refactor(http): implement shared transport and clients (#1288)

* fix(http): flip to a shared transport and clients

* nice threads

* that is terrible

* fake uri for magnet

* lazy locking

* why bother with r's

* flip magic params to struct

* refactor(http-clients): use separate clients with shared transport

* refactor(http-clients): add missing license header

* refactor(http-clients): defer and fix errors

---------

Co-authored-by: ze0s <ze0s@riseup.net>

internal/notification/lunasea.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/autobrr/autobrr/internal/domain"
 	"github.com/autobrr/autobrr/pkg/errors"
+	"github.com/autobrr/autobrr/pkg/sharedhttp"
 
 	"github.com/rs/zerolog"
 )
@@ -26,6 +27,8 @@ type lunaSeaSender struct {
 	log      zerolog.Logger
 	Settings domain.Notification
 	builder  NotificationBuilderPlainText
+
+	httpClient *http.Client
 }
 
 func (s *lunaSeaSender) rewriteWebhookURL(url string) string {
@@ -38,6 +41,10 @@ func NewLunaSeaSender(log zerolog.Logger, settings domain.Notification) domain.N
 		log:      log.With().Str("sender", "lunasea").Logger(),
 		Settings: settings,
 		builder:  NotificationBuilderPlainText{},
+		httpClient: &http.Client{
+			Timeout:   time.Second * 30,
+			Transport: sharedhttp.Transport,
+		},
 	}
 }
 
@@ -64,8 +71,7 @@ func (s *lunaSeaSender) Send(event domain.NotificationEvent, payload domain.Noti
 
 	req.Header.Set("Content-Type", "application/json")
 
-	client := &http.Client{Timeout: 30 * time.Second}
-	res, err := client.Do(req)
+	res, err := s.httpClient.Do(req)
 	if err != nil {
 		s.log.Error().Err(err).Msg("lunasea client request error")
 		return errors.Wrap(err, "could not make request")