FIxed Bug - Mail

functions/mail.js

@@ -1,101 +1,80 @@
-const fs = require("fs");
-const csv = require("csv-parser");
-const qrcode = require("qrcode");
-const nodemailer = require("nodemailer");
+const fs = require('fs');
+const csv = require('csv-parser');
+const qrcode = require('qrcode');
+const nodemailer = require('nodemailer');
 const Jimp = require("jimp");
 
-const csvFilePath = "./demo.csv";
-const outputDir = "./qrcodes";
+
+const csvFilePath = './demo.csv';
+const outputDir = './qrcodes';
 
 if (!fs.existsSync(outputDir)) {
-  fs.mkdirSync(outputDir);
+    fs.mkdirSync(outputDir);
 }
 
 const transporter = nodemailer.createTransport({
-  service: "gmail",
-  host: "smtp.gmail.com",
-  port: 587,
-  pool: true,
-  auth: {
-    user: "iedcmec@mec.ac.in",
-    pass: "pass",
-  },
+    service: 'gmail',
+    host: "smtp.gmail.com",
+    port: 587,
+    auth: {
+        user: '',
+        pass: ''
+    }
 });
 
-let counter = 0;
-const emailText = (name) => `Dear ${name},
-
-We hope you are excited about Technohack! 
-As we approach the hackathon, we want to ensure that the registration process is smooth and easy for everyone. 
-Please take note of the following instructions regarding registration:
-
-- You will receive a unique QR code as an attachment to this email.
-- Please report to the registration desk with your QR code.
-- Show your QR code at the counter.
-- Our volunteers will scan your QR code and you will receive a name tag with a new QR code pasted on it.
-- Please stick or keep your name tag safely throughout the hackathon duration.
-- For dinner, snacks, breakfast, and lunch, please show your QR code at the counters.
-- If you have any doubts or questions, our voluntees will be happy to assist you.
-
-We hope this information makes the registration process easier for you. 
-If you have any further questions or concerns, please feel free to reach out to us.
+const rows = [];
+fs.createReadStream(csvFilePath)
+    .pipe(csv())
+    .on('data', (row) => {
+        rows.push(row);
+    })
+    .on('end', async () => {
+        for (let i = 0; i < rows.length; i++) {
+            const row = rows[i];
+            const id = row.id;
+            const email = row.email;
+            const name = row.name;
+            const qrCodeData = id;
+            const qrCodePath = `${outputDir}/${id}.png`;
 
-Best regards,
+            try {
+                await qrcode.toFile(qrCodePath, qrCodeData, {
+                    color: {
+                        dark: '#000000',
+                        light: '#FFFFFF',
+                    },
+                    scale: 11,
+                    margin: 2
+                });
 
-The Technohack Team`;
+                const qrImage = await Jimp.read(qrCodePath);
+                const font = await Jimp.loadFont(Jimp.FONT_SANS_16_BLACK);
+                qrImage.print(font, 130, qrImage.bitmap.height - 20, id);
+                await qrImage.writeAsync(qrCodePath);
 
-const main = () => {
-  fs.createReadStream(csvFilePath)
-    .pipe(csv())
-    .on("data", async (row) => {
-      const id = row.id;
-      const email = row.email;
-      const name = row.name;
-      const qrCodeData = id;
-      const qrCodePath = `${outputDir}/${id}.png`;
-      try {
-        await qrcode.toFile(qrCodePath, qrCodeData, {
-          color: {
-            dark: "#000000",
-            light: "#FFFFFF",
-          },
-          scale: 11,
-          margin: 2,
-        });
+                const mailOptions = {
+                    from: 'nazimfilzer@gmail.com',
+                    to: email,
+                    subject: 'Welcome to TECHNOO',
+                    text: `SUPPP ${name}!!`,
+                    attachments: [{
+                        filename: `${id}.png`,
+                        path: qrCodePath
+                    }]
+                };
 
-        const qrImage = await Jimp.read(qrCodePath);
-        const font = await Jimp.loadFont(Jimp.FONT_SANS_16_BLACK);
-        qrImage.print(font, 130, qrImage.bitmap.height - 20, id);
-        await qrImage.writeAsync(qrCodePath);
-        const mailOptions = {
-          from: "iedcmec@mec.ac.in",
-          to: email,
-          subject: "Technohack 2023 - Registration Details",
-          text: emailText(name),
-          attachments: [
-            {
-              filename: `${id}.png`,
-              path: qrCodePath,
-            },
-          ],
-        };
+                await transporter.sendMail(mailOptions);
+                console.log(`Sent QR code for id ${id} to ${email}`);
 
-        // if (counter++ % 1 === 0) {
-        //   console.log("Pausing for 15 seconds...");
-        //   await new Promise((resolve) => setTimeout(resolve, 15000));
-        //   console.log("Resuming...");
-        // }
-        await transporter.sendMail(mailOptions);
-        console.log(`Sent QR code for id ${id} to ${email}`);
-      } catch (error) {
-        console.error(
-          `Failed to send QR code for id ${id} to ${email}: ${error}`
-        );
-      }
-    })
-    .on("end", () => {
-      console.log("Done generating and sending QR codes");
-    });
-};
+                if (i % 2 === 1) {
+                    console.log('Pausing for 10 seconds...');
+                    await new Promise(resolve => setTimeout(resolve, 10000));
+                    console.log('Resuming...');
+                }
+            } catch (error) {
+                console.error(`Failed to send QR code for id ${id} to ${email}: ${error}`);
+            }
+        }
 
-main();
+        console.log('Done generating and sending QR codes');
+    });