package com.ruoyi.approve.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.approve.mapper.ApproveProcessMapper;
import com.ruoyi.approve.pojo.ApproveNode;
import com.ruoyi.approve.pojo.ApproveProcess;
import com.ruoyi.approve.service.IApproveNodeService;
import com.ruoyi.approve.service.IApproveProcessService;
import com.ruoyi.approve.utils.DailyRedisCounter;
import com.ruoyi.approve.vo.ApproveGetAndUpdateVo;
import com.ruoyi.approve.vo.ApproveProcessVO;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.project.system.domain.SysDept;
import com.ruoyi.project.system.domain.SysUser;
import com.ruoyi.project.system.mapper.SysDeptMapper;
import com.ruoyi.project.system.mapper.SysUserMapper;
import lombok.AllArgsConstructor;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Lazy;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.stream.Collectors;

@Service
@RequiredArgsConstructor
public class ApproveProcessServiceImpl extends ServiceImpl<ApproveProcessMapper, ApproveProcess> implements IApproveProcessService {
    private static final DateTimeFormatter DATE_FORMAT = DateTimeFormatter.ofPattern("yyyyMMdd");

    private final StringRedisTemplate redisTemplate;

    private final DailyRedisCounter dailyRedisCounter;

    private final SysDeptMapper sysDeptMapper;
    private final IApproveNodeService approveNodeService;
    private final SysUserMapper sysUserMapper;
    private final ApproveProcessMapper approveProcessMapper;

    @Override
    public void addApprove(ApproveProcessVO approveProcessVO) throws ParseException {
        SysUser sysUser = sysUserMapper.selectUserById(approveProcessVO.getApproveUser());
        SysDept sysDept = sysDeptMapper.selectDeptById(approveProcessVO.getApproveDeptId());
        String[] split = approveProcessVO.getApproveUserIds().split(",");
        List<Long> longList = Arrays.stream(split)
                .map(Long::valueOf)  // 将每个 String 转换为 Long
                .collect(Collectors.toList());
        List<SysUser> sysUsers = sysUserMapper.selectUserByIds(longList);
        if(CollectionUtils.isEmpty(sysUsers)) throw new RuntimeException("审核用户不存在");
        if(sysDept == null) throw new RuntimeException("部门不存在");
        if(sysUser == null) throw new RuntimeException("申请人不存在");
        String today = LocalDate.now().format(DATE_FORMAT);
        Long approveId = dailyRedisCounter.incrementAndGetByDb();
        String formattedCount = String.format("%03d", approveId);
        //流程 ID
        String approveID = today + formattedCount;
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        ApproveProcess approveProcess = new ApproveProcess();
        approveProcess.setApproveId(approveID);
        approveProcess.setApproveUser(approveProcessVO.getApproveUser());
        approveProcess.setApproveUserName(sysUser.getNickName());
        approveProcess.setApproveDeptId(approveProcessVO.getApproveDeptId());
        approveProcess.setApproveDeptName(sysDept.getDeptName());
        approveProcess.setApproveUserNames(sysUsers.stream().map(SysUser::getNickName).collect(Collectors.joining(",")));
        approveProcess.setApproveTime(StringUtils.isEmpty(approveProcessVO.getApproveTime()) ? null : dateFormat.parse(approveProcessVO.getApproveTime()));
        approveProcess.setApproveReason(approveProcessVO.getApproveReason());
        approveProcess.setApproveOverTime(null);
        approveProcess.setApproveStatus(0);
        approveProcess.setApproveDelete(0);
        approveProcess.setCreateTime(LocalDateTime.now());
        approveProcess.setTenantId(approveProcessVO.getApproveDeptId());
        approveProcess.setApproveUserIds(approveProcessVO.getApproveUserIds());
        approveProcess.setApproveUserCurrentId(longList.get(0));
        approveProcess.setApproveUserCurrentName(sysUsers
                .stream()
                .filter(SysUser -> SysUser.getUserId().equals(longList.get(0)))
                .collect(Collectors.toList())
                .get(0)
                .getNickName());
        save(approveProcess);
        //初始化审批节点
        approveNodeService.initApproveNodes(approveProcessVO.getApproveUserIds(),approveID,approveProcessVO.getApproveDeptId());
    }

    @Override
    public List<SysDept> selectDeptListByDeptIds(Long[] deptIds) {
        List<SysDept> sysDeptList =new ArrayList<SysDept>();
        for (Long deptId : deptIds) {
            SysDept sysDept = sysDeptMapper.selectDeptById(deptId);
            sysDeptList.add(sysDept);
        }
        return sysDeptList;
    }

    @Override
    public IPage<ApproveProcess> listAll(Page page,ApproveProcess approveProcess) {
        IPage<ApproveProcess> approveProcessIPage = approveProcessMapper.listPage(page,approveProcess);
        return approveProcessIPage;
    }

    @Override
    public void delApprove(Long[] ids) {
        for (Long id : ids) {
            UpdateWrapper<ApproveProcess> queryWrapper = new UpdateWrapper<>();
            queryWrapper.lambda().set(ApproveProcess::getApproveDelete, 1)
                    .eq(ApproveProcess::getApproveId, id);
            update(queryWrapper);
            // 删除关联的审批节点
            approveNodeService.delApproveNodeByApproveId(id);
        }


    }

    @Override
    public ApproveProcess getApproveById(String id) {
        LambdaQueryWrapper<ApproveProcess> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(ApproveProcess::getApproveId, id);
        queryWrapper.eq(ApproveProcess::getApproveDelete, 0);
        queryWrapper.eq(ApproveProcess::getTenantId, SecurityUtils.getLoginUser().getTenantId());
        queryWrapper.last("limit 1");
        ApproveProcess one = getOne(queryWrapper);
        return one;
    }

    @Override
    public void updateApproveProcessStatus(ApproveNode approveNode,Integer status) {
        LambdaQueryWrapper<ApproveProcess> approveProcessLambdaQueryWrapper = new LambdaQueryWrapper<>();
        approveProcessLambdaQueryWrapper.eq(ApproveProcess::getApproveId, approveNode.getApproveProcessId())
                .eq(ApproveProcess::getApproveDelete, 0)
                .eq(ApproveProcess::getTenantId, SecurityUtils.getLoginUser().getTenantId())
                .last("limit 1");
        ApproveProcess approveProcess = approveProcessMapper.selectOne(approveProcessLambdaQueryWrapper);
        if(approveProcess == null) throw new RuntimeException("审批不存在");
        approveProcess.setApproveStatus(status);
        updateById(approveProcess);
    }

    @Override
    public void updateByApproveId(ApproveGetAndUpdateVo approveGetAndUpdateVo) {
        ApproveProcess approve = getApproveById(approveGetAndUpdateVo.getId());
        approve.setApproveReason(approveGetAndUpdateVo.getApproveReason());
        updateById(approve);
    }


}