SRP => BadPractice

Author: mahdipakravan-dev

solid/srp/TemplatingEngineInterface.ts

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+export class TemplatingEngineInterface {
+    render(template : string , params : Array<string>) : string {
+        return `
+            <div>
+                ${params.join(" </br> ")}
+            </div>
+        `
+    }
+}

solid/srp/confirmationMailMailer.ts

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+import { MailerInterface } from "./mailerInterface";
+import { TemplatingEngineInterface } from "./TemplatingEngineInterface";
+import { TranslatorInterface } from "./translatorInterface";
+
+export class User {
+    public getConfirmCode() : string {
+        return Math.floor(Math.random() * 10).toString()
+    }
+
+    public getEmailAddress() : string {
+        return "Mahdi@gmail.com"
+    }
+}
+export class Message {
+    private subject:string;
+    private body:string;
+    private emailAddress:string;
+
+    constructor(
+        subject,
+        body,
+        emailAddress
+    ){
+        this.subject = subject;
+        this.body = body;
+        this.emailAddress = emailAddress;
+    }
+}
+
+class ConfirmationMailMailer {
+    private templating : TemplatingEngineInterface;
+    private translator : TranslatorInterface;
+    private mailer : MailerInterface;
+
+    constructor(
+        templating : TemplatingEngineInterface,
+        translator : TranslatorInterface,
+        mailer : MailerInterface
+    ){
+        this.templating = templating;
+        this.translator = translator;
+        this.mailer = mailer;
+    }
+
+    private createMesssageFor(user : User) : Message {
+        const subject = this.translator.translate("Please Confirm Your Email Address");
+        const body = this.templating.render("mail.confirm" , [
+            "Hello Sir." , 
+            "Thanks For Your Signup !", 
+            `Your Code is ${user.getConfirmCode()}`,
+            "Regards♥"]);
+        return new Message(subject,body,user.getEmailAddress())
+    }
+
+    public sendTo(user : User){
+        const message = this.createMesssageFor(user);
+        this.sendMessage(message);
+    }
+
+    public sendMessage(message : Message) {
+        this.mailer.send(message)
+    }
+
+}

solid/srp/mailerInterface.ts

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+import { Message } from "./confirmationMailMailer";
+
+export class MailerInterface {
+    send(message : Message){
+        
+    }
+}

solid/srp/translatorInterface.ts

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+export class TranslatorInterface {
+    private translate(text : string) {
+        return text;
+    };
+}