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 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;

/**
 * 管理员
 */
@Controller
@Scope(value = "prototype")
public class AdminController {

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

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

	@RequestMapping("admin_user_list")
	public String adminUserList(HttpServletRequest request) {
		String key = request.getParameter("key");
		List<User> users = userService.getUserAll(key);
		if (key != null && !key.isEmpty()) {
			request.setAttribute("key", key);
		}
		request.setAttribute("users", users);
		return "admin/admin_user_list";
	}

	@RequestMapping("admin_user_edit")
	public String adminUserEdit(HttpServletRequest request) {
		String id = request.getParameter("id");
		if (id != null && !id.isEmpty()) {
			User user = userService.getUser(Integer.valueOf(id));
			if (user != null) {
				request.setAttribute("example", user);
				return "admin/admin_user_edit";
			}
		}
		String key = request.getParameter("key");
		List<User> users = userService.getUserAll(key);
		if (key != null && !key.isEmpty()) {
			request.setAttribute("key", key);
		}
		request.setAttribute("users", users);
		return "admin/admin_user_list";
	}

	@RequestMapping("admin_user_update")
	public String adminUserUpdate(HttpServletRequest request) {
		String id = request.getParameter("id");
		String sex = request.getParameter("sex");
		String telephone = request.getParameter("telephone");
		String address = request.getParameter("address");
		if (id != null && !id.isEmpty()) {
			User user = userService.getUser(Integer.valueOf(id));
			if (user != null) {
				user.setSex(sex);
				user.setTelephone(telephone);
				user.setAddress(address);
				userService.updateUser(user);
			}
		}
		String key = request.getParameter("key");
		List<User> users = userService.getUserAll(key);
		if (key != null && !key.isEmpty()) {
			request.setAttribute("key", key);
		}
		request.setAttribute("users", users);
		return "admin/admin_user_list";
	}

	@RequestMapping("admin_user_delete")
	public String adminUserDelete(HttpServletRequest request) {
		String id = request.getParameter("id");
		String key = request.getParameter("key");
		if (id != null && !id.isEmpty()) {
			User user = userService.getUser(Integer.valueOf(id));
			if (user != null) {
				userService.deleteUser(user.getId());
			}
		}
		List<User> users = userService.getUserAll(key);
		if (key != null && !key.isEmpty()) {
			request.setAttribute("key", key);
		}
		request.setAttribute("users", users);
		return "admin/admin_user_list";
	}

	@RequestMapping("admin_type")
	public String adminType(HttpServletRequest request) {
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("booktypes", booktypes);
		return "admin/admin_type_list";
	}

	@RequestMapping("admin_type_add")
	public String adminTypeAdd(HttpServletRequest request) {
		String typename = request.getParameter("typename");
		if (typename == null || typename.isEmpty()) {
			return "admin/admin_type_add";
		}
		Booktype booktype = new Booktype();
		booktype.setTypename(typename);
		bookTypeService.addBooktype(booktype);
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("booktypes", booktypes);
		return "admin/admin_type_list";
	}

	@RequestMapping("admin_type_delete")
	public String adminTypeDelete(HttpServletRequest request) {
		String id = request.getParameter("id");
		if (id != null && !id.isEmpty()) {
			Booktype booktype = bookTypeService.getBooktype(Integer.valueOf(id));
			if (booktype != null) {
				bookTypeService.deleteBooktype(booktype.getId());
			}
		}
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("booktypes", booktypes);
		return "admin/admin_type_list";
	}

	@RequestMapping("admin_book_list")
	public String adminBookList(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 "admin/admin_book_list";
	}

	@RequestMapping("admin_book_add")
	public String adminBookAdd(HttpServletRequest request) {
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("booktypes", booktypes);

		String bookname = request.getParameter("bookname");
		String author = request.getParameter("author");
		String introduce = request.getParameter("introduce");
		String surplus = request.getParameter("surplus");
		String type = request.getParameter("type");
		String headUrl = "/static/images/touxiang/01.jpg";
		if (bookname == null || bookname.isEmpty()) {
			return "admin/admin_book_add";
		}
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) (request);
		MultipartFile file = multipartRequest.getFile("file");
		if (!file.getOriginalFilename().isEmpty()) {
			String path = request.getServletContext().getRealPath("/") + "page/static/images/picture/";
			String name = String.valueOf(System.currentTimeMillis() + "_" + file.getOriginalFilename());
			File destFile = new File(path, name);
			try {
				file.transferTo(destFile);
			} catch (IllegalStateException | IOException e) {
				e.printStackTrace();
			}
			headUrl = "/images/picture/" + name;
		}

		Book book = new Book();
		book.setBookname(bookname);
		book.setAuthor(author);
		book.setIntroduce(introduce);
		book.setSurplus(surplus);
		book.setType(type);
		book.setPicture(headUrl);
		book.setBorrow("0");
		book.setComment("0");
		bookService.addBook(book);
		List<Book> books = bookService.getBookAll(null, null);
		request.setAttribute("books", books);
		return "admin/admin_book_list";
	}

	@RequestMapping("admin_book_edit")
	public String adminBookEdit(HttpServletRequest request) {
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("booktypes", booktypes);

		String id = request.getParameter("id");
		String key = request.getParameter("key");
		String bookname = request.getParameter("bookname");
		String author = request.getParameter("author");
		String introduce = request.getParameter("introduce");
		String surplus = request.getParameter("surplus");
		String type = request.getParameter("type");
		String pictureUrl = request.getParameter("picture");
		if (id == null || id.isEmpty()) {
			List<Book> books = bookService.getBookAll(key, type);
			request.setAttribute("books", books);
			return "admin/admin_book_list";
		}
		Book book = bookService.getBook(Integer.valueOf(id));
		if (book == null) {
			List<Book> books = bookService.getBookAll(key, type);
			request.setAttribute("books", books);
			return "admin/admin_book_list";
		}
		if (bookname == null || bookname.isEmpty()) {
			request.setAttribute("book", book);
			return "admin/admin_book_edit";
		}
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) (request);
		MultipartFile file = multipartRequest.getFile("file");
		if (!file.getOriginalFilename().isEmpty()) {
			String path = request.getServletContext().getRealPath("/") + "page/static/images/picture/";
			String name = String.valueOf(System.currentTimeMillis() + "_" + file.getOriginalFilename());
			File destFile = new File(path, name);
			try {
				file.transferTo(destFile);
			} catch (IllegalStateException | IOException e) {
				e.printStackTrace();
			}
			pictureUrl = "images/picture/" + name;
		}
		book.setBookname(bookname);
		book.setAuthor(author);
		book.setIntroduce(introduce);
		book.setSurplus(surplus);
		book.setType(type);
		book.setPicture(pictureUrl);
		bookService.updateBook(book);
		List<Book> books = bookService.getBookAll(null, null);
		request.setAttribute("books", books);
		return "admin/admin_book_list";
	}

	@RequestMapping("admin_book_delete")
	public String adminBookDelete(HttpServletRequest request) {
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("booktypes", booktypes);

		String id = request.getParameter("id");
		String key = request.getParameter("key");
		String type = request.getParameter("type");
		if (id != null && !id.isEmpty()) {
			Book book = bookService.getBook(Integer.valueOf(id));
			if (book != null) {
				bookService.deleteBook(book.getId());
			}
		}
		List<Book> books = bookService.getBookAll(key, type);
		request.setAttribute("books", books);
		return "admin/admin_book_list";
	}

	@RequestMapping("admin_borrow")
	public String adminDcShow(HttpServletRequest request) {
		List<Booktype> booktypes = bookTypeService.getBooktypeAll();
		request.setAttribute("booktypes", booktypes);
		List<Bookborrow> bookborrows = bookBorrowService.getBookborrowAll();
		List<Borrow> borrows = new ArrayList<>();
		for (Bookborrow bookborrow : bookborrows) {
			Borrow borrow = new Borrow();
			User user = userService.getUser(bookborrow.getUserid());
			Book book = bookService.getBook(bookborrow.getBookid());
			if (user == null) {
				continue;
			}
			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 "admin/admin_borrow";
	}

}