MattssonandClaude Fable 5
1f6dd778e5
* fix(invoices): reminder emails use the per-currency payment account, never the SEK IBAN Invoice PDF and invoice email resolve payment details by invoice currency (invoice_payment_accounts, #1116), but the overdue-reminder templates still read the legacy company_settings fields, so a EUR reminder printed the SEK account's IBAN. A customer has paid to the wrong account from one. Both reminder generators now go through companyWithInvoicePaymentAccount, and sendReminder applies the same gate as invoice send: no usable account for the invoice currency means the reminder is skipped with INVOICE_PAYMENT_ACCOUNT_MISSING:<currency> in the result, instead of going out with no (or the wrong) payment details. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(invoices): run the reminder payment-account gate before the fee entry and reminder row Skeptic refutation (3/3): the gate lived in sendReminder, after processOverdueReminders had already posted the 60 kr påminnelseavgift verifikat and inserted the invoice_reminders row, so a skipped EUR reminder booked a fee for an email never sent and burned the level for good. The gate now runs in the loop before any write; sendReminder keeps it only as a backstop for direct callers. New processor test asserts no fee entry, no row and no email for the skipped case, and all three once an account exists. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
509 lines
20 KiB
TypeScript
509 lines
20 KiB
TypeScript
import type { Invoice, Customer, CompanySettings } from '@/types'
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import { formatCurrency, formatDate, getCompanyDisplayName, getCompanyPrimaryName } from '@/lib/utils'
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import { getAmountToPay } from '@/lib/invoices/rounding'
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import { companyWithInvoicePaymentAccount } from '@/lib/invoices/payment-accounts'
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/**
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* What the customer was asked to pay on the original invoice: the öre-rounded
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* "Att betala" minus any ROT/RUT-avdrag (fakturamodellen: the deduction is a
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* claim on Skatteverket, never on the customer). Reminders, dröjsmålsränta and
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* the amount-to-pay line must all start from this figure, not invoice.total,
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* or a privatperson is dunned for the SKV share and charged interest on it.
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*/
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export function reminderPrincipal(invoice: Invoice, company: CompanySettings): number {
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return getAmountToPay(invoice, company).toPay
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}
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export interface ReminderEmailData {
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invoice: Invoice
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customer: Customer
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company: CompanySettings
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reminderLevel: 1 | 2 | 3
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daysOverdue: number
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actionUrl: string // URL for customer to mark as paid or dispute
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// Dröjsmålsränta + lagstadgad påminnelseavgift (Räntelagen §6, Lag 1981:739).
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// When the reminder is generated by the cron, these are computed and persisted
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// on the invoice_reminders row and then passed in here.
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//
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// interestAmount is a share of the invoice total, so it carries the INVOICE
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// currency. reminderFee is a fixed statutory krona amount and always carries
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// SEK (see REMINDER_FEE_CURRENCY). The two are deliberately not summed here:
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// the amount to pay is derived per currency by calculateReminderAmounts().
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interestAmount: number
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interestRate: number // annual rate as decimal (0.105 = 10.5%)
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interestFromDate: string
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interestDays: number
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reminderFee: number // always SEK, never the invoice currency
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}
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/**
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* The lagstadgad påminnelseavgift is a Swedish-krona statute: Lag (1981:739) om
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* ersättning för inkassokostnader m.m. 2 §, with the amount fixed at 60 kr by
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* förordning (1981:1057) 1 §. There is no conversion rule for a foreign-currency
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* claim, and Accounted books the fee 1510/3990 in SEK regardless of the invoice
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* currency (lib/bookkeeping/reminder-fee-entries.ts).
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*
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* So the fee is always quoted in SEK. Rendering "60" with the invoice's currency
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* code would demand roughly ten times the statutory amount from a EUR customer
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* and would not match the receivable recorded in the books.
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*/
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export const REMINDER_FEE_CURRENCY = 'SEK'
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export interface ReminderAmounts {
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/** Invoice currency (uppercased ISO code). Carries the invoice total + interest. */
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currency: string
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/** invoice.total + dröjsmålsränta, plus the fee only when the invoice is itself in SEK. */
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totalDue: number
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/**
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* The påminnelseavgift in SEK when the invoice is in another currency, so it
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* has to be demanded alongside rather than inside `totalDue`. 0 when the fee
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* is already folded into `totalDue`.
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*/
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feeDueSeparately: number
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}
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/**
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* Split the amount to pay per currency. Never returns a single scalar that mixes
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* a foreign invoice currency with the SEK statutory fee.
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*/
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export function calculateReminderAmounts(input: {
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invoiceTotal: number
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interestAmount: number
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reminderFee: number
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currency?: string | null
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}): ReminderAmounts {
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const currency = (input.currency || REMINDER_FEE_CURRENCY).toUpperCase()
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const feeSharesInvoiceCurrency = currency === REMINDER_FEE_CURRENCY
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const fee = input.reminderFee > 0 ? Math.round(input.reminderFee * 100) / 100 : 0
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const totalDue =
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Math.round(
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(input.invoiceTotal + input.interestAmount + (feeSharesInvoiceCurrency ? fee : 0)) * 100,
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) / 100
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return {
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currency,
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totalDue,
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feeDueSeparately: feeSharesInvoiceCurrency ? 0 : fee,
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}
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}
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/**
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* Render the amount to pay. When the statutory fee is in a different currency
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* than the invoice it is appended as its own amount ("1 010,00 € + 60 kr")
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* instead of being folded into a misleading single figure.
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*/
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export function formatReminderTotalDue(amounts: ReminderAmounts): string {
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const base = formatCurrency(amounts.totalDue, amounts.currency)
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if (amounts.feeDueSeparately <= 0) {
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return base
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}
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return `${base} + ${formatCurrency(amounts.feeDueSeparately, REMINDER_FEE_CURRENCY)}`
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}
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/** Shown whenever a SEK fee rides along with a foreign-currency invoice. */
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export const REMINDER_FEE_CURRENCY_NOTE =
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'Påminnelseavgiften är lagstadgad (Lag 1981:739) och anges i svenska kronor. '
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+ 'Den räknas inte om till fakturans valuta utan betalas som ett separat belopp i SEK.'
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// Reminder level configurations
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const REMINDER_CONFIG = {
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1: {
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title: 'Vänlig påminnelse',
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tone: 'friendly',
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daysAfterDue: 15
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},
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2: {
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title: 'Andra påminnelsen',
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tone: 'firm',
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daysAfterDue: 30
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},
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3: {
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title: 'Slutlig påminnelse',
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tone: 'urgent',
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daysAfterDue: 45
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}
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} as const
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/**
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* Generate HTML email for payment reminder
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*/
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export function generateReminderEmailHtml(data: ReminderEmailData): string {
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const {
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invoice,
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customer,
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reminderLevel,
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daysOverdue,
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actionUrl,
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interestAmount,
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interestRate,
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interestDays,
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reminderFee,
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} = data
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// Payment details follow the invoice currency, same as the invoice email
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// and PDF: a EUR reminder must never print the SEK account's IBAN.
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const company = companyWithInvoicePaymentAccount(data.company, invoice.currency)
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const config = REMINDER_CONFIG[reminderLevel]
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const interestRatePercent = (interestRate * 100).toLocaleString('sv-SE', {
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minimumFractionDigits: 0,
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maximumFractionDigits: 2,
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})
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const hasInterest = interestAmount > 0
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const hasFee = reminderFee > 0
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const hasSurcharges = hasInterest || hasFee
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const amounts = calculateReminderAmounts({
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invoiceTotal: reminderPrincipal(invoice, company),
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interestAmount,
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reminderFee,
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currency: invoice.currency,
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})
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const feeInOtherCurrency = amounts.feeDueSeparately > 0
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// Different styling based on urgency
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const headerColor = reminderLevel === 3 ? '#dc2626' : reminderLevel === 2 ? '#ea580c' : '#2563eb'
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const buttonColor = reminderLevel === 3 ? '#dc2626' : reminderLevel === 2 ? '#ea580c' : '#2563eb'
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return `
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<!DOCTYPE html>
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<html lang="sv">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>${config.title} - Faktura ${invoice.invoice_number}</title>
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</head>
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<body style="margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; line-height: 1.6; color: #333; background-color: #f9fafb;">
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<div style="max-width: 600px; margin: 0 auto; padding: 40px 20px;">
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<div style="background: white; border-radius: 12px; padding: 40px; box-shadow: 0 1px 3px rgba(0,0,0,0.1);">
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<!-- Header -->
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<div style="text-align: center; margin-bottom: 30px;">
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<div style="display: inline-block; background: ${headerColor}15; color: ${headerColor}; padding: 8px 16px; border-radius: 20px; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;">
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${config.title}
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</div>
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</div>
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<!-- Title -->
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<h1 style="margin: 0 0 20px 0; font-size: 22px; font-weight: 600; color: #111; text-align: center;">
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Faktura ${invoice.invoice_number} förföll för ${daysOverdue} dagar sedan
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</h1>
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<!-- Greeting and Message -->
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<div style="margin-bottom: 30px;">
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<p style="margin: 0 0 15px 0;">
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Hej${customer.name ? ` ${customer.name.split(' ')[0]}` : ''},
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</p>
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${reminderLevel === 1 ? `
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<p style="margin: 0 0 15px 0;">
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Vi vill påminna dig om att faktura ${invoice.invoice_number} förföll till betalning den ${formatDate(invoice.due_date)}.
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Om du redan har betalat kan du bortse från denna påminnelse.
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</p>
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` : reminderLevel === 2 ? `
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<p style="margin: 0 0 15px 0;">
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Trots vår tidigare påminnelse har vi ännu inte mottagit betalning för faktura ${invoice.invoice_number}
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som förföll den ${formatDate(invoice.due_date)}.
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</p>
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<p style="margin: 0 0 15px 0;">
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Vi ber dig vänligen att omgående reglera detta belopp för att undvika ytterligare åtgärder.
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</p>
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` : `
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<p style="margin: 0 0 15px 0; color: #dc2626; font-weight: 500;">
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Detta är vår slutliga påminnelse gällande faktura ${invoice.invoice_number}.
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</p>
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<p style="margin: 0 0 15px 0;">
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Fakturan förföll till betalning den ${formatDate(invoice.due_date)} och vi har ännu inte mottagit betalning
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trots tidigare påminnelser.
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</p>
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<p style="margin: 0 0 15px 0;">
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Om betalning inte inkommer inom 7 dagar kommer ärendet att överlämnas för vidare hantering.
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</p>
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`}
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</div>
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<!-- Invoice Summary Box -->
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<div style="background: #f8f9fa; border-radius: 8px; padding: 25px; margin-bottom: 30px; border-left: 4px solid ${headerColor};">
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<table style="width: 100%; border-collapse: collapse;">
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<tr>
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<td style="padding: 8px 0; color: #666; font-size: 14px;">Fakturanummer:</td>
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<td style="padding: 8px 0; text-align: right; font-weight: 500;">${invoice.invoice_number}</td>
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</tr>
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<tr>
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<td style="padding: 8px 0; color: #666; font-size: 14px;">Fakturadatum:</td>
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<td style="padding: 8px 0; text-align: right;">${formatDate(invoice.invoice_date)}</td>
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</tr>
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<tr>
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<td style="padding: 8px 0; color: #666; font-size: 14px;">Förfallodatum:</td>
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<td style="padding: 8px 0; text-align: right; color: #dc2626; font-weight: 500;">
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${formatDate(invoice.due_date)}
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</td>
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</tr>
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<tr>
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<td colspan="2" style="padding: 15px 0 8px 0; border-top: 1px solid #e5e7eb;"></td>
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</tr>
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<tr>
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<td style="padding: 8px 0; color: #666; font-size: 14px;">Ursprungligt belopp:</td>
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<td style="padding: 8px 0; text-align: right; font-weight: 500;">${formatCurrency(reminderPrincipal(invoice, company), invoice.currency)}</td>
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</tr>
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${hasInterest ? `
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<tr>
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<td style="padding: 8px 0; color: #666; font-size: 14px;">
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Dröjsmålsränta (${interestRatePercent}% per år, ${interestDays} dagar):
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</td>
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<td style="padding: 8px 0; text-align: right; font-weight: 500;">${formatCurrency(interestAmount, invoice.currency)}</td>
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</tr>
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` : ''}
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${hasFee ? `
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<tr>
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<td style="padding: 8px 0; color: #666; font-size: 14px;">Påminnelseavgift:</td>
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<td style="padding: 8px 0; text-align: right; font-weight: 500;">${formatCurrency(reminderFee, REMINDER_FEE_CURRENCY)}</td>
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</tr>
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` : ''}
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${hasSurcharges ? `
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<tr>
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<td colspan="2" style="padding: 12px 0 8px 0; border-top: 1px solid #e5e7eb;"></td>
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</tr>
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` : ''}
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<tr>
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<td style="padding: 8px 0; font-size: 18px; font-weight: 600;">Att betala:</td>
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<td style="padding: 8px 0; text-align: right; font-size: 18px; font-weight: 600; color: ${headerColor};">
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${formatReminderTotalDue(amounts)}
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</td>
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</tr>
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${feeInOtherCurrency ? `
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<tr>
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<td colspan="2" style="padding: 10px 0 0 0; color: #666; font-size: 12px; line-height: 1.5;">
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${REMINDER_FEE_CURRENCY_NOTE}
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</td>
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</tr>
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` : ''}
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</table>
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</div>
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<!-- Payment Details -->
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<div style="margin-bottom: 30px;">
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<h2 style="margin: 0 0 15px 0; font-size: 16px; font-weight: 600; color: #111;">
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Betalningsinformation
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</h2>
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<table style="width: 100%; border-collapse: collapse;">
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${company.bank_name ? `
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<tr>
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<td style="padding: 6px 0; color: #666; font-size: 14px; width: 140px;">Bank:</td>
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<td style="padding: 6px 0;">${company.bank_name}</td>
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</tr>
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` : ''}
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${company.clearing_number && company.account_number ? `
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<tr>
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<td style="padding: 6px 0; color: #666; font-size: 14px;">Kontonummer:</td>
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<td style="padding: 6px 0;">${company.clearing_number}-${company.account_number}</td>
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</tr>
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` : ''}
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${company.iban ? `
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<tr>
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<td style="padding: 6px 0; color: #666; font-size: 14px;">IBAN:</td>
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<td style="padding: 6px 0;">${company.iban}</td>
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</tr>
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` : ''}
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${company.bic ? `
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<tr>
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<td style="padding: 6px 0; color: #666; font-size: 14px;">BIC/SWIFT:</td>
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<td style="padding: 6px 0;">${company.bic}</td>
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</tr>
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` : ''}
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<tr>
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<td style="padding: 6px 0; color: #666; font-size: 14px;">Meddelande:</td>
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<td style="padding: 6px 0; font-weight: 500;">${invoice.invoice_number}</td>
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</tr>
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</table>
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</div>
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<!-- Action Buttons -->
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<div style="text-align: center; margin-bottom: 30px;">
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<p style="margin: 0 0 20px 0; color: #666; font-size: 14px;">
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Har du redan betalat eller har frågor om fakturan?
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</p>
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<a href="${actionUrl}" style="display: inline-block; background: ${buttonColor}; color: white; padding: 14px 28px; border-radius: 8px; text-decoration: none; font-weight: 500; font-size: 14px;">
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Hantera faktura
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</a>
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</div>
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<!-- Footer -->
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<div style="padding-top: 20px; border-top: 1px solid #e5e7eb;">
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<p style="margin: 0 0 10px 0; color: #666; font-size: 14px;">
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Har du frågor? Svara direkt på detta mejl så hjälper vi dig.
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</p>
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<p style="margin: 0; color: #666; font-size: 14px;">
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Med vänliga hälsningar,<br>
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<strong>${getCompanyPrimaryName(company)}</strong>
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</p>
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${company.org_number ? `
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<p style="margin: 10px 0 0 0; color: #999; font-size: 12px;">
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Org.nr: ${company.org_number}
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${company.vat_number ? ` | VAT: ${company.vat_number}` : ''}
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</p>
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` : ''}
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</div>
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</div>
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<!-- Unsubscribe note -->
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<p style="text-align: center; margin-top: 20px; color: #999; font-size: 12px;">
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Detta är ett automatiskt meddelande angående en obetald faktura.
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</p>
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</div>
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</body>
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</html>
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`
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}
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/**
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* Generate plain text email for payment reminder
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*/
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export function generateReminderEmailText(data: ReminderEmailData): string {
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const {
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invoice,
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customer,
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reminderLevel,
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daysOverdue,
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actionUrl,
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interestAmount,
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interestRate,
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interestDays,
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reminderFee,
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} = data
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// Payment details follow the invoice currency, same as the invoice email
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// and PDF: a EUR reminder must never print the SEK account's IBAN.
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const company = companyWithInvoicePaymentAccount(data.company, invoice.currency)
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const config = REMINDER_CONFIG[reminderLevel]
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const interestRatePercent = (interestRate * 100).toLocaleString('sv-SE', {
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minimumFractionDigits: 0,
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maximumFractionDigits: 2,
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})
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const hasInterest = interestAmount > 0
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const hasFee = reminderFee > 0
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const amounts = calculateReminderAmounts({
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invoiceTotal: reminderPrincipal(invoice, company),
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interestAmount,
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reminderFee,
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currency: invoice.currency,
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})
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let text = `${config.title.toUpperCase()}\n`
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text += `Faktura ${invoice.invoice_number} förföll för ${daysOverdue} dagar sedan\n`
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text += `=`.repeat(50) + `\n\n`
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text += `Hej${customer.name ? ` ${customer.name.split(' ')[0]}` : ''},\n\n`
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if (reminderLevel === 1) {
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text += `Vi vill påminna dig om att faktura ${invoice.invoice_number} förföll till betalning den ${formatDate(invoice.due_date)}.\n`
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text += `Om du redan har betalat kan du bortse från denna påminnelse.\n\n`
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} else if (reminderLevel === 2) {
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text += `Trots vår tidigare påminnelse har vi ännu inte mottagit betalning för faktura ${invoice.invoice_number} som förföll den ${formatDate(invoice.due_date)}.\n\n`
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text += `Vi ber dig vänligen att omgående reglera detta belopp för att undvika ytterligare åtgärder.\n\n`
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} else {
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text += `DETTA ÄR VÅR SLUTLIGA PÅMINNELSE\n\n`
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text += `Fakturan förföll till betalning den ${formatDate(invoice.due_date)} och vi har ännu inte mottagit betalning trots tidigare påminnelser.\n\n`
|
|
text += `Om betalning inte inkommer inom 7 dagar kommer ärendet att överlämnas för vidare hantering.\n\n`
|
|
}
|
|
|
|
text += `Fakturasammanfattning:\n`
|
|
text += `-`.repeat(30) + `\n`
|
|
text += `Fakturanummer: ${invoice.invoice_number}\n`
|
|
text += `Fakturadatum: ${formatDate(invoice.invoice_date)}\n`
|
|
text += `Förfallodatum: ${formatDate(invoice.due_date)}\n`
|
|
text += `Ursprungligt belopp: ${formatCurrency(reminderPrincipal(invoice, company), invoice.currency)}\n`
|
|
if (hasInterest) {
|
|
text += `Dröjsmålsränta (${interestRatePercent}% per år, ${interestDays} dagar): ${formatCurrency(interestAmount, invoice.currency)}\n`
|
|
}
|
|
if (hasFee) {
|
|
text += `Påminnelseavgift: ${formatCurrency(reminderFee, REMINDER_FEE_CURRENCY)}\n`
|
|
}
|
|
text += `Att betala: ${formatReminderTotalDue(amounts)}\n`
|
|
text += `-`.repeat(30) + `\n`
|
|
if (amounts.feeDueSeparately > 0) {
|
|
text += `${REMINDER_FEE_CURRENCY_NOTE}\n`
|
|
}
|
|
text += `\n`
|
|
|
|
text += `Betalningsinformation:\n`
|
|
if (company.bank_name) text += `Bank: ${company.bank_name}\n`
|
|
if (company.clearing_number && company.account_number) {
|
|
text += `Kontonummer: ${company.clearing_number}-${company.account_number}\n`
|
|
}
|
|
if (company.iban) text += `IBAN: ${company.iban}\n`
|
|
if (company.bic) text += `BIC/SWIFT: ${company.bic}\n`
|
|
text += `Meddelande: ${invoice.invoice_number}\n\n`
|
|
|
|
text += `Har du redan betalat eller har frågor om fakturan?\n`
|
|
text += `Hantera faktura: ${actionUrl}\n\n`
|
|
|
|
text += `Har du frågor? Svara direkt på detta mejl så hjälper vi dig.\n\n`
|
|
text += `Med vänliga hälsningar,\n`
|
|
text += `${getCompanyDisplayName(company)}\n`
|
|
|
|
if (company.org_number) {
|
|
text += `\nOrg.nr: ${company.org_number}`
|
|
if (company.vat_number) text += ` | VAT: ${company.vat_number}`
|
|
text += `\n`
|
|
}
|
|
|
|
return text
|
|
}
|
|
|
|
/**
|
|
* Generate email subject for payment reminder.
|
|
*
|
|
* When dröjsmålsränta or påminnelseavgift apply we surface them in the
|
|
* subject so the customer sees the true amount to pay before opening
|
|
* the email.
|
|
*/
|
|
export function generateReminderEmailSubject(data: ReminderEmailData): string {
|
|
const { invoice, company, reminderLevel, interestAmount, reminderFee } = data
|
|
const config = REMINDER_CONFIG[reminderLevel]
|
|
const hasSurcharges = interestAmount > 0 || reminderFee > 0
|
|
|
|
// A SEK fee on a foreign-currency invoice renders as "1 010,00 € + 60 kr":
|
|
// two amounts in two currencies, never one mixed scalar.
|
|
const amounts = calculateReminderAmounts({
|
|
invoiceTotal: reminderPrincipal(invoice, company),
|
|
interestAmount,
|
|
reminderFee,
|
|
currency: invoice.currency,
|
|
})
|
|
const suffix = hasSurcharges ? ' (inkl. dröjsmålsränta)' : ''
|
|
|
|
return `${config.title}: Faktura ${invoice.invoice_number} - ${formatReminderTotalDue(amounts)}${suffix}`
|
|
}
|
|
|
|
/**
|
|
* Get the number of days after due date for each reminder level
|
|
*/
|
|
export type ReminderDaysConfig = Record<1 | 2 | 3, number>
|
|
|
|
type ReminderDaysSettings = Partial<
|
|
Pick<
|
|
CompanySettings,
|
|
'reminder_days_level_1' | 'reminder_days_level_2' | 'reminder_days_level_3'
|
|
>
|
|
>
|
|
|
|
export function getReminderDaysConfig(
|
|
settings?: ReminderDaysSettings | null,
|
|
): ReminderDaysConfig {
|
|
const defaults: ReminderDaysConfig = {
|
|
1: REMINDER_CONFIG[1].daysAfterDue,
|
|
2: REMINDER_CONFIG[2].daysAfterDue,
|
|
3: REMINDER_CONFIG[3].daysAfterDue,
|
|
}
|
|
|
|
const configured: ReminderDaysConfig = {
|
|
1: settings?.reminder_days_level_1 ?? defaults[1],
|
|
2: settings?.reminder_days_level_2 ?? defaults[2],
|
|
3: settings?.reminder_days_level_3 ?? defaults[3],
|
|
}
|
|
|
|
const valid =
|
|
Object.values(configured).every((days) => Number.isInteger(days) && days >= 1 && days <= 365)
|
|
&& configured[1] < configured[2]
|
|
&& configured[2] < configured[3]
|
|
|
|
return valid ? configured : defaults
|
|
}
|