package com.se.simu.service;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.io.FileUtil;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.metadata.OrderItem;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.se.simu.config.PropertiesConfig;
import com.se.simu.domain.dto.GeDb;
import com.se.simu.domain.po.DataPo;
import com.se.simu.domain.po.SimuPo;
import com.se.simu.domain.vo.CreateFilesSimuVo;
import com.se.simu.domain.vo.SimuVo;
import com.se.simu.helper.StringHelper;
import com.se.simu.helper.WebHelper;
import com.se.simu.mapper.SimuMapper;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.io.File;
import java.sql.Timestamp;
import java.util.Date;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * SIMU 文件服务
 *
 * @author xingjinshuang@smartearth.cn
 * @date 2024/12/24
 */
@Slf4j
@Service

public class SimuFilesService {

    @Resource
    SimuMapper simuMapper;

    @Resource
    PropertiesConfig config;

    @Resource
    GedbService gedbService;

    @Resource
    UwService uwService;

    @Resource
    ResultService resultService;

    public IPage<SimuPo> get(SimuVo vo) {
        QueryWrapper<SimuPo> wrapper = getPageWrapper(vo);

        Page<SimuPo> page = new Page<>(vo.getPageIndex(), vo.getPageSize());
        page.addOrder(OrderItem.desc("id"));

        IPage<SimuPo> paged = simuMapper.selectPage(page, wrapper);

        return paged;
    }

    private QueryWrapper<SimuPo> getPageWrapper(SimuVo vo) {
        QueryWrapper<SimuPo> wrapper = new QueryWrapper<>();
        if (null != vo.getId()) {
            wrapper.eq("id", vo.getId());
        }
        if (null != vo.getPid()) {
            wrapper.eq("pid", vo.getPid());
        }
        if (null != vo.getNum()) {
            wrapper.eq("num", vo.getNum());
        }
        if (!StringHelper.isEmpty(vo.getName())) {
            wrapper.like("lower(name)", vo.getName().trim().toLowerCase());
        }
        if (!CollUtil.isEmpty(vo.getStatus())) {
            wrapper.in("status", vo.getStatus());
        }

        return wrapper;
    }


    private boolean delDir(String dir) {
        File file = new File(dir);
        if (!file.exists() || !file.isDirectory()) {
            return false;
        }

        return FileUtil.del(dir);
    }


    /**
     * "状态：
     * 0-创建仿真任务，
     * 1-连接GEDB库，
     * 2-下载空间数据，
     * 3-下载高程数据，
     * 4-生成降雨文件，
     * 5-生成配置文件，
     * 6-模拟内涝仿真，
     * 7-处理水位文件，
     * 8-处理排水文件，
     * 9-处理仿真结果，
     * 10-完成，-10-出错
     *
     * @param vo VO
     * @return boolean
     */
    public boolean createByfiles(CreateFilesSimuVo vo,String token) {
        Date now = new Date();
        String date = StringHelper.YMDHMS2_FORMAT.format(now);
        if (StringHelper.isEmpty(vo.getName())) {
            vo.setName(date);
        }
        DataPo data = BeanUtil.copyProperties(vo, DataPo.class);
        data.setPath(date, date);
        initPath(data);
        SimuPo simu = new SimuPo(vo.getNum(), vo.getPid(), vo.getName(), JSONUtil.toJsonStr(data), 0, vo.getBak());
        simu.setServiceName(date);
        simu.setCreateTime(new Timestamp(now.getTime()));
        simu.setSemUrl(vo.getSemUrl());
        simu.setPointUrl(vo.getPointName());
        simu.setLinkUrl(vo.getLinkName());
        int rows = simuMapper.insert(simu);
        if (rows > 0) {
            asyncCall(simu,token);
        }

        return rows > 0;
    }

    private void initPath(DataPo data) {
        createDir(config.getInPath() + File.separator + data.getInPath());
        createDir(config.getOutPath() + File.separator + data.getOutPath());
    }

    private void createDir(String path) {
        File f = new File(path);
        if (f.exists() && f.isDirectory()) {
            FileUtil.del(f);
        }
        f.mkdirs();
    }

    private void asyncCall(SimuPo simu,String token) {
        ExecutorService executor = Executors.newSingleThreadExecutor();
        executor.execute(new Runnable() {
            @Override
            @SneakyThrows
            public void run() {
                cope(simu,token);
            }
        });
        executor.shutdown();
    }


    /**
     * "状态：
     * 0-创建仿真任务，
     * 1-连接GEDB库，
     * 2-下载空间数据，
     * 3-下载高程数据，
     * 4-生成降雨文件，
     * 5-生成配置文件，
     * 6-模拟内涝仿真，
     * 7-处理水位文件，
     * 8-处理排水文件，
     * 9-处理仿真结果，
     * 10-完成，-10-出错
     *
     * @param simu 模拟
     */

    private void cope(SimuPo simu,String token) {
        try {
            DataPo data = JSONUtil.toBean(simu.getData(), DataPo.class);

            update(simu, 1, null);
            GeDb db = gedbService.connectGedb(token, data);
            simu.setData(JSONUtil.toJsonStr(data));

            update(simu, 2, null);
            gedbService.copeVectors(token, data, db);

            update(simu, 3, null);
            gedbService.copeDem(token, data);

            update(simu, 4, null);
            uwService.createRainFile(data);

            update(simu, 5, null);
            uwService.createConfig(data);

            update(simu, 6, null);
            uwService.callExe(data);

            update(simu, 7, null);
            //uwService.copeWaterFiles();

            update(simu, 8, null);
            uwService.copeDrainFiles(data);

            update(simu, 9, null);
            resultService.process(data);

            update(simu, 10, "完成");
        } catch (Exception ex) {
            log.error(ex.getMessage(), ex);
            update(simu, -simu.getStatus(), ex.getMessage());
        }
    }

    private void update(SimuPo simu, int status, String rs) {
        simu.setStatus(status);
        if (null != rs) simu.setResult(rs);
        simu.setUpdateTime(WebHelper.getCurrentTimestamp());

        simuMapper.updateById(simu);
    }
}