Move encodeRelated into client

Author: benedikt-schaber

client/basic/client.ts

@@ -1,6 +1,5 @@
 import type { ResolvedSendConfig } from "../../config/mail/mod.ts";
 import { ResolvedClientOptions } from "../../config/client.ts";
-import { encodeRelated } from "./encode/related.ts";
 import { SMTPConnection } from "./connection.ts";
 import { QUE } from "./QUE.ts";
 
@@ -247,7 +246,7 @@ export class SMTPClient {
       for (let i = 0; i < config.mimeContent.length; i++) {
         writeCMD(`--${messageBoundary}`);
         if (config.mimeContent[i].relatedAttachments) {
-          encodeRelated(writeCMD, config.mimeContent[i]);
+          this.encodeRelated(config.mimeContent[i]);
         } else {
           this.encodeContent(config.mimeContent[i]);
         }
@@ -282,6 +281,29 @@ export class SMTPClient {
     }
   }
 
+  encodeRelated(content: Content) {
+    const boundaryAddRel = this.calcBoundary(
+      content.content + "\n" +
+        content.relatedAttachments.map((v) => v.content).join("\n"),
+      new RegExp("--related([0-9]+)", "g"),
+    );
+  
+    const relatedBoundary = `related${boundaryAddRel}`;
+    this.#connection.writeCmd(
+      `Content-Type: multipart/related; boundary=${relatedBoundary}\r\n; type=${content.mimeType}`,
+    );
+  
+    this.#connection.writeCmd(`--${relatedBoundary}`);
+    this.encodeContent(content);
+  
+    for (let i = 0; i < content.relatedAttachments.length; i++) {
+      this.#connection.writeCmd(`--${relatedBoundary}`);
+      this.encodeAttachment(content.relatedAttachments[i]);
+    }
+  
+    this.#connection.writeCmd(`--${relatedBoundary}--\r\n`);
+  }
+
   async #prepareConnection() {
     this.#connection.assertCode(
       await this.#connection.readCmd(),