refactor: remove empty services (#116)

* remove empty services

* remove old factory

* remove old static files

* cleanup more duplicate service code

* file/folder reorg

backend/app/tools/migrations/main.go

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+
+	"github.com/hay-kot/homebox/backend/internal/data/ent/migrate"
+
+	atlas "ariga.io/atlas/sql/migrate"
+	_ "ariga.io/atlas/sql/sqlite"
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql/schema"
+	_ "github.com/mattn/go-sqlite3"
+)
+
+func main() {
+	ctx := context.Background()
+	// Create a local migration directory able to understand Atlas migration file format for replay.
+	dir, err := atlas.NewLocalDir("internal/data/migrations/migrations")
+	if err != nil {
+		log.Fatalf("failed creating atlas migration directory: %v", err)
+	}
+	// Migrate diff options.
+	opts := []schema.MigrateOption{
+		schema.WithDir(dir),                         // provide migration directory
+		schema.WithMigrationMode(schema.ModeReplay), // provide migration mode
+		schema.WithDialect(dialect.SQLite),          // Ent dialect to use
+		schema.WithFormatter(atlas.DefaultFormatter),
+		schema.WithDropIndex(true),
+		schema.WithDropColumn(true),
+	}
+	if len(os.Args) != 2 {
+		log.Fatalln("migration name is required. Use: 'go run -mod=mod ent/migrate/main.go <name>'")
+	}
+
+	// Generate migrations using Atlas support for MySQL (note the Ent dialect option passed above).
+	err = migrate.NamedDiff(ctx, "sqlite://.data/homebox.migration.db?_fk=1", os.Args[1], opts...)
+	if err != nil {
+		log.Fatalf("failed generating migration file: %v", err)
+	}
+}