Add some conifguration and logging for the hub

registrar/internal/persistence/fake_repo.go

@@ -0,0 +1,66 @@
+package persistence
+
+import (
+	"github.com/google/uuid"
+	svc "go.fixergrid.net/servicedemon/registrar/internal/services"
+)
+
+type FakeRepo struct {
+	apps []*svc.Application
+}
+
+func NewFakeRepo() *FakeRepo {
+	return &FakeRepo{
+		apps: make([]*svc.Application, 0),
+	}
+}
+func (repo FakeRepo) IsRegistered(name string) bool {
+	for _, app := range repo.apps {
+		if name == app.Name && app.State == "registered" {
+			return true
+		}
+	}
+	return false
+}
+
+func (repo FakeRepo) GetApp(name string) (svc.Application, error) {
+	for _, app := range repo.apps {
+		if name == app.Name {
+			return *app, nil
+		}
+	}
+
+	return svc.Application{}, svc.ErrApplicationNotFound
+}
+
+func (repo FakeRepo) PendingApprovalCount() int {
+	count := 0
+	for _, app := range repo.apps {
+		if app.State == "pending_approval" {
+			count += 1
+		}
+	}
+	return count
+}
+
+func (repo *FakeRepo) StartAppRegistration(name string) uuid.UUID {
+	newApp := &svc.Application{
+		ID:    uuid.New(),
+		Name:  name,
+		State: "pending_approval",
+	}
+	repo.apps = append(repo.apps, newApp)
+	return newApp.ID
+}
+
+func (repo *FakeRepo) ApproveApp(id uuid.UUID) (svc.Application, error) {
+	for _, application := range repo.apps {
+		if application.ID == id {
+			application.State = "registered"
+			return *application, nil
+		}
+	}
+
+	return svc.Application{}, svc.ErrApplicationNotFound
+
+}

registrar/internal/services/app_registration.go

@@ -0,0 +1,2 @@
+package services
+

registrar/internal/services/approvals.go

@@ -0,0 +1,5 @@
+package services
+
+type ApprovalRequester interface {
+	SendApprovalRequest(appName string) error
+}

registrar/internal/services/pubsub.go

@@ -0,0 +1,14 @@
+package services
+
+type Publisher interface {
+	Publish(topic string, message string)
+}
+
+type PubSub interface {
+	Publisher
+	Subscriber
+}
+
+type Subscriber interface {
+	Subscribe(topic string) <-chan string
+}

registrar/internal/services/repo.go

@@ -0,0 +1,27 @@
+package services
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/google/uuid"
+)
+
+var (
+	ErrAppRepo             = errors.New("AppRepo")
+	ErrApplicationNotFound = fmt.Errorf("%w: application not found", ErrAppRepo)
+)
+
+type Application struct {
+	ID    uuid.UUID
+	Name  string
+	State string
+}
+
+type AppRepo interface {
+	IsRegistered(name string) bool
+	PendingApprovalCount() int
+	GetApp(name string) (Application, error)
+	StartAppRegistration(name string) uuid.UUID
+	ApproveApp(id uuid.UUID) (Application, error)
+}