Initial QSfera import

Server/services/idp/pkg/assets/option.go

@@ -0,0 +1,58 @@
+package assets
+
+import (
+	"net/http"
+
+	"github.com/qsfera/server/pkg/log"
+	"github.com/qsfera/server/pkg/x/io/fsx"
+	"github.com/qsfera/server/services/idp"
+	"github.com/qsfera/server/services/idp/pkg/config"
+)
+
+// New returns a new http filesystem to serve assets.
+func New(opts ...Option) http.FileSystem {
+	options := newOptions(opts...)
+
+	var assetFS fsx.FS = fsx.NewBasePathFs(fsx.FromIOFS(idp.Assets), "assets")
+
+	// only use a fsx.NewFallbackFS and fsx.OsFs if a path is set, use the embedded fs only otherwise
+	if options.Config.Asset.Path != "" {
+		assetFS = fsx.NewFallbackFS(fsx.NewBasePathFs(fsx.NewOsFs(), options.Config.Asset.Path), assetFS)
+	}
+
+	return http.FS(assetFS.IOFS())
+}
+
+// Option defines a single option function.
+type Option func(o *Options)
+
+// Options define the available options for this package.
+type Options struct {
+	Logger log.Logger
+	Config *config.Config
+}
+
+// newOptions initializes the available default options.
+func newOptions(opts ...Option) Options {
+	opt := Options{}
+
+	for _, o := range opts {
+		o(&opt)
+	}
+
+	return opt
+}
+
+// Logger provides a function to set the logger option.
+func Logger(val log.Logger) Option {
+	return func(o *Options) {
+		o.Logger = val
+	}
+}
+
+// Config provides a function to set the config option.
+func Config(val *config.Config) Option {
+	return func(o *Options) {
+		o.Config = val
+	}
+}