resolver: Use custom template

internal/dis/component/resolver/resolver.go

@@ -10,15 +10,21 @@ import (
 	"github.com/FAU-CDI/wdresolve"
 	"github.com/FAU-CDI/wdresolve/resolvers"
 	"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/control/static"
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/control/static/custom"
 	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances"
+	"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
 	"github.com/FAU-CDI/wisski-distillery/pkg/lazy"
 	"github.com/rs/zerolog"
+
+	_ "embed"
 )
 
 type Resolver struct {
 	component.Base
 	Dependencies struct {
 		Instances *instances.Instances
+		Custom    *custom.Custom
 	}
 
 	prefixes        lazy.Lazy[map[string]string] // cached prefixes (from the server)
@@ -39,11 +45,30 @@ func (resolver *Resolver) Routes() component.Routes {
 	}
 }
 
+//go:embed "resolver.html"
+var resolverHTMLStr string
+var resolverTemplate = static.AssetsHome.MustParseShared("resolver.html", resolverHTMLStr)
+
+type resolverContext struct {
+	custom.BaseContext
+	wdresolve.IndexContext
+}
+
 func (resolver *Resolver) HandleRoute(ctx context.Context, route string) (http.Handler, error) {
+	resolverTemplate := resolver.Dependencies.Custom.Template(resolverTemplate)
+
 	logger := zerolog.Ctx(ctx)
 
 	var err error
 	return resolver.handler.Get(func() (p wdresolve.ResolveHandler) {
+		p.HandleIndex = func(context wdresolve.IndexContext, w http.ResponseWriter, r *http.Request) {
+			ctx := resolverContext{
+				IndexContext: context,
+			}
+			resolver.Dependencies.Custom.Update(&ctx, r)
+
+			httpx.WriteHTML(ctx, nil, resolverTemplate, "", w, r)
+		}
 		p.TrustXForwardedProto = true
 
 		fallback := &resolvers.Regexp{