refactor(chatbot): refatorar conexão com PostgreSQL e melhorar tratamento de mensagens

- Alterado método de obtenção da conexão PostgreSQL para ser assíncrono, melhorando a gestão de conexões.
- Implementada lógica de retry para criação de mensagens e conversas, garantindo maior robustez em caso de falhas.
- Ajustadas chamadas de consulta ao banco de dados para utilizar a nova abordagem de conexão.
- Adicionada nova propriedade `messageBodyForRetry` para facilitar o reenvio de mensagens em caso de erro.

Author: Vitordotpy

src/api/integrations/chatbot/chatwoot/services/chatwoot.service.ts

@@ -53,7 +53,9 @@ export class ChatwootService {
     private readonly cache: CacheService,
   ) {}
 
-  private pgClient = postgresClient.getChatwootConnection();
+  private async getPgClient() {
+    return postgresClient.getChatwootConnection();
+  }
 
   private async getProvider(instance: InstanceDto): Promise<ChatwootModel | null> {
     const cacheKey = `${instance.instanceName}:getProvider`;
@@ -382,7 +384,8 @@ export class ChatwootService {
       if (!uri) return false;
 
       const sqlTags = `SELECT id, taggings_count FROM tags WHERE name = $1 LIMIT 1`;
-      const tagData = (await this.pgClient.query(sqlTags, [nameInbox]))?.rows[0];
+      const pgClient = await this.getPgClient();
+      const tagData = (await pgClient.query(sqlTags, [nameInbox]))?.rows[0];
       let tagId = tagData?.id;
       const taggingsCount = tagData?.taggings_count || 0;
 
@@ -392,18 +395,18 @@ export class ChatwootService {
                       DO UPDATE SET taggings_count = tags.taggings_count + 1 
                       RETURNING id`;
 
-      tagId = (await this.pgClient.query(sqlTag, [nameInbox, taggingsCount + 1]))?.rows[0]?.id;
+      tagId = (await pgClient.query(sqlTag, [nameInbox, taggingsCount + 1]))?.rows[0]?.id;
 
       const sqlCheckTagging = `SELECT 1 FROM taggings 
                                WHERE tag_id = $1 AND taggable_type = 'Contact' AND taggable_id = $2 AND context = 'labels' LIMIT 1`;
 
-      const taggingExists = (await this.pgClient.query(sqlCheckTagging, [tagId, contactId]))?.rowCount > 0;
+      const taggingExists = (await pgClient.query(sqlCheckTagging, [tagId, contactId]))?.rowCount > 0;
 
       if (!taggingExists) {
         const sqlInsertLabel = `INSERT INTO taggings (tag_id, taggable_type, taggable_id, context, created_at) 
                                 VALUES ($1, 'Contact', $2, 'labels', NOW())`;
 
-        await this.pgClient.query(sqlInsertLabel, [tagId, contactId]);
+        await pgClient.query(sqlInsertLabel, [tagId, contactId]);
       }
 
       return true;
@@ -861,6 +864,7 @@ export class ChatwootService {
     messageBody?: any,
     sourceId?: string,
     quotedMsg?: MessageModel,
+    messageBodyForRetry?: any,
   ) {
     const client = await this.clientCw(instance);
 
@@ -869,32 +873,66 @@ export class ChatwootService {
       return null;
     }
 
-    const replyToIds = await this.getReplyToIds(messageBody, instance);
+    const doCreateMessage = async (convId: number) => {
+      const replyToIds = await this.getReplyToIds(messageBody, instance);
 
-    const sourceReplyId = quotedMsg?.chatwootMessageId || null;
+      const sourceReplyId = quotedMsg?.chatwootMessageId || null;
 
-    const message = await client.messages.create({
-      accountId: this.provider.accountId,
-      conversationId: conversationId,
-      data: {
-        content: content,
-        message_type: messageType,
-        attachments: attachments,
-        private: privateMessage || false,
-        source_id: sourceId,
-        content_attributes: {
-          ...replyToIds,
+      const message = await client.messages.create({
+        accountId: this.provider.accountId,
+        conversationId: convId,
+        data: {
+          content: content,
+          message_type: messageType,
+          attachments: attachments,
+          private: privateMessage || false,
+          source_id: sourceId,
+          content_attributes: {
+            ...replyToIds,
+          },
+          source_reply_id: sourceReplyId ? sourceReplyId.toString() : null,
         },
-        source_reply_id: sourceReplyId ? sourceReplyId.toString() : null,
-      },
-    });
+      });
 
-    if (!message) {
-      this.logger.warn('message not found');
-      return null;
-    }
+      if (!message) {
+        this.logger.warn('message not found');
+        return null;
+      }
 
-    return message;
+      return message;
+    };
+
+    try {
+      return await doCreateMessage(conversationId);
+    } catch (error) {
+      const errorMessage = error.toString().toLowerCase();
+      const status = error.response?.status;
+      if (errorMessage.includes('not found') || status === 404) {
+        this.logger.warn(`Conversation ${conversationId} not found. Retrying...`);
+        const bodyForRetry = messageBodyForRetry || messageBody;
+
+        if (!bodyForRetry) {
+          this.logger.error('Cannot retry createMessage without a message body for context.');
+          return null;
+        }
+
+        const remoteJid = bodyForRetry.key.remoteJid;
+        const cacheKey = `${instance.instanceName}:createConversation-${remoteJid}`;
+        await this.cache.delete(cacheKey);
+
+        const newConversationId = await this.createConversation(instance, bodyForRetry);
+        if (!newConversationId) {
+          this.logger.error(`Failed to create new conversation for ${remoteJid}`);
+          return null;
+        }
+
+        this.logger.log(`Retrying message creation for ${remoteJid} with new conversation ${newConversationId}`);
+        return await doCreateMessage(newConversationId);
+      } else {
+        this.logger.error(`Error creating message: ${error}`);
+        throw error;
+      }
+    }
   }
 
   public async getOpenConversationByContact(
@@ -987,6 +1025,7 @@ export class ChatwootService {
     messageBody?: any,
     sourceId?: string,
     quotedMsg?: MessageModel,
+    messageBodyForRetry?: any,
   ) {
     if (sourceId && this.isImportHistoryAvailable()) {
       const messageAlreadySaved = await chatwootImport.getExistingSourceIds([sourceId], conversationId);
@@ -997,54 +1036,84 @@ export class ChatwootService {
         }
       }
     }
-    const data = new FormData();
+    const doSendData = async (convId: number) => {
+      const data = new FormData();
 
-    if (content) {
-      data.append('content', content);
-    }
+      if (content) {
+        data.append('content', content);
+      }
 
-    data.append('message_type', messageType);
+      data.append('message_type', messageType);
 
-    data.append('attachments[]', fileStream, { filename: fileName });
+      data.append('attachments[]', fileStream, { filename: fileName });
 
-    const sourceReplyId = quotedMsg?.chatwootMessageId || null;
+      const sourceReplyId = quotedMsg?.chatwootMessageId || null;
 
-    if (messageBody && instance) {
-      const replyToIds = await this.getReplyToIds(messageBody, instance);
+      if (messageBody && instance) {
+        const replyToIds = await this.getReplyToIds(messageBody, instance);
 
-      if (replyToIds.in_reply_to || replyToIds.in_reply_to_external_id) {
-        const content = JSON.stringify({
-          ...replyToIds,
-        });
-        data.append('content_attributes', content);
+        if (replyToIds.in_reply_to || replyToIds.in_reply_to_external_id) {
+          const content = JSON.stringify({
+            ...replyToIds,
+          });
+          data.append('content_attributes', content);
+        }
       }
-    }
 
-    if (sourceReplyId) {
-      data.append('source_reply_id', sourceReplyId.toString());
-    }
+      if (sourceReplyId) {
+        data.append('source_reply_id', sourceReplyId.toString());
+      }
 
-    if (sourceId) {
-      data.append('source_id', sourceId);
-    }
+      if (sourceId) {
+        data.append('source_id', sourceId);
+      }
 
-    const config = {
-      method: 'post',
-      maxBodyLength: Infinity,
-      url: `${this.provider.url}/api/v1/accounts/${this.provider.accountId}/conversations/${conversationId}/messages`,
-      headers: {
-        api_access_token: this.provider.token,
-        ...data.getHeaders(),
-      },
-      data: data,
+      const config = {
+        method: 'post',
+        maxBodyLength: Infinity,
+        url: `${this.provider.url}/api/v1/accounts/${this.provider.accountId}/conversations/${convId}/messages`,
+        headers: {
+          api_access_token: this.provider.token,
+          ...data.getHeaders(),
+        },
+        data: data,
+      };
+
+      const { data: responseData } = await axios.request(config);
+      return responseData;
     };
 
     try {
-      const { data } = await axios.request(config);
-
-      return data;
+      return await doSendData(conversationId);
     } catch (error) {
-      this.logger.error(error);
+      const errorMessage = error.toString().toLowerCase();
+      const status = error.response?.status;
+
+      if (errorMessage.includes('not found') || status === 404) {
+        this.logger.warn(`Conversation ${conversationId} not found. Retrying...`);
+        const bodyForRetry = messageBodyForRetry || messageBody;
+
+        if (!bodyForRetry) {
+          this.logger.error('Cannot retry sendData without a message body for context.');
+          return null;
+        }
+
+        const remoteJid = bodyForRetry.key.remoteJid;
+        const cacheKey = `${instance.instanceName}:createConversation-${remoteJid}`;
+        await this.cache.delete(cacheKey);
+
+        const newConversationId = await this.createConversation(instance, bodyForRetry);
+        if (!newConversationId) {
+          this.logger.error(`Failed to create new conversation for ${remoteJid}`);
+          return null;
+        }
+
+        this.logger.log(`Retrying sendData for ${remoteJid} with new conversation ${newConversationId}`);
+        return await doSendData(newConversationId);
+      } else {
+        this.logger.error(error);
+        return null;
+      }
     }
   }
 
@@ -2032,6 +2101,7 @@ export class ChatwootService {
               body,
               'WAID:' + body.key.id,
               quotedMsg,
+              null,
             );
 
             if (!send) {
@@ -2051,6 +2121,7 @@ export class ChatwootService {
               body,
               'WAID:' + body.key.id,
               quotedMsg,
+              null,
             );
 
             if (!send) {
@@ -2076,6 +2147,7 @@ export class ChatwootService {
               },
               'WAID:' + body.key.id,
               quotedMsg,
+              body,
             );
             if (!send) {
               this.logger.warn('message not sent');
@@ -2132,6 +2204,8 @@ export class ChatwootService {
             instance,
             body,
             'WAID:' + body.key.id,
+            quotedMsg,
+            null,
           );
 
           if (!send) {
@@ -2173,6 +2247,7 @@ export class ChatwootService {
             body,
             'WAID:' + body.key.id,
             quotedMsg,
+            null,
           );
 
           if (!send) {
@@ -2192,6 +2267,7 @@ export class ChatwootService {
             body,
             'WAID:' + body.key.id,
             quotedMsg,
+            null,
           );
 
           if (!send) {
@@ -2262,6 +2338,7 @@ export class ChatwootService {
             },
             'WAID:' + body.key.id,
             null,
+            body,
           );
           if (!send) {
             this.logger.warn('edited message not sent');
@@ -2515,7 +2592,8 @@ export class ChatwootService {
       and created_at >= now() - interval '6h'
       order by created_at desc`;
 
-      const messagesData = (await this.pgClient.query(sqlMessages))?.rows;
+      const pgClient = await this.getPgClient();
+      const messagesData = (await pgClient.query(sqlMessages))?.rows;
       const ids: string[] = messagesData
         .filter((message) => !!message.source_id)
         .map((message) => message.source_id.replace('WAID:', ''));