package logic

import (
	"git.rtzhtech.cn/iss/public-lib/dao"
	"git.rtzhtech.cn/iss/public-lib/dto"
	"git.rtzhtech.cn/iss/public-lib/model"
	"git.rtzhtech.cn/iss/public-lib/svc"
	"github.com/gogf/gf/v2/util/gconv"
	"gorm.io/gen/field"
)

type AlarmStrategyLogic struct {
	SvcCtx *svc.ServiceContext
}

// NewAlarmStrategyLogic
// @Description: 告警策略
// @return *AlarmStrategyLogic
func NewAlarmStrategyLogic() *AlarmStrategyLogic {
	return &AlarmStrategyLogic{
		SvcCtx: svc.SvcCtx,
	}
}

// AddAlarmStrategy
// @Description: 添加
// @receiver l
// @param in
// @return error
func (l *AlarmStrategyLogic) AddAlarmStrategy(in *dto.AddAlarmStrategyRes) error {
	in.ID = 0
	err := l.SvcCtx.AlarmStrategy.Create(&in.AlarmStrategy)
	if err != nil {
		return err
	}

	return l.addRelation(in)
}

func (l *AlarmStrategyLogic) addRelation(in *dto.AddAlarmStrategyRes) error {
	for i := 0; i < len(in.Relation); i++ {
		in.Relation[i].ID = 0
		in.Relation[i].Strategyid = in.Strategyid
	}
	err := l.SvcCtx.AlarmRelation.CreateInBatches(in.Relation, len(in.Relation))
	return err
}

// DelAlarmStrategy
// @Description: 删除
// @receiver l
// @param id 策略id
// @return error
func (l *AlarmStrategyLogic) DelAlarmStrategy(strategyId int64) error {
	do := l.SvcCtx.AlarmStrategy
	_, err := do.Where(do.Strategyid.Eq(strategyId)).Delete()
	if err != nil {
		return err
	}

	return l.delRelation(strategyId)
}

func (l *AlarmStrategyLogic) delRelation(strategyId int64) error {
	_, err := l.SvcCtx.AlarmRelation.Where(l.SvcCtx.AlarmRelation.Strategyid.Eq(strategyId)).Delete()
	return err
}

// ModifyAlarmStrategy
// @Description: 修改
// @receiver l
// @param in
// @param fields 更新字段，当field为null时，更新in的全部字段
// @return error
func (l *AlarmStrategyLogic) ModifyAlarmStrategy(in *dto.AddAlarmStrategyRes, fields ...string) error {
	do := l.SvcCtx.AlarmStrategy
	var err error

	_do := do.Omit(do.ID).Where(do.Strategyid.Eq(in.Strategyid))
	if fields == nil {
		m := gconv.Map(in.AlarmStrategy)
		_, err = _do.Updates(m)
	} else {
		var fieldList []field.Expr
		for _, v := range fields {
			_f, ok := do.GetFieldByName(v)
			if ok {
				fieldList = append(fieldList, _f)
			}
		}
		_, err = _do.Select(fieldList...).Updates(in.AlarmStrategy)
	}
	if err != nil {
		return err
	}

	err = l.delRelation(in.Strategyid)
	if err != nil {
		return err
	}
	err = l.addRelation(in)
	return err
}

func (l *AlarmStrategyLogic) getAlarmStrategyCond(req *dto.GetAlarmStrategyReq) *dao.Condition {
	_dao := l.SvcCtx.AlarmStrategy
	cond := NewCondition(&req.LimitPage)

	if req.AppId > 0 {
		cond.Where[_dao.Appid.String()] = req.AppId
	}
	if req.StrategyName != "" {
		cond.Where[_dao.Strategyname.String()+" like ?"] = "%" + req.StrategyName + "%"
	}
	if req.AlarmLevel > 0 {
		cond.Where[_dao.Alarmlevel.String()] = req.AlarmLevel
	}

	return cond
}

// GetAlarmStrategy
// @Description: 分页查询
// @receiver l
// @param where 查询条件
// @param page
// @param limit
// @return []*model.AlarmStrategy
// @return error
func (l *AlarmStrategyLogic) GetAlarmStrategy(req *dto.GetAlarmStrategyReq) (*dto.GetAlarmStrategyResp, error) {
	strategy := l.SvcCtx.AlarmStrategy
	relation := l.SvcCtx.AlarmRelation

	var out dto.GetAlarmStrategyResp
	var alarmStrategyList []*model.AlarmStrategy

	cond := l.getAlarmStrategyCond(req)

	err := strategy.Base.Find(cond, &alarmStrategyList)
	if err != nil {
		return nil, err
	}
	err = strategy.Base.Count(cond, &out.Total)
	if err != nil {
		return nil, err
	}
	for _, v := range alarmStrategyList {
		o := &dto.AlarmStrategyDto{}
		o.AlarmStrategy = *v
		o.Relation, err = relation.Where(relation.Strategyid.Eq(v.Strategyid)).Find()
		if err != nil {
			return nil, err
		}
		out.List = append(out.List, o)
	}
	return &out, err
}

// GetAlarmStrategyCount
// @Description:查询满足条件的总数
// @receiver l
// @param where 查询条件
// @return int64
// @return error
func (l *AlarmStrategyLogic) GetAlarmStrategyCount(req *dto.GetAlarmStrategyReq) (int64, error) {
	cond := l.getAlarmStrategyCond(req)
	var count int64
	err := l.SvcCtx.AlarmStrategy.Base.Count(cond, &count)
	if err != nil {
		return 0, err
	}
	return count, err
}