feat: image gallery (#2)

Reviewed-on: #2

internal/handlers/restgallery/resource.go

@@ -0,0 +1,40 @@
+package restgallery
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/gallery"
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/pkg/config"
+	"github.com/a-h/templ"
+)
+
+type Handler struct {
+	http.Handler
+	srv galleryService
+	r   renderer
+	cfg *config.Gallery
+}
+
+func New(renderer renderer, srv galleryService, cfg *config.Gallery) *Handler {
+	mux := http.NewServeMux()
+	h := &Handler{
+		Handler: mux,
+		srv:     srv,
+		r:       renderer,
+		cfg:     cfg,
+	}
+
+	mux.HandleFunc(fmt.Sprintf("GET /%s", url.PathEscape(cfg.Path)), h.gallery)
+	return h
+}
+
+type galleryService interface {
+	GetGallerySet(ctx context.Context) (gallerySet gallery.Set, err error)
+}
+type renderer interface {
+	Render(ctx context.Context, w io.Writer, r *http.Request, component templ.Component)
+}