feat: initial commit

internal/setup/registry.go

@@ -0,0 +1,44 @@
+package setup
+
+import (
+	"net/url"
+
+	"github.com/pkg/errors"
+)
+
+var ErrNotRegistered = errors.New("not registered")
+
+type Factory[T any] func(u *url.URL) (T, error)
+
+type Registry[T any] struct {
+	mappings map[string]Factory[T]
+}
+
+func (r *Registry[T]) Register(scheme string, factory Factory[T]) {
+	r.mappings[scheme] = factory
+}
+
+func (r *Registry[T]) From(rawURL string) (T, error) {
+	u, err := url.Parse(rawURL)
+	if err != nil {
+		return *new(T), errors.WithStack(err)
+	}
+
+	factory, exists := r.mappings[u.Scheme]
+	if !exists {
+		return *new(T), errors.Wrapf(ErrNotRegistered, "scheme '%s' not found", u.Scheme)
+	}
+
+	value, err := factory(u)
+	if err != nil {
+		return *new(T), errors.WithStack(err)
+	}
+
+	return value, nil
+}
+
+func NewRegistry[T any]() *Registry[T] {
+	return &Registry[T]{
+		mappings: make(map[string]Factory[T]),
+	}
+}