/*
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 agents

import (
	"encoding/json"
	"reflect"
	"testing"

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

var (
	stasisStart                = `{"application":"cgrates_auth","type":"StasisStart","timestamp":"2016-09-12T13:53:48.919+0200","args":["cgr_reqtype=*prepaid","cgr_supplier=supplier1", "extra1=val1", "extra2=val2"],"channel":{"id":"1473681228.6","state":"Ring","name":"PJSIP/1001-00000004","caller":{"name":"1001","number":"1001"},"language":"en","connected":{"name":"","number":""},"accountcode":"","dialplan":{"context":"internal","exten":"1002","priority":2},"creationtime":"2016-09-12T13:53:48.918+0200"}}`
	channelStateChange         = `{"application":"cgrates_auth","type":"ChannelStateChange","timestamp":"2016-09-12T13:53:52.110+0200","channel":{"id":"1473681228.6","state":"Up","name":"PJSIP/1001-00000004","caller":{"name":"1001","number":"1001"},"language":"en","connected":{"name":"","number":"1002"},"accountcode":"","dialplan":{"context":"internal","exten":"1002","priority":3},"creationtime":"2016-09-12T13:53:48.918+0200"}}`
	channelAnsweredDestroyed   = `{"type":"ChannelDestroyed","timestamp":"2016-09-12T13:54:27.335+0200","application":"cgrates_auth","cause_txt":"Normal Clearing","channel":{"id":"1473681228.6","state":"Up","name":"PJSIP/1001-00000004","caller":{"name":"1001","number":"1001"},"language":"en","connected":{"name":"","number":"1002"},"accountcode":"","dialplan":{"context":"internal","exten":"1002","priority":3},"creationtime":"2016-09-12T13:53:48.918+0200"},"cause":16}`
	channelUnansweredDestroyed = `{"type":"ChannelDestroyed","timestamp":"2016-09-12T18:00:18.121+0200","application":"cgrates_auth","cause_txt":"Normal Clearing","channel":{"id":"1473696018.2","state":"Ring","name":"PJSIP/1002-00000002","caller":{"name":"1002","number":"1002"},"language":"en","connected":{"name":"","number":""},"accountcode":"","dialplan":{"context":"internal","exten":"1002","priority":2},"creationtime":"2016-09-12T18:00:18.109+0200"},"cause":16}`
	channelBusyDestroyed       = `{"type":"ChannelDestroyed","timestamp":"2016-09-13T12:59:48.806+0200","application":"cgrates_auth","cause_txt":"User busy","channel":{"id":"1473764378.3","state":"Ring","name":"PJSIP/1001-00000002","caller":{"name":"1001","number":"1001"},"language":"en","connected":{"name":"","number":"1002"},"accountcode":"","dialplan":{"context":"internal","exten":"1002","priority":4},"creationtime":"2016-09-13T12:59:38.839+0200"},"cause":17}`
)

func TestSMAParseStasisArgs(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	expAppArgs := map[string]string{"cgr_reqtype": "*prepaid", "cgr_supplier": "supplier1", "extra1": "val1", "extra2": "val2"}
	if !reflect.DeepEqual(smaEv.cachedFields, expAppArgs) {
		t.Errorf("Expecting: %+v, received: %+v", smaEv.cachedFields, expAppArgs)
	}
	ev = make(map[string]interface{}) // Clear previous data
	if err := json.Unmarshal([]byte("{}"), &ev); err != nil {
		t.Error(err)
	}
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	expAppArgs = map[string]string{}
	if !reflect.DeepEqual(smaEv.cachedFields, expAppArgs) {
		t.Errorf("Expecting: %+v, received: %+v", smaEv.cachedFields, expAppArgs)
	}
}

func TestSMAEventType(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.EventType() != "StasisStart" {
		t.Error("Received:", smaEv.EventType())
	}
	ev = make(map[string]interface{}) // Clear previous data
	if err := json.Unmarshal([]byte("{}"), &ev); err != nil {
		t.Error(err)
	}
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.EventType() != "" {
		t.Error("Received:", smaEv.EventType())
	}
}

func TestSMAEventChannelID(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.ChannelID() != "1473681228.6" {
		t.Error("Received:", smaEv.ChannelID())
	}
	ev = make(map[string]interface{}) // Clear previous data
	if err := json.Unmarshal([]byte("{}"), &ev); err != nil {
		t.Error(err)
	}
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.ChannelID() != "" {
		t.Error("Received:", smaEv.ChannelID())
	}
}

func TestSMAEventOriginatorIP(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.OriginatorIP() != "127.0.0.1" {
		t.Error("Received:", smaEv.OriginatorIP())
	}
}

func TestSMAEventAccount(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Account() != "1001" {
		t.Error("Received:", smaEv.Account())
	}
	ev = make(map[string]interface{}) // Clear previous data
	if err := json.Unmarshal([]byte("{}"), &ev); err != nil {
		t.Error(err)
	}
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Account() != "" {
		t.Error("Received:", smaEv.Account())
	}
}

func TestSMAEventDestination(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Destination() != "1002" {
		t.Error("Received:", smaEv.Destination())
	}
	ev = make(map[string]interface{}) // Clear previous data
	if err := json.Unmarshal([]byte("{}"), &ev); err != nil {
		t.Error(err)
	}
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Destination() != "" {
		t.Error("Received:", smaEv.Destination())
	}
}

func TestSMAEventTimestamp(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Timestamp() != "2016-09-12T13:53:48.919+0200" {
		t.Error("Received:", smaEv.Timestamp())
	}
	ev = make(map[string]interface{}) // Clear previous data
	if err := json.Unmarshal([]byte("{}"), &ev); err != nil {
		t.Error(err)
	}
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Timestamp() != "" {
		t.Error("Received:", smaEv.Timestamp())
	}
}

func TestSMAEventChannelState(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(channelStateChange), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.ChannelState() != "Up" {
		t.Error("Received:", smaEv.ChannelState())
	}
	ev = make(map[string]interface{}) // Clear previous data
	if err := json.Unmarshal([]byte("{}"), &ev); err != nil {
		t.Error(err)
	}
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.ChannelState() != "" {
		t.Error("Received:", smaEv.ChannelState())
	}
}

func TestSMASetupTime(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(channelStateChange), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.SetupTime() != "2016-09-12T13:53:48.918+0200" {
		t.Error("Received:", smaEv.SetupTime())
	}
	ev = make(map[string]interface{}) // Clear previous data
	if err := json.Unmarshal([]byte("{}"), &ev); err != nil {
		t.Error(err)
	}
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.SetupTime() != "" {
		t.Error("Received:", smaEv.SetupTime())
	}
}

func TestSMAEventRequestType(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.RequestType() != "*prepaid" {
		t.Error("Received:", smaEv.RequestType())
	}
	ev = make(map[string]interface{}) // Clear previous data
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.RequestType() != "" {
		t.Error("Received:", smaEv.RequestType())
	}
}

func TestSMAEventTenant(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Tenant() != "" {
		t.Error("Received:", smaEv.Tenant())
	}
	ev = map[string]interface{}{"args": []interface{}{"cgr_tenant=cgrates.org"}} // Clear previous data
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Tenant() != "cgrates.org" {
		t.Error("Received:", smaEv.Tenant())
	}
}

func TestSMAEventCategory(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Category() != "" {
		t.Error("Received:", smaEv.Category())
	}
	ev = map[string]interface{}{"args": []interface{}{"cgr_category=premium_call"}} // Clear previous data
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Category() != "premium_call" {
		t.Error("Received:", smaEv.Category())
	}
}

func TestSMAEventSubject(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Subject() != "" {
		t.Error("Received:", smaEv.Subject())
	}
	ev = map[string]interface{}{"args": []interface{}{"cgr_subject=dan"}} // Clear previous data
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Subject() != "dan" {
		t.Error("Received:", smaEv.Subject())
	}
}

func TestSMAEventPDD(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.PDD() != "" {
		t.Error("Received:", smaEv.PDD())
	}
	ev = map[string]interface{}{"args": []interface{}{"cgr_pdd=2.1"}} // Clear previous data
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.PDD() != "2.1" {
		t.Error("Received:", smaEv.PDD())
	}
}

func TestSMAEventSupplier(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Supplier() != "supplier1" {
		t.Error("Received:", smaEv.Supplier())
	}
	ev = map[string]interface{}{"args": []interface{}{"cgr_supplier=supplier1"}} // Clear previous data
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.Supplier() != "supplier1" {
		t.Error("Received:", smaEv.Supplier())
	}
}

func TestSMAEventDisconnectCause(t *testing.T) {
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.DisconnectCause() != "" {
		t.Error("Received:", smaEv.DisconnectCause())
	}
	ev = map[string]interface{}{"args": []interface{}{"cgr_disconnectcause=NORMAL_DISCONNECT"}} // Clear previous data
	smaEv = NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.DisconnectCause() != "NORMAL_DISCONNECT" {
		t.Error("Received:", smaEv.DisconnectCause())
	}
}

func TestSMAEventExtraParameters(t *testing.T) {
	expExtraParams := map[string]string{
		"extra1": "val1",
		"extra2": "val2",
	}
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if smaEv.PDD() != "" {
		t.Error("Received:", smaEv.PDD())
	}
	if extraParams := smaEv.ExtraParameters(); !reflect.DeepEqual(expExtraParams, extraParams) {
		t.Errorf("Expecting: %+v, received: %+v", expExtraParams, extraParams)
	}
}

func TestSMAEventV1AuthorizeArgs(t *testing.T) {
	timezone := config.CgrConfig().GeneralCfg().DefaultTimezone
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	cgrEv, err := smaEv.AsCGREvent(timezone)
	if err != nil {
		t.Error(err)
	}
	exp := &sessions.V1AuthorizeArgs{
		GetMaxUsage: true,
		CGREvent:    *cgrEv,
	}
	if rcv := smaEv.V1AuthorizeArgs(); !reflect.DeepEqual(exp.GetMaxUsage, rcv.GetMaxUsage) {
		t.Errorf("Expecting: %+v, received: %+v", exp.GetMaxUsage, rcv.GetMaxUsage)
	}

	stasisStart2 := `{"type":"StasisStart","timestamp":"2018-11-25T05:03:26.464-0500","args":["cgr_reqtype=*prepaid","cgr_supplier=supplier1","cgr_subsystems=*accounts*attributes*resources*stats*suppliers*thresholds"],"channel":{"id":"1543140206.0","dialplan":{"context":"internal","exten":"1002","priority":4},"caller":{"name":"","number":"1001"},"name":"PJSIP/1001-00000000","state":"Ring","connected":{"name":"","number":""},"language":"en","accountcode":"","creationtime":"2018-11-25T05:03:26.463-0500"},"asterisk_id":"08:00:27:b7:b8:1f","application":"cgrates_auth"}`
	var ev2 map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart2), &ev2); err != nil {
		t.Error(err)
	}
	smaEv2 := NewSMAsteriskEvent(ev2, "127.0.0.1")
	smaEv2.parseStasisArgs()
	cgrEv2, err := smaEv2.AsCGREvent(timezone)
	if err != nil {
		t.Error(err)
	}

	exp2 := &sessions.V1AuthorizeArgs{
		GetAttributes:      true,
		AuthorizeResources: true,
		GetMaxUsage:        true,
		ProcessThresholds:  true,
		ProcessStats:       true,
		GetSuppliers:       true,
		CGREvent:           *cgrEv2,
	}
	if rcv := smaEv2.V1AuthorizeArgs(); !reflect.DeepEqual(exp2.GetAttributes, rcv.GetAttributes) {
		t.Errorf("Expecting: %+v, received: %+v", exp2.GetAttributes, rcv.GetAttributes)
	} else if !reflect.DeepEqual(exp2.AuthorizeResources, rcv.AuthorizeResources) {
		t.Errorf("Expecting: %+v, received: %+v", exp2.AuthorizeResources, rcv.AuthorizeResources)
	} else if !reflect.DeepEqual(exp2.GetMaxUsage, rcv.GetMaxUsage) {
		t.Errorf("Expecting: %+v, received: %+v", exp2.GetMaxUsage, rcv.GetMaxUsage)
	} else if !reflect.DeepEqual(exp2.ProcessThresholds, rcv.ProcessThresholds) {
		t.Errorf("Expecting: %+v, received: %+v", exp2.ProcessThresholds, rcv.ProcessThresholds)
	} else if !reflect.DeepEqual(exp2.ProcessStats, rcv.ProcessStats) {
		t.Errorf("Expecting: %+v, received: %+v", exp2.ProcessStats, rcv.ProcessStats)
	}
}

func TestSMAEventV1InitSessionArgs(t *testing.T) {
	cgrEv := utils.CGREvent{
		Tenant: "cgrates.org",
		ID:     "AsteriskEvent",
		Event: map[string]interface{}{
			"MissingCGRSubsustems": "",
		},
	}
	exp := &sessions.V1InitSessionArgs{
		InitSession: true,
		CGREvent:    cgrEv,
	}
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if rcv := smaEv.V1InitSessionArgs(utils.CGREventWithArgDispatcher{CGREvent: &cgrEv}); !reflect.DeepEqual(exp, rcv) {
		t.Errorf("Expecting: %+v, received: %+v", utils.ToJSON(exp), utils.ToJSON(rcv))
	}

	exp2 := &sessions.V1InitSessionArgs{
		GetAttributes:     true,
		AllocateResources: true,
		InitSession:       true,
		CGREvent:          cgrEv,
	}
	cgrEv.Event[utils.CGRSubsystems] = "*resources*accounts*attributes"
	if rcv := smaEv.V1InitSessionArgs(utils.CGREventWithArgDispatcher{CGREvent: &cgrEv}); !reflect.DeepEqual(exp2, rcv) {
		t.Errorf("Expecting: %+v, received: %+v", utils.ToJSON(exp2), utils.ToJSON(rcv))
	}
}

func TestSMAEventV1TerminateSessionArgs(t *testing.T) {
	cgrEv := utils.CGREvent{
		Tenant: "cgrates.org",
		ID:     "AsteriskEvent",
		Event: map[string]interface{}{
			"MissingCGRSubsustems": "",
		},
	}
	exp := &sessions.V1TerminateSessionArgs{
		TerminateSession: true,
		CGREvent:         cgrEv,
	}
	var ev map[string]interface{}
	if err := json.Unmarshal([]byte(stasisStart), &ev); err != nil {
		t.Error(err)
	}
	smaEv := NewSMAsteriskEvent(ev, "127.0.0.1")
	if rcv := smaEv.V1TerminateSessionArgs(utils.CGREventWithArgDispatcher{CGREvent: &cgrEv}); !reflect.DeepEqual(exp, rcv) {
		t.Errorf("Expecting: %+v, received: %+v", utils.ToJSON(exp), utils.ToJSON(rcv))
	}

	exp2 := &sessions.V1TerminateSessionArgs{
		TerminateSession: true,
		ReleaseResources: true,
		ProcessStats:     true,
		CGREvent:         cgrEv,
	}
	cgrEv.Event[utils.CGRSubsystems] = "*resources*accounts*stats"
	if rcv := smaEv.V1TerminateSessionArgs(utils.CGREventWithArgDispatcher{CGREvent: &cgrEv}); !reflect.DeepEqual(exp2, rcv) {
		t.Errorf("Expecting: %+v, received: %+v", utils.ToJSON(exp2), utils.ToJSON(rcv))
	}
}