// GetProxyByContainerID returns a proxy object by container ID
func GetProxyByContainerID(dbConn *sql.DB, containerID string) (types.Proxy, error) {
	var rows *sql.Rows
	proxy := types.Proxy{}
	var err error

	queryStr := fmt.Sprintf("select p.usename, p.passwd, p.projectid, p.id,  p.containerid, c.name , p.port, p.host, p.databasename from proxy p, container c where p.containerid = c.id and c.id = %s", containerID)

	logit.Info.Println("GetProxyByContainerID:" + queryStr)
	rows, err = dbConn.Query(queryStr)
	if err != nil {
		return proxy, err
	}
	defer rows.Close()
	for rows.Next() {
		if err = rows.Scan(
			&proxy.Usename,
			&proxy.Passwd,
			&proxy.ProjectID,
			&proxy.ID, &proxy.ContainerID,
			&proxy.ContainerName, &proxy.Port, &proxy.Host, &proxy.Database); err != nil {
			return proxy, err
		}
	}
	if err = rows.Err(); err != nil {
		return proxy, err
	}
	var unencrypted string
	unencrypted, err = sec.DecryptPassword(proxy.Passwd)
	if err != nil {
		return proxy, err
	}
	proxy.Passwd = unencrypted

	//see if the container is up
	var resp cpmcontainerapi.StatusResponse
	resp, err = cpmcontainerapi.StatusClient(proxy.ContainerName)
	proxy.ContainerStatus = resp.Status
	if err != nil {
		return proxy, err
	}

	//test the remote host connectivity
	var hoststatus string
	hoststatus, err = util.FastPing(proxy.Port, proxy.Host)
	if err != nil {
		return proxy, err
	}
	if hoststatus == "OFFLINE" {
		proxy.Status = hoststatus
		return proxy, err
	}

	//test the database port on the remote host
	proxy.Status, err = GetDatabaseStatus(proxy, containerID)
	if err != nil {
		return proxy, err
	}

	return proxy, nil
}
// GetNode returns the container node definition
func GetNode(w rest.ResponseWriter, r *rest.Request) {
	dbConn, err := util.GetConnection(CLUSTERADMIN_DB)
	if err != nil {
		logit.Error.Println(err.Error())
		rest.Error(w, err.Error(), 400)
		return

	}
	defer dbConn.Close()

	err = secimpl.Authorize(dbConn, r.PathParam("Token"), "perm-read")
	if err != nil {
		logit.Error.Println(err.Error())
		rest.Error(w, err.Error(), http.StatusUnauthorized)
		return
	}

	ID := r.PathParam("ID")
	if ID == "" {
		logit.Error.Println("error node ID required")
		rest.Error(w, "node ID required", http.StatusBadRequest)
		return
	}

	node, err2 := admindb.GetContainer(dbConn, ID)

	if node.ID == "" {
		rest.NotFound(w, r)
		return
	}
	if err2 != nil {
		logit.Error.Println(err2.Error())
		rest.Error(w, err2.Error(), http.StatusBadRequest)
		return
	}

	var currentStatus = "UNKNOWN"

	request := &swarmapi.DockerInspectRequest{}
	var inspectInfo swarmapi.DockerInspectResponse
	request.ContainerName = node.Name
	inspectInfo, err = swarmapi.DockerInspect(request)
	if err != nil {
		logit.Error.Println(err.Error())
		currentStatus = CONTAINER_NOT_FOUND
	}

	if currentStatus != "CONTAINER NOT FOUND" {
		var pgport types.Setting
		pgport, err = admindb.GetSetting(dbConn, "PG-PORT")
		if err != nil {
			logit.Error.Println(err.Error())
			rest.Error(w, err.Error(), http.StatusBadRequest)
			return
		}
		currentStatus, err = util.FastPing(pgport.Value, node.Name)
		if err != nil {
			logit.Error.Println(err.Error())
			rest.Error(w, err.Error(), http.StatusBadRequest)
			return
		}
		//logit.Info.Println("pinging db finished")
	}

	clusternode := new(types.ClusterNode)
	clusternode.ID = node.ID
	clusternode.ClusterID = node.ClusterID
	clusternode.Name = node.Name
	clusternode.Role = node.Role
	clusternode.Image = node.Image
	clusternode.CreateDate = node.CreateDate
	clusternode.Status = currentStatus
	clusternode.ProjectID = node.ProjectID
	clusternode.ProjectName = node.ProjectName
	clusternode.ClusterName = node.ClusterName
	clusternode.ServerID = inspectInfo.ServerID
	clusternode.IPAddress = inspectInfo.IPAddress

	w.WriteJson(clusternode)
}
func configureCluster(profile string, dbConn *sql.DB, cluster types.Cluster, autocluster bool) error {
	logit.Info.Println("configureCluster:GetCluster")

	//get master node for this cluster
	master, err := admindb.GetContainerMaster(dbConn, cluster.ID)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	var pgport types.Setting
	pgport, err = admindb.GetSetting(dbConn, "PG-PORT")
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}
	var sleepSetting types.Setting
	sleepSetting, err = admindb.GetSetting(dbConn, "SLEEP-PROV")
	if err != nil {
		logit.Error.Println("configureCluster:" + err.Error())
		return err
	}

	//logit.Info.Println("configureCluster:GetContainerMaster")

	//configure master postgresql.conf file
	var data string
	info := new(template.PostgresqlParameters)
	info.PG_PORT = pgport.Value
	err = template.GetTuningParms(dbConn, profile, info)
	if err != nil {
		logit.Error.Println("configureCluster:" + err.Error())
		return err
	}

	if cluster.ClusterType == "synchronous" {
		info.CLUSTER_TYPE = "*"
		data, err = template.Postgresql("master", info)
	} else {
		//TODO verify these next 2 lines look erroneous
		info.CLUSTER_TYPE = "*"
		data, err = template.Postgresql("master", info)

		//info.CLUSTER_TYPE = ""
		//data, err = template.Postgresql("master", info)
	}
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	logit.Info.Println("configureCluster:master postgresql.conf generated")

	//write master postgresql.conf file remotely
	_, err = cpmcontainerapi.RemoteWritefileClient("/pgdata/postgresql.conf", data, master.Name)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	logit.Info.Println("configureCluster:master postgresql.conf copied to remote")

	//get domain name
	var domainname types.Setting
	domainname, err = admindb.GetSetting(dbConn, "DOMAIN-NAME")
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	//configure master pg_hba.conf file
	rules := make([]template.Rule, 0)
	data, err = template.Hba(dbConn, "master", master.Name, pgport.Value, cluster.ID, domainname.Value, rules)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	logit.Info.Println("configureCluster:master pg_hba.conf generated")

	//write master pg_hba.conf file remotely
	_, err = cpmcontainerapi.RemoteWritefileClient("/pgdata/pg_hba.conf", data, master.Name)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	logit.Info.Println("configureCluster:master pg_hba.conf copied remotely")

	//restart postgres after the config file changes
	var stopResp cpmcontainerapi.StopPGResponse
	stopResp, err = cpmcontainerapi.StopPGClient(master.Name)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}
	logit.Info.Println("configureCluster: master stoppg output was" + stopResp.Output)

	var startResp cpmcontainerapi.StartPGResponse
	startResp, err = cpmcontainerapi.StartPGClient(master.Name)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}
	logit.Info.Println("configureCluster:master startpg output was" + startResp.Output)

	//sleep loop until the master's PG can respond
	var sleepTime time.Duration
	sleepTime, err = time.ParseDuration(sleepSetting.Value)
	var found = false
	var currentStatus string
	var masterhost = master.Name
	for i := 0; i < 20; i++ {
		//currentStatus, err = GetPGStatus2(dbConn, master.Name, masterhost)
		currentStatus, err = util.FastPing(pgport.Value, master.Name)
		if currentStatus == "RUNNING" {
			logit.Info.Println("master is running...continuing")
			found = true
			break
		} else {
			logit.Info.Println("sleeping waiting on master..")
			time.Sleep(sleepTime)
		}
	}
	if !found {
		logit.Info.Println("configureCluster: timed out waiting on master pg to start")
		return errors.New("timeout waiting for master pg to respond")
	}

	standbynodes, err2 := admindb.GetAllStandbyContainers(dbConn, cluster.ID)
	if err2 != nil {
		logit.Error.Println(err.Error())
		return err
	}
	//configure all standby nodes
	var stopPGResp cpmcontainerapi.StopPGResponse
	i := 0
	for i = range standbynodes {
		if standbynodes[i].Role == STANDBY {

			//stop standby
			if !autocluster {
				stopPGResp, err = cpmcontainerapi.StopPGClient(standbynodes[i].Name)
				if err != nil {
					logit.Error.Println(err.Error())
					logit.Error.Println("configureCluster:stop output was" + stopPGResp.Output)
					return err
				}
				//logit.Info.Println("configureCluster:stop output was" + stopPGResp.Output)
			}

			//
			var username = "******"
			var password = "******"

			//create base backup from master
			var backupresp cpmcontainerapi.BasebackupResponse
			backupresp, err = cpmcontainerapi.BasebackupClient(masterhost+"."+domainname.Value, standbynodes[i].Name, username, password)
			if err != nil {
				logit.Error.Println(err.Error())
				logit.Error.Println("configureCluster:basebackup output was" + backupresp.Output)
				return err
			}
			//logit.Info.Println("configureCluster:basebackup output was" + backupresp.Output)

			data, err = template.Recovery(masterhost, pgport.Value, "postgres")
			if err != nil {
				logit.Error.Println(err.Error())
				return err
			}
			logit.Info.Println("configureCluster:standby recovery.conf generated")

			//write standby recovery.conf file remotely
			_, err = cpmcontainerapi.RemoteWritefileClient("/pgdata/recovery.conf", data, standbynodes[i].Name)
			if err != nil {
				logit.Error.Println(err.Error())
				return err
			}
			logit.Info.Println("configureCluster:standby recovery.conf copied remotely")

			info := new(template.PostgresqlParameters)
			info.PG_PORT = pgport.Value
			info.CLUSTER_TYPE = ""
			err = template.GetTuningParms(dbConn, profile, info)
			if err != nil {
				logit.Error.Println(err.Error())
				return err
			}

			data, err = template.Postgresql(STANDBY, info)
			if err != nil {
				logit.Error.Println(err.Error())
				return err
			}

			//write standby postgresql.conf file remotely
			_, err = cpmcontainerapi.RemoteWritefileClient("/pgdata/postgresql.conf", data, standbynodes[i].Name)
			if err != nil {
				logit.Error.Println(err.Error())
				return err
			}
			logit.Info.Println("configureCluster:standby postgresql.conf copied remotely")

			//configure standby pg_hba.conf file
			data, err = template.Hba(dbConn, STANDBY, standbynodes[i].Name, pgport.Value, cluster.ID, domainname.Value, rules)
			if err != nil {
				logit.Error.Println(err.Error())
				return err
			}

			logit.Info.Println("configureCluster:standby pg_hba.conf generated")

			//write standby pg_hba.conf file remotely
			_, err = cpmcontainerapi.RemoteWritefileClient("/pgdata/pg_hba.conf", data, standbynodes[i].Name)
			if err != nil {
				logit.Error.Println(err.Error())
				return err
			}
			logit.Info.Println("configureCluster:standby pg_hba.conf copied remotely")

			//start standby

			var stResp cpmcontainerapi.StartPGOnStandbyResponse
			stResp, err = cpmcontainerapi.StartPGOnStandbyClient(standbynodes[i].Name)
			if err != nil {
				logit.Error.Println(err.Error())
				return err
			}
			logit.Info.Println("configureCluster:standby startpg output was" + stResp.Output)
		}
		i++
	}

	logit.Info.Println("configureCluster: sleeping 5 seconds before configuring pgpool...")
	clustersleepTime, _ := time.ParseDuration("5s")
	time.Sleep(clustersleepTime)

	pgpoolNode, err4 := admindb.GetContainerPgpool(dbConn, cluster.ID)
	//logit.Info.Println("configureCluster: lookup pgpool node")
	if err4 != nil {
		logit.Error.Println(err.Error())
		return err
	}
	//logit.Info.Println("configureCluster:" + pgpoolNode.Name)

	//configure the pgpool includes all standby nodes AND the master node
	poolnames := make([]string, len(standbynodes)+1)

	i = 0
	for i = range standbynodes {
		poolnames[i] = standbynodes[i].Name + "." + domainname.Value
		i++
	}
	poolnames[i] = master.Name + "." + domainname.Value

	//generate pgpool.conf HOST_LIST
	data, err = template.Poolconf(poolnames)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	logit.Info.Println("configureCluster:pgpool pgpool.conf generated")

	//write pgpool.conf to remote pool node
	_, err = cpmcontainerapi.RemoteWritefileClient(util.GetBase()+"/bin/"+"pgpool.conf", data, pgpoolNode.Name)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}
	logit.Info.Println("configureCluster:pgpool pgpool.conf copied remotely")

	//generate pool_passwd
	data, err = template.Poolpasswd()
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	logit.Info.Println("configureCluster:pgpool pool_passwd generated")

	//write pgpool.conf to remote pool node
	_, err = cpmcontainerapi.RemoteWritefileClient(util.GetBase()+"/bin/"+"pool_passwd", data, pgpoolNode.Name)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}
	logit.Info.Println("configureCluster:pgpool pool_passwd copied remotely")

	//g enerate pool_hba.conf
	cars := make([]template.Rule, 0)
	data, err = template.Poolhba(cars)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	logit.Info.Println("configureCluster:pgpool pool_hba generated")

	//write pgpool.conf to remote pool node
	_, err = cpmcontainerapi.RemoteWritefileClient(util.GetBase()+"/bin/"+"pool_hba.conf", data, pgpoolNode.Name)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}
	logit.Info.Println("configureCluster:pgpool pool_hba copied remotely")

	//start pgpool
	var startPoolResp cpmcontainerapi.StartPgpoolResponse
	startPoolResp, err = cpmcontainerapi.StartPgpoolClient(pgpoolNode.Name)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}
	logit.Info.Println("configureCluster: pgpool startpgpool output was" + startPoolResp.Output)

	//finally, update the cluster to show that it is
	//initialized!
	cluster.Status = "initialized"
	err = admindb.UpdateCluster(dbConn, cluster)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	return nil

}
func performConfigUpdate(dbConn *sql.DB, ContainerID string) error {
	logit.Info.Println("performConfigUpdate....")

	cars, err := GetAllContainerAccessRule(dbConn, ContainerID)
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}

	container, err := admindb.GetContainer(dbConn, ContainerID)
	if err != nil {
		logit.Error.Println("GetNode: " + err.Error())
		return err
	}

	var currentStatus string
	//currentStatus, err = GetPGStatus2(dbConn, container.Name, container.Name)
	var pgport types.Setting
	pgport, err = admindb.GetSetting(dbConn, "PG-PORT")
	if err != nil {
		logit.Error.Println(err.Error())
		return err
	}
	currentStatus, err = util.FastPing(pgport.Value, container.Name)
	if err != nil {
		logit.Error.Println("GetNode:" + err.Error())
		return err
	}

	if currentStatus != "RUNNING" {
		logit.Info.Println("performConfigUpdate....starting postgres")
		if container.Role == "pgpool" {
			var spgresp cpmcontainerapi.StartPgpoolResponse
			spgresp, err = cpmcontainerapi.StartPgpoolClient(container.Name)
			logit.Info.Println("AdminStartpg:" + spgresp.Output)
		} else {
			var srep cpmcontainerapi.StartPGResponse
			srep, err = cpmcontainerapi.StartPGClient(container.Name)
			logit.Info.Println("AdminStartpg:" + srep.Output)
		}

		if err != nil {
			logit.Error.Println("AdminStartpg:" + err.Error())
			return err
		}

	}

	//make template changes here
	logit.Info.Println("performConfigUpdate....making template changes")
	templateChange(dbConn, container.Name, cars, container.Role)

	//restart postgres

	if container.Role == "pgpool" {
		logit.Info.Println("performConfigUpdate....stopping pgpool")
		var stoppoolResp cpmcontainerapi.StopPgpoolResponse
		stoppoolResp, err = cpmcontainerapi.StopPgpoolClient(container.Name)
		logit.Info.Println("AdminStoppg:" + stoppoolResp.Output)
	} else {
		logit.Info.Println("performConfigUpdate....stopping postgres")
		var stoppgResp cpmcontainerapi.StopPGResponse
		stoppgResp, err = cpmcontainerapi.StopPGClient(container.Name)
		logit.Info.Println("AdminStoppg:" + stoppgResp.Output)
	}
	if err != nil {
		logit.Error.Println("AdminStoppg:" + err.Error())
		return err
	}

	if container.Role == "pgpool" {
		logit.Info.Println("performConfigUpdate....starting pgpool")
		var spgresp cpmcontainerapi.StartPgpoolResponse
		spgresp, err = cpmcontainerapi.StartPgpoolClient(container.Name)
		logit.Info.Println("AdminStartpg:" + spgresp.Output)
	} else {
		logit.Info.Println("performConfigUpdate....starting postgres")
		var srep cpmcontainerapi.StartPGResponse
		srep, err = cpmcontainerapi.StartPGClient(container.Name)
		logit.Info.Println("AdminStartpg:" + srep.Output)
	}

	if err != nil {
		logit.Error.Println("AdminStartpg:" + err.Error())
		return err
	}

	return err

}