package com.ruoyi.common.filecompare;
import com.spire.doc.DifferRevisions;
import com.spire.doc.Document;
import com.spire.doc.fields.TextRange;
import com.spire.ms.System.Collections.Generic.List;

import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Set;

public class SpireDoc {
    public static Set<String> compare(String file1, String file2) {
        Document doc1 = new Document();
        Document doc2 = new Document();
        Set<String> set = new LinkedHashSet<>();
        try {
            doc1.loadFromFile(file1);
            doc2.loadFromFile(file2);
            doc1.compare(doc2, "Host");
//            doc1.saveToFile("C:\\Users\\admin\\Desktop\\Result.docx");
            DifferRevisions differRevisions = new DifferRevisions(doc1);
            List insertRevisionsList = differRevisions.getInsertRevisions();
            List  deleteRevisionsList = differRevisions.getDeleteRevisions();
            int m = 0;
            int n = 0;
            for (int i = 0; i < insertRevisionsList.size(); i++)
            {
                if (insertRevisionsList.get(i) instanceof TextRange)
                {
                    m += 1;
                    //获取指定插入改动，并获取插入的具体内容
                    TextRange textRange = (TextRange)insertRevisionsList.get(i) ;
                    set.add("插入 #" + m + ":" + textRange.getText());
                }
            }
            for (int i = 0; i < deleteRevisionsList.size() ; i++)
            {
                if (deleteRevisionsList.get(i) instanceof TextRange)
                {
                    n += 1;
                    //获取指定删除改动，并获取删除的具体内容
                    TextRange textRange = (TextRange) deleteRevisionsList.get(i) ;
                    set.add("删除 #" + n + ":" + textRange.getText());
                }
            }
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            doc1.close();
            doc2.close();
            return set;
        }
    }
}