/**
 * Copyright 2018-2020 stylefeng & fengshuonan (https://gitee.com/stylefeng)
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.stylefeng.guns.modular.system.controller;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollectionUtil;
import cn.stylefeng.guns.config.properties.GunsProperties;
import cn.stylefeng.guns.core.common.annotion.BussinessLog;
import cn.stylefeng.guns.core.common.annotion.Permission;
import cn.stylefeng.guns.core.common.constant.Const;
import cn.stylefeng.guns.core.common.constant.dictmap.UserDict;
import cn.stylefeng.guns.core.common.constant.factory.ConstantFactory;
import cn.stylefeng.guns.core.common.constant.state.ManagerStatus;
import cn.stylefeng.guns.core.common.exception.BizExceptionEnum;
import cn.stylefeng.guns.core.log.LogObjectHolder;
import cn.stylefeng.guns.core.shiro.ShiroKit;
import cn.stylefeng.guns.core.shiro.ShiroUser;
import cn.stylefeng.guns.modular.system.entity.User;
import cn.stylefeng.guns.modular.system.factory.UserFactory;
import cn.stylefeng.guns.modular.system.model.UserDto;
import cn.stylefeng.guns.modular.system.service.UserService;
import cn.stylefeng.guns.modular.system.warpper.UserWarpper;
import cn.stylefeng.roses.core.base.controller.BaseController;
import cn.stylefeng.roses.core.datascope.DataScope;
import cn.stylefeng.roses.core.reqres.response.ResponseData;
import cn.stylefeng.roses.core.util.ToolUtil;
import cn.stylefeng.roses.kernel.model.exception.RequestEmptyException;
import cn.stylefeng.roses.kernel.model.exception.ServiceException;
import com.baomidou.mybatisplus.mapper.EntityWrapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.validation.Valid;
import java.io.File;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

/**
 * 系统管理员控制器
 *
 * @author fengshuonan
 * @Date 2017年1月11日 下午1:08:17
 */
@Controller
@RequestMapping("/mgr")
public class UserMgrController extends BaseController {

    private static String PREFIX = "/system/user/";

    @Autowired
    private GunsProperties gunsProperties;

    @Autowired
    private UserService userService;

    /**
     * 跳转到查看管理员列表的页面
     */
    @RequestMapping("")
    public String index() {
        return PREFIX + "user.html";
    }

    /**
     * 跳转到查看管理员列表的页面
     */
    @RequestMapping("/user_add")
    public String addView() {
        return PREFIX + "user_add.html";
    }

    /**
     * 跳转到角色分配页面
     */
    @Permission
    @RequestMapping("/role_assign")
    public String roleAssign(@RequestParam Long userId, Model model) {
        if (ToolUtil.isEmpty(userId)) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }
        User user = this.userService.selectOne(new EntityWrapper<User>().eq("USER_ID", userId));
        model.addAttribute("userId", userId);
        model.addAttribute("userAccount", user.getAccount());
        return PREFIX + "user_roleassign.html";
    }

    /**
     * 跳转到编辑管理员页面
     */
    @Permission
    @RequestMapping("/user_edit")
    public String userEdit(@RequestParam Long userId) {
        if (ToolUtil.isEmpty(userId)) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }
        User user = this.userService.selectById(userId);
        LogObjectHolder.me().set(user);
        return PREFIX + "user_edit.html";
    }

    /**
     * 跳转到查看用户详情页面
     */
    @RequestMapping("/user_info")
    public String userInfo(Model model) {
        Long userId = ShiroKit.getUser().getId();
        if (ToolUtil.isEmpty(userId)) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }
        User user = this.userService.selectById(userId);
        model.addAllAttributes(BeanUtil.beanToMap(user));
        model.addAttribute("roleName", ConstantFactory.me().getRoleName(user.getRoleId()));
        model.addAttribute("deptName", ConstantFactory.me().getDeptName(user.getDeptId()));
        LogObjectHolder.me().set(user);
        return PREFIX + "user_view.html";
    }

    /**
     * 跳转到修改密码界面
     */
    @RequestMapping("/user_chpwd")
    public String chPwd() {
        return PREFIX + "user_chpwd.html";
    }

    /**
     * 获取用户详情
     */
    @RequestMapping("/getUserInfo")
    @ResponseBody
    public Object getUserInfo(@RequestParam Long userId) {
        if (ToolUtil.isEmpty(userId)) {
            throw new RequestEmptyException();
        }
        assertAuth(userId);
        User user = this.userService.selectById(userId);
        Map<String, Object> map = UserFactory.removeUnSafeFields(user);

        HashMap<Object, Object> hashMap = CollectionUtil.newHashMap();
        hashMap.putAll(map);
        hashMap.put("roleName", ConstantFactory.me().getRoleName(user.getRoleId()));
        hashMap.put("deptName", ConstantFactory.me().getDeptName(user.getDeptId()));

        return ResponseData.success(hashMap);
    }

    /**
     * 修改当前用户的密码
     */
    @RequestMapping("/changePwd")
    @ResponseBody
    public Object changePwd(@RequestParam("oldPassword") String oldPassword, @RequestParam("newPassword") String newPassword) {
        if (ToolUtil.isOneEmpty(oldPassword, newPassword)) {
            throw new RequestEmptyException();
        }
        Long userId = ShiroKit.getUser().getId();
        User user = userService.selectById(userId);
        String oldMd5 = ShiroKit.md5(oldPassword, user.getSalt());
        if (user.getPassword().equals(oldMd5)) {
            String newMd5 = ShiroKit.md5(newPassword, user.getSalt());
            user.setPassword(newMd5);
            this.userService.updateById(user);
            return SUCCESS_TIP;
        } else {
            throw new ServiceException(BizExceptionEnum.OLD_PWD_NOT_RIGHT);
        }
    }

    /**
     * 查询管理员列表
     */
    @RequestMapping("/list")
    @Permission
    @ResponseBody
    public Object list(@RequestParam(required = false) String name,
                       @RequestParam(required = false) String timeLimit,
                       @RequestParam(required = false) Long deptId) {

        //拼接查询条件
        String beginTime = "";
        String endTime = "";

        if (ToolUtil.isNotEmpty(timeLimit)) {
            String[] split = timeLimit.split(" - ");
            beginTime = split[0];
            endTime = split[1];
        }

        if (ShiroKit.isAdmin()) {
            List<Map<String, Object>> users = userService.selectUsers(null, name, beginTime, endTime, deptId);
            return new UserWarpper(users).wrap();
        } else {
            DataScope dataScope = new DataScope(ShiroKit.getDeptDataScope());
            List<Map<String, Object>> users = userService.selectUsers(dataScope, name, beginTime, endTime, deptId);
            return new UserWarpper(users).wrap();
        }
    }

    /**
     * 添加管理员
     */
    @RequestMapping("/add")
    @BussinessLog(value = "添加管理员", key = "account", dict = UserDict.class)
    @Permission(Const.ADMIN_NAME)
    @ResponseBody
    public ResponseData add(@Valid UserDto user, BindingResult result) {
        if (result.hasErrors()) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }

        // 判断账号是否重复
        User theUser = userService.getByAccount(user.getAccount());
        if (theUser != null) {
            throw new ServiceException(BizExceptionEnum.USER_ALREADY_REG);
        }

        // 完善账号信息
        String salt = ShiroKit.getRandomSalt(5);
        String password = ShiroKit.md5(user.getPassword(), salt);

        this.userService.insert(UserFactory.createUser(user, password, salt));
        return SUCCESS_TIP;
    }

    /**
     * 修改管理员
     */
    @RequestMapping("/edit")
    @BussinessLog(value = "修改管理员", key = "account", dict = UserDict.class)
    @ResponseBody
    public ResponseData edit(@Valid UserDto user, BindingResult result) {
        if (result.hasErrors()) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }

        User oldUser = userService.selectById(user.getUserId());

        if (ShiroKit.hasRole(Const.ADMIN_NAME)) {
            this.userService.updateById(UserFactory.editUser(user, oldUser));
            return SUCCESS_TIP;
        } else {
            assertAuth(user.getUserId());
            ShiroUser shiroUser = ShiroKit.getUser();
            if (shiroUser.getId().equals(user.getUserId())) {
                this.userService.updateById(UserFactory.editUser(user, oldUser));
                return SUCCESS_TIP;
            } else {
                throw new ServiceException(BizExceptionEnum.NO_PERMITION);
            }
        }
    }

    /**
     * 删除管理员（逻辑删除）
     */
    @RequestMapping("/delete")
    @BussinessLog(value = "删除管理员", key = "userId", dict = UserDict.class)
    @Permission
    @ResponseBody
    public ResponseData delete(@RequestParam Long userId) {
        if (ToolUtil.isEmpty(userId)) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }
        //不能删除超级管理员
        if (userId.equals(Const.ADMIN_ID)) {
            throw new ServiceException(BizExceptionEnum.CANT_DELETE_ADMIN);
        }
        assertAuth(userId);
        this.userService.setStatus(userId, ManagerStatus.DELETED.getCode());
        return SUCCESS_TIP;
    }

    /**
     * 查看管理员详情
     */
    @RequestMapping("/view/{userId}")
    @ResponseBody
    public User view(@PathVariable Long userId) {
        if (ToolUtil.isEmpty(userId)) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }
        assertAuth(userId);
        return this.userService.selectById(userId);
    }

    /**
     * 重置管理员的密码
     */
    @RequestMapping("/reset")
    @BussinessLog(value = "重置管理员密码", key = "userId", dict = UserDict.class)
    @Permission(Const.ADMIN_NAME)
    @ResponseBody
    public ResponseData reset(@RequestParam Long userId) {
        if (ToolUtil.isEmpty(userId)) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }
        assertAuth(userId);
        User user = this.userService.selectById(userId);
        user.setSalt(ShiroKit.getRandomSalt(5));
        user.setPassword(ShiroKit.md5(Const.DEFAULT_PWD, user.getSalt()));
        this.userService.updateById(user);
        return SUCCESS_TIP;
    }

    /**
     * 冻结用户
     */
    @RequestMapping("/freeze")
    @BussinessLog(value = "冻结用户", key = "userId", dict = UserDict.class)
    @Permission(Const.ADMIN_NAME)
    @ResponseBody
    public ResponseData freeze(@RequestParam Long userId) {
        if (ToolUtil.isEmpty(userId)) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }
        //不能冻结超级管理员
        if (userId.equals(Const.ADMIN_ID)) {
            throw new ServiceException(BizExceptionEnum.CANT_FREEZE_ADMIN);
        }
        assertAuth(userId);
        this.userService.setStatus(userId, ManagerStatus.FREEZED.getCode());
        return SUCCESS_TIP;
    }

    /**
     * 解除冻结用户
     */
    @RequestMapping("/unfreeze")
    @BussinessLog(value = "解除冻结用户", key = "userId", dict = UserDict.class)
    @Permission(Const.ADMIN_NAME)
    @ResponseBody
    public ResponseData unfreeze(@RequestParam Long userId) {
        if (ToolUtil.isEmpty(userId)) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }
        assertAuth(userId);
        this.userService.setStatus(userId, ManagerStatus.OK.getCode());
        return SUCCESS_TIP;
    }

    /**
     * 分配角色
     */
    @RequestMapping("/setRole")
    @BussinessLog(value = "分配角色", key = "userId,roleIds", dict = UserDict.class)
    @Permission(Const.ADMIN_NAME)
    @ResponseBody
    public ResponseData setRole(@RequestParam("userId") Long userId, @RequestParam("roleIds") String roleIds) {
        if (ToolUtil.isOneEmpty(userId, roleIds)) {
            throw new ServiceException(BizExceptionEnum.REQUEST_NULL);
        }
        //不能修改超级管理员
        if (userId.equals(Const.ADMIN_ID)) {
            throw new ServiceException(BizExceptionEnum.CANT_CHANGE_ADMIN);
        }
        assertAuth(userId);
        this.userService.setRoles(userId, roleIds);
        return SUCCESS_TIP;
    }

    /**
     * 上传图片
     */
    @RequestMapping(method = RequestMethod.POST, path = "/upload")
    @ResponseBody
    public String upload(@RequestPart("file") MultipartFile picture) {

        String pictureName = UUID.randomUUID().toString() + "." + ToolUtil.getFileSuffix(picture.getOriginalFilename());
        try {
            String fileSavePath = gunsProperties.getFileUploadPath();
            picture.transferTo(new File(fileSavePath + pictureName));
        } catch (Exception e) {
            throw new ServiceException(BizExceptionEnum.UPLOAD_ERROR);
        }
        return pictureName;
    }

    /**
     * 判断当前登录的用户是否有操作这个用户的权限
     */
    private void assertAuth(Long userId) {
        if (ShiroKit.isAdmin()) {
            return;
        }
        List<Long> deptDataScope = ShiroKit.getDeptDataScope();
        User user = this.userService.selectById(userId);
        Long deptId = user.getDeptId();
        if (deptDataScope.contains(deptId)) {
            return;
        } else {
            throw new ServiceException(BizExceptionEnum.NO_PERMITION);
        }

    }
}
