reportGenerator.js

const PDFDocument = require('pdfkit');
const fs = require('fs');
const path = require('path');


// Mock database functions
async function getStudentDetails(studentId) {
  return Promise.resolve({
    id: studentId,
    name: "John Doe",
    class: "10A"
  });
}

async function getAcademicPerformance(studentId) {
  return Promise.resolve([
    { subject: "Math", score: 95 },
    { subject: "Science", score: 88 }
  ]);
}

async function getAttendanceRecords(studentId) {
  return Promise.resolve([
    { date: "2023-01-01", status: "Present" },
    { date: "2023-01-02", status: "Absent" }
  ]);
}


function generateReport(studentId) {
  return new Promise(async (resolve, reject) => {
    const studentDetails = await getStudentDetails(studentId);
    const academicPerformance = await getAcademicPerformance(studentId);
    const attendanceRecords = await getAttendanceRecords(studentId);

    // Create a new PDF document
    const doc = new PDFDocument();
    const reportPath = path.join(__dirname, `report_${studentId}.pdf`);

    // Pipe the PDF into a file
    doc.pipe(fs.createWriteStream(reportPath));

    doc.fontSize(25).text('Student Report', 100, 80);
    doc.fontSize(12).text(`Name: ${studentDetails.name}`, 100, 120);

    doc.end();

    resolve(reportPath);
  });
}

module.exports = { generateReport };