package com.library.controller;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;

import com.library.model.Book;
import com.library.model.Bookborrow;
import com.library.model.Booktype;
import com.library.model.Borrow;
import com.library.model.User;
import com.library.service.BookBorrowService;
import com.library.service.BookService;
import com.library.service.BookTypeService;
import com.library.service.UserService;

/**
 * 用户
 */
@Controller
@Scope(value = "prototype")
public class UserController {

	@Autowired
	private UserService userService;
	@Autowired
	private BookService bookService;
	@Autowired
	private BookTypeService bookTypeService;
	@Autowired
	private BookBorrowService bookBorrowService;

	@RequestMapping("user_home")
	public String userHome(HttpServletRequest request) {
		List<User> users = userService.getUserAll(null);
		List<Book> books = bookService.getBookAll(null, null);
		request.setAttribute("users", users);
		request.setAttribute("books", books);
		return "user/user_home";
	}

	@RequestMapping("user_book_list")
	public String userBookList(HttpServletRequest request) {
		String key = request.getParameter("key");
		String type = request.getParameter("type");
		if (key != null && !key.isEmpty()) {
			request.setAttribute("key", key);
		}
		if (type != null && !type.isEmpty()) {
			request.setAttribute("type", type);
		}
		List<Book> books = bookService.getBookAll(key, type);
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("books", books);
		request.setAttribute("booktypes", booktypes);
		return "user/user_book_list";
	}

	@RequestMapping("user_book_details")
	public String userBookDetails(HttpServletRequest request) {
		String id = request.getParameter("id");
		if (id != null && !id.isEmpty()) {
			Book book = bookService.getBook(Integer.valueOf(id));
			if (book != null) {
				List<Booktype> booktypes = bookTypeService.getBooktypeAll();
				request.setAttribute("book", book);
				request.setAttribute("booktypes", booktypes);
				return "user/user_book_details";
			}
		}
		List<Book> books = bookService.getBookAll(null, null);
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("books", books);
		request.setAttribute("booktypes", booktypes);
		return "user/user_book_list";
	}

	@RequestMapping("user_book_borrow")
	public String userBookBorrow(HttpServletRequest request, HttpSession session) {
		String id = request.getParameter("id");
		if (id != null && !id.isEmpty()) {
			Book book = bookService.getBook(Integer.valueOf(id));
			if (book != null) {
				User user = (User) session.getAttribute("user");
				Bookborrow bookborrow = new Bookborrow();
				bookborrow.setUserid(user.getId());
				bookborrow.setBookid(book.getId());
				bookBorrowService.addBookborrow(bookborrow);
				int surplus = Integer.valueOf(book.getSurplus()) - 1;
				int borrow = Integer.valueOf(book.getBorrow()) + 1;
				book.setSurplus(String.valueOf(surplus));
				book.setBorrow(String.valueOf(borrow));
				bookService.updateBook(book);
				return "redirect:user_borrow.cc";
			}
		}
		List<Book> books = bookService.getBookAll(null, null);
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("books", books);
		request.setAttribute("booktypes", booktypes);
		return "user/user_book_list";
	}

	@RequestMapping("user_borrow")
	public String userDcShow(HttpServletRequest request, HttpSession session) {
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("booktypes", booktypes);

		User user = (User) session.getAttribute("user");
		if (user != null) {
			List<Bookborrow> bookborrows = bookBorrowService.getBookborrowByUserId(user.getId());
			List<Borrow> borrows = new ArrayList<>();
			for (Bookborrow bookborrow : bookborrows) {
				Borrow borrow = new Borrow();
				Book book = bookService.getBook(bookborrow.getBookid());
				if (book == null) {
					continue;
				}
				borrow.setId(bookborrow.getId());
				borrow.setUsername(user.getUsername());
				borrow.setTelephone(user.getTelephone());
				borrow.setBookname(book.getBookname());
				borrow.setAuthor(book.getAuthor());
				borrow.setType(book.getType());
				borrow.setPicture(book.getPicture());
				borrows.add(borrow);
			}
			request.setAttribute("borrows", borrows);
			return "user/user_borrow";
		}
		List<Book> books = bookService.getBookAll(null, null);
		request.setAttribute("books", books);
		return "user/user_book_list";
	}

	@RequestMapping("user_borrow_details")
	public String userBorrowDetails(HttpServletRequest request, HttpSession session) {
		String id = request.getParameter("id");
		if (id != null && !id.isEmpty()) {
			Bookborrow bookborrow = bookBorrowService.getBookborrow(Integer.valueOf(id));
			if (bookborrow != null) {
				Book book = bookService.getBook(bookborrow.getBookid());
				if (book != null) {
					request.setAttribute("book", book);
					List<Booktype> booktypes = bookTypeService.getBooktypeAll();
					request.setAttribute("booktypes", booktypes);
					return "user/user_borrow_details";
				}
			}
		}
		return "redirect:user_book_list.cc";
	}

	@RequestMapping("user_info")
	public String userInfo(HttpServletRequest request, HttpSession session) {
		User user = (User) session.getAttribute("user");
		request.setAttribute("example", user);
		return "user/user_info";
	}

	@RequestMapping("user_info_edit")
	public String userInfoEdit(HttpServletRequest request, HttpSession session) {
		User user = (User) session.getAttribute("user");
		request.setAttribute("example", user);
		return "user/user_info_edit";
	}

	@RequestMapping("user_info_update")
	public String userInfoUpdate(HttpServletRequest request, HttpSession session) {
		String sex = request.getParameter("sex");
		String telephone = request.getParameter("telephone");
		String address = request.getParameter("address");
		if (telephone == null || telephone.isEmpty()) {
			return "redirect:user_info_edit.cc";
		}
		User user = (User) session.getAttribute("user");
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) (request);
		MultipartFile file = multipartRequest.getFile("file");
		if (!file.getOriginalFilename().isEmpty()) {
			String path = request.getServletContext().getRealPath("/") + "page/static/images/touxiang/";
			String name = String.valueOf(System.currentTimeMillis() + "_" + file.getOriginalFilename());
			File destFile = new File(path, name);
			try {
				file.transferTo(destFile);
			} catch (IllegalStateException | IOException e) {
				e.printStackTrace();
			}
			user.setPortrait("images/touxiang/" + name);
		}
		user.setSex(sex);
		user.setTelephone(telephone);
		user.setAddress(address);
		userService.updateUser(user);
		session.setAttribute("user", user);
		return "redirect:user_info.cc";
	}

}