Initial QSfera import

Server/services/webfinger/pkg/server/http/option.go

@@ -0,0 +1,85 @@
+package http
+
+import (
+	"context"
+
+	"github.com/qsfera/server/pkg/log"
+	"github.com/qsfera/server/services/webfinger/pkg/config"
+	svc "github.com/qsfera/server/services/webfinger/pkg/service/v0"
+
+	"github.com/spf13/pflag"
+	"go.opentelemetry.io/otel/trace"
+	"go.opentelemetry.io/otel/trace/noop"
+)
+
+// Option defines a single option function.
+type Option func(o *Options)
+
+// Options defines the available options for this package.
+type Options struct {
+	Name          string
+	Namespace     string
+	Logger        log.Logger
+	Context       context.Context
+	Config        *config.Config
+	Flags         []pflag.Flag
+	Service       svc.Service
+	TraceProvider trace.TracerProvider
+}
+
+// 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
+	}
+}
+
+// Context provides a function to set the context option.
+func Context(val context.Context) Option {
+	return func(o *Options) {
+		o.Context = val
+	}
+}
+
+// Config provides a function to set the config option.
+func Config(val *config.Config) Option {
+	return func(o *Options) {
+		o.Config = val
+	}
+}
+
+// Service provides a function to set the service option.
+func Service(val svc.Service) Option {
+	return func(o *Options) {
+		o.Service = val
+	}
+}
+
+// Flags provides a function to set the flags option.
+func Flags(flags ...pflag.Flag) Option {
+	return func(o *Options) {
+		o.Flags = append(o.Flags, flags...)
+	}
+}
+
+// TraceProvider provides a function to configure the trace provider
+func TraceProvider(traceProvider trace.TracerProvider) Option {
+	return func(o *Options) {
+		if traceProvider != nil {
+			o.TraceProvider = traceProvider
+		} else {
+			o.TraceProvider = noop.NewTracerProvider()
+		}
+	}
+}