package com.yj.earth.common.util;

import org.springframework.http.MediaType;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class FileCommonUtil {

    /**
     * 将本地文件转换为 MultipartFile
     */
    public static MultipartFile convertToMultipartFile(File file) {
        try (FileInputStream inputStream = new FileInputStream(file)) {
            return new MockMultipartFile(
                    "files",
                    file.getName(),
                    MediaType.APPLICATION_OCTET_STREAM_VALUE,
                    inputStream
            );
        } catch (IOException e) {
            return null;
        }
    }

    public static MediaType getImageMediaType(String suffix) {
        String lowerSuffix = suffix.toLowerCase();
        switch (lowerSuffix) {
            case "jpg":
            case "jpeg":
                return MediaType.IMAGE_JPEG;
            case "glb":
                return MediaType.valueOf("model/gltf-binary");
            case "png":
                return MediaType.IMAGE_PNG;
            case "gif":
                return MediaType.IMAGE_GIF;
            case "bmp":
                return MediaType.valueOf("image/bmp");
            case "webp":
                return MediaType.valueOf("image/webp");
            case "svg":
                return MediaType.valueOf("image/svg+xml");
            default:
                return MediaType.APPLICATION_OCTET_STREAM;
        }
    }
}