package com.fzu.studyroombackend.controller.backend;

import cn.hutool.core.util.ObjectUtil;
import com.fzu.studyroombackend.common.Result;
import com.fzu.studyroombackend.service.InvolutionUserService;
import com.fzu.studyroombackend.utils.RedisUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.util.*;

/**
 * <p>
 * 后台数据概览接口
 * </p>
 *
 * @author 詹鹏翔
 * @since 2022/5/19 4:52
 */
@RequestMapping("/backend/data")
@Slf4j
@RestController
public class DataController {
    @Autowired
    RedisUtils redisUtils;
    @Autowired
    InvolutionUserService userService;
    
    /**
     * @param request
     * @return com.fzu.studyroombackend.common.Result
     * @author 詹鹏翔
     * @description 获取在线人数接口
     * @since 2022/5/19 5:22
     */
    @GetMapping("/getOnlineNum")
    Result getOnlineNum(HttpServletRequest request) {
        if (!request.getMethod().equals("GET")) {
            return Result.fail("请以GET请求");
        }
        //判断有无权限
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        Collection set = authentication.getAuthorities();
        if (ObjectUtil.isNull(set) || set.size() == 0) {
            return Result.fail("无权限!");
        }
        
        Map<String, Object> result = new HashMap<>();
        Set<String> keys = redisUtils.keys("sys:user:" + "*");
        int totalNum = 0;
        int onlineNum = 0;
        totalNum = userService.count();
        if (ObjectUtil.isNotNull(keys)) {
            onlineNum = keys.size();
        }
        result.put("totalNum", totalNum);
        result.put("onlineNum", onlineNum);
        return Result.success(result);
    }
    
    
    /**
     * @param request
     * @return com.fzu.studyroombackend.common.Result
     * @author 詹鹏翔
     * @description 统计app访问量接口
     * @since 2022/5/19 5:03
     */
    @GetMapping("/getVisitsNum")
    Result getVisitsNum(HttpServletRequest request) {
        if (!request.getMethod().equals("GET")) {
            return Result.fail("请以GET请求");
        }
        //判断有无权限
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        Collection set = authentication.getAuthorities();
        if (ObjectUtil.isNull(set) || set.size() == 0) {
            return Result.fail("无权限!");
        }
        Map<String, Object> result = new HashMap<>();
        int num = 0;
        if (redisUtils.hasKey("sys:visit")) {
            num = (int) redisUtils.get("sys:visit");
        }
        result.put("visitsNum", num);
        return Result.success(result);
    }
    
    
    /**
     * @param request
     * @return com.fzu.studyroombackend.common.Result
     * @author 詹鹏翔
     * @description 获取在线对战数据接口
     * @since 2022/5/19 5:32
     */
    @GetMapping("/getStudyOnlineData")
    Result getStudyOnlineData(HttpServletRequest request) {
        if (!request.getMethod().equals("GET")) {
            return Result.fail("请以GET请求");
        }
        //判断有无权限
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        Collection set = authentication.getAuthorities();
        if (ObjectUtil.isNull(set) || set.size() == 0) {
            return Result.fail("无权限! ");
        }
        Map<String, Object> result = new HashMap<>();
        Set<String> areaKeys = redisUtils.keys("sys:area:" + "*");
        Set<String> pkKeys = redisUtils.keys("sys:pk:" + "*");
        int curPKNum = 0;
        int curAreaNum = 0;
        
        if (ObjectUtil.isNotNull(pkKeys)) {
            curPKNum = pkKeys.size();
        }
        
        if (ObjectUtil.isNotNull(areaKeys)) {
            curAreaNum = areaKeys.size();
        }
        
        result.put("curPKNum", curPKNum);
        result.put("curAreaNum", curAreaNum);
        return Result.success(result);
    }
    
}