package user.web.action;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import java.util.List;
import java.util.UUID;

import org.apache.commons.io.FileUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.struts2.ServletActionContext;

import sun.misc.BASE64Encoder;
import user.domain.User;
import user.exception.SQLException;
import user.service.UserService;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import com.opensymphony.xwork2.interceptor.annotations.InputConfig;

public class UserAction extends ActionSupport implements ModelDriven<User> {
	private User u = new User();
	List<User> users = null;

	public User getModel() {
		// TODO Auto-generated method stub
		return u;
	}

	@Override
	public String execute() throws Exception {
		return super.execute();
	}

	// 配置错误返回的试图
	// @InputConfig(resultName="NBA")
	public String login() {
		UserService useService = new UserService();
		User userLogin = useService.login(u);

		if (userLogin == null) {
			this.addActionError("用户名密码错误");
			return INPUT;
		} else {
			ServletActionContext.getRequest().getSession()
					.setAttribute("user", userLogin);
		}
		return SUCCESS;
	}

	@InputConfig(resultName = "addFAIL")
	public String add() throws IOException {
		if (u.getUpload() != null) {
			String uuid = UUID.randomUUID().toString();
			String path = "/WEB-INF/upload/" + uuid;
			File dfile = new File(ServletActionContext.getServletContext()
					.getRealPath(path));
			FileUtils.copyFile(u.getUpload(), dfile);
			u.setPath(path);
			u.setFilename(u.getUploadFileName());
		}
		UserService useService = new UserService();
		useService.saveUser(u);
		return "addSUCCESS";
	}

	public String list() {
		UserService userService = new UserService();
		users = userService.list(u);
		return "listSUCCESS";
	}

	public List<User> getUsers() {
		return users;
	}

	public String delete() {
		UserService userService = new UserService();
		// 删除简历
		User user = userService.findById(u.getUserID());
		if (StringUtils.isNotBlank(user.getPath())) {
			File file = new File(ServletActionContext.getServletContext()
					.getRealPath(user.getPath()));
			file.delete();
		}
		userService.delete(u);
		return "deleteSUCCESS";
	}

	public String views() {
		UserService userService = new UserService();
		User user = userService.findById(u.getUserID());
		user.setPath(ServletActionContext.getServletContext().getRealPath(
				u.getPath()));
		ActionContext.getContext().getValueStack().push(user);
		return "viewSUCCESS";
	}

	public String download() {
		UserService userService = new UserService();
		u = userService.findById(u.getUserID());
		return "downloadSUCCESS";
	}

	public InputStream getInputStream() throws FileNotFoundException {
		if (u == null || u.getPath() == null) {
			return null;
		}
		File file = new File(ServletActionContext.getServletContext()
				.getRealPath(u.getPath()));
		return new FileInputStream(file);
	}

	// 返回mime类型
	public String getContentType() {
		if (u == null || u.getFilename() == null) {
			return null;
		}
		return ServletActionContext.getServletContext().getMimeType(
				u.getFilename());
	}

	// 返回编码后的文件
	public String getDownloadFileName() throws IOException {
		if (u == null || u.getFilename() == null) {
			return null;
		}
		return encodeDownloadFilename(u.getFilename(), ServletActionContext
				.getRequest().getHeader("user-agent"));
	}

	/**
	 * 下载文件时，针对不同浏览器，进行附件名的编码
	 * 
	 * @param filename
	 *            下载文件名
	 * @param agent
	 *            客户端浏览器
	 * @return 编码后的下载附件名
	 * @throws IOException
	 */
	public String encodeDownloadFilename(String filename, String agent)
			throws IOException {
		if (StringUtils.isNotBlank(filename)) {
			if (agent.contains("Firefox")) { // 火狐浏览器
				filename = "=?UTF-8?B?"
						+ new BASE64Encoder()
								.encode(filename.getBytes("utf-8")) + "?=";
				filename = filename.replaceAll("\r\n", ""); // 解决②每76个字符加一个换行符
															// 问题！
			} else { // IE及其他浏览器
				filename = URLEncoder.encode(filename, "utf-8");
			}
		}
		return filename;
	}

	public String editview() {
		UserService userService = new UserService();
		ActionContext.getContext().getValueStack()
				.push(userService.findById(u.getUserID()));
		return "editviewSUCCESS";
	}

	public String edit() {
		UserService userService = new UserService();
		if (u.getUpload() == null) {
			userService.edit(u, false);
		} else {
			String uuid = UUID.randomUUID().toString();
			String path = "/WEB-INF/upload/" + uuid;
			File dfile = new File(ServletActionContext.getServletContext()
					.getRealPath(path));
			try {
				FileUtils.copyFile(u.getUpload(), dfile);
			} catch (IOException e) {
				e.printStackTrace();
				throw new SQLException("qqq");
			}
			u.setPath(path);
			u.setFilename(u.getUploadFileName());
			User oldUser = userService.findById(u.getUserID());
			if (oldUser.getPath() != null) {
				File file = new File(ServletActionContext.getServletContext()
						.getRealPath(oldUser.getPath()));
				file.delete();
			}
			userService.edit(u, true);
		}
		return "editSUCCESS";
	}
	// public String edit(){
	//
	// }
}