Add support for buttons message (#584)

* Add list message example

* New protobuf extracted by @tulir

It now supported sending for buttonsMessage

* New protobuf by @tulir

* Added support for buttons message

* Sorry i am sleepy.....

* Sorry my typo :3

* just tidying up

README.md

@@ -231,6 +231,36 @@ const vcard = 'BEGIN:VCARD\n' // metadata of the contact card
             + 'TEL;type=CELL;type=VOICE;waid=911234567890:+91 12345 67890\n' // WhatsApp ID + phone number
             + 'END:VCARD'
 const sentMsg  = await conn.sendMessage(id, {displayname: "Jeff", vcard: vcard}, MessageType.contact)
+// send a list message!
+const rows = [
+ {title: 'Row 1', description: "Hello it's description 1", rowId:"rowid1"},
+ {title: 'Row 2', description: "Hello it's description 2", rowId:"rowid2"}
+]
+
+const sections = [{title: "Section 1", rows: rows}]
+
+const button = {
+ buttonText: 'Click Me!',
+ description: "Hello it's list message",
+ sections: sections
+}
+
+const sendMsg = await conn.sendMessage(id, button, MessageType.listMessage)
+
+// send a buttons message!
+const buttons = [
+  {buttonId: 'id1', buttonText: {displayText: 'Button 1'}, type: 1},
+  {buttonId: 'id2', buttonText: {displayText: 'Button 2'}, type: 1}
+]
+
+const buttonMessage = {
+    contentText: "Hi it's button message",
+    footerText: 'Hello World',
+    buttons: buttons,
+    headerType: 1
+}
+
+const sendMsg = await conn.sendMessage(id, buttonMessage, MessageType.buttonsMessage)
 ```
 
 ### Media Messages

src/WAConnection/6.MessagesSend.ts

@@ -11,6 +11,7 @@ import {
     WAContactsArrayMessage,
     WAGroupInviteMessage,
     WAListMessage,
+    WAButtonsMessage,
     WATextMessage,
     WAMessageContent, WAMetric, WAFlag, WAMessage, BaileysError, WA_MESSAGE_STATUS_TYPE, WAMessageProto, MediaConnInfo, MessageTypeProto, URL_REGEX, WAUrlInfo, WA_DEFAULT_EPHEMERAL, WAMediaUpload
 } from './Constants'
@@ -28,7 +29,7 @@ export class WAConnection extends Base {
      */
     async sendMessage(
         id: string,
-        message: string | WATextMessage | WALocationMessage | WAContactMessage | WAContactsArrayMessage | WAGroupInviteMessage | WAMediaUpload | WAListMessage,
+        message: string | WATextMessage | WALocationMessage | WAContactMessage | WAContactsArrayMessage | WAGroupInviteMessage | WAMediaUpload | WAListMessage | WAButtonsMessage,
         type: MessageType,
         options: MessageOptions = {},
     ) {
@@ -67,7 +68,7 @@ export class WAConnection extends Base {
     /** Prepares a message for sending via sendWAMessage () */
     async prepareMessage(
         id: string,
-        message: string | WATextMessage | WALocationMessage | WAContactMessage | WAContactsArrayMessage | WAGroupInviteMessage | WAMediaUpload | WAListMessage,
+        message: string | WATextMessage | WALocationMessage | WAContactMessage | WAContactsArrayMessage | WAGroupInviteMessage | WAMediaUpload | WAListMessage | WAButtonsMessage,
         type: MessageType,
         options: MessageOptions = {},
     ) {
@@ -106,7 +107,7 @@ export class WAConnection extends Base {
         }
     }
     /** Prepares the message content */
-    async prepareMessageContent (message: string | WATextMessage | WALocationMessage | WAContactMessage | WAContactsArrayMessage | WAGroupInviteMessage | WAMediaUpload | WAListMessage, type: MessageType, options: MessageOptions) {
+    async prepareMessageContent (message: string | WATextMessage | WALocationMessage | WAContactMessage | WAContactsArrayMessage | WAGroupInviteMessage | WAMediaUpload | WAListMessage | WAButtonsMessage, type: MessageType, options: MessageOptions) {
         let m: WAMessageContent = {}
         switch (type) {
             case MessageType.text:
@@ -142,6 +143,9 @@ export class WAConnection extends Base {
             case MessageType.listMessage:
                 m.listMessage = WAMessageProto.ListMessage.fromObject(message as any)
                 break
+            case MessageType.buttonsMessage:
+                m.buttonsMessage = WAMessageProto.ButtonsMessage.fromObject(message as any)
+                break
             case MessageType.image:
             case MessageType.sticker:
             case MessageType.document:

src/WAConnection/Constants.ts

@@ -19,6 +19,7 @@ export type WAContactMessage = proto.ContactMessage
 export type WAContactsArrayMessage = proto.ContactsArrayMessage
 export type WAGroupInviteMessage = proto.GroupInviteMessage
 export type WAListMessage = proto.ListMessage
+export type WAButtonsMessage = proto.ButtonsMessage
 export type WAMessageKey = proto.IMessageKey
 export type WATextMessage = proto.ExtendedTextMessage
 export type WAContextInfo = proto.IContextInfo
@@ -333,6 +334,7 @@ export enum MessageType {
     contactsArray = 'contactsArrayMessage',
     groupInviteMessage = 'groupInviteMessage',
     listMessage = 'listMessage',
+    buttonsMessage = 'buttonsMessage',
     location = 'locationMessage',
     liveLocation = 'liveLocationMessage',