package kcc.com.pdf.service.impl;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;

import javax.annotation.Resource;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

import egovframework.rte.fdl.cmmn.EgovAbstractServiceImpl;
import egovframework.rte.fdl.idgnr.EgovIdGnrService;
import egovframework.rte.fdl.security.userdetails.util.EgovUserDetailsHelper;
import kcc.com.cmm.LoginVO;
import kcc.com.pdf.service.PdfService;
import kcc.com.pdf.service.PdfVO;
import kcc.com.utl.fcc.service.EgovStringUtil;


/*
 * pg관리자페이지에서 해당 옵션 true로 설정
 * 		pg.exec.merge.insertBookmark
 * 
 * validation 
 * 	- 변환 가능 확장자
 * 		- dap, ppt, pptx, pptm, pps, ppsx, xls, xlsx, xlsm, xlsb, doc, docx, docm, dotx, rtf, odt, odp, ods, odg, hwp, hml, hwpx, dwg, dwf, dxf, dgn, url, mht, mhtml, htm, html, jpg, jpe, jpeg, tif, tiff, gif, png, bmp, j2k, psd
 * 
 * 1. 표지pdf 생성 및 베이스로 사용
 * 	- inputUri
 * 2. merge 파일들 추가
 * 	- label 기능을 책갈피 기능으로 대체
 * 	- 
 * 
 * 테이블 설계
 * 	- 사건번호(pk), name(pk), 요청id,상태, 결과 파일 경로
 * 
 * https://fairnet.kofair.or.kr/clip/ClipReport4/ClipReportViewer/ClipReport4PdfDown2.do?CLIPDATA_CASENO=%EA%B0%80%EB%A7%B92025-0003&CLIPDATA_RCEPTNO=20250102-040&CLIPDATA_USERTYPE=&CLIPDATA_SEQNO=&crfNm=reqPrint
 * 
 */



/*
 * ##############################################################pdf 병합##############################################################
 */

/* 
 * step 1
 * 		- caseNo에 따른 rceptNo정보 가져오기
 */

/*
 * step 2
 * 		- caseNo 또는 rceptNo 에 따른 첨부파일 가져오기
 * 		- 변환 가능 확장자
 * 			- dap, ppt, pptx, pptm, pps, ppsx, xls, xlsx, xlsm, xlsb, doc, docx, docm, dotx, rtf, odt, odp, ods, odg, hwp, hml, hwpx, dwg, dwf, dxf, dgn, url, mht, mhtml, htm, html, jpg, jpe, jpeg, tif, tiff, gif, png, bmp, j2k, psd
 * 		- label에 realFileNm 넣기
 * 		! 파일명에 따라 변환이 제대로 되는지 확인
 */

/*
 * step 3
 * 		- 신청서 clipreport 파일 가져오기
 * 		- setHtmlUrlResource 옵션 false로 설정
 */

/*
 * step 4
 * 		- api call
 * 		- db에 responsse data 저장
 */

/*
 * ##############################################################pdf 작업 callback##############################################################
 */

/*
 * step 1
 * 		- callback 받은 데이터 db 저장(상태, 결과파일 경로)
 */
@Service("PdfService")
public class PdfServiceImpl extends EgovAbstractServiceImpl implements PdfService {
	
	@Resource(name = "pdfIdgenService")
    private EgovIdGnrService pdfIdgenService;

    @Resource(name="pdfDAO")
    private PdfDAO pdfDAO;
    
    @Value("#{globalSettings['pdf.filePath']}")
	private String pdfFilePath;
    
    @Value("#{globalSettings['pdf.hostUri']}")
    private String hostUri;
    
    @Value("#{globalSettings['pdf.serverUrl']}")
    private String serverUrl;

    @Override
    public Map<String, String> conversionPdf(
    										String caseNo
    										, String rceptNo
    										) throws Exception {
    	
		//파일 방식
//		PdfVO.SubTask mergeTask = new PdfVO.SubTask();
//		mergeTask.setType("merge");
//		
//		PdfVO.Options options1 = new PdfVO.Options();
//		options1.setMergeSrcUri("file:/Z:/inputFile/2.pdf");
//		PdfVO.Option option1 = new PdfVO.Option();
//		option1.setLabel("2.pdf");
//		options1.getOption().add(option1);
//		mergeTask.getOptions().add(options1);
		
		//html 다운로드 방식
//		PdfVO.Options options4 = new PdfVO.Options();
//		options4.setMergeSrcUri("https://fairnet.kofair.or.kr/clip/ClipReport4/ClipReportViewer/ClipReport4PdfDown2.do?CLIPDATA_CASENO=%EA%B0%80%EB%A7%B92025-0003&CLIPDATA_RCEPTNO=20250102-040&CLIPDATA_USERTYPE=&CLIPDATA_SEQNO=&crfNm=reqPrint");
//		PdfVO.Option option4 = new PdfVO.Option();
//		option4.setLabel("5.html");
//		option4.setHtmlUrlResource(false);
//		options4.getOption().add(option4);
//		mergeTask.getOptions().add(options4);
    	
    	
    	
    	Map<String, String> result = new HashMap<String, String>();
    	
    	try {
    		LocalDateTime today = LocalDateTime.now();
    		DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
    		String day = today.format(formatter);
    		
    		/*
    		 * 조정신청서는 항상 존재하므로 기본 파일로 설정
    		 */
    		PdfVO pdfVO = new PdfVO();
    		pdfVO.setCaseNo(caseNo);
    		
    		//표지
    		pdfVO.setInputUri(hostUri + "/gtm/case/pdfSubjectPop.do?caseNo=" + caseNo);
    		pdfVO.getOption().setHtmlUrlResource(true);
    		pdfVO.getOption().setLabel("표지");
    		
    		//글로벌 변경해야함
    		pdfVO.setOutputUri("file:/Z:/resultFile/" + caseNo + "_"+ day +".pdf");
    		//글로벌 변경해야함
    		pdfVO.setCallbackUri(hostUri + "/gtm/case/pdfCallBack.do");
    		pdfVO.setName(pdfIdgenService.getNextStringId());
    		pdfVO.setExternalId(caseNo);
    		
    		PdfVO.SubTask mergeTask = new PdfVO.SubTask();
    		mergeTask.setType("merge");
    		
    		/*
    		 * 조정신청서는 항상 존재하므로 merge1번파일로 지정
    		 */
    		PdfVO.Options options1 = new PdfVO.Options();
    		options1.setMergeSrcUri(
	    								hostUri + 
	    								"/clip/ClipReport4/ClipReportViewer/ClipReport4PdfDown2.do"
	    								+ "?CLIPDATA_CASENO=" + URLEncoder.encode(caseNo, StandardCharsets.UTF_8.toString())
	    								+ "&CLIPDATA_RCEPTNO=" + URLEncoder.encode(rceptNo, StandardCharsets.UTF_8.toString())
	    								+ "&CLIPDATA_USERTYPE="
	    								+ "&CLIPDATA_SEQNO="
	    								+ "&crfNm=reqPrint"
    								);
    		PdfVO.Option option1 = new PdfVO.Option();
    		option1.setLabel("조정신청서");
    		option1.setHtmlUrlResource(false);
    		options1.getOption().add(option1);
    		mergeTask.getOptions().add(options1);
    		
    		/*
    		 * DB 테이블 조회
    		 */
    		//첨부파일 경로, 원 파일명, 변환가능 확장자 체크
    		
    		//대상 팡리
    		List<PdfVO> processList = extensionCheck(pdfDAO.selectProcessList(pdfVO));
    		
    		//pdf 포함파일 명들
    		StringBuilder fileNames = new StringBuilder("표지"); 
    		
    		processList.stream().forEach(t -> 
    										{
    											PdfVO.Options options = new PdfVO.Options();
    											if(t.getResultFilePath().startsWith("/usr/local/homepage/WEB-INF/views/site/case/upload/uploadFiles/case")) {
    												;
    												options.setMergeSrcUri("file:/Z:" + t.getResultFilePath().substring("/usr/local/homepage/WEB-INF/views/site/case/upload/uploadFiles/case".length()));
    											}else {
    												options.setMergeSrcUri("file:/Z:" + pdfFilePath + t.getResultFilePath());
    											}
    											PdfVO.Option option = new PdfVO.Option();
    								    		option.setLabel(t.getFileName());
    								    		options.getOption().add(option);
    								    		mergeTask.getOptions().add(options);
    								    		
    								    		try {
													fileNames.append("%2C%20%3C%2Fbr%3E" + URLEncoder.encode(t.getFileName(), StandardCharsets.UTF_8.toString()));
												} catch (UnsupportedEncodingException e) {
													e.printStackTrace();
												}
											}
										);
    		
    		/*
    		 * pdf 파일명들
    		 */
    		PdfVO.Options options2 = new PdfVO.Options();
    		options2.setMergeSrcUri(hostUri + "/gtm/case/pdfSubjectPop.do?caseNo=" + fileNames);
    		PdfVO.Option option2 = new PdfVO.Option();
    		option2.setLabel("파일 끝");
    		option2.setHtmlUrlResource(true);
    		options2.getOption().add(option2);
    		mergeTask.getOptions().add(options2);
    		
			pdfVO.getSubtasks().add(mergeTask);
			pdfVO.setSubtask(null);
    		
    		// ObjectMapper를 사용하여 PdfVO 객체를 JSON 문자열로 변환
    		ObjectMapper objectMapper = new ObjectMapper();
    		String body = objectMapper.writeValueAsString(pdfVO);
    		
    		// PDF Gateway REST API 호출
    		HttpResponse<String> response = Unirest.post(serverUrl + "/pdf-gateway/api/job/build")
    				.header("Content-Type", "application/json")
    				.body(body)
    				.asString();
    		
    		System.out.println(response.getBody());
    		
    		String responseBody = response.getBody();
    		Map<String, Object> map = objectMapper.readValue(responseBody, new TypeReference<Map<String, Object>>() {});
    		
    		map.put("caseNo", caseNo);
    		map.put("userId", getUserId());
    		
    		pdfDAO.insertDocCallback(map);
    		
    		result.put("result", "변환 요청되었습니다.");
			
		} catch (Exception e) {
			result.put("fail", "변환 요청이 실패했습니다.");
		}
        
        return result;
    }
    /*
     * ##############################################################pdf 작업 상태 조회##############################################################
     */

    /*
     * step 1
     * 		- 사건번호로 DB조회
     */
    @Override
    public List<PdfVO> selectDocList(
									PdfVO pdfVO
								) throws Exception {
    	return pdfDAO.selectDocList(pdfVO);
    }
    
    @Override
    public void updateDocCallback(Map<String, Object> map) throws Exception{
    	pdfDAO.updateDocCallback(map);
	}
    
    @Override
    public void insertDocCallback(Map<String, Object> map) throws Exception{
    	pdfDAO.insertDocCallback(map);
    }
    
    private List<PdfVO> extensionCheck(List<PdfVO> processList){
    	
    	// 허용된 파일 확장자 목록을 Set으로 정의
        Set<String> allowedExtensions = new HashSet<>(Arrays.asList(
            "dap", "ppt", "pptx", "pptm", "pps", "ppsx", "xls", "xlsx", "xlsm", "xlsb",
            "doc", "docx", "docm", "dotx", "rtf", "odt", "odp", "ods", "odg",
            "hwp", "hml", "hwpx", "dwg", "dwf", "dxf", "dgn",
            "url", "mht", "mhtml", "htm", "html",
            "jpg", "jpe", "jpeg", "tif", "tiff", "gif", "png", "bmp", "j2k", "psd", "pdf"
        ));

        // 파일 확장자가 허용된 목록에 있는지 확인하고 필터링
        return processList.stream()
                          .filter(pdfVO -> {
                              String extension = pdfVO.getFileExtension();
                              return extension != null && allowedExtensions.contains(extension.toLowerCase());
                          })
                          .collect(Collectors.toList());
    }
    
    private String getUserId() {
    	LoginVO loginVO = EgovUserDetailsHelper.isAuthenticated() ? (LoginVO) EgovUserDetailsHelper.getAuthenticatedUser() : null;
		String userId = loginVO == null ? "" : EgovStringUtil.isNullToString(loginVO.getUniqId());
		
		return userId;
    }
}