package com.david.util;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.UUID;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts.upload.FormFile;

public class FileUpExecute implements IFileUpExecute {

	private FormFile formFile;
	
	private IFileUtil fileUtil;
	
	public byte[] getFileData() {
		// TODO Auto-generated method stub
		try {
			return this.formFile.getFileData();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		}
	}

	public String getFileName() {
		// TODO Auto-generated method stub
		//return this.formFile.getFileName();
		return UUID.randomUUID().toString()+"."+this.getFileSuffix();
	}

	public String getFileSuffix() {
		// TODO Auto-generated method stub
		return this.fileUtil.getFileSuffix(this.formFile.getFileName());
	}

	public void init(FormFile formFile) {
		// TODO Auto-generated method stub
		this.formFile=formFile;
	}

	public String saveAs(HttpServletRequest request, String path) {
		// TODO Auto-generated method stub
		try {
			String absPath=new File(fileUtil.changePathToAbsol(request, path),this.getFileName()).getAbsolutePath();
			FileOutputStream out=new FileOutputStream(absPath);
			try {
				out.write(formFile.getFileData());
				out.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			//返回絕對路徑
			//return fileUtil.changePathToRelative(request, absPath);
			return absPath;
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			return null;
		}
		
	}

	public void setFileUtil(IFileUtil fileUtil) {
		// TODO Auto-generated method stub
		this.fileUtil=fileUtil;
	}

}