Rework actions to be loaded dynamically

internal/dis/component/server/admin/socket/actions/purge.go

@@ -0,0 +1,36 @@
+package actions
+
+import (
+	"context"
+	"io"
+
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/auth/scopes"
+	"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances/purger"
+	"github.com/FAU-CDI/wisski-distillery/internal/wisski"
+)
+
+type Purge struct {
+	component.Base
+	dependencies struct {
+		Purger *purger.Purger
+	}
+}
+
+var (
+	_ WebsocketInstanceAction = (*Stop)(nil)
+)
+
+func (*Purge) Action() InstanceAction {
+	return InstanceAction{
+		Action: Action{
+			Name:      "purge",
+			Scope:     scopes.ScopeUserAdmin,
+			NumParams: 0,
+		},
+	}
+}
+
+func (p *Purge) Act(ctx context.Context, instance *wisski.WissKI, in io.Reader, out io.Writer, params ...string) error {
+	return p.dependencies.Purger.Purge(ctx, out, instance.Slug)
+}