sanket3280/code-execution

1const nodemailer = require('nodemailer');2const brevo = require('@getbrevo/brevo');3 4class EmailService {5  constructor() {6    const { config } = require('../config/env.config');7    8    // Silent initialization9    10    if (config.isProduction && config.email.brevo.apiKey) {11      // Production: Brevo API (Works on Render - HTTPS, no port blocking)12      this.fromEmail = config.email.brevo.email;13      this.useBrevoAPI = true;14      15      const apiInstance = new brevo.TransactionalEmailsApi();16      const apiKey = apiInstance.authentications.apiKey;17      apiKey.apiKey = config.email.brevo.apiKey;18      this.brevoClient = apiInstance;19 20    } else {21      // Development: Gmail SMTP (Works on localhost)22      this.fromEmail = config.email.gmail.user;23      this.useBrevoAPI = false;24      25      if (config.email.gmail.user && config.email.gmail.pass) {26        this.transporter = nodemailer.createTransport({27          service: 'gmail',28          auth: {29            user: config.email.gmail.user,30            pass: config.email.gmail.pass31          }32        });33      }34    }35  }36 37  async sendOTP(email, otp, name = null) {38    const { config } = require('../config/env.config');39    if (config.isDevelopment) {40      console.log('📤 Sending OTP to:', email);41    }42    43    // Check if email service is configured44    if (!this.useBrevoAPI && !this.transporter) {45      console.error('❌ Email service not configured. Please set EMAIL_USER and EMAIL_PASS in .env');46      return false;47    }48    49    try {50      const displayName = name || email.split('@')[0];51      const htmlContent = `52        <div style="font-family: Arial, sans-serif; max-width: 600px; margin: 0 auto; padding: 20px;">53          <div style="text-align: center; margin-bottom: 30px;">54            <h1 style="color: #4F46E5; margin: 0;">CodeBattle</h1>55          </div>56          <h2 style="color: #1F2937;">Hi ${displayName},</h2>57          <p style="color: #4B5563; font-size: 16px; line-height: 1.5;">58            Your verification code for CodeBattle:59          </p>60          <div style="background: #F3F4F6; padding: 20px; text-align: center; border-radius: 8px; margin: 30px 0;">61            <div style="font-size: 36px; font-weight: bold; letter-spacing: 8px; color: #4F46E5;">62              ${otp}63            </div>64          </div>65          <p style="color: #6B7280; font-size: 14px;">66            This OTP is valid for <strong>10 minutes</strong>./h1>ou didn't request this, ignore this email.67          </p>68          <hr style="border: none; border-top: 1px solid #E5E7EB; margin: 30px 0;">69          <p style="color: #9CA3AF; font-size: 12px; text-align: center;">70            Best regards,<br>The CodeBattle Team71          </p>72        </div>73      `;74 75      if (this.useBrevoAPI) {76        // Brevo API (Production)77        const sendSmtpEmail = new brevo.SendSmtpEmail();78        sendSmtpEmail.sender = { email: this.fromEmail, name: 'CodeBattle' };79        sendSmtpEmail.to = [{ email: email }];80        sendSmtpEmail.subject = 'CodeBattle - Verification Code';81        sendSmtpEmail.htmlContent = htmlContent;82 83        await this.brevoClient.sendTransacEmail(sendSmtpEmail);84        const { config } = require('../config/env.config');85        if (config.isDevelopment) {86          console.log('✅ OTP sent successfully (Brevo API)');87        }88      } else {89        // Gmail SMTP (Development)90        await this.transporter.sendMail({91          from: `CodeBattle <${this.fromEmail}>`,92          to: email,93          subject: 'CodeBattle - Verification Code',94          html: htmlContent95        });96        const { config } = require('../config/env.config');97        if (config.isDevelopment) {98          console.log('✅ OTP sent successfully (Gmail SMTP)');99        }100      }101      return true;102    } catch (error) {103      console.error('❌ Failed to send OTP:', error.message);104      return false;105    }106  }107 108  async sendWelcomeEmail(email, username) {109    // Check if email service is configured110    if (!this.useBrevoAPI && !this.transporter) {111      console.error('❌ Email service not configured. Please set EMAIL_USER and EMAIL_PASS in .env');112      return false;113    }114    115    try {116      const htmlContent = `117        <div style="font-family: Arial, sans-serif; max-width: 600px; margin: 0 auto; padding: 20px;">118          <div style="text-align: center; margin-bottom: 30px;">119            <h1 style="color: #4F46E5; margin: 0;">CodeBattle Team</h1>120          </div>121          <h2 style="color: #1F2937;">Welcome ${username}! 🎉</h2>122          <p style="color: #4B5563; font-size: 16px; line-height: 1.5;">123            Your account has been created. Start coding now!124          </p>125          <div style="text-align: center; margin: 30px 0;">126            <a href="${process.env.CLIENT_URL || 'http://localhost:3000'}" 127               style="background: #4F46E5; color: white; padding: 12px 30px; text-decoration: none; border-radius: 6px; diline-block; font-weight: bold;">128              Start Coding129            </a>130          </div>131          <hr style="border: none; border-top: 1px solid #E5E7EB; margin: 30px 0;">132          <p style="color: #9CA3AF; font-size: 12px; text-align: center;">133            Best regards,<br>The CodeBattle Team134          </p>135        </div>136      `;137 138      if (this.useBrevoAPI) {139        const sendSmtpEmail = new brevo.SendSmtpEmail();140        sendSmtpEmail.sender = { email: this.fromEmail, name: 'CodeBattle' };141        sendSmtpEmail.to = [{ email: email }];142        sendSmtpEmail.subject = 'Welcome to CodeBattle!';143        sendSmtpEmail.htmlContent = htmlContent;144 145        await this.brevoClient.sendTransacEmail(sendSmtpEmail);146      } else {147        await this.transporter.sendMail({148          from: `CodeBattle <${this.fromEmail}>`,149          to: email,150          subject: 'Welcome to CodeBattle!',151          html: htmlContent152        });153      }154      console.log(`✅ Welcome email sent to ${email}`);155      return true;156    } catch (error) {157      console.error('❌ Failed to send welcome email:', error.message);158      return false;159    }160  }161}162 163module.exports = new EmailService();164