TP-50597 | implemented get rca link api to support showing rca link in ui (#310)

* TP-38709 | Merging the changes to master on the logfix

* TP-50597 | Impelemented get rca link api to support Houston UI

* TP-50597 | Modified incident response to return rca link if exists or else return blank value

* TP-50597 | removed dead code

* TP-50597 | reverted changes for create incident workflow

* TP-50597 | removed cyclic dependency and added unit tests

appcontext/app.go

@@ -9,8 +9,14 @@ import (
 	"houston/model/severity"
 	"houston/model/tag"
 	"houston/model/team"
+	"houston/model/user"
 	"houston/pkg/postgres"
+	"houston/pkg/rest"
+	rcaRepository "houston/repository/rca/impl"
+	"houston/repository/rcaInput"
+	"houston/service/documentService"
 	incidentService "houston/service/incident"
+	"houston/service/rca"
 	"houston/service/slack"
 )
 
@@ -20,13 +26,17 @@ type applicationContext struct {
 
 // todo: all the repo objects to be cleaned uo from here. appContext will only have services
 type houstonServices struct {
-	logRepo         *log.Repository
-	teamRepo        *team.Repository
-	severityRepo    *severity.Repository
-	incidentRepo    *incident.Repository
-	slackService    *slack.SlackService
-	incidentService *incidentService.IncidentServiceV2
-	tagRepo         *tag.Repository
+	logRepo            *log.Repository
+	teamRepo           *team.Repository
+	severityRepo       *severity.Repository
+	incidentRepo       *incident.Repository
+	slackService       *slack.SlackService
+	incidentService    *incidentService.IncidentServiceV2
+	tagRepo            *tag.Repository
+	rcaRepository      *rcaRepository.Repository
+	rcaInputRepository *rcaInput.Repository
+	userRepository     *user.Repository
+	rcaService         *rca.RcaService
 }
 
 var appContext *applicationContext
@@ -44,13 +54,17 @@ func InitializeServices() {
 	teamRepo := initTeamRepo(logRepo)
 	slaService := initSlackService()
 	services = &houstonServices{
-		logRepo:         logRepo,
-		teamRepo:        teamRepo,
-		severityRepo:    severityRepo,
-		incidentRepo:    initIncidentRepo(severityRepo, logRepo, teamRepo, slaService.SocketModeClientWrapper.GetClient()),
-		slackService:    slaService,
-		incidentService: initIncidentService(),
-		tagRepo:         initTagRepo(),
+		logRepo:            logRepo,
+		teamRepo:           teamRepo,
+		severityRepo:       severityRepo,
+		incidentRepo:       initIncidentRepo(severityRepo, logRepo, teamRepo, slaService.SocketModeClientWrapper.GetClient()),
+		slackService:       slaService,
+		incidentService:    initIncidentService(),
+		tagRepo:            initTagRepo(),
+		rcaRepository:      initRCARepo(),
+		rcaInputRepository: initRCAInputRepo(),
+		userRepository:     initUserRepo(),
+		rcaService:         initRCAService(),
 	}
 }
 
@@ -109,6 +123,23 @@ func initSlackService() *slack.SlackService {
 	return slack.NewSlackService()
 }
 
+func getRestClient() *rest.HttpRestClientImpl {
+	return rest.NewHttpRestClient()
+}
+
+func initDocumentService() *documentService.ActionsImpl {
+	return documentService.NewActionsImpl(getRestClient())
+}
+
+func GetDocumentService() *documentService.ActionsImpl {
+	return initDocumentService()
+}
+
+func initRCAService() *rca.RcaService {
+	rcaService := rca.NewRcaService(initIncidentService(), initSlackService(), getRestClient(), initDocumentService(), initRCARepo(), initRCAInputRepo(), initUserRepo())
+	return rcaService
+}
+
 func GetSlackService() *slack.SlackService {
 	return services.slackService
 }
@@ -121,6 +152,9 @@ func GetIncidentService() *incidentService.IncidentServiceV2 {
 	return services.incidentService
 }
 
+func GetRCAService() *rca.RcaService {
+	return services.rcaService
+}
 func initTagRepo() *tag.Repository {
 	return tag.NewTagRepository(GetDB())
 }
@@ -128,3 +162,27 @@ func initTagRepo() *tag.Repository {
 func GetTagRepo() *tag.Repository {
 	return services.tagRepo
 }
+
+func initRCARepo() *rcaRepository.Repository {
+	return rcaRepository.NewRcaRepository(GetDB())
+}
+
+func GetRCARepo() *rcaRepository.Repository {
+	return services.rcaRepository
+}
+
+func initRCAInputRepo() *rcaInput.Repository {
+	return rcaInput.NewRcaInputRepository(GetDB())
+}
+
+func GetRCAInputRepo() *rcaInput.Repository {
+	return services.rcaInputRepository
+}
+
+func initUserRepo() *user.Repository {
+	return user.NewUserRepository(GetDB())
+}
+
+func GetUserRepo() *user.Repository {
+	return services.userRepository
+}