Mattsson
78c91e00e4
* feat: add language preference for customers to support invoice localization - Introduced language support for invoices, allowing customers to choose between Swedish and English. - Updated invoice PDF generation to reflect the selected language for titles, labels, and messages. - Enhanced email templates to generate content in the customer's preferred language. - Added migration to include a language column in the customers table with a default value of Swedish. - Updated tests to verify correct language usage in invoice emails and PDFs. * fix: debounce API requests in InvoicePreviewCard and update F-skatt terminology in email templates
145 lines
5.0 KiB
TypeScript
145 lines
5.0 KiB
TypeScript
import { describe, it, expect } from 'vitest'
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import {
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generateInvoiceEmailHtml,
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generateInvoiceEmailText,
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generateInvoiceEmailSubject,
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} from '../invoice-templates'
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import { makeCustomer, makeInvoice, makeCompanySettings } from '@/tests/helpers'
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const company = makeCompanySettings({
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company_name: 'Acme AB',
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bank_name: 'SEB',
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clearing_number: '5000',
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account_number: '1234567',
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iban: 'SE45 5000 0000 0583 9825 7466',
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bic: 'ESSESESS',
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org_number: '556677-8899',
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vat_number: 'SE556677889901',
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f_skatt: true,
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})
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const invoice = makeInvoice({
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invoice_number: '1042',
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invoice_date: '2026-05-22',
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due_date: '2026-06-21',
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currency: 'SEK',
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total: 12500,
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})
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describe('invoice email templates', () => {
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describe('Swedish customer (default)', () => {
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const customer = makeCustomer({ name: 'Erik Andersson', email: 'erik@example.se', language: 'sv' })
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const data = { invoice, customer, company }
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it('uses Swedish chrome in HTML', () => {
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const html = generateInvoiceEmailHtml(data)
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expect(html).toContain('<html lang="sv">')
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expect(html).toContain('Faktura från Acme AB')
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expect(html).toContain('Att betala:')
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expect(html).toContain('Betalningsinformation')
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expect(html).toContain('Hej Erik,')
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expect(html).toContain('Med vänliga hälsningar,')
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expect(html).toContain('Innehar F-skattsedel')
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})
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it('renders the total with explicit SEK code, not "kr"', () => {
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const html = generateInvoiceEmailHtml(data)
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// sv-SE digit grouping: "12 500,00 SEK"
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expect(html).toMatch(/12[\s\u00a0]500,00 SEK/)
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expect(html).not.toContain('kr')
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})
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it('uses Swedish subject', () => {
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expect(generateInvoiceEmailSubject(data)).toBe('Faktura 1042 från Acme AB')
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})
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it('uses Swedish plain text body', () => {
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const text = generateInvoiceEmailText(data)
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expect(text).toContain('Hej Erik,')
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expect(text).toContain('Att betala:')
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expect(text).toContain('Förfallodatum:')
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expect(text).not.toContain('kr')
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})
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})
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describe('English customer', () => {
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const customer = makeCustomer({ name: 'Jane Doe', email: 'jane@example.com', language: 'en' })
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const data = { invoice, customer, company }
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it('uses English chrome in HTML', () => {
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const html = generateInvoiceEmailHtml(data)
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expect(html).toContain('<html lang="en">')
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expect(html).toContain('Invoice from Acme AB')
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expect(html).toContain('Total due:')
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expect(html).toContain('Payment information')
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expect(html).toContain('Hi Jane,')
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expect(html).toContain('Kind regards,')
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// F-skatt is statutory and stays Swedish in both locales.
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expect(html).toContain('Innehar F-skattsedel')
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})
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it('renders the total with explicit SEK code in English digit grouping', () => {
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const html = generateInvoiceEmailHtml(data)
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// en-US digit grouping: "12,500.00 SEK"
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expect(html).toContain('12,500.00 SEK')
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expect(html).not.toContain('kr')
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})
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it('uses English subject', () => {
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expect(generateInvoiceEmailSubject(data)).toBe('Invoice 1042 from Acme AB')
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})
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it('uses English plain text body', () => {
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const text = generateInvoiceEmailText(data)
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expect(text).toContain('Hi Jane,')
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expect(text).toContain('Total due:')
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expect(text).toContain('Due date:')
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expect(text).toContain('Thank you for your business')
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expect(text).not.toContain('kr')
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})
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})
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describe('credit note', () => {
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const creditInvoice = makeInvoice({
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invoice_number: '1043',
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invoice_date: '2026-05-22',
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due_date: '2026-05-22',
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currency: 'SEK',
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total: -5000,
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credited_invoice_id: 'inv-orig',
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})
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it('translates the credit-note body in English', () => {
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const customer = makeCustomer({ language: 'en' })
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const html = generateInvoiceEmailHtml({ invoice: creditInvoice, customer, company })
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expect(html).toContain('Credit note')
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expect(html).toContain('Attached you will find a credit note')
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})
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it('keeps the credit-note body in Swedish for sv customers', () => {
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const customer = makeCustomer({ language: 'sv' })
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const html = generateInvoiceEmailHtml({ invoice: creditInvoice, customer, company })
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expect(html).toContain('Kreditfaktura')
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expect(html).toContain('Bifogat hittar du en kreditfaktura')
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})
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})
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describe('non-SEK currency', () => {
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const eurInvoice = makeInvoice({
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invoice_number: '1044',
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currency: 'EUR',
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total: 1000,
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})
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it('writes EUR code with the chosen locale grouping', () => {
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const enCustomer = makeCustomer({ language: 'en' })
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const enHtml = generateInvoiceEmailHtml({ invoice: eurInvoice, customer: enCustomer, company })
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expect(enHtml).toContain('1,000.00 EUR')
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const svCustomer = makeCustomer({ language: 'sv' })
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const svHtml = generateInvoiceEmailHtml({ invoice: eurInvoice, customer: svCustomer, company })
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expect(svHtml).toMatch(/1[\s\u00a0]000,00 EUR/)
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})
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})
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})
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