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Ruidy
e8bfcf26f3
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Redesigned the invoice PDF with a more modern, modular layout. Updated colors, spacing, and section organization for better readability and visual appeal. Added a summary block, improved table formatting, and refined header/footer presentation. Also updated dependencies in go.mod and go.sum to support new features.
447 lines
16 KiB
Go
447 lines
16 KiB
Go
package pdf
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import (
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"bytes"
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"fmt"
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"log"
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"os"
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"text/template"
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"time"
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"github.com/jung-kurt/gofpdf/v2"
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"github.com/rjNemo/rentease/assets"
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"github.com/rjNemo/rentease/internal/service/booking"
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)
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type HTMLPdfClient struct{}
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const (
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invoiceMarginX = 10.0
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invoiceContentWidth = 190.0
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invoiceHeaderHeight = 32.0
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invoiceTableRowH = 9.0
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invoiceSummaryLineH = 9.0
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invoiceNotesPadding = 4.0
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invoiceColGap = 6.0
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invoiceColWidth = (invoiceContentWidth - invoiceColGap) / 2.0
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)
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type rgbColor struct {
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r int
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g int
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b int
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}
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var (
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invoiceTeal = rgbColor{0, 123, 143}
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invoiceTealDark = rgbColor{0, 98, 114}
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invoiceLightGray = rgbColor{248, 249, 250}
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invoiceMidGray = rgbColor{222, 226, 230}
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invoiceTextGray = rgbColor{73, 80, 87}
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invoiceTextMuted = rgbColor{108, 117, 125}
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invoiceNoteBg = rgbColor{237, 247, 249}
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invoiceWhite = rgbColor{255, 255, 255}
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)
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func NewPdfClient() (*HTMLPdfClient, error) {
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return &HTMLPdfClient{}, nil
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}
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func (pc *HTMLPdfClient) BuildInvoice(data booking.Invoice) (*booking.GeneratedFile, error) {
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pdf := gofpdf.New("P", "mm", "A4", "")
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pdf.SetMargins(invoiceMarginX, 10, invoiceMarginX)
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pdf.SetAutoPageBreak(true, 14)
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pdf.AddPage()
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tr := pdf.UnicodeTranslatorFromDescriptor("")
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drawInvoiceHeader(pdf, tr, data)
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drawInvoiceDetails(pdf, tr, data)
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drawInvoiceItemsTable(pdf, tr, data)
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drawInvoicePayments(pdf, tr, data)
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drawInvoiceSummary(pdf, tr, data)
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drawInvoiceNotes(pdf, tr, data)
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drawInvoiceFooter(pdf, tr, data)
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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, fmt.Errorf("error writing PDF file: %v", err)
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}
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return &booking.GeneratedFile{
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Name: fmt.Sprintf("%s.pdf", data.ID),
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ContentType: "application/pdf",
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Data: buf.Bytes(),
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}, nil
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}
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func (pc *HTMLPdfClient) BuildReport(report booking.ReportData, period string, month int, year int) (string, error) {
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tmpl, err := template.ParseFS(assets.Static, "assets/html/report.html")
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if err != nil {
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return "", fmt.Errorf("error parsing template: %v", err)
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}
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var buf bytes.Buffer
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if err := tmpl.Execute(&buf, report); err != nil {
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log.Printf("err: %+v\n", err)
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return "", fmt.Errorf("error executing template: %v", err)
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}
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outputPath := fmt.Sprintf("report-%s-%d-%d.html", period, month, year)
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if err := os.WriteFile(outputPath, buf.Bytes(), 0o644); err != nil {
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log.Printf("err: %+v\n", err)
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return "", fmt.Errorf("error writing HTML file: %v", err)
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}
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return outputPath, nil
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}
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func drawInvoiceHeader(pdf *gofpdf.Fpdf, tr func(string) string, data booking.Invoice) {
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topY := 10.0
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// Full-width teal banner
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pdf.SetFillColor(invoiceTeal.r, invoiceTeal.g, invoiceTeal.b)
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pdf.Rect(invoiceMarginX, topY, invoiceContentWidth, invoiceHeaderHeight, "F")
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// Subtle darker teal accent strip at very top
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pdf.SetFillColor(invoiceTealDark.r, invoiceTealDark.g, invoiceTealDark.b)
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pdf.Rect(invoiceMarginX, topY, invoiceContentWidth, 1.2, "F")
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// Logo in a white rounded rectangle
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if logo, err := assets.Static.ReadFile("assets/img/logo.png"); err == nil {
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info := pdf.RegisterImageOptionsReader(
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"invoice-logo",
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gofpdf.ImageOptions{ImageType: "PNG"},
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bytes.NewReader(logo),
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)
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if info != nil {
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logoX := invoiceMarginX + 5
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logoY := topY + 4
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logoSize := 24.0
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// white background circle behind logo
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pdf.SetFillColor(255, 255, 255)
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pdf.SetDrawColor(255, 255, 255)
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radius := logoSize/2 + 1.5
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pdf.Circle(logoX+logoSize/2, logoY+logoSize/2, radius, "F")
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pdf.ImageOptions("invoice-logo", logoX+1.5, logoY+1.5, logoSize-3, logoSize-3, false, gofpdf.ImageOptions{ImageType: "PNG"}, 0, "")
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}
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}
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// Host info on the right side of banner
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pdf.SetTextColor(255, 255, 255)
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rightBlockX := 100.0
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rightBlockW := invoiceMarginX + invoiceContentWidth - rightBlockX - 4
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pdf.SetXY(rightBlockX, topY+5)
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pdf.SetFont("Helvetica", "B", 13)
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pdf.CellFormat(rightBlockW, 5.5, tr(data.Host.Name), "", 1, "R", false, 0, "")
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pdf.SetFont("Helvetica", "", 8.5)
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hostLines := []string{
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data.Host.Address,
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fmt.Sprintf("%s %s", data.Host.ZipCode, data.Host.City),
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fmt.Sprintf("Tel : %s", data.Host.PhoneNumber),
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fmt.Sprintf("Mail : %s", data.Host.Email),
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}
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for _, line := range hostLines {
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pdf.SetX(rightBlockX)
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pdf.CellFormat(rightBlockW, 4.2, tr(line), "", 1, "R", false, 0, "")
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}
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// Invoice number badge below banner
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pdf.Ln(5)
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badgeY := pdf.GetY()
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pdf.SetFont("Helvetica", "", 9)
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pdf.SetTextColor(invoiceTextMuted.r, invoiceTextMuted.g, invoiceTextMuted.b)
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pdf.SetX(invoiceMarginX)
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pdf.CellFormat(80, 6, tr("FACTURE"), "", 0, "L", false, 0, "")
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pdf.SetFont("Helvetica", "B", 14)
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pdf.SetTextColor(invoiceTeal.r, invoiceTeal.g, invoiceTeal.b)
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pdf.CellFormat(invoiceContentWidth-80, 6, tr(data.ID), "", 1, "R", false, 0, "")
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pdf.SetDrawColor(invoiceTeal.r, invoiceTeal.g, invoiceTeal.b)
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pdf.SetLineWidth(0.4)
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pdf.Line(invoiceMarginX, badgeY+8, invoiceMarginX+invoiceContentWidth, badgeY+8)
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pdf.SetLineWidth(0.2)
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pdf.SetY(badgeY + 12)
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}
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func drawInvoiceDetails(pdf *gofpdf.Fpdf, tr func(string) string, data booking.Invoice) {
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startY := pdf.GetY()
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leftX := invoiceMarginX
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rightX := invoiceMarginX + invoiceColWidth + invoiceColGap
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cardPad := 5.0
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cardH := 36.0
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// Left card: Customer info - light gray background
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pdf.SetFillColor(invoiceLightGray.r, invoiceLightGray.g, invoiceLightGray.b)
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pdf.RoundedRect(leftX, startY, invoiceColWidth, cardH, 2, "1234", "F")
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// Section label
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pdf.SetXY(leftX+cardPad, startY+cardPad)
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pdf.SetFont("Helvetica", "", 7.5)
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pdf.SetTextColor(invoiceTextMuted.r, invoiceTextMuted.g, invoiceTextMuted.b)
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pdf.CellFormat(invoiceColWidth-cardPad*2, 4, tr("CLIENT"), "", 1, "L", false, 0, "")
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// Customer name
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pdf.SetX(leftX + cardPad)
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pdf.SetFont("Helvetica", "B", 12)
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pdf.SetTextColor(invoiceTextGray.r, invoiceTextGray.g, invoiceTextGray.b)
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pdf.CellFormat(invoiceColWidth-cardPad*2, 7, tr(data.Name), "", 1, "L", false, 0, "")
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// Customer details
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detailLineH := 5.5
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writeLeftDetail := func(label, value string) {
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pdf.SetX(leftX + cardPad)
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pdf.SetFont("Helvetica", "", 8.5)
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pdf.SetTextColor(invoiceTextMuted.r, invoiceTextMuted.g, invoiceTextMuted.b)
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pdf.CellFormat(28, detailLineH, tr(label), "", 0, "L", false, 0, "")
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pdf.SetFont("Helvetica", "", 9)
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pdf.SetTextColor(invoiceTextGray.r, invoiceTextGray.g, invoiceTextGray.b)
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pdf.CellFormat(invoiceColWidth-cardPad*2-28, detailLineH, tr(value), "", 1, "L", false, 0, "")
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}
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writeLeftDetail("Tel", emptyFallback(data.PhoneNumber))
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writeLeftDetail("Clients", fmt.Sprintf("%d", data.CustomersNumber))
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writeLeftDetail("Plateforme", data.Platform)
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// Right card: Booking info - light gray background
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pdf.SetFillColor(invoiceLightGray.r, invoiceLightGray.g, invoiceLightGray.b)
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pdf.RoundedRect(rightX, startY, invoiceColWidth, cardH, 2, "1234", "F")
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pdf.SetXY(rightX+cardPad, startY+cardPad)
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pdf.SetFont("Helvetica", "", 7.5)
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pdf.SetTextColor(invoiceTextMuted.r, invoiceTextMuted.g, invoiceTextMuted.b)
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pdf.CellFormat(invoiceColWidth-cardPad*2, 4, tr("SÉJOUR"), "", 1, "L", false, 0, "")
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writeRightDetail := func(label, value string, bold bool) {
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pdf.SetX(rightX + cardPad)
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pdf.SetFont("Helvetica", "", 8.5)
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pdf.SetTextColor(invoiceTextMuted.r, invoiceTextMuted.g, invoiceTextMuted.b)
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pdf.CellFormat(28, detailLineH, tr(label), "", 0, "L", false, 0, "")
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style := ""
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if bold {
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style = "B"
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}
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pdf.SetFont("Helvetica", style, 9.5)
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pdf.SetTextColor(invoiceTextGray.r, invoiceTextGray.g, invoiceTextGray.b)
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pdf.CellFormat(invoiceColWidth-cardPad*2-28, detailLineH, tr(value), "", 1, "L", false, 0, "")
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}
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// Date range as main heading
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pdf.SetX(rightX + cardPad)
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pdf.SetFont("Helvetica", "B", 12)
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pdf.SetTextColor(invoiceTextGray.r, invoiceTextGray.g, invoiceTextGray.b)
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pdf.CellFormat(invoiceColWidth-cardPad*2, 7, tr(fmt.Sprintf("%s — %s", data.From, data.To)), "", 1, "L", false, 0, "")
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writeRightDetail("Nuits", nightsCount(data.From, data.To), false)
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writeRightDetail("Montant", euroAmount(data.Total), true)
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pdf.SetY(startY + cardH + 8)
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}
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func drawInvoiceItemsTable(pdf *gofpdf.Fpdf, tr func(string) string, data booking.Invoice) {
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// Section title
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pdf.SetFont("Helvetica", "B", 11)
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pdf.SetTextColor(invoiceTeal.r, invoiceTeal.g, invoiceTeal.b)
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pdf.CellFormat(0, 7, tr("Prestations"), "", 1, "L", false, 0, "")
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pdf.Ln(1)
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widths := []float64{72, 30, 40, 48}
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headers := []string{"Objet", "Quantité", "Prix (€)", "Total (€)"}
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writeTableHeader(pdf, tr, widths, headers)
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pdf.SetFont("Helvetica", "", 10)
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for i, line := range data.Lines {
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fill := i%2 == 0
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if fill {
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pdf.SetFillColor(invoiceLightGray.r, invoiceLightGray.g, invoiceLightGray.b)
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}
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pdf.SetTextColor(invoiceTextGray.r, invoiceTextGray.g, invoiceTextGray.b)
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pdf.CellFormat(widths[0], invoiceTableRowH, " "+tr(line.Name), "", 0, "", fill, 0, "")
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pdf.CellFormat(widths[1], invoiceTableRowH, fmt.Sprintf("%d", line.Quantity), "", 0, "C", fill, 0, "")
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pdf.CellFormat(widths[2], invoiceTableRowH, line.Price, "", 0, "R", fill, 0, "")
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pdf.SetTextColor(invoiceTextGray.r, invoiceTextGray.g, invoiceTextGray.b)
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pdf.SetFont("Helvetica", "B", 10)
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pdf.CellFormat(widths[3], invoiceTableRowH, line.Total+" ", "", 1, "R", fill, 0, "")
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pdf.SetFont("Helvetica", "", 10)
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// Subtle separator line
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lineY := pdf.GetY()
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pdf.SetDrawColor(invoiceMidGray.r, invoiceMidGray.g, invoiceMidGray.b)
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pdf.Line(invoiceMarginX, lineY, invoiceMarginX+invoiceContentWidth, lineY)
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}
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pdf.Ln(8)
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}
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func drawInvoicePayments(pdf *gofpdf.Fpdf, tr func(string) string, data booking.Invoice) {
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pdf.SetFont("Helvetica", "B", 11)
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pdf.SetTextColor(invoiceTeal.r, invoiceTeal.g, invoiceTeal.b)
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pdf.CellFormat(0, 7, tr("Historique des Paiements"), "", 1, "L", false, 0, "")
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pdf.Ln(1)
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widths := []float64{54, 88, 48}
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headers := []string{"Date", "Mode de Paiement", "Montant (€)"}
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writeTableHeader(pdf, tr, widths, headers)
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pdf.SetFont("Helvetica", "", 10)
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if len(data.Payments) == 0 {
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pdf.SetFillColor(invoiceLightGray.r, invoiceLightGray.g, invoiceLightGray.b)
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pdf.SetTextColor(invoiceTextMuted.r, invoiceTextMuted.g, invoiceTextMuted.b)
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pdf.CellFormat(widths[0], invoiceTableRowH, " "+tr("-"), "", 0, "", true, 0, "")
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pdf.CellFormat(widths[1], invoiceTableRowH, tr("Aucun paiement enregistré"), "", 0, "", true, 0, "")
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pdf.CellFormat(widths[2], invoiceTableRowH, tr("0.00")+" ", "", 1, "R", true, 0, "")
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} else {
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for i, payment := range data.Payments {
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fill := i%2 == 0
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if fill {
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pdf.SetFillColor(invoiceLightGray.r, invoiceLightGray.g, invoiceLightGray.b)
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}
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pdf.SetTextColor(invoiceTextGray.r, invoiceTextGray.g, invoiceTextGray.b)
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pdf.CellFormat(widths[0], invoiceTableRowH, " "+tr(payment.Date), "", 0, "", fill, 0, "")
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pdf.CellFormat(widths[1], invoiceTableRowH, tr(payment.Method), "", 0, "", fill, 0, "")
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pdf.SetFont("Helvetica", "B", 10)
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pdf.CellFormat(widths[2], invoiceTableRowH, payment.Amount+" ", "", 1, "R", fill, 0, "")
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pdf.SetFont("Helvetica", "", 10)
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lineY := pdf.GetY()
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pdf.SetDrawColor(invoiceMidGray.r, invoiceMidGray.g, invoiceMidGray.b)
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pdf.Line(invoiceMarginX, lineY, invoiceMarginX+invoiceContentWidth, lineY)
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}
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}
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pdf.Ln(8)
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}
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func drawInvoiceSummary(pdf *gofpdf.Fpdf, tr func(string) string, data booking.Invoice) {
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// Right-aligned summary block
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summaryX := invoiceMarginX + invoiceContentWidth - 80
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summaryW := 80.0
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labels := []string{"Montant Total", "Montant Payé", "Solde Restant"}
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values := []string{euroAmount(data.Total), euroAmount(data.AmountPaid), euroAmount(data.BalanceDue)}
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for i := range labels {
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pdf.SetX(summaryX)
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pdf.SetFont("Helvetica", "", 9.5)
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pdf.SetTextColor(invoiceTextMuted.r, invoiceTextMuted.g, invoiceTextMuted.b)
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pdf.CellFormat(summaryW/2, invoiceSummaryLineH, tr(labels[i]), "", 0, "L", false, 0, "")
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pdf.SetFont("Helvetica", "B", 10)
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pdf.SetTextColor(invoiceTextGray.r, invoiceTextGray.g, invoiceTextGray.b)
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pdf.CellFormat(summaryW/2, invoiceSummaryLineH, tr(values[i]), "", 1, "R", false, 0, "")
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if i < len(labels)-1 {
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lineY := pdf.GetY()
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pdf.SetDrawColor(invoiceMidGray.r, invoiceMidGray.g, invoiceMidGray.b)
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pdf.Line(summaryX, lineY, summaryX+summaryW, lineY)
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}
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}
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// Highlight the balance due
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balanceY := pdf.GetY() - invoiceSummaryLineH
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pdf.SetFillColor(invoiceNoteBg.r, invoiceNoteBg.g, invoiceNoteBg.b)
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pdf.RoundedRect(summaryX-2, balanceY-0.5, summaryW+4, invoiceSummaryLineH+1, 1.5, "1234", "F")
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pdf.SetXY(summaryX, balanceY)
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pdf.SetFont("Helvetica", "B", 9.5)
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pdf.SetTextColor(invoiceTeal.r, invoiceTeal.g, invoiceTeal.b)
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pdf.CellFormat(summaryW/2, invoiceSummaryLineH, tr("Solde Restant"), "", 0, "L", false, 0, "")
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pdf.SetFont("Helvetica", "B", 11)
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pdf.CellFormat(summaryW/2, invoiceSummaryLineH, tr(euroAmount(data.BalanceDue)), "", 1, "R", false, 0, "")
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pdf.Ln(8)
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}
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func drawInvoiceNotes(pdf *gofpdf.Fpdf, tr func(string) string, _ booking.Invoice) {
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notes := "TVA non applicable, art. 293 B du CGI\nDispensé d'immatriculation au registre du commerce et des sociétés (RCS) et au répertoire des métiers.\nConditions de paiement : paiement à réception de facture. Aucun escompte consenti pour règlement anticipé ou désistement. Tout incident de paiement est passible d'intérêts de retard. Le montant des pénalités résulte de l'application aux sommes restant dues d'un taux d'intérêt légal en vigueur au moment de l'incident.\nIl sera demandé 15€ par jour par personne supplémentaire."
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pdf.SetFont("Helvetica", "", 7)
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lines := pdf.SplitLines([]byte(tr(notes)), invoiceContentWidth-(invoiceNotesPadding*2)-8)
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noteBoxHeight := float64(len(lines))*3.0 + invoiceNotesPadding*2 + 6
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if pdf.GetY()+noteBoxHeight+30 > 282 {
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pdf.AddPage()
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}
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y := pdf.GetY()
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pdf.SetFillColor(invoiceLightGray.r, invoiceLightGray.g, invoiceLightGray.b)
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pdf.RoundedRect(invoiceMarginX, y, invoiceContentWidth, noteBoxHeight, 2, "1234", "F")
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// Notes title
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pdf.SetXY(invoiceMarginX+invoiceNotesPadding, y+invoiceNotesPadding)
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pdf.SetFont("Helvetica", "B", 7.5)
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pdf.SetTextColor(invoiceTextMuted.r, invoiceTextMuted.g, invoiceTextMuted.b)
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pdf.CellFormat(invoiceContentWidth-(invoiceNotesPadding*2), 4, tr("MENTIONS LÉGALES"), "", 1, "L", false, 0, "")
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pdf.SetX(invoiceMarginX + invoiceNotesPadding)
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pdf.SetFont("Helvetica", "", 7)
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pdf.SetTextColor(invoiceTextMuted.r, invoiceTextMuted.g, invoiceTextMuted.b)
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pdf.MultiCell(invoiceContentWidth-(invoiceNotesPadding*2), 3.0, tr(notes), "", "L", false)
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pdf.SetY(y + noteBoxHeight + 6)
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}
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func drawInvoiceFooter(pdf *gofpdf.Fpdf, tr func(string) string, data booking.Invoice) {
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// Total banner at the bottom
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footerH := 14.0
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y := pdf.GetY()
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pdf.SetFillColor(invoiceTeal.r, invoiceTeal.g, invoiceTeal.b)
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pdf.RoundedRect(invoiceMarginX, y, invoiceContentWidth, footerH, 2, "1234", "F")
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pdf.SetXY(invoiceMarginX+6, y+2)
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pdf.SetFont("Helvetica", "", 9)
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|
pdf.SetTextColor(255, 255, 255)
|
|
pdf.CellFormat(60, 10, tr("TOTAL À PAYER"), "", 0, "L", false, 0, "")
|
|
|
|
pdf.SetFont("Helvetica", "B", 16)
|
|
pdf.CellFormat(invoiceContentWidth-72, 10, tr(euroAmount(data.Total)), "", 0, "R", false, 0, "")
|
|
}
|
|
|
|
func writeTableHeader(pdf *gofpdf.Fpdf, tr func(string) string, widths []float64, headers []string) {
|
|
pdf.SetFillColor(invoiceTeal.r, invoiceTeal.g, invoiceTeal.b)
|
|
pdf.SetTextColor(255, 255, 255)
|
|
pdf.SetFont("Helvetica", "B", 9)
|
|
alignments := []string{"L", "C", "R", "R"}
|
|
if len(widths) == 3 {
|
|
alignments = []string{"L", "L", "R"}
|
|
}
|
|
for i, header := range headers {
|
|
end := 0
|
|
if i == len(headers)-1 {
|
|
end = 1
|
|
}
|
|
pad := ""
|
|
if i == 0 {
|
|
pad = " "
|
|
}
|
|
pdf.CellFormat(widths[i], 8, pad+tr(header), "", end, alignments[i], true, 0, "")
|
|
}
|
|
}
|
|
|
|
func nightsCount(from, to string) string {
|
|
f, err1 := time.Parse("02/01/2006", from)
|
|
t, err2 := time.Parse("02/01/2006", to)
|
|
if err1 != nil || err2 != nil {
|
|
return "-"
|
|
}
|
|
days := int(t.Sub(f).Hours() / 24)
|
|
if days < 0 {
|
|
days = 0
|
|
}
|
|
return fmt.Sprintf("%d", days)
|
|
}
|
|
|
|
func euroAmount(value string) string {
|
|
return fmt.Sprintf("%s €", value)
|
|
}
|
|
|
|
func emptyFallback(value string) string {
|
|
if value == "" {
|
|
return "-"
|
|
}
|
|
return value
|
|
}
|