got rid of redundancies

src/WAConnection/0.Base.ts

@@ -254,7 +254,7 @@ export class WAConnection extends EventEmitter {
         this.msgCount += 1 // increment message count, it makes the 'epoch' field when sending binary messages
         return this.conn.send(m)
     }
-    protected async waitForConnection (waitForOpen: boolean) {
+    protected async waitForConnection (waitForOpen: boolean=true) {
         if (!waitForOpen || this.state === 'open') return
 
         const timeout = this.pendingRequestTimeoutMs 
@@ -298,6 +298,7 @@ export class WAConnection extends EventEmitter {
 
         Object.keys(this.callbacks).forEach(key => {
             if (!key.includes('function:')) {
+                this.log (`cancelling message wait: ${key}`, MessageLogLevel.info)
                 this.callbacks[key].errCallback(new Error('closed'))
                 delete this.callbacks[key]
             }

src/WAConnection/3.Connect.ts

@@ -129,6 +129,10 @@ export class WAConnection extends Base {
                         chat.t = +chat.t
                         chat.count = +chat.count
                         chat.messages = []
+                        
+                        const oldChat = this.chats.get(chat.jid) 
+                        oldChat && this.chats.delete (oldChat)
+
                         this.chats.insert (chat) // chats data (log json to see what it looks like)
                     })
                     

src/WAConnection/4.Events.ts

@@ -129,7 +129,7 @@ export class WAConnection extends Base {
             if (!chat) return
             
             this.emit ('message-update', update) 
-            this.chatUpdatedMessage (update.ids, update.type, chat)
+            this.chatUpdatedMessage (update.ids, update.type as number, chat)
         }
         this.registerCallback('Msg', func)
         this.registerCallback('MsgInfo', func)
@@ -194,7 +194,7 @@ export class WAConnection extends Base {
                             to: message.key.remoteJid,
                             ids: [message.key.id],
                             timestamp: new Date(),
-                            type: -1
+                            type: 'delete'
                         }
                         this.emit ('message-update', update)
                     }

src/WAConnection/6.MessagesSend.ts

@@ -39,6 +39,16 @@ export class WAConnection extends Base {
         type: MessageType,
         options: MessageOptions = {},
     ) {
+        const content = await this.prepareMessageContent (
+            message,
+            type,
+            options
+        )
+        const preparedMessage = this.prepareMessageFromContent(id, content, options)
+        return preparedMessage
+    }
+    /** Prepares the message content */
+    async prepareMessageContent (message: string | WATextMessage | WALocationMessage | WAContactMessage | Buffer, type: MessageType, options: MessageOptions) {
         let m: WAMessageContent = {}
         switch (type) {
             case MessageType.text:
@@ -59,13 +69,13 @@ export class WAConnection extends Base {
                 m.contactMessage = message as WAContactMessage
                 break
             default:
-                m = await this.prepareMediaMessage(message as Buffer, type, options)
+                m = await this.prepareMessageMedia(message as Buffer, type, options)
                 break
         }
-        return this.generateWAMessage(id, m, options)
+        return m
     }
     /** Prepare a media message for sending */
-    async prepareMediaMessage(buffer: Buffer, mediaType: MessageType, options: MessageOptions = {}) {
+    async prepareMessageMedia(buffer: Buffer, mediaType: MessageType, options: MessageOptions = {}) {
         if (mediaType === MessageType.document && !options.mimetype) {
             throw new Error('mimetype required to send a document')
         }
@@ -126,8 +136,8 @@ export class WAConnection extends Base {
         }
         return message as WAMessageContent
     }
-    /** generates a WAMessage from the given content & options */
-    generateWAMessage(id: string, message: WAMessageContent, options: MessageOptions) {
+    /** prepares a WAMessage for sending from the given content & options */
+    prepareMessageFromContent(id: string, message: WAMessageContent, options: MessageOptions) {
         if (!options.timestamp) options.timestamp = new Date() // set timestamp to now
         
         // prevent an annoying bug (WA doesn't accept sending messages with '@c.us')

src/WAConnection/7.MessagesExtra.ts

@@ -227,7 +227,7 @@ export class WAConnection extends Base {
                 type: WAMessageProto.ProtocolMessage.PROTOCOL_MESSAGE_TYPE.REVOKE
             }
         }
-        const waMessage = this.generateWAMessage (id, json, {})
+        const waMessage = this.prepareMessageFromContent (id, json, {})
         await this.relayWAMessage (waMessage)
         return waMessage
     }
@@ -254,7 +254,7 @@ export class WAConnection extends Base {
         if (score > 0) content[key].contextInfo = { forwardingScore: score, isForwarded: true }
         else content[key].contextInfo = {}
         
-        const waMessage = this.generateWAMessage (id, content, {}) 
+        const waMessage = this.prepareMessageFromContent (id, content, {}) 
         await this.relayWAMessage (waMessage)
         return waMessage
     }

src/WAConnection/Constants.ts

@@ -189,12 +189,6 @@ export enum Presence {
     recording = 'recording', // "recording..."
     paused = 'paused', // I have no clue
 }
-/** Status of a message sent or received */
-export enum MessageStatus {
-    sent = 'sent',
-    received = 'received',
-    read = 'read',
-}
 /** Set of message types that are supported by the library */
 export enum MessageType {
     text = 'conversation',
@@ -274,7 +268,7 @@ export interface MessageStatusUpdate {
     /** Message IDs read/delivered */
     ids: string[]
     /** Status of the Message IDs */
-    type: WA_MESSAGE_STATUS_TYPE
+    type: WA_MESSAGE_STATUS_TYPE | 'delete'
 }
 export enum GroupSettingChange {
     messageSend = 'announcement',