Initial commit.

server/internal/services/core/datastore.go

@@ -0,0 +1,16 @@
+package core
+
+import "errors"
+
+// ServiceNameDatastore is a service name for data storage implementation.
+const ServiceNameDatastore = "datastore"
+
+var (
+	// ErrDatastore indicates that error appeared somewhere in data storage service.
+	ErrDatastore = errors.New("datastore")
+	// ErrDatastoreServiceIsInvalid appears when data storage implementation isn't conforming to interface.
+	ErrDatastoreServiceIsInvalid = errors.New("invalid datastore implementation")
+)
+
+// DataStore is an interface for data storage implementations.
+type DataStore interface{}

server/internal/services/core/datastore/datastore.go

@@ -0,0 +1,48 @@
+package datastore
+
+import (
+	"fmt"
+	"log/slog"
+
+	"go.dev.pztrn.name/featurer/server/internal/application"
+	"go.dev.pztrn.name/featurer/server/internal/services/core"
+)
+
+type datastore struct {
+	app *application.Application
+}
+
+// Initialize initializes service.
+func Initialize(app *application.Application) error {
+	plan := &datastore{
+		app: app,
+	}
+
+	if err := app.RegisterService(plan); err != nil {
+		return fmt.Errorf("%w: %w", core.ErrDatastore, err)
+	}
+
+	return nil
+}
+
+func (p *datastore) ConnectDependencies() error {
+	return nil
+}
+
+func (p *datastore) GetName() string {
+	return core.ServiceNameDatastore
+}
+
+func (p *datastore) Initialize() error {
+	slog.Info("Initializing data storage...")
+
+	return nil
+}
+
+func (p *datastore) LaunchStartupTasks() error {
+	return nil
+}
+
+func (p *datastore) Shutdown() error {
+	return nil
+}