LINUS ROUND 1: Delete dead code (rust/c), generic Store[T], tests, slim main.go
- Removed rust-service/, c-runtime/, kafka stubs - Generic Store[T] pattern with real tests - Slimmed main.go from 324 to ~50 lines - Added config, middleware, store, ledger, pdf tests - Frontend SPA shell with router - Binary: 15.5MB -> 12MB
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Bernt (LandveX AI)
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// Package pdf provides generic document generation.
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// One function, multiple document types. Linus-style.
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package pdf
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import (
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"bytes"
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"fmt"
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"time"
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"github.com/jung-kurt/gofpdf"
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)
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// DocType represents the type of document
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type DocType string
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const (
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InvoiceDoc DocType = "FAKTURA"
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QuoteDoc DocType = "OFFERT"
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)
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// LineItem represents a single line on a document
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type LineItem struct {
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Description string
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Quantity float64
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Unit string
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UnitPrice float64
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Total float64
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}
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// DocumentData contains all data needed to generate a document
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type DocumentData struct {
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DocType DocType
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DocNumber string
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DocDate time.Time
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ValidUntil *time.Time
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CustomerName string
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CustomerAddress string
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CustomerOrgNr string
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Items []LineItem
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Subtotal float64
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VATRate float64
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VATAmount float64
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Total float64
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Currency string
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CompanyName string
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CompanyAddress string
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CompanyOrgNr string
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CompanyBankgiro string
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Notes string
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}
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// GenerateDocument creates a professional PDF document
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func GenerateDocument(data DocumentData) ([]byte, error) {
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pdf := gofpdf.New("P", "mm", "A4", "")
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pdf.AddPage()
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// Header with document type
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pdf.SetFont("Arial", "B", 20)
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pdf.SetTextColor(201, 106, 58) // Terracotta
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pdf.Cell(0, 12, string(data.DocType))
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pdf.Ln(8)
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// Company info
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pdf.SetFont("Arial", "B", 10)
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pdf.SetTextColor(50, 50, 50)
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pdf.Cell(0, 5, data.CompanyName)
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pdf.Ln(5)
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pdf.SetFont("Arial", "", 9)
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pdf.Cell(0, 4, data.CompanyAddress)
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pdf.Ln(4)
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if data.CompanyOrgNr != "" {
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pdf.Cell(0, 4, fmt.Sprintf("Org.nr: %s", data.CompanyOrgNr))
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pdf.Ln(4)
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}
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if data.CompanyBankgiro != "" {
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pdf.Cell(0, 4, fmt.Sprintf("Bankgiro: %s", data.CompanyBankgiro))
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pdf.Ln(4)
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}
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pdf.Ln(5)
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// Document details box
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pdf.SetFillColor(250, 248, 245)
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pdf.Rect(130, 30, 70, 35, "F")
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pdf.SetXY(135, 33)
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pdf.SetFont("Arial", "B", 9)
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pdf.SetTextColor(201, 106, 58)
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pdf.Cell(0, 5, docInfoLabel(data.DocType))
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pdf.Ln(6)
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pdf.SetFont("Arial", "", 9)
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pdf.SetTextColor(50, 50, 50)
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pdf.SetX(135)
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pdf.Cell(0, 4, fmt.Sprintf("%s: %s", docNumberLabel(data.DocType), data.DocNumber))
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pdf.Ln(4)
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pdf.SetX(135)
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pdf.Cell(0, 4, fmt.Sprintf("Datum: %s", data.DocDate.Format("2006-01-02")))
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pdf.Ln(4)
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if data.ValidUntil != nil {
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pdf.SetX(135)
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pdf.Cell(0, 4, fmt.Sprintf("Giltig till: %s", data.ValidUntil.Format("2006-01-02")))
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pdf.Ln(4)
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}
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pdf.SetX(135)
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pdf.Cell(0, 4, fmt.Sprintf("Valuta: %s", data.Currency))
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pdf.Ln(4)
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// Customer info
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pdf.SetXY(10, 75)
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pdf.SetFont("Arial", "B", 10)
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pdf.SetTextColor(201, 106, 58)
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pdf.Cell(0, 5, "KUND")
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pdf.Ln(6)
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pdf.SetFont("Arial", "B", 10)
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pdf.SetTextColor(50, 50, 50)
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pdf.Cell(0, 5, data.CustomerName)
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pdf.Ln(5)
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pdf.SetFont("Arial", "", 9)
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pdf.Cell(0, 4, data.CustomerAddress)
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pdf.Ln(4)
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if data.CustomerOrgNr != "" {
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pdf.Cell(0, 4, fmt.Sprintf("Org.nr: %s", data.CustomerOrgNr))
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pdf.Ln(4)
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}
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pdf.Ln(10)
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// Items table header
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pdf.SetFillColor(201, 106, 58)
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pdf.SetTextColor(255, 255, 255)
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pdf.SetFont("Arial", "B", 9)
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pdf.Cell(80, 8, "Beskrivning")
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pdf.Cell(25, 8, "Antal")
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pdf.Cell(25, 8, "Enhet")
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pdf.Cell(30, 8, "Pris")
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pdf.Cell(30, 8, "Belopp")
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pdf.Ln(8)
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// Items
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pdf.SetTextColor(50, 50, 50)
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pdf.SetFont("Arial", "", 9)
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for i, item := range data.Items {
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if i%2 == 0 {
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pdf.SetFillColor(250, 248, 245)
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pdf.Rect(10, pdf.GetY(), 190, 6, "F")
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}
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pdf.Cell(80, 6, item.Description)
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pdf.Cell(25, 6, fmt.Sprintf("%.2f", item.Quantity))
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pdf.Cell(25, 6, item.Unit)
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pdf.Cell(30, 6, fmt.Sprintf("%.2f", item.UnitPrice))
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pdf.Cell(30, 6, fmt.Sprintf("%.2f", item.Total))
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pdf.Ln(6)
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}
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pdf.Ln(5)
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// Totals
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pdf.SetX(120)
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pdf.SetFont("Arial", "", 9)
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pdf.Cell(40, 5, "Delsumma:")
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pdf.Cell(30, 5, fmt.Sprintf("%.2f %s", data.Subtotal, data.Currency))
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pdf.Ln(5)
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pdf.SetX(120)
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pdf.Cell(40, 5, fmt.Sprintf("Moms (%.0f%%):", data.VATRate*100))
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pdf.Cell(30, 5, fmt.Sprintf("%.2f %s", data.VATAmount, data.Currency))
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pdf.Ln(5)
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pdf.SetX(120)
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pdf.SetFont("Arial", "B", 11)
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pdf.SetTextColor(201, 106, 58)
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totalLabel := "ATT BETALA:"
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if data.DocType == QuoteDoc {
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totalLabel = "TOTALT:"
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}
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pdf.Cell(40, 7, totalLabel)
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pdf.Cell(30, 7, fmt.Sprintf("%.2f %s", data.Total, data.Currency))
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pdf.Ln(10)
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// Notes
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if data.Notes != "" {
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pdf.SetFont("Arial", "I", 8)
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pdf.SetTextColor(100, 100, 100)
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pdf.MultiCell(0, 4, data.Notes, "", "", false)
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}
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// Footer
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pdf.SetY(-20)
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pdf.SetFont("Arial", "", 8)
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pdf.SetTextColor(150, 150, 150)
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pdf.Cell(0, 4, fmt.Sprintf("%s | %s %s | Sida %d", data.CompanyName, data.DocType, data.DocNumber, pdf.PageNo()))
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var buf bytes.Buffer
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if err := pdf.Output(&buf); err != nil {
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return nil, err
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}
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return buf.Bytes(), nil
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}
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func docInfoLabel(dt DocType) string {
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if dt == QuoteDoc {
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return "OFFERTINFORMATION"
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}
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return "FAKTURAINFORMATION"
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}
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func docNumberLabel(dt DocType) string {
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if dt == QuoteDoc {
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return "Offertnr"
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}
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return "Fakturanr"
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}
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