Initial QSfera import

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

@@ -0,0 +1,87 @@
+package http
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/qsfera/server/pkg/log"
+	"github.com/qsfera/server/services/proxy/pkg/config"
+	"github.com/qsfera/server/services/proxy/pkg/metrics"
+
+	"github.com/justinas/alice"
+	"github.com/spf13/pflag"
+)
+
+// Option defines a single option function.
+type Option func(o *Options)
+
+// Options defines the available options for this package.
+type Options struct {
+	Logger      log.Logger
+	Context     context.Context
+	Config      *config.Config
+	Handler     http.Handler
+	Metrics     *metrics.Metrics
+	Flags       []pflag.Flag
+	Middlewares alice.Chain
+}
+
+// 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
+	}
+}
+
+// Metrics provides a function to set the metrics option.
+func Metrics(val *metrics.Metrics) Option {
+	return func(o *Options) {
+		o.Metrics = 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...)
+	}
+}
+
+// Handler provides a function to set the Handler option.
+func Handler(h http.Handler) Option {
+	return func(o *Options) {
+		o.Handler = h
+	}
+}
+
+// Middlewares provides a function to register middlewares
+func Middlewares(val alice.Chain) Option {
+	return func(o *Options) {
+		o.Middlewares = val
+	}
+}