package org.springblade.mdm.flow.service;

import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.flowable.engine.RuntimeService;
import org.springblade.core.log.exception.ServiceException;
import org.springblade.core.mp.base.BizServiceImpl;
import org.springblade.core.oss.OssTemplate;
import org.springblade.core.oss.model.BladeFile;
import org.springblade.mdm.flow.entity.FlowProgramFile;
import org.springblade.mdm.flow.mapper.FlowProgramFileMapper;
import org.springblade.mdm.flow.vo.ProgramUploadVO;
import org.springblade.mdm.program.entity.NcProgram;
import org.springblade.mdm.program.service.ProcessProgRefService;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.Map;

/**
 * 流程程序处理，包括上传，查询展示
 *
 * @author yangys
 */
@Slf4j
@Service
@AllArgsConstructor
public class FlowProgramFileService extends BizServiceImpl<FlowProgramFileMapper, FlowProgramFile> {
	private final OssTemplate ossTemplate;
	private final RuntimeService runtimeService;
	private final FlowCommonService flowCommonService;
	public void uploadFlowProgramFile(ProgramUploadVO uploadVO) {

		Map<String, Object> vars = runtimeService.getVariables(uploadVO.getProcessInstanceId());
		checkFilenames(uploadVO.getFiles(),flowCommonService.getProgramProperties(uploadVO.getProcessInstanceId()));


		//
		//BladeFile bfile = ossTemplate.putFile(uploadVO.getFile());
		//String link = bfile.getLink();
		//保存profame
		/*
		NcProgram prog = new NcProgram();
		prog.setCode(generageCode());
		prog.setName(file.getOriginalFilename());
		prog.setNcNodeId(uploadVO.getNodeId());
		prog.setOssName(bfile.getName());
		prog.setDrawingNo(uploadVO.getDrawingNo());
		prog.setProcessEdition(uploadVO.getProcessEdition());
		prog.setIsLastEdition(1);

		 */
	}

	public void checkFilenames(MultipartFile[] files,FlowProgramProperties programProperties){
		for (MultipartFile file : files){
			checkFilename(file.getOriginalFilename(),programProperties);
		}
	}

	void checkFilename(String filename,FlowProgramProperties programProperties){
		//程序名称：零件号加工序号，文件名应该以此开头
		String expectedProgramName = programProperties.getDrawingNo()+"-"+programProperties.getProcessNo();
		if(!StringUtils.startsWith(filename,expectedProgramName)){
			throw new ServiceException("程序文件名不合法，应为："+expectedProgramName+"-"+programProperties.getCraftEdition()+"-[段数]-[段号].[文件扩展名]");
		}
	}

	/**
	 * 获取文件内容
	 * @param id
	 * @return
	 */
	public String getFileContent(Long id) {
		String result  ="";

		FlowProgramFile programFile = this.getById(id);
		//if(prog.getIsTextFile()!=null && programFile.getIsTextFile()){
			String fileName = programFile.getOssName();
			try (InputStream inputStream = ossTemplate.statFileStream(fileName)) {
				result = IOUtils.toString(inputStream, StandardCharsets.UTF_8);
			} catch (IOException e) {
				throw new RuntimeException(e);
			}
		//}else{
		//	result = "非文本格式文件";
		//}
		return result;
	}
}