package com.yunzhi.demo.controller;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.yunzhi.demo.common.BaseController;
import com.yunzhi.demo.common.Constants;
import com.yunzhi.demo.common.ResponseBean;
import com.yunzhi.demo.common.StringUtils;
import com.yunzhi.demo.entity.*;
import com.yunzhi.demo.service.ISysMenuService;
import com.yunzhi.demo.service.ISysUserRoleService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import com.yunzhi.demo.service.ISysRoleService;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.List;

/**
 * <p>
    * 角色 前端控制器
    * </p>
 *
 * @author yansen
 * @since 2021-04-15
 */

@Api(tags = "角色")
@RestController
@RequestMapping("/")
public class SysRoleController extends BaseController {

    private final Logger logger = LoggerFactory.getLogger(SysRoleController.class);

    @Autowired
    ISysRoleService iSysRoleService;

    @Autowired
    ISysUserRoleService iSysUserRoleService;

    @Autowired
    ISysMenuService iSysMenuService;

    /**
     * 分页查询列表
     * @param pageNum
     * @param pageSize
     * @return
     */
    @RequestMapping(value="/admin/role",method= RequestMethod.GET)
    @ApiOperation(value="列表", notes = "列表", httpMethod = "GET", response = ResponseBean.class)
    public ResponseBean sysRoleList(@ApiParam("页码") @RequestParam(value ="pageNum",defaultValue = "1") Integer pageNum,
                                    @ApiParam("单页数据量") @RequestParam(value ="pageSize",defaultValue = "10") Integer pageSize) throws Exception{
        SysUser sysUser = getCurrentUser();
        boolean isSuperAdmin = Constants.SUPER_ADMIN_ID.equals(sysUser.getUserId());

        // 非管理员, 只能看到自己授权的角色
        List<Integer> roleIds = new ArrayList<>();
        if (!isSuperAdmin) {
            List<SysUserRole> userRoleList = iSysUserRoleService.getListByUser(sysUser.getUserId());
            if (userRoleList != null) {
                for (SysUserRole userRole : userRoleList) {
                    roleIds.add(userRole.getRoleId());
                }
            }
            if (roleIds.size() == 0) {
                // 设置一个不存在的 id, 目的是为了让 sql 查询不到数据
                roleIds.add(-1);
            }
        }

        IPage<SysRole> pg = new Page<>(pageNum, pageSize);
        QueryWrapper<SysRole> queryWrapper = new QueryWrapper<>();
        queryWrapper.in(!isSuperAdmin, "role_id", roleIds);
        queryWrapper.gt("role_id", Constants.SUPER_ADMIN_ROLE);
        queryWrapper.gt("status", Constants.STATUS_DELETED);
        queryWrapper.orderByAsc("sort_no");
        queryWrapper.orderByDesc("create_date");

        IPage<SysRole> result = iSysRoleService.page(pg, queryWrapper);
        return ResponseBean.success(result);
    }

    /**
     * 保存对象
     * @param sysRole 实体对象
     * @return
     */
    @RequestMapping(value="/admin/role",method= RequestMethod.POST)
    @ApiOperation(value="保存", notes = "保存", httpMethod = "POST", response = ResponseBean.class)
    public ResponseBean sysRoleAdd(@ApiParam("保存内容") @RequestBody SysRole sysRole) throws Exception{
        if (StringUtils.isEmpty(sysRole.getName())) {
            throw new Exception("角色名称不能为空");
        }

        if (iSysRoleService.save(sysRole)){
            return ResponseBean.success(sysRole);
        }else {
            return ResponseBean.error("保存失败, 请重试", ResponseBean.ERROR_UNAVAILABLE);
        }
    }

    /**
     * 根据id删除对象
     * @param id  实体ID
     */
    @RequestMapping(value="/admin/role/{id}", method= RequestMethod.DELETE)
    @ApiOperation(value="删除", notes = "删除", httpMethod = "DELETE", response = ResponseBean.class)
    public ResponseBean sysRoleDelete(@ApiParam("对象ID") @PathVariable Integer id) throws Exception{
        SysRole sysRole = iSysRoleService.getById(id);
        if (null == sysRole || Constants.STATUS_DELETED.equals(sysRole.getStatus())) {
            return ResponseBean.success("success");
        }

        sysRole.setStatus(Constants.STATUS_DELETED);

        if(iSysRoleService.updateById(sysRole)){
            return ResponseBean.success("success");
        }else {
            return ResponseBean.error("删除失败, 请重试", ResponseBean.ERROR_UNAVAILABLE);
        }
    }

    /**
     * 修改对象
     * @param id  实体ID
     * @param sysRole 实体对象
     * @return
     */
    @RequestMapping(value="/admin/role/{id}",method= RequestMethod.PUT)
    @ApiOperation(value="更新", notes = "更新", httpMethod = "PUT", response = ResponseBean.class)
    public ResponseBean sysRoleUpdate(@ApiParam("对象ID") @PathVariable Integer id,
                                      @ApiParam("更新内容") @RequestBody SysRole sysRole) throws Exception{
        if (StringUtils.isEmpty(sysRole.getName())) {
            throw new Exception("角色名称不能为空");
        }

        if (!id.equals(sysRole.getRoleId())) {
            throw new Exception("校验角色信息失败");
        }

        if (iSysRoleService.updateById(sysRole)){
            return ResponseBean.success(iSysRoleService.getById(id));
        }else {
            return ResponseBean.error("修改失败, 请重试", ResponseBean.ERROR_UNAVAILABLE);
        }
    }

    /**
     * 根据id查询对象
     * @param id  实体ID
     */
    @RequestMapping(value="/admin/role/{id}",method= RequestMethod.GET)
    @ApiOperation(value="查询角色信息", notes = "详情", httpMethod = "GET", response = ResponseBean.class)
    public ResponseBean sysRoleGet(@ApiParam("对象ID") @PathVariable Integer id) throws Exception{
        SysRole sysRole = iSysRoleService.getById(id);
        if (null == sysRole || Constants.STATUS_DELETED.equals(sysRole.getStatus())) {
            throw new Exception("未找到指定的角色信息");
        }

        List<SysMenu> menuList = iSysMenuService.getListByRole(id);
        if (null != menuList) {
            sysRole.setMenuList(menuList);
        }

        return ResponseBean.success(sysRole);
    }
}