aknuth/invoice-system
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This commit is contained in:
Andreas Knuth
2026-02-02 19:02:52 -06:00
parent 6ca98dabd2
commit 3f696cdfc3
5 changed files with 94 additions and 30 deletions
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73
server.js
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@@ -108,19 +108,15 @@ async function getNextQuoteNumber() {
}
async function getNextInvoiceNumber() {
const year = new Date().getFullYear();
const result = await pool.query(
'SELECT invoice_number FROM invoices WHERE invoice_number LIKE $1 ORDER BY invoice_number DESC LIMIT 1',
[`${year}-%`]
'SELECT MAX(CAST(invoice_number AS INTEGER)) as max_number FROM invoices WHERE invoice_number ~ \'^[0-9]+$\''
);
if (result.rows.length === 0) {
return `${year}-001`;
if (result.rows.length === 0 || result.rows[0].max_number === null) {
return '110508';
}
const lastNumber = parseInt(result.rows[0].invoice_number.split('-')[1]);
const nextNumber = String(lastNumber + 1).padStart(3, '0');
return `${year}-${nextNumber}`;
return String(parseInt(result.rows[0].max_number) + 1);
}
// Logo endpoints
@@ -419,14 +415,40 @@ app.get('/api/invoices/:id', async (req, res) => {
}
});
// New endpoint to get next invoice number
app.get('/api/invoices/next-number', async (req, res) => {
try {
const nextNumber = await getNextInvoiceNumber();
res.json({ next_number: nextNumber });
} catch (error) {
console.error('Error getting next invoice number:', error);
res.status(500).json({ error: 'Error getting next invoice number' });
}
});
app.post('/api/invoices', async (req, res) => {
const { customer_id, invoice_date, terms, auth_code, tax_exempt, items, created_from_quote_id } = req.body;
const { invoice_number, customer_id, invoice_date, terms, auth_code, tax_exempt, items, created_from_quote_id } = req.body;
const client = await pool.connect();
try {
await client.query('BEGIN');
const invoice_number = await getNextInvoiceNumber();
// Validate invoice_number is provided and is numeric
if (!invoice_number || !/^\d+$/.test(invoice_number)) {
await client.query('ROLLBACK');
return res.status(400).json({ error: 'Invalid invoice number. Must be a numeric value.' });
}
// Check if invoice number already exists
const existingInvoice = await client.query(
'SELECT id FROM invoices WHERE invoice_number = $1',
[invoice_number]
);
if (existingInvoice.rows.length > 0) {
await client.query('ROLLBACK');
return res.status(400).json({ error: `Invoice number ${invoice_number} already exists.` });
}
let subtotal = 0;
@@ -534,12 +556,29 @@ app.post('/api/quotes/:id/convert-to-invoice', async (req, res) => {
app.put('/api/invoices/:id', async (req, res) => {
const { id } = req.params;
const { customer_id, invoice_date, terms, auth_code, tax_exempt, items } = req.body;
const { invoice_number, customer_id, invoice_date, terms, auth_code, tax_exempt, items } = req.body;
const client = await pool.connect();
try {
await client.query('BEGIN');
// Validate invoice_number is provided and is numeric
if (!invoice_number || !/^\d+$/.test(invoice_number)) {
await client.query('ROLLBACK');
return res.status(400).json({ error: 'Invalid invoice number. Must be a numeric value.' });
}
// Check if invoice number already exists (excluding current invoice)
const existingInvoice = await client.query(
'SELECT id FROM invoices WHERE invoice_number = $1 AND id != $2',
[invoice_number, id]
);
if (existingInvoice.rows.length > 0) {
await client.query('ROLLBACK');
return res.status(400).json({ error: `Invoice number ${invoice_number} already exists.` });
}
let subtotal = 0;
for (const item of items) {
@@ -554,10 +593,10 @@ app.put('/api/invoices/:id', async (req, res) => {
const total = subtotal + tax_amount;
await client.query(
`UPDATE invoices SET customer_id = $1, invoice_date = $2, terms = $3, auth_code = $4, tax_exempt = $5,
tax_rate = $6, subtotal = $7, tax_amount = $8, total = $9, updated_at = CURRENT_TIMESTAMP
WHERE id = $10`,
[customer_id, invoice_date, terms, auth_code, tax_exempt, tax_rate, subtotal, tax_amount, total, id]
`UPDATE invoices SET invoice_number = $1, customer_id = $2, invoice_date = $3, terms = $4, auth_code = $5, tax_exempt = $6,
tax_rate = $7, subtotal = $8, tax_amount = $9, total = $10, updated_at = CURRENT_TIMESTAMP
WHERE id = $11`,
[invoice_number, customer_id, invoice_date, terms, auth_code, tax_exempt, tax_rate, subtotal, tax_amount, total, id]
);
await client.query('DELETE FROM invoice_items WHERE invoice_id = $1', [id]);
@@ -598,6 +637,8 @@ app.delete('/api/invoices/:id', async (req, res) => {
}
});
// PDF Generation code continues below...
// PDF Generation using templates and persistent browser
app.get('/api/quotes/:id/pdf', async (req, res) => {
const { id } = req.params;
@@ -858,8 +899,6 @@ app.get('/api/invoices/:id/pdf', async (req, res) => {
});
// Nach den PDF-Endpoints, vor "Start server", einfügen:
// HTML Debug Endpoints
app.get('/api/quotes/:id/html', async (req, res) => {
const { id } = req.params;