baseMapper.selectByCodeAndCompanyId(columnEntity.getTargetUrl(), LoginUserUtil.getCompanyId());
                adminSeeColumnInfoVo.setTargetName(column.getColumnName());
                adminSeeColumnInfoVo.setUrl(companyEntity.getWebAddress() + column.getPath());
            }
        } else {
            adminSeeColumnInfoVo.setUrl(companyEntity.getWebAddress() + columnEntity.getPath());
        }
        adminSeeColumnInfoVo.setTargetUrl(columnEntity.getTargetUrl());
        return Result.ok(adminSeeColumnInfoVo);
    }

    @Override
    @Transactional
    public Result updateColumn(AdminUpdateColumnDto adminUpdateColumnDto) {
        Long companyId = LoginUserUtil.getCompanyId();
        ColumnEntity columnEntity = this.baseMapper.selectById(adminUpdateColumnDto.getId());
        if(ObjectUtil.isEmpty(columnEntity)){
            return Result.fail("栏目不存在");
        }

        String columnCode = adminUpdateColumnDto.getColumnCode();
        ColumnEntity updateEntity = ColumnConversion.INSTANCE.updateDtoToEntity(adminUpdateColumnDto);

        ColumnEntity hasExist = this.baseMapper.selectByCodeAndCompanyId(columnCode, companyId);
        if(ObjectUtil.isNotEmpty(hasExist)){
            return Result.fail("栏目编码不能重复");
        }

        Long parentId = adminUpdateColumnDto.getParentId();
        if(ObjectUtil.isEmpty(parentId)){
            updateEntity.setParentId(ColumnEntity.PARENTID_DEFAULT);
            updateEntity.setPath("/" + updateEntity.getColumnCode());
        }else{
            updateEntity.setParentId(parentId);
            ColumnEntity parent = this.baseMapper.selectById(parentId);
            updateEntity.setPath(parent.getPath() + "/" + updateEntity.getColumnCode());
        }

        // 若编码进行了修改且该栏目为父栏目，则需要同步修改子栏目的path。
        if (!columnEntity.getColumnCode().equals(columnCode) && "-1".equals(columnEntity.getColumnCode())) {
            updateEntity.setBeforeColumnCode(columnCode);

            if (adminUpdateColumnDto.getParentId() == 0L) {
                List<ColumnEntity> childColumn = this.baseMapper.selectColumnByParentId(columnEntity.getId(), companyId, 2);
                if (CollUtil.isNotEmpty(childColumn)) {
                    for (ColumnEntity child : childColumn) {
                        child.setPath(updateEntity.getPath() + "/" + child.getColumnCode());
                        this.baseMapper.updateById(child);
                    }
                }
            }
        }

        // 栏目修改时，需判断父级ID及栏目编码的修改。若栏目父级ID修改了，则需记录原父级ID，在发布时，需连同原父级栏目同时编译
        if (!parentId.equals(columnEntity.getParentId()) && columnEntity.getBeforeParentId() == -1) {
            updateEntity.setBeforeParentId(columnEntity.getParentId());
        }

        this.baseMapper.updateById(updateEntity);
        return Result.ok("更新成功");
    }

    @Override
    public Result getColumnInList() {
        UserEntity userlogin = LoginUserUtil.getLoginUser();
        long companyId = userlogin.getCompanyId() == null ? UserEntity.USER_BELONG_TOP : userlogin.getCompanyId();
        List<AdminColumnVo> records = this.baseMapper.selectColumnInListByParentId(ColumnEntity.PARENTID_DEFAULT,companyId);
        if(CollUtil.isNotEmpty(records)){
            for(AdminColumnVo adminColumnVo : records){
                Long id = adminColumnVo.getId();
                QueryWrapper<ColumnEntity> objectQueryWrapper = new QueryWrapper<>();
                objectQueryWrapper.eq("parent_id",id);
                objectQueryWrapper.eq("company_id",companyId);
                List<ColumnEntity> columnEntities = this.baseMapper.selectList(objectQueryWrapper);
                List<AdminColumnVo> adminColumnVoChilds = new ArrayList<>();
                if(CollUtil.isNotEmpty(columnEntities)){
                    for(ColumnEntity columnEntityChild : columnEntities){
                        AdminColumnVo child = new AdminColumnVo();
                        child.setId(columnEntityChild.getId());
                        child.setColumnName(columnEntityChild.getColumnName());
                        child.setColumnCode(columnEntityChild.getColumnCode());
                        child.setRemark(columnEntityChild.getRemark());
                        child.setPic(columnEntityChild.getPic());
                        child.setOrderNum(columnEntityChild.getOrderNum());
                        child.setContentType(columnEntityChild.getContentType());
                        adminColumnVoChilds.add(child);
                    }
                }
                adminColumnVo.setChild(adminColumnVoChilds);
            }
        }
        return Result.ok(records);
    }

    @Override
    public Result delObjs(AdminDeleteDto adminDeleteDto) {
        String ids = adminDeleteDto.getIds();
        if(StrUtil.isNotEmpty(ids)){
            String[] columnIds = ids.split(StringPool.COMMA);
            for(String columnIdStr : columnIds){
                Long columnId = Long.valueOf(columnIdStr);
                QueryWrapper<ColumnEntity> objectQueryWrapper = new QueryWrapper<>();
                objectQueryWrapper.eq("parent_id",columnId);
                this.baseMapper.delete(objectQueryWrapper);

                this.baseMapper.deleteById(columnId);
            }
        }
        return Result.ok("删除成功");
    }

    @Override
    public Result getWebColumnInList(HttpServletRequest request) {
        String website = request.getHeader(AppContants.WEBSITE_HEADER);
        Long companyId = getCompanyIdFromWebsite(website);
        List<WebColumnVo> records = this.baseMapper.selectWebColumnInListByParentId(ColumnEntity.PARENTID_DEFAULT,companyId);
        if(CollUtil.isNotEmpty(records)){
            for(WebColumnVo webColumnVo : records){
                Long id = webColumnVo.getId();
                QueryWrapper<ColumnEntity> objectQueryWrapper = new QueryWrapper<>();
                objectQueryWrapper.eq("parent_id",id);
                objectQueryWrapper.eq("company_id",companyId);
                List<ColumnEntity> columnEntities = this.baseMapper.selectList(objectQueryWrapper);
                List<WebColumnVo> adminColumnVoChilds = new ArrayList<>();
                if(CollUtil.isNotEmpty(columnEntities)){
                    for(ColumnEntity columnEntityChild : columnEntities){
                        WebColumnVo child = new WebColumnVo();
                        child.setId(columnEntityChild.getId());
                        child.setColumnName(columnEntityChild.getColumnName());
                        child.setColumnCode(columnEntityChild.getColumnCode());
                        adminColumnVoChilds.add(child);
                    }
                }
                webColumnVo.setChild(adminColumnVoChilds);
            }
        }
        return Result.ok(records);
    }

    private Long getCompanyIdFromWebsite(String website){
        List<CompanyEntity> companyEntities = companyMapper.selectList(new QueryWrapper<>());
        Long companyId = 0L;
        if(CollUtil.isNotEmpty(companyEntities)){
            for(CompanyEntity companyEntity : companyEntities){
                boolean contains = StrUtil.contains(companyEntity.getWebAddress(), website);
                if(contains){
                    companyId = companyEntity.getId();
                }
            }
        }
        return companyId;
    }
}