package com.simuwang;

import cn.hutool.core.collection.ListUtil;
import cn.hutool.core.date.DateUtil;
import com.itextpdf.text.Image;
import com.itextpdf.text.pdf.PdfCopy;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfWriter;
import com.simuwang.base.common.conts.DateConst;
import com.simuwang.base.pojo.dto.MailboxInfoDTO;
import com.simuwang.daq.service.EmailParseApiService;
import com.simuwang.daq.service.EmailParseService;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.pdmodel.*;
import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
import org.apache.pdfbox.rendering.ImageType;
import org.apache.pdfbox.rendering.PDFRenderer;
import org.jasypt.util.text.BasicTextEncryptor;
import org.apache.pdfbox.Loader;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import com.itextpdf.text.*;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.*;
import java.util.List;


@SpringBootTest(classes = Application.class)
public class ApplicationTest {

    @Autowired
    private EmailParseService emailParseService;

    @Autowired
    private EmailParseApiService emailParseApiService;

    @Test
    public void test() {
        MailboxInfoDTO emailInfoDTO = this.buildMailbox("", "");
//
//        emailInfoDTO.setAccount("jjpj_test");
//        emailInfoDTO.setPassword("shzq#919");
//        emailInfoDTO.setHost("mail.shzq.com");
//        emailInfoDTO.setPort("993");
//        emailInfoDTO.setProtocol("imap");

        Date startDate = DateUtil.parse("2024-10-10 15:00:00", DateConst.YYYY_MM_DD_HH_MM_SS);
        Date endDate = DateUtil.parse("2024-10-10 16:40:00", DateConst.YYYY_MM_DD_HH_MM_SS);
        try {
            emailParseService.parseEmail(emailInfoDTO, startDate, endDate);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    @Test
    public void reportTest() {
        MailboxInfoDTO emailInfoDTO = this.buildMailbox("x", "x");
        Date startDate = DateUtil.parse("2024-10-15 15:10:30", DateConst.YYYY_MM_DD_HH_MM_SS);
        Date endDate = DateUtil.parse("2024-10-15 17:50:30", DateConst.YYYY_MM_DD_HH_MM_SS);
        try {
            emailParseService.parseEmail(emailInfoDTO, startDate, endDate);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    @Test
    public void testReparseEmail() {
        emailParseApiService.reparseEmail(593);
    }

    @Test
    public void testReparseFile() {
        emailParseApiService.reparseFile(ListUtil.toList(40, 43));
    }

    @Test
    public void testDateFormat() {
        String input = "Smppw@2024";
        BasicTextEncryptor textEncryptor = new BasicTextEncryptor();
        textEncryptor.setPassword("qwertyuiopasdfghjklzxcvbnm1234567890qwertyuiopasdfghjklzxcvbnm12"); // 用您自己的密钥替换"yourSecretKey"
        String encryptedString = textEncryptor.encrypt(input);
        String decrypt = textEncryptor.decrypt(encryptedString);
        System.out.println("加密后的字符串为: " + encryptedString);
        System.out.println("解密后的字符串为: " + decrypt);
    }

    private MailboxInfoDTO buildMailbox(String account, String pwd) {
        MailboxInfoDTO emailInfoDTO = new MailboxInfoDTO();
        emailInfoDTO.setUserId(1);
        emailInfoDTO.setAccount(account);
        emailInfoDTO.setPassword(pwd);
        emailInfoDTO.setHost("imap.exmail.qq.com");
        emailInfoDTO.setPort("993");
        emailInfoDTO.setProtocol("imap");
        return emailInfoDTO;
    }

    @Test
    public void testPdfRemoveWatermark() {
        pdfRemoveWatermark("D:/pdf/东华期货奔牛1号7.29-8.2基金净值表.pdf");
    }

    public void pdfRemoveWatermark(String filePath) {
        try {
            //PDF转图片
            pdfToImage(filePath);
            List<String> fileNames = getFileNames("D:/pdf/pdfToImage");
            List<File> fileList = new ArrayList<>();
            for (String fileName : fileNames) {
                fileList.add(new File("D:/pdf/pdfToImage/"+fileName));
            }
            //去除PDF水印
            removePdfWatermark(fileList);
            //去除水印后的图片转PDF
            List<Integer> fileNamesInteger = new ArrayList<>();
            List<String> allFiles = new ArrayList<>();
            for (String fileName : fileNames) {
                if(fileName.endsWith(".png")){
                    String str  = fileName.substring(0, fileName.indexOf(".png"));
                    fileNamesInteger.add(Integer.valueOf(str));
                }
            }
            Collections.sort(fileNamesInteger);
            for (Integer fileName : fileNamesInteger) {
                String str ="D:/pdf/pdfToImage/"+ fileName+".png";
                allFiles.add(str);
            }
            String fileName = filePath.substring(filePath.lastIndexOf("/")+1);
            //图片转PDF
            imgOfPdf("D:/pdf/imgToPdf/"+fileName, allFiles);

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void pdfToImage(String filePath) throws IOException {
//        File file = new File(filePath);
//        PDDocument doc = Loader.loadPDF(file);
//        PDFRenderer renderer = new PDFRenderer(doc);
//        int pageCount = doc.getNumberOfPages();
//        BufferedImage merge = null;
//        int curY = 0;
//        for (int i = 0; i < pageCount; i++) {
//            try {
//                BufferedImage image = renderer.renderImage(i, 2, ImageType.RGB);
//                ImageIO.write(image, "png", new File("D:/pdf/pdfToImage/" + i + ".png"));
//            } catch (Exception e) {
//                e.printStackTrace();
//            }
//        }
        PDDocument doc = Loader.loadPDF(new File(filePath));
        PDPageTree pages = doc.getPages();
        int i = 0;
        for (PDPage page : pages) {
            PDResources resources = page.getResources();
            COSDictionary dic = resources.getCOSObject().getCOSDictionary(COSName.XOBJECT);
            dic.removeItem(COSName.getPDFName("华泰证券 严禁篡改伪造"));
        }
        doc.save(new File("D:/pdf/pdfToImage/无水印.pdf"));
        // The #close() method must be called once the document is no longer needed.
        doc.close();
    }
    /**
     * 得到文件名称
     *
     * @param path 路径
     * @return {@link List}<{@link String}>
     */
    private static List<String> getFileNames(String path) {
        File file = new File(path);
        if (!file.exists()) {
            return null;
        }
        List<String> fileNames = new ArrayList<>();
        return getFileNames(file, fileNames);
    }

    /**
     * 得到文件名称
     *
     * @param file      文件
     * @param fileNames 文件名
     * @return {@link List}<{@link String}>
     */
    private static List<String> getFileNames(File file, List<String> fileNames) {
        File[] files = file.listFiles();
        for (File f : files) {
            if (f.isDirectory()) {
                getFileNames(f, fileNames);
            } else {
                fileNames.add(f.getName());
            }
        }
        return fileNames;
    }
    /**
     * 去除文件列表里图片的水印并替换
     *
     * @Param fileList 文件列表
     */
    public static void removePdfWatermark(List<File> fileList) {
        try {
            for (File file : fileList) {
                if (!file.getName().endsWith("png") && !file.getName().endsWith("jpg")) {
                    continue;
                }
                //用ImageIO流读取像素块
                BufferedImage bi = ImageIO.read(file);
                if (bi != null) {
                    removeWatermark(bi);
                    //生成的图片格式
                    String formatName = file.getName().substring(file.getName().lastIndexOf(".") + 1);
                    //用ImageIO流生成的处理图替换原图片
                    ImageIO.write(bi, formatName, file);
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    /**
     * 去除水印
     */
    private static void removeWatermark(BufferedImage bi) {
        Color wColor = new Color(254, 254, 254);
        Color hColor = new Color(197, 196, 191);
        //白底水印
        for (int i = 0; i < bi.getWidth(); i++) {
            for (int j = 0; j < bi.getHeight(); j++) {
                int color = bi.getRGB(i, j);
                Color oriColor = new Color(color);
                int red = oriColor.getRed();
                int greed = oriColor.getGreen();
                int blue = oriColor.getBlue();
                if (red == 254 && greed == 254 && blue == 254) {
                    continue;
                }
                if (red > 220 && greed > 180 && blue > 80) {
                    bi.setRGB(i, j, wColor.getRGB());
                }
                if (red <= 240 && greed >= 200 && blue >= 150) {
                    bi.setRGB(i, j, wColor.getRGB());
                }
            }
        }
    }
    public static void imgOfPdf(String filepath, List<String> imgUrl) {

        try {
            //输出pdf文件路径
            String pdfUrl =  filepath;
            //生成pdf
            File file = Pdf(imgUrl, pdfUrl);
            file.createNewFile();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static File Pdf(List<String> imageUrllist, String mOutputPdfFileName) {
        //new一个pdf文档
        Document doc = new Document(PageSize.A4, 0, 0, 0, 0);
        try {
            //pdf写入
            PdfWriter.getInstance(doc, new FileOutputStream(mOutputPdfFileName));
            //打开文档
            doc.open();
            //循环图片List，将图片加入到pdf中
            for (int i = 0; i < imageUrllist.size(); i++) {
                //在pdf创建一页
                doc.newPage();
                //通过文件路径获取image
                Image png1 = Image.getInstance(imageUrllist.get(i));
                float height = png1.getHeight();
                float width = png1.getWidth();
                int percent = getPercent2(height, width);
                png1.setAlignment(Image.MIDDLE);
                // 表示是原来图像的比例;
                png1.scalePercent(percent + 3);
                doc.add(png1);
            }
            doc.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (DocumentException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        //输出流
        File mOutputPdfFile = new File(mOutputPdfFileName);
        if (!mOutputPdfFile.exists()) {
            mOutputPdfFile.deleteOnExit();
            return null;
        }
        //反回文件输出流
        return mOutputPdfFile;
    }
    public static int getPercent2(float h, float w) {
        int p = 0;
        float p2 = 0.0f;
        p2 = 450 / w * 100;
        p = Math.round(p2);
        return p;
    }
}