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Next.js + Express event management app for Hope Family Church.
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joshua
2026-07-23 15:26:47 +02:00
commit 3d381944d2
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backend/src/controllers/reportController.js
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const PDFDocument = require('pdfkit');
const fs = require('fs');
const path = require('path');
const nodemailer = require('nodemailer');
// Utility: draw a table
function drawTable(doc, startX, startY, colWidths, rows, header) {
let y = startY;
doc.font('Helvetica-Bold');
if (header && header.length) {
let x = startX;
header.forEach((h, i) => {
const w = colWidths[i] || 80;
doc.rect(x, y, w, 20).stroke();
doc.text(String(h || ''), x + 4, y + 6, { width: w - 8 });
x += w;
});
y += 20;
}
doc.font('Helvetica');
rows.forEach((row) => {
let x = startX;
row.forEach((cell, i) => {
const w = colWidths[i] || 80;
const h = 18;
doc.rect(x, y, w, h).stroke();
doc.text(String(cell ?? ''), x + 4, y + 4, { width: w - 8 });
x += w;
});
y += 18;
// New page if overflow
if (y > doc.page.height - 40) {
doc.addPage();
y = 20;
}
});
}
function a4Doc(orientation = 'portrait') {
return new PDFDocument({ size: 'A4', margin: 20, layout: orientation === 'landscape' ? 'landscape' : 'portrait' });
}
// POST /api/reports/pdf
// body: { title: string, kind: 'table'|'layered', table?: { columns: string[], rows: string[][] }, layered?: { header?: string, sections: { title: string, items: string[] }[] } }
const generatePdf = async (req, res) => {
try {
const { title, kind, table, layered, orientation } = req.body || {};
res.setHeader('Content-Type', 'application/pdf');
const filename = `${(title || 'report').replace(/[^a-z0-9]/gi, '_').toLowerCase()}.pdf`;
res.setHeader('Content-Disposition', `attachment; filename="${filename}"`);
const doc = a4Doc(orientation === 'landscape' ? 'landscape' : 'portrait');
doc.pipe(res);
// Title
doc.font('Helvetica-Bold').fontSize(16).text(title || 'Report', { align: 'left' });
doc.moveDown(0.5);
if (kind === 'table' && table && Array.isArray(table.rows)) {
const columns = Array.isArray(table.columns) ? table.columns : [];
const colCount = columns.length || (table.rows[0] ? table.rows[0].length : 1);
const pageWidth = doc.page.width - doc.page.margins.left - doc.page.margins.right;
// Slightly wider first column to mimic site tables
const baseWidth = Math.floor(pageWidth / Math.max(1, colCount));
const colWidths = new Array(colCount).fill(baseWidth);
if (colCount > 0) colWidths[0] = Math.floor(baseWidth * 1.2);
// Draw header band
if (columns.length) {
let x = doc.page.margins.left;
const y = doc.y;
doc.save();
doc.rect(x, y, pageWidth, 22).fill('#f3f4f6');
doc.fillColor('#111827').font('Helvetica-Bold').fontSize(11);
columns.forEach((h, i) => {
const w = colWidths[i] || baseWidth;
doc.text(String(h || ''), x + 6, y + 6, { width: w - 12 });
x += w;
});
doc.restore();
doc.moveDown(1.6);
}
// Zebra rows
const rows = table.rows;
rows.forEach((row, idx) => {
const rowY = doc.y;
const rowH = 18;
const bg = idx % 2 === 0 ? '#ffffff' : '#f9fafb';
doc.save();
doc.rect(doc.page.margins.left, rowY - 2, pageWidth, rowH + 4).fill(bg).restore();
let x = doc.page.margins.left;
row.forEach((cell, i) => {
const w = colWidths[i] || baseWidth;
// Cell text
doc.fillColor('#111827').font('Helvetica').fontSize(10).text(String(cell ?? ''), x + 6, rowY, { width: w - 12 });
// Vertical separators similar to table borders
doc.strokeColor('#e5e7eb').lineWidth(0.5).moveTo(x, rowY - 2).lineTo(x, rowY + rowH + 2).stroke();
x += w;
});
// Right border
doc.strokeColor('#e5e7eb').lineWidth(0.5).moveTo(doc.page.margins.left + pageWidth, rowY - 2).lineTo(doc.page.margins.left + pageWidth, rowY + rowH + 2).stroke();
doc.moveDown(1.1);
if (doc.y > doc.page.height - 40) {
doc.addPage();
}
});
// Bottom border
doc.strokeColor('#e5e7eb').lineWidth(0.5).moveTo(doc.page.margins.left, doc.y).lineTo(doc.page.margins.left + pageWidth, doc.y).stroke();
} else if (kind === 'layered' && layered && Array.isArray(layered.sections)) {
if (layered.header) {
doc.font('Helvetica-Bold').fontSize(13).text(layered.header);
doc.moveDown(0.3);
}
doc.font('Helvetica').fontSize(11);
for (const section of layered.sections) {
doc.fillColor('#111827').font('Helvetica-Bold').text(String(section.title || ''), { continued: false });
doc.moveDown(0.15);
doc.font('Helvetica').fontSize(10);
if (Array.isArray(section.items) && section.items.length) {
for (const item of section.items) {
// Bullet dot
doc.circle(doc.page.margins.left + 2, doc.y + 6, 1.5).fill('#374151').stroke();
doc.fillColor('#111827');
doc.text(' ' + String(item || ''), doc.page.margins.left + 8, doc.y, { width: doc.page.width - doc.page.margins.left - doc.page.margins.right - 8 });
doc.moveDown(0.2);
}
} else {
doc.text('No items');
}
doc.moveDown(0.5);
if (doc.y > doc.page.height - 60) doc.addPage();
}
} else {
doc.font('Helvetica').text('No content');
}
doc.end();
} catch (e) {
res.status(400).json({ message: e.message });
}
};
// POST /api/reports/email
// body: { title, kind, table?, layered?, subject?, body? }
const emailPdf = async (req, res) => {
try {
const { title, kind, table, layered, subject, body, orientation } = req.body || {};
const user = req.user;
if (!user || !user.email) {
res.status(400);
throw new Error('User email not available');
}
// Ensure temp dir
const tempDir = path.join(__dirname, '..', '..', 'temp');
if (!fs.existsSync(tempDir)) fs.mkdirSync(tempDir, { recursive: true });
const filePath = path.join(tempDir, `${(title || 'report')}-${Date.now()}.pdf`.replace(/[^a-z0-9_.-]/gi, '_'));
// Build PDF to file
await new Promise((resolve, reject) => {
const doc = a4Doc(orientation === 'landscape' ? 'landscape' : 'portrait');
const ws = fs.createWriteStream(filePath);
doc.pipe(ws);
doc.font('Helvetica-Bold').fontSize(16).text(title || 'Report');
doc.moveDown(0.5);
if (kind === 'table' && table && Array.isArray(table.rows)) {
const columns = Array.isArray(table.columns) ? table.columns : [];
const colCount = columns.length || (table.rows[0] ? table.rows[0].length : 1);
const pageWidth = doc.page.width - doc.page.margins.left - doc.page.margins.right;
// Slightly wider first column
const baseWidth = Math.floor(pageWidth / Math.max(1, colCount));
const colWidths = new Array(colCount).fill(baseWidth);
if (colCount > 0) colWidths[0] = Math.floor(baseWidth * 1.2);
// Header band
if (columns.length) {
let x = doc.page.margins.left;
const y = doc.y;
doc.save();
doc.rect(x, y, pageWidth, 22).fill('#f3f4f6');
doc.fillColor('#111827').font('Helvetica-Bold').fontSize(11);
columns.forEach((h, i) => {
const w = colWidths[i] || baseWidth;
doc.text(String(h || ''), x + 6, y + 6, { width: w - 12 });
x += w;
});
doc.restore();
doc.moveDown(1.6);
}
// Rows zebra
const rows = table.rows;
rows.forEach((row, idx) => {
const rowY = doc.y;
const rowH = 18;
const bg = idx % 2 === 0 ? '#ffffff' : '#f9fafb';
doc.save();
doc.rect(doc.page.margins.left, rowY - 2, pageWidth, rowH + 4).fill(bg).restore();
let x = doc.page.margins.left;
row.forEach((cell, i) => {
const w = colWidths[i] || baseWidth;
doc.fillColor('#111827').font('Helvetica').fontSize(10).text(String(cell ?? ''), x + 6, rowY, { width: w - 12 });
doc.strokeColor('#e5e7eb').lineWidth(0.5).moveTo(x, rowY - 2).lineTo(x, rowY + rowH + 2).stroke();
x += w;
});
doc.strokeColor('#e5e7eb').lineWidth(0.5).moveTo(doc.page.margins.left + pageWidth, rowY - 2).lineTo(doc.page.margins.left + pageWidth, rowY + rowH + 2).stroke();
doc.moveDown(1.1);
if (doc.y > doc.page.height - 40) {
doc.addPage();
}
});
doc.strokeColor('#e5e7eb').lineWidth(0.5).moveTo(doc.page.margins.left, doc.y).lineTo(doc.page.margins.left + pageWidth, doc.y).stroke();
} else if (kind === 'layered' && layered && Array.isArray(layered.sections)) {
if (layered.header) {
doc.font('Helvetica-Bold').fontSize(13).text(layered.header);
doc.moveDown(0.3);
}
doc.font('Helvetica').fontSize(11);
for (const section of layered.sections) {
doc.fillColor('#111827').font('Helvetica-Bold').text(String(section.title || ''), { continued: false });
doc.moveDown(0.15);
doc.font('Helvetica').fontSize(10);
if (Array.isArray(section.items) && section.items.length) {
for (const item of section.items) {
doc.circle(doc.page.margins.left + 2, doc.y + 6, 1.5).fill('#374151').stroke();
doc.fillColor('#111827');
doc.text(' ' + String(item || ''), doc.page.margins.left + 8, doc.y, { width: doc.page.width - doc.page.margins.left - doc.page.margins.right - 8 });
doc.moveDown(0.2);
}
} else {
doc.text('No items');
}
doc.moveDown(0.5);
if (doc.y > doc.page.height - 60) doc.addPage();
}
} else {
doc.font('Helvetica').text('No content');
}
doc.end();
ws.on('finish', resolve);
ws.on('error', reject);
});
// Send email using nodemailer (same config as tickets)
const transporter = nodemailer.createTransport({
host: process.env.EMAIL_HOST,
port: process.env.EMAIL_PORT,
secure: process.env.EMAIL_PORT === '465',
auth: { user: process.env.EMAIL_USER, pass: process.env.EMAIL_PASS }
});
await transporter.sendMail({
from: process.env.EMAIL_FROM,
to: user.email,
subject: subject || (title ? `${title} PDF` : 'Report PDF'),
text: body || 'Please find your report attached.',
attachments: [{ filename: path.basename(filePath), path: filePath, contentType: 'application/pdf' }]
});
// Clean
try { fs.unlinkSync(filePath); } catch {}
res.json({ message: `Report emailed to ${user.email}` });
} catch (e) {
res.status(400).json({ message: e.message });
}
};
module.exports = { generatePdf, emailPdf };