package cfg

import (
	"context"
	"videoweb/pub/common/log"
	"videoweb/pub/common/srvdef"
	"videoweb/pub/mongos"

	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/mongo"
)

// Init 初始化数据
func Init(ctx context.Context) {
	sysCfgColl = mongos.Shop.Coll(TN.SysCfg)
}

// FindOneSysCfg 查找一个系统配置
func FindOneSysCfg(ctx context.Context, filter bson.M) (
	*SysCfg, *srvdef.SrvErr) {
	var sysCfg SysCfg
	if err := sysCfgColl.FindOneEx(
		ctx, &sysCfg, filter); err != nil {
		if err != mongo.ErrNoDocuments {
			log.Info("cfg:FindOneSysCfg db.FindOneEx failed",
				log.E(err), log.Any("filter", filter))
			return nil, srvdef.New(srvdef.ErrDbQueryError, "", "")
		}
		return nil, srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return &sysCfg, nil
}

// UpdateOneSysCfg 更新一个系统配置
func UpdateOneSysCfg(ctx context.Context, filter bson.M, update bson.M) *srvdef.SrvErr {
	result, err := sysCfgColl.UpdateOne(ctx, filter, update)
	if err != nil {
		log.Warn("cfg:UpdateOneSysCfg db.UpdateOne failed",
			log.E(err), log.Any("filter", filter))
		return srvdef.New(srvdef.ErrDbUpdateError, "", "")
	}
	if result.MatchedCount != 1 {
		return srvdef.New(srvdef.ErrDbUpdateError, "", "")
	}
	return nil
}

func DeleteOneSysCfg(ctx context.Context, filter bson.M) *srvdef.SrvErr {
	_, err := sysCfgColl.DeleteOne(ctx, filter)
	if err != nil {
		log.Warn("cfg:DeleteOneSysCfg db.DeleteOne failed", log.Any("filter", filter), log.E(err))
		return srvdef.New(srvdef.ErrDbQueryError, "", "")
	}
	return nil
}