Create uni command in BBSimctl
Clean up UNI command and add filtering to UNI services

Change-Id: I1a54d786ca71a602c0ca0113f030c6caa1bc9cc7
diff --git a/internal/bbsimctl/commands/uni.go b/internal/bbsimctl/commands/uni.go
new file mode 100644
index 0000000..ba1c795
--- /dev/null
+++ b/internal/bbsimctl/commands/uni.go
@@ -0,0 +1,141 @@
+/*
+ * Portions copyright 2019-present Open Networking Foundation
+ * Original copyright 2019-present Ciena Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package commands
+
+import (
+	"context"
+	"os"
+
+	"github.com/jessevdk/go-flags"
+	pb "github.com/opencord/bbsim/api/bbsim"
+	"github.com/opencord/bbsim/internal/bbsimctl/config"
+	"github.com/opencord/cordctl/pkg/format"
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	DEFAULT_UNI_HEADER_FORMAT               = "table{{ .OnuSn }}\t{{ .OnuID }}\t{{ .ID }}\t{{ .MeID }}\t{{ .PortNo }}\t{{ .OperState }}"
+	DEFAULT_UNI_HEADER_FORMAT_WITH_SERVICES = "table{{ .OnuSn }}\t{{ .OnuID }}\t{{ .ID }}\t{{ .MeID }}\t{{ .PortNo }}\t{{ .OperState }}\t{{ .Services }}"
+)
+
+type UniIdInt string
+
+type UNIList struct {
+	Verbose bool `short:"v" long:"verbose" description:"Print all the Unis from all the ONUs"`
+}
+
+type UNIGet struct {
+	Verbose bool `short:"v" long:"verbose" description:"Print all the informations we have about UNIs"`
+	Args    struct {
+		OnuSn OnuSnString
+	} `positional-args:"yes" required:"yes"`
+}
+
+type UNIServices struct {
+	Verbose bool `short:"v" long:"verbose" description:"Print all the Services from the specified UNI"`
+	Args    struct {
+		OnuSn OnuSnString
+		UniId UniIdInt
+	} `positional-args:"yes"`
+}
+
+type UNIOptions struct {
+	List     UNIList     `command:"list"`
+	Get      UNIGet      `command:"get"`
+	Services UNIServices `command:"services"`
+}
+
+func RegisterUNICommands(parser *flags.Parser) {
+	_, _ = parser.AddCommand("uni", "UNI Commands", "Commands to query and manipulate UNIs", &UNIOptions{})
+}
+
+func (options *UNIList) Execute(args []string) error {
+	client, conn := connect()
+	defer conn.Close()
+
+	// Contact the server and print out its response.
+	ctx, cancel := context.WithTimeout(context.Background(), config.GlobalConfig.Grpc.Timeout)
+	defer cancel()
+
+	unis, err := client.GetUnis(ctx, &pb.Empty{})
+	if err != nil {
+		log.Fatalf("could not get UNIs: %v", err)
+		return err
+	}
+
+	var tableFormat format.Format
+	if options.Verbose {
+		tableFormat = format.Format(DEFAULT_UNI_HEADER_FORMAT_WITH_SERVICES)
+	} else {
+		tableFormat = format.Format(DEFAULT_UNI_HEADER_FORMAT)
+	}
+	if err := tableFormat.Execute(os.Stdout, true, unis.Items); err != nil {
+		log.Fatalf("Error while formatting Unis table: %s", err)
+	}
+
+	return nil
+}
+
+func (options *UNIGet) Execute(args []string) error {
+
+	client, conn := connect()
+	defer conn.Close()
+
+	ctx, cancel := context.WithTimeout(context.Background(), config.GlobalConfig.Grpc.Timeout)
+	defer cancel()
+	req := pb.ONURequest{
+		SerialNumber: string(options.Args.OnuSn),
+	}
+	res, err := client.GetOnuUnis(ctx, &req)
+
+	if err != nil {
+		log.Fatalf("Cannot not get unis for ONU %s: %v", options.Args.OnuSn, err)
+		return err
+	}
+
+	var tableFormat format.Format
+	if options.Verbose {
+		tableFormat = format.Format(DEFAULT_UNI_HEADER_FORMAT_WITH_SERVICES)
+	} else {
+		tableFormat = format.Format(DEFAULT_UNI_HEADER_FORMAT)
+	}
+	if err := tableFormat.Execute(os.Stdout, true, res.Items); err != nil {
+		log.Fatalf("Error while formatting Unis table: %s", err)
+	}
+
+	return nil
+}
+
+//Get Services for specified UNI
+//First get UNIs from specified ONU SN
+//Then get Services from appropriate UNI
+func (options *UNIServices) Execute(args []string) error {
+	services, err := getServices(string(options.Args.OnuSn), string(options.Args.UniId))
+
+	if err != nil {
+		log.Fatalf("Cannot not get services for ONU %s and UNI %s: %v", options.Args.OnuSn, options.Args.UniId, err)
+		return err
+	}
+
+	tableFormat := format.Format(DEFAULT_SERVICE_HEADER_FORMAT)
+	if err := tableFormat.Execute(os.Stdout, true, services.Items); err != nil {
+		log.Fatalf("Error while formatting ONUs table: %s", err)
+	}
+
+	return nil
+}