XX-4679 / Fix extension loading for channels

wasm/channels.go

@@ -256,13 +256,13 @@ func GetPublicChannelIdentityFromPrivate(_ js.Value, args []js.Value) any {
 //     using [Cmix.GetID].
 //   - args[1] - Bytes of a private identity ([channel.PrivateIdentity]) that is
 //     generated by [GenerateChannelIdentity] (Uint8Array).
-//   - args[2] - JSON of an array of integers of [channels.ExtensionBuilder]
+//   - args[2] - A function that initialises and returns a Javascript object
+//     that matches the [bindings.EventModel] interface. The function must match
+//     the Build function in [bindings.EventModelBuilder].
+//   - args[3] - JSON of an array of integers of [channels.ExtensionBuilder]
 //     IDs. The ID can be retrieved from an object with an extension builder
 //     (e.g., [ChannelsFileTransfer.GetExtensionBuilderID]). Leave empty if not
 //     using extension builders. Example: `[2,11,5]` (Uint8Array).
-//   - args[3] - A function that initialises and returns a Javascript object
-//     that matches the [bindings.EventModel] interface. The function must match
-//     the Build function in [bindings.EventModelBuilder].
 //
 // Returns:
 //   - Javascript representation of the [ChannelsManager] object.
@@ -270,11 +270,11 @@ func GetPublicChannelIdentityFromPrivate(_ js.Value, args []js.Value) any {
 func NewChannelsManager(_ js.Value, args []js.Value) any {
 	cmixId := args[0].Int()
 	privateIdentity := utils.CopyBytesToGo(args[1])
-	extensionBuilderIDsJSON := utils.CopyBytesToGo(args[2])
-	em := newEventModelBuilder(args[3])
+	em := newEventModelBuilder(args[2])
+	extensionBuilderIDsJSON := utils.CopyBytesToGo(args[3])
 
 	cm, err := bindings.NewChannelsManager(
-		cmixId, privateIdentity, extensionBuilderIDsJSON, em)
+		cmixId, privateIdentity, em, extensionBuilderIDsJSON)
 	if err != nil {
 		utils.Throw(utils.TypeError, err)
 		return nil
@@ -296,16 +296,24 @@ func NewChannelsManager(_ js.Value, args []js.Value) any {
 //     using [Cmix.GetID].
 //   - args[1] - The storage tag associated with the previously created channel
 //     manager and retrieved with [ChannelsManager.GetStorageTag] (string).
-//   - args[2] - A function that initialises and returns a Javascript object
+//   - args[2] - A function that initializes and returns a Javascript object
 //     that matches the [bindings.EventModel] interface. The function must match
 //     the Build function in [bindings.EventModelBuilder].
+//   - args[3] - JSON of an array of integers of [channels.ExtensionBuilder]
+//     IDs. The ID can be retrieved from an object with an extension builder
+//     (e.g., [ChannelsFileTransfer.GetExtensionBuilderID]). Leave empty if not
+//     using extension builders. Example: `[2,11,5]`.
 //
 // Returns:
 //   - Javascript representation of the [ChannelsManager] object.
 //   - Throws a TypeError if loading the manager fails.
 func LoadChannelsManager(_ js.Value, args []js.Value) any {
+	cmixID := args[0].Int()
+	storageTag := args[1].String()
 	em := newEventModelBuilder(args[2])
-	cm, err := bindings.LoadChannelsManager(args[0].Int(), args[1].String(), em)
+	extensionBuilderIDsJSON := utils.CopyBytesToGo(args[3])
+	cm, err := bindings.LoadChannelsManager(
+		cmixID, storageTag, em, extensionBuilderIDsJSON)
 	if err != nil {
 		utils.Throw(utils.TypeError, err)
 		return nil