/*
Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
Copyright (C) ITsysCOM GmbH

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>
*/
package engine

import (
	"reflect"
	"testing"
	"time"

	"github.com/cgrates/cgrates/config"
	"github.com/cgrates/cgrates/utils"
)

var (
	cloneExpTimeStats time.Time
	expTimeStats      = time.Now().Add(time.Duration(20 * time.Minute))
	statService       *StatService
	dmSTS             *DataManager
	sqps              = []*StatQueueProfile{
		{
			Tenant:    "cgrates.org",
			ID:        "StatQueueProfile1",
			FilterIDs: []string{"FLTR_STATS_1"},
			ActivationInterval: &utils.ActivationInterval{
				ActivationTime: time.Date(2014, 7, 14, 14, 25, 0, 0, time.UTC),
			},
			QueueLength: 10,
			TTL:         time.Duration(10) * time.Second,
			Metrics: []*MetricWithFilters{
				&MetricWithFilters{
					MetricID: "*sum#Usage",
				},
			},
			ThresholdIDs: []string{},
			Blocker:      false,
			Stored:       true,
			Weight:       20,
			MinItems:     1,
		},
		{
			Tenant:    "cgrates.org",
			ID:        "StatQueueProfile2",
			FilterIDs: []string{"FLTR_STATS_2"},
			ActivationInterval: &utils.ActivationInterval{
				ActivationTime: time.Date(2014, 7, 14, 14, 25, 0, 0, time.UTC),
			},
			QueueLength: 10,
			TTL:         time.Duration(10) * time.Second,
			Metrics: []*MetricWithFilters{
				&MetricWithFilters{
					MetricID: "*sum#Usage",
				},
			},
			ThresholdIDs: []string{},
			Blocker:      false,
			Stored:       true,
			Weight:       20,
			MinItems:     1,
		},
		{
			Tenant:    "cgrates.org",
			ID:        "StatQueueProfilePrefix",
			FilterIDs: []string{"FLTR_STATS_3"},
			ActivationInterval: &utils.ActivationInterval{
				ActivationTime: time.Date(2014, 7, 14, 14, 25, 0, 0, time.UTC),
			},
			QueueLength: 10,
			TTL:         time.Duration(10) * time.Second,
			Metrics: []*MetricWithFilters{
				&MetricWithFilters{
					MetricID: "*sum#Usage",
				},
			},
			ThresholdIDs: []string{},
			Blocker:      false,
			Stored:       true,
			Weight:       20,
			MinItems:     1,
		},
	}
	stqs = []*StatQueue{
		{Tenant: "cgrates.org", ID: "StatQueueProfile1", sqPrfl: sqps[0]},
		{Tenant: "cgrates.org", ID: "StatQueueProfile2", sqPrfl: sqps[1]},
		{Tenant: "cgrates.org", ID: "StatQueueProfilePrefix", sqPrfl: sqps[2]},
	}
	statsEvs = []*StatsArgsProcessEvent{
		{
			CGREvent: utils.CGREvent{
				Tenant: "cgrates.org",
				ID:     "event1",
				Event: map[string]interface{}{
					"Stats":          "StatQueueProfile1",
					utils.AnswerTime: time.Date(2014, 7, 14, 14, 30, 0, 0, time.UTC),
					"UsageInterval":  "1s",
					"PddInterval":    "1s",
					"Weight":         "9.0",
					utils.Usage:      time.Duration(135 * time.Second),
					utils.COST:       123.0,
				},
			},
		},
		{
			CGREvent: utils.CGREvent{
				Tenant: "cgrates.org",
				ID:     "event2",
				Event: map[string]interface{}{
					"Stats":          "StatQueueProfile2",
					utils.AnswerTime: time.Date(2014, 7, 14, 14, 30, 0, 0, time.UTC),
					"UsageInterval":  "1s",
					"PddInterval":    "1s",
					"Weight":         "15.0",
					utils.Usage:      time.Duration(45 * time.Second),
				},
			},
		},
		{
			CGREvent: utils.CGREvent{
				Tenant: "cgrates.org",
				ID:     "event3",
				Event: map[string]interface{}{
					"Stats":     "StatQueueProfilePrefix",
					utils.Usage: time.Duration(30 * time.Second),
				},
			},
		},
	}
)

func TestStatQueuesPopulateService(t *testing.T) {
	data, _ := NewMapStorage()
	dmSTS = NewDataManager(data)
	defaultCfg, err := config.NewDefaultCGRConfig()
	if err != nil {
		t.Errorf("Error: %+v", err)
	}

	statService, err = NewStatService(dmSTS, time.Duration(1),
		nil, &FilterS{dm: dmSTS, cfg: defaultCfg}, nil, nil)
	if err != nil {
		t.Errorf("Error: %+v", err)
	}
}

func TestStatQueuesAddFilters(t *testing.T) {
	fltrSts1 := &Filter{
		Tenant: config.CgrConfig().GeneralCfg().DefaultTenant,
		ID:     "FLTR_STATS_1",
		Rules: []*FilterRule{
			{
				Type:      MetaString,
				FieldName: "~Stats",
				Values:    []string{"StatQueueProfile1"},
			},
			{
				Type:      MetaGreaterOrEqual,
				FieldName: "~UsageInterval",
				Values:    []string{(1 * time.Second).String()},
			},
			{
				Type:      MetaGreaterOrEqual,
				FieldName: utils.DynamicDataPrefix + utils.Usage,
				Values:    []string{(1 * time.Second).String()},
			},
			{
				Type:      MetaGreaterOrEqual,
				FieldName: utils.DynamicDataPrefix + utils.Weight,
				Values:    []string{"9.0"},
			},
		},
	}
	dmSTS.SetFilter(fltrSts1)
	fltrSts2 := &Filter{
		Tenant: config.CgrConfig().GeneralCfg().DefaultTenant,
		ID:     "FLTR_STATS_2",
		Rules: []*FilterRule{
			{
				Type:      MetaString,
				FieldName: "~Stats",
				Values:    []string{"StatQueueProfile2"},
			},
			{
				Type:      MetaGreaterOrEqual,
				FieldName: "~PddInterval",
				Values:    []string{(1 * time.Second).String()},
			},
			{
				Type:      MetaGreaterOrEqual,
				FieldName: utils.DynamicDataPrefix + utils.Usage,
				Values:    []string{(1 * time.Second).String()},
			},
			{
				Type:      MetaGreaterOrEqual,
				FieldName: utils.DynamicDataPrefix + utils.Weight,
				Values:    []string{"15.0"},
			},
		},
	}
	dmSTS.SetFilter(fltrSts2)
	fltrSts3 := &Filter{
		Tenant: config.CgrConfig().GeneralCfg().DefaultTenant,
		ID:     "FLTR_STATS_3",
		Rules: []*FilterRule{
			{
				Type:      MetaPrefix,
				FieldName: "~Stats",
				Values:    []string{"StatQueueProfilePrefix"},
			},
		},
	}
	dmSTS.SetFilter(fltrSts3)
}

func TestStatQueuesPopulateStatsService(t *testing.T) {
	for _, statQueueProfile := range sqps {
		dmSTS.SetStatQueueProfile(statQueueProfile, true)
	}
	for _, statQueue := range stqs {
		dmSTS.SetStatQueue(statQueue)
	}
	//Test each statQueueProfile from cache
	for _, sqp := range sqps {
		if tempStat, err := dmSTS.GetStatQueueProfile(sqp.Tenant,
			sqp.ID, true, false, utils.NonTransactional); err != nil {
			t.Errorf("Error: %+v", err)
		} else if !reflect.DeepEqual(sqp, tempStat) {
			t.Errorf("Expecting: %+v, received: %+v", sqp, tempStat)
		}
	}
}

func TestStatQueuesMatchingStatQueuesForEvent(t *testing.T) {
	msq, err := statService.matchingStatQueuesForEvent(statsEvs[0])
	if err != nil {
		t.Errorf("Error: %+v", err)
	}
	if !reflect.DeepEqual(stqs[0].Tenant, msq[0].Tenant) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[0].Tenant, msq[0].Tenant)
	} else if !reflect.DeepEqual(stqs[0].ID, msq[0].ID) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[0].ID, msq[0].ID)
	} else if !reflect.DeepEqual(stqs[0].sqPrfl, msq[0].sqPrfl) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[0].sqPrfl, msq[0].sqPrfl)
	}
	msq, err = statService.matchingStatQueuesForEvent(statsEvs[1])
	if err != nil {
		t.Errorf("Error: %+v", err)
	}
	if !reflect.DeepEqual(stqs[1].Tenant, msq[0].Tenant) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[1].Tenant, msq[0].Tenant)
	} else if !reflect.DeepEqual(stqs[1].ID, msq[0].ID) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[1].ID, msq[0].ID)
	} else if !reflect.DeepEqual(stqs[1].sqPrfl, msq[0].sqPrfl) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[1].sqPrfl, msq[0].sqPrfl)
	}
	msq, err = statService.matchingStatQueuesForEvent(statsEvs[2])
	if err != nil {
		t.Errorf("Error: %+v", err)
	}
	if !reflect.DeepEqual(stqs[2].Tenant, msq[0].Tenant) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[2].Tenant, msq[0].Tenant)
	} else if !reflect.DeepEqual(stqs[2].ID, msq[0].ID) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[2].ID, msq[0].ID)
	} else if !reflect.DeepEqual(stqs[2].sqPrfl, msq[0].sqPrfl) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[2].sqPrfl, msq[0].sqPrfl)
	}
}

func TestStatQueuesProcessEvent(t *testing.T) {
	stq := map[string]string{}
	reply := []string{}
	expected := []string{"StatQueueProfile1"}
	err := statService.V1ProcessEvent(statsEvs[0], &reply)
	if err != nil {
		t.Errorf("Error: %+v", err)
	} else if !reflect.DeepEqual(reply, expected) {
		t.Errorf("Expecting: %+v, received: %+v", expected, reply)
	}
	err = statService.V1GetQueueStringMetrics(&utils.TenantID{Tenant: stqs[0].Tenant, ID: stqs[0].ID}, &stq)
	if err != nil {
		t.Errorf("Error: %+v", err)
	}

	expected = []string{"StatQueueProfile2"}
	err = statService.V1ProcessEvent(statsEvs[1], &reply)
	if err != nil {
		t.Errorf("Error: %+v", err)
	} else if !reflect.DeepEqual(reply, expected) {
		t.Errorf("Expecting: %+v, received: %+v", expected, reply)
	}
	err = statService.V1GetQueueStringMetrics(&utils.TenantID{Tenant: stqs[1].Tenant, ID: stqs[1].ID}, &stq)
	if err != nil {
		t.Errorf("Error: %+v", err)
	}

	expected = []string{"StatQueueProfilePrefix"}
	err = statService.V1ProcessEvent(statsEvs[2], &reply)
	if err != nil {
		t.Errorf("Error: %+v", err)
	} else if !reflect.DeepEqual(reply, expected) {
		t.Errorf("Expecting: %+v, received: %+v", expected, reply)
	}
	err = statService.V1GetQueueStringMetrics(&utils.TenantID{Tenant: stqs[2].Tenant, ID: stqs[2].ID}, &stq)
	if err != nil {
		t.Errorf("Error: %+v", err)
	}
}

func TestStatQueuesMatchWithIndexFalse(t *testing.T) {
	statService.filterS.cfg.StatSCfg().IndexedSelects = false
	msq, err := statService.matchingStatQueuesForEvent(statsEvs[0])
	if err != nil {
		t.Errorf("Error: %+v", err)
	}
	if !reflect.DeepEqual(stqs[0].Tenant, msq[0].Tenant) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[0].Tenant, msq[0].Tenant)
	} else if !reflect.DeepEqual(stqs[0].ID, msq[0].ID) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[0].ID, msq[0].ID)
	} else if !reflect.DeepEqual(stqs[0].sqPrfl, msq[0].sqPrfl) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[0].sqPrfl, msq[0].sqPrfl)
	}
	msq, err = statService.matchingStatQueuesForEvent(statsEvs[1])
	if err != nil {
		t.Errorf("Error: %+v", err)
	}
	if !reflect.DeepEqual(stqs[1].Tenant, msq[0].Tenant) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[1].Tenant, msq[0].Tenant)
	} else if !reflect.DeepEqual(stqs[1].ID, msq[0].ID) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[1].ID, msq[0].ID)
	} else if !reflect.DeepEqual(stqs[1].sqPrfl, msq[0].sqPrfl) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[1].sqPrfl, msq[0].sqPrfl)
	}
	msq, err = statService.matchingStatQueuesForEvent(statsEvs[2])
	if err != nil {
		t.Errorf("Error: %+v", err)
	}
	if !reflect.DeepEqual(stqs[2].Tenant, msq[0].Tenant) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[2].Tenant, msq[0].Tenant)
	} else if !reflect.DeepEqual(stqs[2].ID, msq[0].ID) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[2].ID, msq[0].ID)
	} else if !reflect.DeepEqual(stqs[2].sqPrfl, msq[0].sqPrfl) {
		t.Errorf("Expecting: %+v, received: %+v", stqs[2].sqPrfl, msq[0].sqPrfl)
	}
}
func TestStatQueuesV1ProcessEvent(t *testing.T) {
	sqPrf := &StatQueueProfile{
		Tenant:    "cgrates.org",
		ID:        "StatQueueProfile3",
		FilterIDs: []string{"FLTR_STATS_1"},
		ActivationInterval: &utils.ActivationInterval{
			ActivationTime: time.Date(2014, 7, 14, 14, 25, 0, 0, time.UTC),
		},
		QueueLength: 10,
		TTL:         time.Duration(10) * time.Second,
		Metrics: []*MetricWithFilters{
			&MetricWithFilters{
				MetricID: "*sum#Usage",
			},
		},
		ThresholdIDs: []string{},
		Stored:       true,
		Weight:       20,
		MinItems:     1,
	}
	sq := &StatQueue{Tenant: "cgrates.org", ID: "StatQueueProfile3", sqPrfl: sqPrf}
	if err := dmSTS.SetStatQueueProfile(sqPrf, true); err != nil {
		t.Error(err)
	}
	if err := dmSTS.SetStatQueue(sq); err != nil {
		t.Error(err)
	}
	if tempStat, err := dmSTS.GetStatQueueProfile(sqPrf.Tenant,
		sqPrf.ID, true, false, utils.NonTransactional); err != nil {
		t.Errorf("Error: %+v", err)
	} else if !reflect.DeepEqual(sqPrf, tempStat) {
		t.Errorf("Expecting: %+v, received: %+v", sqPrf, tempStat)
	}
	ev := &StatsArgsProcessEvent{
		StatIDs:  []string{"StatQueueProfile1", "StatQueueProfile2", "StatQueueProfile3"},
		CGREvent: statsEvs[0].CGREvent,
	}
	reply := []string{}
	expected := []string{"StatQueueProfile1", "StatQueueProfile3"}
	expectedRev := []string{"StatQueueProfile3", "StatQueueProfile1"}
	if err := statService.V1ProcessEvent(ev, &reply); err != nil {
		t.Errorf("Error: %+v", err)
	} else if !reflect.DeepEqual(reply, expected) && !reflect.DeepEqual(reply, expectedRev) {
		t.Errorf("Expecting: %+v, received: %+v", expected, reply)
	}
}