package com.wgcloud.controller;

import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.github.pagehelper.PageInfo;
import com.wgcloud.config.CommonConfig;
import com.wgcloud.entity.AccountInfo;
import com.wgcloud.entity.SnmpInfo;
import com.wgcloud.entity.SnmpState;
import com.wgcloud.service.*;
import com.wgcloud.util.*;
import com.wgcloud.util.staticvar.StaticKeys;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.snmp4j.mp.SnmpConstants;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @version v3.3
 * @ClassName:SnmpInfoController.java
 * @author: http://www.wgstart.com
 * @date: 2022年4月10日
 * @Description: snmp设备监测
 * @Copyright: 2019-2021 wgcloud. All rights reserved.
 */
@Controller
@RequestMapping("/snmpInfo")
public class SnmpInfoController {


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

    @Resource
    private SnmpInfoService snmpInfoService;
    @Resource
    private SnmpStateService snmpStateService;
    @Resource
    private LogInfoService logInfoService;
    @Resource
    private DashboardService dashboardService;
    @Resource
    private ExcelExportService excelExportService;
    @Autowired
    private TokenUtils tokenUtils;
    @Autowired
    private CommonConfig commonConfig;

    /**
     * agent查询监控snmp设备监测列表
     *
     * @return
     */
    @ResponseBody
    @RequestMapping(value = "agentList")
    public String agentList(@RequestBody String paramBean) {
        JSONObject agentJsonObject = (JSONObject) JSONUtil.parse(paramBean);
        if (!tokenUtils.checkAgentToken(agentJsonObject)) {
            logger.error(StaticKeys.TOKEN_ERROR);
            return ResDataUtils.resetErrorJson(StaticKeys.TOKEN_ERROR);
        }
        Map<String, Object> params = new HashMap<String, Object>();
        try {
            if (null != agentJsonObject.get("snmpHostNames") && !StringUtils.isEmpty(agentJsonObject.get("snmpHostNames").toString())) {
                params.put("snmpHostNames", agentJsonObject.get("snmpHostNames").toString().split(","));
            }
            params.put("active", StaticKeys.ON_STATE);
            List<SnmpInfo> snmpInfoList = snmpInfoService.selectAllByParams(params);
            //将server-backup节点处理的SNMP设备ID，标记起来，server节点就不监控这些SNMP设备了
            ServerBackupUtil.cacheSaveSnmpInfoId(snmpInfoList);
            return ResDataUtils.resetSuccessJson(snmpInfoList);
        } catch (Exception e) {
            logger.error("agent获取snmp设备监测信息错误", e);
            logInfoService.save("agent获取snmp设备监测信息错误", e.toString(), StaticKeys.LOG_XTCZ);
            return ResDataUtils.resetErrorJson(e.toString());
        }
    }

    /**
     * 根据条件查询snmp设备监测信息列表
     *
     * @param model
     * @param request
     * @return
     */
    @RequestMapping(value = "list")
    public String snmpInfoList(SnmpInfo SnmpInfo, Model model, HttpServletRequest request) {
        Map<String, Object> params = new HashMap<String, Object>();
        try {

            StringBuffer url = new StringBuffer();
            String hostName = null;
            if (!StringUtils.isEmpty(SnmpInfo.getHostname())) {
                hostName = SnmpInfo.getHostname();
                params.put("hostname", hostName.trim());
                url.append("&hostname=").append(hostName);
            }
            if (!StringUtils.isEmpty(SnmpInfo.getAccount())) {
                params.put("account", SnmpInfo.getAccount());
                url.append("&account=").append(SnmpInfo.getAccount());
            }
            if (!StringUtils.isEmpty(SnmpInfo.getOrderBy())) {
                params.put("orderBy", SnmpInfo.getOrderBy());
                params.put("orderType", SnmpInfo.getOrderType());
                url.append("&orderBy=").append(SnmpInfo.getOrderBy());
                url.append("&orderType=").append(SnmpInfo.getOrderType());
            }
            if (!StringUtils.isEmpty(SnmpInfo.getState())) {
                params.put("state", SnmpInfo.getState());
                url.append("&state=").append(SnmpInfo.getState());
            }

            //校验是否需要添加过滤用户查询条件
            HostUtil.addAccountquery(request, params);

            PageInfo<SnmpInfo> pageInfo = snmpInfoService.selectByParams(params, SnmpInfo.getPage(), SnmpInfo.getPageSize());
            //设置累积告警次数 begin
            Map<String, Object> paramsLogInfo = new HashMap<String, Object>();
            for (SnmpInfo snmpInfoTmp : pageInfo.getList()) {
                if (StaticKeys.TRUE_VAL.equals(commonConfig.getShowWarnCount())) {
                    String warnQueryWd = "snmp设备监测告警：" + snmpInfoTmp.getHostname();
                    paramsLogInfo.clear();
                    paramsLogInfo.put("hostname", warnQueryWd);
                    snmpInfoTmp.setWarnCount(logInfoService.countByParams(paramsLogInfo));
                    snmpInfoTmp.setWarnQueryWd(warnQueryWd);
                }
                //格式化流量显示单位
                snmpInfoTmp.setBytesRecv(FormatUtil.bytesFormatUnit(snmpInfoTmp.getBytesRecv(), snmpInfoTmp.getSnmpUnit()));
                snmpInfoTmp.setBytesSent(FormatUtil.bytesFormatUnit(snmpInfoTmp.getBytesSent(), snmpInfoTmp.getSnmpUnit()));
                snmpInfoTmp.setRecvAvg(FormatUtil.byteToM(snmpInfoTmp.getRecvAvg(), snmpInfoTmp.getSnmpUnit()) + "/s");
                snmpInfoTmp.setSentAvg(FormatUtil.byteToM(snmpInfoTmp.getSentAvg(), snmpInfoTmp.getSnmpUnit()) + "/s");
                if (StringUtils.isEmpty(snmpInfoTmp.getCpuPerOID())) {
                    snmpInfoTmp.setCpuPer(StaticKeys.NAN_FLAG);
                }
                if (StringUtils.isEmpty(snmpInfoTmp.getMemSizeOID()) || StringUtils.isEmpty(snmpInfoTmp.getMemTotalSizeOID())) {
                    snmpInfoTmp.setMemPer(StaticKeys.NAN_FLAG);
                }
            }
            //设置累积告警次数 end

            PageUtil.initPageNumber(pageInfo, model);

            //设置用户列表
            HostUtil.addAccountListModel(model);

            model.addAttribute("pageUrl", "/snmpInfo/list?1=1" + url.toString());
            model.addAttribute("page", pageInfo);
            model.addAttribute("snmpInfo", SnmpInfo);
        } catch (Exception e) {
            logger.error("查询snmp设备监测错误", e);
            logInfoService.save("查询snmp设备监测错误", e.toString(), StaticKeys.LOG_XTCZ);
        }
        return "snmp/list";
    }


    /**
     * 保存snmp设备信息
     *
     * @param SnmpInfo
     * @param model
     * @param request
     * @return
     */
    @RequestMapping(value = "save")
    public String saveSnmpInfo(SnmpInfo SnmpInfo, Model model, HttpServletRequest request) {
        String errorMsg = "保存snmp设备监测错误";
        try {
            if (StringUtils.isEmpty(SnmpInfo.getId())) {
                AccountInfo accountInfo = HostUtil.getAccountByRequest(request);
                if (null != accountInfo) {
                    if (!StaticKeys.ROLE_ADMIN.equals(accountInfo.getRole())) {
                        SnmpInfo.setAccount(accountInfo.getAccount());
                    }
                }
                snmpInfoService.save(SnmpInfo);
                snmpInfoService.saveLog(request, StaticKeys.LOG_ADD, SnmpInfo);
            } else {
                snmpInfoService.updateById(SnmpInfo);
                snmpInfoService.saveLog(request, StaticKeys.LOG_UPDATE, SnmpInfo);
            }

        } catch (Exception e) {
            logger.error(errorMsg, e);
            logInfoService.save(errorMsg, e.toString(), StaticKeys.LOG_XTCZ);
        }
        return "redirect:/snmpInfo/list";
    }


    /**
     * 查看该snmp设备
     *
     * @param SnmpInfo
     * @param model
     * @param request
     * @return
     */
    @RequestMapping(value = "edit")
    public String edit(Model model, HttpServletRequest request) {
        String errorMsg = "编辑snmp设备监测";
        String id = request.getParameter("id");
        SnmpInfo SnmpInfo = new SnmpInfo();
        try {
            if (StringUtils.isEmpty(id)) {
                //添加页面默认值，snmp端口为161，团体名称为public
                SnmpInfo.setSnmpPort("161");
                SnmpInfo.setSnmpCommunity("public");
                SnmpInfo.setSnmpVersion(SnmpConstants.version2c + "");
                model.addAttribute("snmpInfo", SnmpInfo);

                return "snmp/add";
            }

            SnmpInfo = snmpInfoService.selectById(id);
            model.addAttribute("snmpInfo", SnmpInfo);
        } catch (Exception e) {
            logger.error(errorMsg, e);
            logInfoService.save(errorMsg, e.toString(), StaticKeys.LOG_XTCZ);
        }
        return "snmp/add";
    }

    /**
     * 查看该snmp设备
     *
     * @param SnmpInfo
     * @param model
     * @param request
     * @return
     */
    @RequestMapping(value = "view")
    public String view(Model model, HttpServletRequest request) {
        String errorMsg = "查看snmp设备图表错误";
        String id = request.getParameter("id");
        String startTime = request.getParameter(StaticKeys.SEARCH_START_TIME);
        String endTime = request.getParameter(StaticKeys.SEARCH_END_TIME);
        String am = request.getParameter("am");
        SnmpInfo SnmpInfo = new SnmpInfo();
        try {
            SnmpInfo = snmpInfoService.selectById(id);
            Map<String, Object> params = new HashMap<String, Object>();
            model.addAttribute("snmpInfo", SnmpInfo);
            dashboardService.setDateParam(am, startTime, endTime, params, model);
            model.addAttribute("amList", dashboardService.getAmList());
            params.put("snmpInfoId", SnmpInfo.getId());
            List<SnmpState> snmpStateList = snmpStateService.selectAllByParams(params);
            //设置图表的副标题，进出口流量的最高、平均、最低值，并把进出口流量单位转为MB
            snmpStateService.setSubtitle(model, snmpStateList, SnmpInfo);
            model.addAttribute("snmpStateList", JSONUtil.parseArray(snmpStateList));
        } catch (Exception e) {
            logger.error(errorMsg, e);
            logInfoService.save(errorMsg, e.toString(), StaticKeys.LOG_XTCZ);
        }
        return "snmp/view";
    }

    /**
     * 查看该snmp设备统计图导出excel
     *
     * @param model
     * @param request
     * @return
     */
    @RequestMapping(value = "chartExcel")
    public void chartExcel(Model model, HttpServletRequest request, HttpServletResponse response) {
        String errorMsg = "snmp设备统计图导出excel错误";
        String id = request.getParameter("id");
        String startTime = request.getParameter(StaticKeys.SEARCH_START_TIME);
        String endTime = request.getParameter(StaticKeys.SEARCH_END_TIME);
        String am = request.getParameter("am");
        try {
            if (StringUtils.isEmpty(id)) {
                response.setContentType("text/html;charset=UTF-8");
                response.getOutputStream().write(StaticKeys.EXCEL_PARAM_ERROR.getBytes());
                return;
            }
            Map<String, Object> params = new HashMap<String, Object>();
            params.put("snmpInfoId", id);
            dashboardService.setDateParam(am, startTime, endTime, params, model);
            excelExportService.exportSnmpExcel(params, response);
        } catch (Exception e) {
            logger.error(errorMsg, e);
            logInfoService.save(errorMsg, e.toString(), StaticKeys.LOG_XTCZ);
        }
    }


    /**
     * 删除snmp设备
     *
     * @param id
     * @param model
     * @param request
     * @param redirectAttributes
     * @return
     */
    @RequestMapping(value = "del")
    public String delete(Model model, HttpServletRequest request, RedirectAttributes redirectAttributes) {
        String errorMsg = "删除snmp设备监测错误";
        SnmpInfo SnmpInfo = new SnmpInfo();
        try {
            if (!StringUtils.isEmpty(request.getParameter("id"))) {
                String[] ids = request.getParameter("id").split(",");
                for (String id : ids) {
                    SnmpInfo = snmpInfoService.selectById(id);
                    snmpInfoService.saveLog(request, StaticKeys.LOG_DEL, SnmpInfo);
                }
                snmpInfoService.deleteById(ids);
            }
        } catch (Exception e) {
            logger.error(errorMsg, e);
            logInfoService.save(errorMsg, e.toString(), StaticKeys.LOG_XTCZ);
        }
        return "redirect:/snmpInfo/list";
    }

}