package com.muyu.service.serviceImpl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.muyu.common.core.domain.Result;
import com.muyu.common.core.exception.ServiceException;
import com.muyu.common.core.utils.StringUtils;
import com.muyu.common.security.utils.SecurityUtils;
import com.muyu.domain.EngineMaintenance;
import com.muyu.domain.EngineVersion;
import com.muyu.domain.constants.ConfigCodeConstants;
import com.muyu.domain.constants.RuleOperationConstants;
import com.muyu.domain.model.TestData;
import com.muyu.dynamicLoad.DynamicLoader;
import com.muyu.mapper.EngineVersionMapper;
import com.muyu.req.VersionClassCreateReq;
import com.muyu.resp.EngineConfigScopeResp;
import com.muyu.resp.VersionClassCreateResp;
import com.muyu.service.EngineVersionService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.io.IOException;
import java.lang.reflect.Method;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;

/**
 * @Author：qdm
 * @Package：com.muyu.service.serviceImpl
 * @Project：cloud-etl-engine
 * @name：EngineVersionServiceImpl
 * @Date：2024/8/22 22:17
 */
@Service
public class EngineVersionServiceImpl extends ServiceImpl<EngineVersionMapper, EngineVersion> implements EngineVersionService {

    @Autowired
    EngineVersionMapper engineVersionMapper;

    @Override
    public List<EngineVersion> list(EngineVersion engineConfig) {
        LambdaQueryWrapper<EngineVersion> queryWrapper = new LambdaQueryWrapper<>();

        if (StringUtils.isNotNull(engineConfig.getVersionCode())) {
            queryWrapper.eq(EngineVersion::getVersionCode, engineConfig.getVersionCode());
        }

        if (StringUtils.isNotNull(engineConfig.getRuleContent())) {
            queryWrapper.eq(EngineVersion::getRuleContent, engineConfig.getRuleContent());
        }

        if (StringUtils.isNotNull(engineConfig.getEngineMaintenanceId())) {
            queryWrapper.eq(EngineVersion::getEngineMaintenanceId, engineConfig.getEngineMaintenanceId());
        }

        return list(queryWrapper);
    }


    @Override
    public EngineVersion updateMsg(EngineVersion engineVersion) {
        boolean b = updateById(engineVersion);
        if (b) {
            return null;
        }
        return null;
    }

    @Override
    public Result<EngineVersion> updateVersion(EngineVersion engineVersion) {
        return null;
    }

    @Override
    public List<EngineConfigScopeResp> getScopeList() {
        List<EngineConfigScopeResp> list = new ArrayList<>();
        try {
            int i = 0;
            for (String scope : ConfigCodeConstants.CONFIG_FILE_NAME_ARRAY) {
                if (i == 0) {
                    i++;
                    continue;
                }
                String path = ConfigCodeConstants.BASE_FILE_PATH + scope;
                String code = Files.readString(Paths.get(path));
                String type = ConfigCodeConstants.CONFIG_FILE_TYPE_ARRAY[i++];
                list.add(EngineConfigScopeResp.builder()
                        .type(type)
                        .name(scope)
                        .code(code)
                        .build());
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return list;
    }

    @Override
    public EngineConfigScopeResp getScopeInfoById(Integer id) {
        String scope = ConfigCodeConstants.CONFIG_FILE_NAME_ARRAY[id];
        String type = ConfigCodeConstants.CONFIG_FILE_TYPE_ARRAY[id];
        String path = ConfigCodeConstants.BASE_FILE_PATH + scope;
        String code = null;
        try {
            code = Files.readString(Paths.get(path));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
        return EngineConfigScopeResp.builder()
                .type(type)
                .name(scope)
                .code(code)
                .build();
    }

    @Override
    public Object ruleTest(TestData testData) {
        Object result = null;
        try {
            EngineVersion engineVersion = this.getById(testData.getId());
            String content = engineVersion.getRuleContent().replaceAll("\r\n", "");
            // 对source进行编译生成class文件存放在Map中，这里用bytecode接收
            Map<String, byte[]> bytecode = DynamicLoader.compile(RuleOperationConstants.CLASS_NAME +
                    RuleOperationConstants.FILE_SUFFIX, content);

            // 加载class文件到虚拟机中，然后通过反射执行
            @SuppressWarnings("resource")
            DynamicLoader.MemoryClassLoader classLoader = new DynamicLoader.MemoryClassLoader(
                    bytecode);
            Class<?> clazz = classLoader.loadClass(RuleOperationConstants.CLASS_NAME);

            // 调用ruleTest方法
            Method mainMethod = clazz.getDeclaredMethod("ruleTest", List.class);
            result = mainMethod.invoke(null, testData.getList());
        } catch (Exception e) {
            e.printStackTrace();
            throw new ServiceException("测试失败");
        }
        return result;
    }

    @Override
    public VersionClassCreateResp createVersionClass(VersionClassCreateReq req) {
        String versionClass = "engine_custom" + "_" + req.getEngineCode() + "_" + req.getVersionCode();
        EngineConfigScopeResp scopeResp = this.getScopeInfoById(0);
        String code = scopeResp.getCode().replaceAll("name", versionClass)
                .replaceAll("engineScope", EngineConfigScopeResp.ENGINE[req.getScope()])
                .replaceAll("engineCode", req.getEngineCode());
        return VersionClassCreateResp.builder()
                .versionClass(versionClass)
                .ruleContent(code)
                .build();
    }

    @Override
    public Result<EngineVersion> add(EngineVersion engineVersion) {
        Integer res = engineVersionMapper.add(engineVersion);
        if (res == 1) {
            return Result.success(engineVersion);
        }
        return Result.error();
    }

    @Override
    public List<EngineMaintenance> getByIds(Integer versionId) {
        List<EngineMaintenance> list = engineVersionMapper.getByIds(versionId);
        return list;
    }

    @Override
    public boolean insert(EngineVersion engineVersion) {
        // 默认未激活
        engineVersion.setIsActivate(1);
        //状态默认初始化
        engineVersion.setStatus(1);
        //引擎编号是版本中的引擎编号
        engineVersion.setEngineMaintenanceId(2L);
        //设置版本内容
        engineVersion.setRuleContent("没有");
        //设置版本描述内容
        engineVersion.setDescription("没有");
        //设置用户
        Long userId = SecurityUtils.getUserId();
        //设置创建人信息
        engineVersion.setCreateBy(String.valueOf(userId));
        //创建创建时间
        engineVersion.setCreateTime(new Date());
        if (engineVersionMapper.insert(engineVersion) == 1) {
            return true;
        }
        return false;
    }

    @Override
    public void onEngine(Integer id) {
        engineVersionMapper.onEngine(id);
    }

    @Override
    public void close(Integer id) {
        engineVersionMapper.close(id);
    }
}