package com.ots.project.tool;

import com.aspose.words.*;
import lombok.extern.slf4j.Slf4j;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.lang.reflect.Constructor;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

@Slf4j
public class PdfUtil {

    /**
     * 设置用户字体位置
     */
    public static void setFont() {
        String[] fonts = {"C:\\Users\\大头\\AppData\\Local\\Microsoft\\Windows\\Fonts\\", "C:\\Users\\datou\\AppData\\Local\\Microsoft\\Windows\\Fonts\\", "/usr/share/fonts"};
        List<FontSourceBase> fontSources = new ArrayList(Arrays.asList(FontSettings.getDefaultInstance().getFontsSources()));
        for (int i = 0; i < fonts.length; i++) {
            FolderFontSource folderFontSource = new FolderFontSource(fonts[i], true);
            fontSources.add(folderFontSource);
        }
        FontSourceBase[] fontSourceBases = fontSources.toArray(new FontSourceBase[fontSources.size()]);
        FontSettings.getDefaultInstance().setFontsSources(fontSourceBases);
    }

    public static void convertPDF(String input) {
        try {
            registerWord();
            setFont();
            Document pres = null;
            //手动替换输出pdf名称
            String output = input.replaceAll(".docx", ".pdf");
            long old = System.currentTimeMillis();
            FileInputStream fileInput = new FileInputStream(input);
            pres = new Document(fileInput);
            FileOutputStream out = new FileOutputStream(new File(output));
            pres.save(out, SaveFormat.PDF);
            out.close();
            long now = System.currentTimeMillis();
            log.info("doc转pdf耗时：{}秒", ((now - old) / 1000.0));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * aspose-words:jdk17:23.4 版本
     */
    public static void registerWord() throws Exception {
        // 构造一个注册信息
        Class<?> zzXgCClass = Class.forName("com.aspose.words.zzXgC");
        Constructor<?> constructors = zzXgCClass.getDeclaredConstructors()[0];
        constructors.setAccessible(true);
        Object instance = constructors.newInstance("zzW5k", "zzYON");
        // zzXFN = 1
        java.lang.reflect.Field zzXFN = zzXgCClass.getDeclaredField("zzXFN");
        zzXFN.setAccessible(true);
        zzXFN.set(instance, 1);

        // 把注册信息放到 zzYVA这个类中来
        Class<?> zzYVAClass = Class.forName("com.aspose.words.zzYVA");
        java.lang.reflect.Field zzwP = zzYVAClass.getDeclaredField("zzwP");
        zzwP.setAccessible(true);
        ArrayList<Object> zzwPValue = new ArrayList<>();
        zzwPValue.add(instance);
        zzwP.set(null, zzwPValue);

        // 生成文档会掉这个来判断 zzXQo
        Class<?> zzXQoClass = Class.forName("com.aspose.words.zzXQo");
        java.lang.reflect.Field zzHA = zzXQoClass.getDeclaredField("zzHA");
        zzHA.setAccessible(true);
        zzHA.set(null, 128);
        java.lang.reflect.Field zzWod = zzXQoClass.getDeclaredField("zzWod");
        zzWod.setAccessible(true);
        zzWod.set(null, false);
    }

    public static void main(String[] args) {
        //convertPDF("D:\\测评系统\\home\\林_PAQ_GS_TH.docx");
        convertPDF("C:\\Users\\大头\\Desktop\\林3_CIAQ_IA_CN.docx");
    }

}