package me.zhengjie.modules.mnt.service.impl;

import me.zhengjie.exception.BadRequestException;
import me.zhengjie.modules.mnt.domain.App;
import me.zhengjie.modules.mnt.repository.AppRepository;
import me.zhengjie.modules.mnt.service.AppService;
import me.zhengjie.modules.mnt.service.dto.AppDto;
import me.zhengjie.modules.mnt.service.dto.AppQueryCriteria;
import me.zhengjie.modules.mnt.service.mapper.AppMapper;
import me.zhengjie.utils.FileUtil;
import me.zhengjie.utils.PageUtil;
import me.zhengjie.utils.QueryHelp;
import me.zhengjie.utils.ValidationUtil;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.*;

/**
* @author zhanghouying
* @date 2019-08-24
*/
@Service
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true, rollbackFor = Exception.class)
public class AppServiceImpl implements AppService {

    private AppRepository appRepository;

    private AppMapper appMapper;

	public AppServiceImpl(AppRepository appRepository, AppMapper appMapper) {
		this.appMapper = appMapper;
		this.appRepository = appRepository;
	}

    @Override
    public Object queryAll(AppQueryCriteria criteria, Pageable pageable){
        Page<App> page = appRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder),pageable);
        return PageUtil.toPage(page.map(appMapper::toDto));
    }

    @Override
    public List<AppDto> queryAll(AppQueryCriteria criteria){
        return appMapper.toDto(appRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder)));
    }

    @Override
    public AppDto findById(Long id) {
		App app = appRepository.findById(id).orElseGet(App::new);
        ValidationUtil.isNull(app.getId(),"App","id",id);
        return appMapper.toDto(app);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public AppDto create(App resources) {
        verification(resources);
        return appMapper.toDto(appRepository.save(resources));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void update(App resources) {
        verification(resources);
        App app = appRepository.findById(resources.getId()).orElseGet(App::new);
        ValidationUtil.isNull(app.getId(),"App","id",resources.getId());
        app.copy(resources);
        appRepository.save(app);
    }

    private void verification(App resources){
        String opt = "/opt";
        String home = "/home";
        if (!(resources.getUploadPath().startsWith(opt) || resources.getUploadPath().startsWith(home))) {
            throw new BadRequestException("文件只能上传在opt目录或者home目录 ");
        }
        if (!(resources.getDeployPath().startsWith(opt) || resources.getDeployPath().startsWith(home))) {
            throw new BadRequestException("文件只能部署在opt目录或者home目录 ");
        }
        if (!(resources.getBackupPath().startsWith(opt) || resources.getBackupPath().startsWith(home))) {
            throw new BadRequestException("文件只能备份在opt目录或者home目录 ");
        }
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void delete(Set<Long> ids) {
        for (Long id : ids) {
            appRepository.deleteById(id);
        }
    }

    @Override
    public void download(List<AppDto> queryAll, HttpServletResponse response) throws IOException {
        List<Map<String, Object>> list = new ArrayList<>();
        for (AppDto appDto : queryAll) {
            Map<String,Object> map = new LinkedHashMap<>();
            map.put("应用名称", appDto.getName());
            map.put("端口", appDto.getPort());
            map.put("上传目录", appDto.getUploadPath());
            map.put("部署目录", appDto.getDeployPath());
            map.put("备份目录", appDto.getBackupPath());
            map.put("启动脚本", appDto.getStartScript());
            map.put("部署脚本", appDto.getDeployScript());
            map.put("创建日期", appDto.getCreateTime());
            list.add(map);
        }
        FileUtil.downloadExcel(list, response);
    }
}
