envio de constancias pdf, se añadio banner

src/email/dto/rowInterface.interface.ts

@@ -0,0 +1,9 @@
+interface Row {
+    Asistencia: number
+    Nombre: string
+    'Apellido Paterno': string
+    'Apellido Materno': string
+    Carrera: string
+    'Institución Procedencia': string
+    Email: string
+}

src/email/email.controller.ts

@@ -1,6 +1,21 @@
-import { Body, Controller, Param, ParseIntPipe, Post } from '@nestjs/common';
+import {
+  Body,
+  Controller,
+  HttpException,
+  HttpStatus,
+  Param,
+  ParseIntPipe,
+  Post,
+  Res,
+  UploadedFile,
+  UseInterceptors,
+} from '@nestjs/common';
+import { FileInterceptor } from '@nestjs/platform-express';
 import { EmailDto } from './dto/emailDto.dto';
 import { EmailService } from './email.service';
+import { Response } from 'express';
+import * as xlsx from 'xlsx';
+
 
 @Controller('email')
 export class EmailController {
@@ -13,4 +28,14 @@ export class EmailController {
   ): Promise<any> {
     return this.emailService.sendEmail(id, emailDto);
   }
+
+  @Post('constancias')
+  @UseInterceptors(FileInterceptor('file'))
+  async sendConstancias(@UploadedFile() file, @Body('nombreEvento') nombreEvento: string,) {
+    if(!file) {
+      throw new HttpException("No se ha cargado ningun archivo", HttpStatus.BAD_REQUEST)
+    }
+    console.log(file)
+    return this.emailService.sendConstancias(file, nombreEvento);
+  }
 }

src/email/email.service.ts

@@ -1,4 +1,4 @@
-import { Inject, Injectable } from '@nestjs/common';
+import { HttpException, HttpStatus, Inject, Injectable, Res, UploadedFile } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { InjectRepository } from '@nestjs/typeorm';
 import * as nodemailer from 'nodemailer';
@@ -6,6 +6,13 @@ import { EventosService } from 'src/eventos/eventos.service';
 import { Participante } from 'src/participante/participante.entity';
 import { Repository } from 'typeorm';
 import { EmailDto } from './dto/emailDto.dto';
+import * as xlsx from 'xlsx';
+import * as pdfMake from 'pdfmake/build/pdfmake';
+import * as pdfFonts from 'pdfmake/build/vfs_fonts';
+/* import * as PDFDocument from 'pdfkit'; */
+import * as fs from 'fs';
+import * as path from 'path';
+import { PDFDocument, StandardFonts, rgb } from 'pdf-lib';
 
 @Injectable()
 export class EmailService {
@@ -49,4 +56,80 @@ export class EmailService {
 
     return participantes;
   }
+
+  async sendConstancias(file, nombreEvento) {
+    console.log(file)
+    const workbook = xlsx.read(file.buffer);
+    const worksheet = workbook.Sheets[workbook.SheetNames[0]];
+    const data = xlsx.utils.sheet_to_json(worksheet);
+
+    for (const row of data as Row[]) {
+      const pdfDoc = await PDFDocument.create();
+      const page = pdfDoc.addPage();
+      page.setSize(792, 612);
+
+      page.drawRectangle({
+        x: 0,
+        y: page.getHeight() - 60,
+        width: page.getWidth(),
+        height: 60,
+        color: rgb(0 / 255, 61 / 255, 121 / 255),
+      });
+
+      page.drawRectangle({
+        x: 0,
+        y: 0,
+        width: page.getWidth(),
+        height: 60,
+        color: rgb(213 / 255, 159 / 255, 15 / 255),
+      });
+
+      const font = await pdfDoc.embedFont(StandardFonts.HelveticaBold);
+      const fontSize = 30;
+      const text = 'Constancia de asistencia';
+      const textWidth = font.widthOfTextAtSize(text, fontSize);
+      const textHeight = font.heightAtSize(fontSize);
+
+      page.drawText(text, {
+        x: (page.getWidth() - textWidth) / 2,
+        y: (page.getHeight() - textHeight) / 2,
+        size: fontSize,
+        font: font,
+        color: rgb(0/255, 0/255, 0/255),
+      });
+
+      const { width, height } = page.getSize();
+      page.drawText(
+        `Se le otorga la constancia por su asistencia al evento: ${nombreEvento}`,
+        {
+          x: 50,
+          y: height - 50,
+          size: 12,
+          font: await pdfDoc.embedFont('Helvetica'),
+        },
+      );
+      page.drawText(
+        `A ${row['Apellido Paterno']} ${row['Apellido Materno']} ${row.Nombre}`,
+        {
+          x: 50,
+          y: height - 80,
+          size: 12,
+          font: await pdfDoc.embedFont('Helvetica'),
+        },
+      );
+      const pdfBytes = await pdfDoc.save();
+      const attachment = {
+        filename: `Constancia ${nombreEvento} - ${row.Nombre}_${row['Apellido Paterno']}.pdf`,
+        content: pdfBytes,
+      };
+      /*       const blob = new Blob([pdfBytes], { type: 'application/pdf' });
+      const url = URL.createObjectURL(blob); */
+      this.transporter.sendMail({
+        to: row.Email,
+        subject: 'Constancia de asistencia',
+        text: 'Hola',
+        attachments: [attachment],
+      });
+    }
+  }
 }