package service

import (
	sysModels "go-admin/app/admin/models"
	"go-admin/app/observe/models"
	"go-admin/app/observe/service/dto"
	"go-admin/utils"
	"time"

	"github.com/go-admin-team/go-admin-core/sdk/config"
)

const TOTALSTATSKEY = "ob_total_stats"

type Stats struct {
	utils.OtService
}

func (s *Stats) SetTotalStats(result *map[string]interface{}) error {
	//TODO: 分别设定为统计接口，使用定时调度控制统计频率
	var err error
	if err = s.GetStatsInOrm(result); err != nil {
		return err
	}
	if err = s.SetCache(TOTALSTATSKEY, result); err != nil {
		return err
	}
	return nil
}

func (s *Stats) GetTotalStats(result *map[string]interface{}) error {
	if err := s.GetCache(TOTALSTATSKEY, result); err != nil {
		return s.SetTotalStats(result)
	}
	return nil
}

func (s *Stats) GetStatsInOrm(result *map[string]interface{}) error {
	var totalTraces int64
	var totalLogs int64
	var totalUser int64
	var totalService int64
	var err error

	if err = s.ChOrm.Table(models.TableNameTrace).Count(&totalTraces).Error; err != nil {
		s.Log.Error("Statistic total traces error: ", err.Error)
		return err
	}

	if err = s.ChOrm.Table(models.TableNameTraceLog).Count(&totalLogs).Error; err != nil {
		s.Log.Error("Statistic total trace_logs error: ", err.Error)
		return err
	}

	var _ss sysModels.SysUser
	if err = s.Orm.Table(_ss.TableName()).Count(&totalUser).Error; err != nil {
		s.Log.Error("Statistic total users error: ", err.Error)
		return err
	}

	if err = s.Orm.Table(models.TableNameServiceNode).Count(&totalService).Error; err != nil {
		s.Log.Error("Statistic total services error: ", err.Error)
		return err
	}

	(*result)["traces"] = totalTraces
	(*result)["logs"] = totalLogs
	(*result)["users"] = totalUser
	(*result)["services"] = totalService
	(*result)["uptime"] = time.Now().Unix()
	return nil
}

func (s *Stats) SetCache(k string, result *map[string]interface{}) error {
	if err := config.GetRedisClient().HMSet(k, *result).Err(); err != nil {
		s.Log.Errorf("hset %s err: %v", k, err)
		return err
	}
	return nil
}

func (s *Stats) GetCache(k string, result *map[string]interface{}) error {
	r, err := config.GetRedisClient().HGetAll(k).Result()
	if err != nil {
		s.Log.Errorf("hget %s err: %v", k, err)
		return err
	}
	for ks, v := range r {
		(*result)[ks] = v
	}
	return nil
}

func (s *Stats) GetApdexModelByAppAlias(c *dto.ApdexHandlerReq, result *map[string]interface{}) error {
	var err error
	defaultR := map[string]string{
		"csat_a": "1",   //满意样本，csat通常在问卷调查中表达满意度
		"csat_b": "2.5", //容忍样本
		"csat_c": "5",   //无法容忍
		// "equation": "Apdex = (1 x 【小于1秒的请求数】 + 0.5 x 【大于1秒小于2.5秒的请求数】) / 【总请求数】"
	}
	rkey := "apdex_model_" + c.Appalias
	exist, err := config.GetRedisClient().Exists(rkey).Result()
	if err != nil {
		return err
	}
	if exist == 1 {
		r, err := config.GetRedisClient().HGetAll(rkey).Result()
		if err != nil {
			s.Log.Errorf("hgetall %s err: %v", rkey, err)
			return err
		}
		for ks, v := range r {
			(*result)[ks] = v
		}
	} else {
		for ks, v := range defaultR {
			(*result)[ks] = v
		}
	}
	return nil
}

func (s *Stats) SetApdexModelByAppAlias(c *dto.ApdexUpdateReq, result *map[string]interface{}) error {
	rkey := "apdex_model_" + c.Appalias
	if err := config.GetRedisClient().HSet(
		rkey,
		"csat_a", c.CsatA,
		"csat_b", c.CsatB,
		"csat_c", c.CsatC).Err(); err != nil {
		s.Log.Errorf("hset %s err: %v", rkey, err)
		return err
	}
	return nil
}