[MD] Added template support and footers for buttons & templates (#942)

* Added template support and footers for buttons & templates

* Template message readme

src/Types/Message.ts

@@ -50,6 +50,12 @@ type Buttonable = {
     /** add buttons to the message  */
     buttons?: proto.IButton[]
 }
+type Templatable = {
+    /** add buttons to the message (conflicts with normal buttons)*/
+    templateButtons?: proto.IHydratedTemplateButton[]
+
+    footer?: string
+}
 type WithDimensions = {
     width?: number
     height?: number
@@ -60,13 +66,13 @@ export type AnyMediaMessageContent = (
         image: WAMediaUpload
         caption?: string
         jpegThumbnail?: string
-    } & Mentionable & Buttonable & WithDimensions) | 
+    } & Mentionable & Buttonable & Templatable & WithDimensions) | 
     ({
         video: WAMediaUpload
         caption?: string
         gifPlayback?: boolean
         jpegThumbnail?: string
-    } & Mentionable & Buttonable & WithDimensions) | {
+    } & Mentionable & Buttonable & Templatable & WithDimensions) | {
         audio: WAMediaUpload
         /** if set to true, will send as a `voice note` */
         pttAudio?: boolean
@@ -78,14 +84,14 @@ export type AnyMediaMessageContent = (
         document: WAMediaUpload
         mimetype: string
         fileName?: string
-    } & Buttonable)) & 
+    } & Buttonable & Templatable)) & 
     { mimetype?: string }
 
 export type AnyRegularMessageContent = (
     ({
 	    text: string
     } 
-    & Mentionable & Buttonable) | 
+    & Mentionable & Buttonable & Templatable) | 
     AnyMediaMessageContent | 
     {
         contacts: {

src/Utils/messages.ts

@@ -262,8 +262,37 @@ export const generateWAMessageContent = async(
 			
 			Object.assign(buttonsMessage, m)
 		}
+
+		if ('footer' in message && !!message.footer) {
+			buttonsMessage.footerText = message.footer
+		}
+
 		m = { buttonsMessage }
+	} else if ('templateButtons' in message && !!message.templateButtons) {
+		const templateMessage: proto.ITemplateMessage = {
+			hydratedTemplate: {
+				hydratedButtons: message.templateButtons
+			}
+		}
+		
+		if ('text' in message) {
+			templateMessage.hydratedTemplate.hydratedContentText = message.text
+		} else {
+
+			if('caption' in message) {
+				templateMessage.hydratedTemplate.hydratedContentText = message.caption
+			}
+			
+			Object.assign(templateMessage.hydratedTemplate, m)
+		}
+
+		if ('footer' in message && !!message.footer) {
+			templateMessage.hydratedTemplate.hydratedFooterText = message.footer
+		}
+
+		m = { templateMessage }
 	}
+
 	if('viewOnce' in message && !!message.viewOnce) {
 		m = { viewOnceMessage: { message: m } }
 	}