파일목록 조회 --> 모든 폴더 depth 조회하기 추가

src/main/java/com/kamco/cd/kamcoback/mapsheet/service/MapSheetMngService.java

@@ -1,5 +1,7 @@
 package com.kamco.cd.kamcoback.mapsheet.service;
 
+import static java.lang.String.CASE_INSENSITIVE_ORDER;
+
 import com.kamco.cd.kamcoback.common.utils.NameValidator;
 import com.kamco.cd.kamcoback.mapsheet.dto.FileDto;
 import com.kamco.cd.kamcoback.mapsheet.dto.FileDto.FilesDto;
@@ -22,6 +24,7 @@ import java.util.Arrays;
 import java.util.Comparator;
 import java.util.Date;
 import java.util.List;
+import java.util.Set;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 import lombok.RequiredArgsConstructor;
@@ -102,12 +105,11 @@ public class MapSheetMngService {
 
       folderDtoList.sort(
           Comparator.comparing(
-                  FolderDto::getFolderNm, String.CASE_INSENSITIVE_ORDER // 대소문자 구분 없이
+                  FolderDto::getFolderNm, CASE_INSENSITIVE_ORDER // 대소문자 구분 없이
                   )
               .reversed());
 
       folderTotCnt = folderDtoList.size();
-
       folderErrTotCnt = (int)folderDtoList.stream()
          .filter(dto -> dto.getIsValid().toString().equals("false") )
         .count();
@@ -188,6 +190,9 @@ public class MapSheetMngService {
     Path startPath = Paths.get(srchDto.getDirPath());
     String dirPath = srchDto.getDirPath();
     String extension = srchDto.getExtension();
+    String sortType =  srchDto.getSortType();
+
+    Set<String> targetExtensions = createExtensionSet(extension);
 
     List<FileDto.Basic> fileDtoList = new ArrayList<>();
     SimpleDateFormat dttmFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
@@ -200,6 +205,12 @@ public class MapSheetMngService {
       fileDtoList =
         stream
           .filter(Files::isRegularFile)
+          .filter(p -> extension == null ||
+            extension.equals("") ||
+            extension.equals("*") ||
+            targetExtensions.contains(extractExtension(p))
+          )
+          .sorted(getFileComparator(sortType))
           .map(
             path -> {
 
@@ -224,16 +235,88 @@ public class MapSheetMngService {
         .mapToLong(FileDto.Basic::getFileSize)
         .sum();
 
+      /*
+      if( sort.equals("name")) {
+        fileDtoList.sort(
+          Comparator.comparing(
+              FileDto.Basic::getFileNm, String.CASE_INSENSITIVE_ORDER
+            )
+            .reversed());
+      }
+      else if( sort.equals("date")) {
+        fileDtoList.sort(
+          Comparator.comparing(
+              FileDto.Basic::getLastModified
+            )
+            .reversed());
+      }
+
+       */
+
     } catch (IOException e) {
       System.err.println("파일 I/O 오류 발생: " + e.getMessage());
     }
 
-
-    FilesDto filesDto = new FilesDto(dirPath, fileTotCnt, fileTotSize, fileDtoList);
-
-    return filesDto;
+    return new FilesDto(dirPath, fileTotCnt, fileTotSize, fileDtoList);
   }
 
+  public Set<String> createExtensionSet(String extensionString) {
+    if (extensionString == null || extensionString.isBlank()) {
+      return Set.of();
+    }
+
+    // "java, class" -> ["java", " class"] -> [".java", ".class"]
+    return Arrays.stream(extensionString.split(","))
+      .map(ext -> ext.trim())
+      .filter(ext -> !ext.isEmpty())
+      .map(ext -> "." + ext.toLowerCase())
+      .collect(Collectors.toSet());
+  }
+
+  public String extractExtension(Path path) {
+    String filename = path.getFileName().toString();
+    int lastDotIndex = filename.lastIndexOf('.');
+
+    // 확장자가 없거나 파일명이 .으로 끝나는 경우
+    if (lastDotIndex == -1 || lastDotIndex == filename.length() - 1 ) {
+      return ""; // 빈 문자열 반환
+    }
+
+    // 확장자 추출 및 소문자 변환
+    return filename.substring(lastDotIndex).toLowerCase();
+  }
+
+
+  public Comparator<Path> getFileComparator(String sortType) {
+
+    // 파일 이름 비교 기본 Comparator (대소문자 무시)
+    Comparator<Path> nameComparator = Comparator.comparing(
+      path -> path.getFileName().toString(),
+      CASE_INSENSITIVE_ORDER
+    );
+
+    Comparator<Path> dateComparator = Comparator.comparing(
+      path -> {
+        try {
+          return Files.getLastModifiedTime(path);
+        } catch (IOException e) {
+          return FileTime.fromMillis(0);
+        }
+      }
+    );
+
+    if ("name desc".equalsIgnoreCase(sortType)) {
+      return nameComparator.reversed();
+    } else if ("date".equalsIgnoreCase(sortType)) {
+      return dateComparator;
+    } else if ("date desc".equalsIgnoreCase(sortType)) {
+      return dateComparator.reversed();
+    } else {
+      return nameComparator;
+    }
+  }
+
+
 
   public Page<MapSheetMngDto.ErrorDataDto> findMapSheetErrorList(
       MapSheetMngDto.@Valid searchReq searchReq) {