package com.ruoyi.sales.service.impl;

import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.sales.mapper.CommonFileMapper;
import com.ruoyi.sales.pojo.CommonFile;
import com.ruoyi.sales.service.ICommonFileService;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.UUID;

@Service
@RequiredArgsConstructor
public class CommonFileServiceImpl extends ServiceImpl<CommonFileMapper, CommonFile> implements ICommonFileService {

    private final CommonFileMapper commonFileMapper;

    @Value("${file.upload-dir}")
    private String uploadDir;


    @Override
    public int deleteSalesLedgerByIds(Long[] ids) {
        return commonFileMapper.deleteBatchIds(Arrays.asList(ids));
    }

    @Override
    public CommonFile uploadFile(MultipartFile file, Long id, String type) throws IOException {
        // 1. 生成正式文件ID和路径
        String tempId = UUID.randomUUID().toString();
        Path tempFilePath = Paths.get(uploadDir, tempId + "_" + file.getOriginalFilename());

        // 2. 确保目录存在
        Path parentDir = tempFilePath.getParent();
        if (parentDir != null) {
            Files.createDirectories(parentDir); // 递归创建目录
        }

        // 3. 保存文件到目录
        file.transferTo(tempFilePath.toFile());

        // 4. 保存文件记录
        CommonFile commonFile = new CommonFile();
        commonFile.setCommonId(id);
        commonFile.setName(file.getOriginalFilename());
        commonFile.setUrl(tempFilePath.toString());
        commonFile.setType(type);
        commonFileMapper.insert(commonFile);
        return commonFile;
    }

    @Override
    public int delCommonFileByIds(Long[] ids) {
        return commonFileMapper.deleteBatchIds(Arrays.asList(ids));
    }
}