reactions: support deletions

Signed-off-by: Sumner Evans <sumner.evans@automattic.com>

pkg/connector/tljson/parse.go

@@ -0,0 +1,40 @@
+package tljson
+
+import (
+	"fmt"
+
+	"github.com/gotd/td/tg"
+)
+
+func Parse(v tg.JSONValueClass) (out any, err error) {
+	switch val := v.(type) {
+	case *tg.JSONBool:
+		return val.Value, nil
+	case *tg.JSONNumber:
+		return val.Value, nil
+	case *tg.JSONString:
+		return val.Value, nil
+	case *tg.JSONArray:
+		out := make([]any, len(val.Value))
+		for i, entry := range val.Value {
+			out[i], err = Parse(entry)
+			if err != nil {
+				return nil, err
+			}
+		}
+		return out, nil
+	case *tg.JSONObject:
+		out := make(map[string]any, len(val.Value))
+		for _, entry := range val.Value {
+			out[entry.Key], err = Parse(entry.Value)
+			if err != nil {
+				return nil, err
+			}
+		}
+		return out, nil
+	case *tg.JSONNull:
+		return nil, nil
+	default:
+		return nil, fmt.Errorf("unknown JSON value type %T", v)
+	}
+}