/*
 * Copyright 2019-present Open Networking Foundation

 * 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 core provides the utility for olt devices, flows and statistics
package core

import (
	"context"
	"fmt"
	"reflect"
	"testing"

	"github.com/opencord/voltha-protos/v4/go/openolt"
	"github.com/opencord/voltha-protos/v4/go/voltha"
)

func TestOpenOltStatisticsMgr_PortStatisticsIndication(t *testing.T) {
	device := &voltha.Device{
		Id:       "olt",
		Root:     true,
		ParentId: "logical_device",
		ProxyAddress: &voltha.Device_ProxyAddress{
			DeviceId:       "olt",
			DeviceType:     "onu",
			ChannelId:      1,
			ChannelGroupId: 1,
		},
		ConnectStatus: 1,
	}
	dh := newMockDeviceHandler()
	dh.device = device
	StatMgr := NewOpenOltStatsMgr(context.Background(), dh)

	type args struct {
		PortStats *openolt.PortStatistics
	}
	tests := []struct {
		name string
		args args
	}{
		// TODO: Add test cases.
		{"PortStatisticsIndication", args{PortStats: &openolt.PortStatistics{}}},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {

			StatMgr.PortStatisticsIndication(context.Background(), tt.args.PortStats, 16)
		})
	}
}

func TestOpenOltStatisticsMgr_publishMetrics(t *testing.T) {
	type fields struct {
		Device         *DeviceHandler
		NorthBoundPort map[uint32]*NniPort
		SouthBoundPort map[uint32]*PonPort
	}
	type args struct {
		val      map[string]float32
		port     *voltha.Port
		statType string
	}
	ponmap := map[uint32]*PonPort{}
	ponmap[0] = &PonPort{
		PONID:          0,
		DeviceID:       "onu1",
		IntfID:         0,
		PortNum:        0,
		PortID:         0,
		Label:          "",
		ONUs:           nil,
		ONUsByID:       nil,
		RxBytes:        0,
		RxPackets:      0,
		RxUcastPackets: 0,
		RxMcastPackets: 0,
		RxBcastPackets: 0,
		RxErrorPackets: 0,
		TxBytes:        0,
		TxPackets:      0,
		TxUcastPackets: 0,
		TxMcastPackets: 0,
		TxBcastPackets: 0,
		TxErrorPackets: 0,
		RxCrcErrors:    0,
		BipErrors:      0,
	}
	nnimap := map[uint32]*NniPort{}
	nnimap[0] = &NniPort{
		PortNum:        0,
		Name:           "olt1",
		LogicalPort:    0,
		IntfID:         0,
		RxBytes:        0,
		RxPackets:      0,
		RxUcastPackets: 0,
		RxMcastPackets: uint64(1111),
		RxBcastPackets: 0,
		RxErrorPackets: 0,
		TxBytes:        0,
		TxPackets:      0,
		TxUcastPackets: 0,
		TxMcastPackets: 0,
		TxBcastPackets: 0,
		TxErrorPackets: 0,
		RxCrcErrors:    0,
		BipErrors:      0,
	}
	pval := make(map[string]float32)
	pval["rx_bytes"] = float32(111)
	nval := make(map[string]float32)
	nval["rx_bytes"] = float32(111)
	dhandlerNNI := newMockDeviceHandler()
	dhandlerNNI.portStats = &OpenOltStatisticsMgr{Device: nil, SouthBoundPort: nil, NorthBoundPort: nnimap}
	dhandlerPON := newMockDeviceHandler()
	dhandlerPON.portStats = &OpenOltStatisticsMgr{Device: nil, SouthBoundPort: ponmap, NorthBoundPort: nil}
	dhandlerONU := newMockDeviceHandler()
	dhandlerGEM := newMockDeviceHandler()

	tests := []struct {
		name   string
		fields fields
		args   args
	}{
		{
			name: "PublishNNIMetrics-1",
			fields: fields{
				Device:         dhandlerNNI,
				NorthBoundPort: nnimap,
				SouthBoundPort: nil,
			},
			args: args{
				val:      nval,
				port:     &voltha.Port{PortNo: 0, Label: fmt.Sprintf("%s%d", "nni-", 0), Type: voltha.Port_ETHERNET_NNI},
				statType: NNIStats,
			},
		},
		{
			name: "PublishPONMetrics-1",
			fields: fields{
				Device:         dhandlerPON,
				NorthBoundPort: nil,
				SouthBoundPort: ponmap,
			},
			args: args{
				val:      pval,
				port:     &voltha.Port{PortNo: 1, Label: fmt.Sprintf("%s%d", "pon-", 1), Type: voltha.Port_PON_OLT},
				statType: PONStats,
			},
		},
		{
			name: "PublishONUMetrics-1",
			fields: fields{
				Device:         dhandlerONU,
				NorthBoundPort: nil,
				SouthBoundPort: nil,
			},
			args: args{
				port:     &voltha.Port{Label: "ONU"},
				statType: ONUStats,
			},
		},
		{
			name: "PublishGEMMetrics-1",
			fields: fields{
				Device:         dhandlerGEM,
				NorthBoundPort: nil,
				SouthBoundPort: nil,
			},
			args: args{
				port:     &voltha.Port{Label: "GEM"},
				statType: GEMStats,
			},
		},
		// TODO: Add test cases.
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			StatMgr := &OpenOltStatisticsMgr{
				Device:         tt.fields.Device,
				NorthBoundPort: tt.fields.NorthBoundPort,
				SouthBoundPort: tt.fields.SouthBoundPort,
			}
			if tt.args.statType == ONUStats {
				tt.args.val = StatMgr.convertONUStats(&openolt.OnuStatistics{IntfId: 1, OnuId: 1, PositiveDrift: 123, BipErrors: 22})
			} else if tt.args.statType == GEMStats {
				tt.args.val = StatMgr.convertGemStats(&openolt.GemPortStatistics{IntfId: 1, GemportId: 1024, RxPackets: 12, TxBytes: 12})
			}
			StatMgr.publishMetrics(context.Background(), tt.args.statType, tt.args.val, tt.args.port, "onu1", "openolt")
		})
	}
}

func TestOpenOltStatisticsMgr_collectNNIMetrics(t *testing.T) {
	type fields struct {
		Device         *DeviceHandler
		NorthBoundPort map[uint32]*NniPort
		SouthBoundPort map[uint32]*PonPort
	}
	type args struct {
		nniID uint32
	}
	dhandler := newMockDeviceHandler()
	pmconfig := make(map[string]*voltha.PmConfig)
	pmconfig["rx_bytes"] = &voltha.PmConfig{Name: "olt"}

	var res map[string]float32
	nnimap := map[uint32]*NniPort{}
	nnimap[0] = &NniPort{Name: "olt"}
	nnimap[1] = &NniPort{Name: "olt"}
	dh := &DeviceHandler{portStats: &OpenOltStatisticsMgr{Device: dhandler, SouthBoundPort: nil, NorthBoundPort: nnimap}}
	tests := []struct {
		name   string
		fields fields
		args   args
		want   map[string]float32
	}{
		{"CollectNNIMetrics-1", fields{
			Device:         dh,
			NorthBoundPort: nnimap,
			SouthBoundPort: nil,
		}, args{0}, res},
		{"CollectNNIMetrics-2", fields{
			Device:         dh,
			NorthBoundPort: nnimap,
			SouthBoundPort: nil,
		}, args{1}, res},
		// TODO: Add test cases.
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			StatMgr := &OpenOltStatisticsMgr{
				Device:         tt.fields.Device,
				NorthBoundPort: tt.fields.NorthBoundPort,
				SouthBoundPort: tt.fields.SouthBoundPort,
			}
			got := StatMgr.collectNNIMetrics(tt.args.nniID)
			if reflect.TypeOf(got) != reflect.TypeOf(tt.want) {
				t.Errorf("collectNNIMetrics() = %v, want %v", got, tt.want)
			}
		})
	}
}

func TestOpenOltStatisticsMgr_collectPONMetrics(t *testing.T) {
	type fields struct {
		Device         *DeviceHandler
		NorthBoundPort map[uint32]*NniPort
		SouthBoundPort map[uint32]*PonPort
	}
	type args struct {
		pID uint32
	}
	dhandler := newMockDeviceHandler()
	pmconfig := make(map[string]*voltha.PmConfig)
	pmconfig["rx_bytes"] = &voltha.PmConfig{Name: "olt"}

	var res map[string]float32
	ponmap := map[uint32]*PonPort{}
	ponmap[0] = &PonPort{DeviceID: "olt"}
	ponmap[1] = &PonPort{DeviceID: "olt"}
	dh := &DeviceHandler{portStats: &OpenOltStatisticsMgr{Device: dhandler, SouthBoundPort: ponmap, NorthBoundPort: nil}}

	tests := []struct {
		name   string
		fields fields
		args   args
		want   map[string]float32
	}{
		{"CollectPONMetrics-1", fields{
			Device:         dh,
			NorthBoundPort: nil,
			SouthBoundPort: ponmap,
		}, args{0}, res},
		// TODO: Add test cases.
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			StatMgr := &OpenOltStatisticsMgr{
				Device:         tt.fields.Device,
				NorthBoundPort: tt.fields.NorthBoundPort,
				SouthBoundPort: tt.fields.SouthBoundPort,
			}
			got := StatMgr.collectPONMetrics(tt.args.pID)
			if reflect.TypeOf(got) != reflect.TypeOf(tt.want) {
				t.Errorf("collectPONMetrics() = %v, want %v", got, tt.want)
			}
		})
	}
}