Merge remote-tracking branch 'origin/master'

svc/routes/customer_balance_pdf.go

@@ -80,7 +80,7 @@ func ExportCustomerBalancePDFHandler(_ *sql.DB) http.HandlerFunc {
 			return
 		}
 
-		drawCustomerBalancePDF(
+		if err := safeDrawCustomerBalancePDF(
 			pdf,
 			selectedDate,
 			params.CariSearch,
@@ -89,7 +89,16 @@ func ExportCustomerBalancePDFHandler(_ *sql.DB) http.HandlerFunc {
 			false,
 			summaries,
 			detailsByMaster,
-		)
+		); err != nil {
+			pdf = gofpdf.New("L", "mm", "A4", "")
+			pdf.SetMargins(8, 8, 8)
+			pdf.SetAutoPageBreak(true, 12)
+			if ferr := registerDejavuFonts(pdf, "dejavu"); ferr != nil {
+				http.Error(w, "pdf font error: "+ferr.Error(), http.StatusInternalServerError)
+				return
+			}
+			drawCustomerBalancePDFFallback(pdf, selectedDate, params.CariSearch, "Cari Bakiye Listesi", summaries, false)
+		}
 
 		if err := pdf.Error(); err != nil {
 			http.Error(w, "pdf render error: "+err.Error(), http.StatusInternalServerError)
@@ -552,6 +561,104 @@ func drawCustomerBalancePDF(
 	}
 }
 
+func safeDrawCustomerBalancePDF(
+	pdf *gofpdf.Fpdf,
+	selectedDate string,
+	searchText string,
+	detailed bool,
+	reportTitle string,
+	includeVadeColumns bool,
+	summaries []balanceSummaryPDF,
+	detailsByMaster map[string][]models.CustomerBalanceListRow,
+) (err error) {
+	defer func() {
+		if rec := recover(); rec != nil {
+			err = fmt.Errorf("draw panic: %v", rec)
+		}
+	}()
+	drawCustomerBalancePDF(pdf, selectedDate, searchText, detailed, reportTitle, includeVadeColumns, summaries, detailsByMaster)
+	return nil
+}
+
+func drawCustomerBalancePDFFallback(
+	pdf *gofpdf.Fpdf,
+	selectedDate string,
+	searchText string,
+	reportTitle string,
+	summaries []balanceSummaryPDF,
+	includeVadeColumns bool,
+) {
+	pdf.AddPage()
+	pdf.SetFont("dejavu", "B", 13)
+	pdf.SetTextColor(149, 113, 22)
+	pdf.CellFormat(0, 8, reportTitle+" (Fallback)", "", 1, "L", false, 0, "")
+
+	pdf.SetFont("dejavu", "", 9)
+	pdf.SetTextColor(20, 20, 20)
+	pdf.CellFormat(0, 5, "Tarih: "+formatDateTR(selectedDate), "", 1, "L", false, 0, "")
+	if strings.TrimSpace(searchText) != "" {
+		pdf.CellFormat(0, 5, "Arama: "+searchText, "", 1, "L", false, 0, "")
+	}
+	pdf.Ln(1)
+
+	header := []string{"Ana Cari Kod", "Ana Cari Detay", "1_2 USD", "1_2 TRY", "1_3 USD", "1_3 TRY"}
+	widths := normalizeWidths([]float64{24, 78, 18, 18, 18, 18}, 281)
+	if includeVadeColumns {
+		header = append(header, "Vade Gun", "Belge Tarihi Gun")
+		widths = normalizeWidths([]float64{24, 70, 17, 17, 17, 17, 12, 17}, 281)
+	}
+
+	pdf.SetFont("dejavu", "B", 8)
+	pdf.SetFillColor(149, 113, 22)
+	pdf.SetTextColor(255, 255, 255)
+	x, y := 8.0, pdf.GetY()
+	for i, h := range header {
+		pdf.Rect(x, y, widths[i], 6, "DF")
+		pdf.SetXY(x+1, y+1)
+		pdf.CellFormat(widths[i]-2, 4, h, "", 0, "C", false, 0, "")
+		x += widths[i]
+	}
+	pdf.SetY(y + 6)
+
+	pdf.SetFont("dejavu", "", 7.4)
+	pdf.SetTextColor(20, 20, 20)
+	for _, s := range summaries {
+		row := []string{
+			s.AnaCariKodu,
+			s.AnaCariAdi,
+			formatMoneyPDF(s.USDBakiye12),
+			formatMoneyPDF(s.TLBakiye12),
+			formatMoneyPDF(s.USDBakiye13),
+			formatMoneyPDF(s.TLBakiye13),
+		}
+		if includeVadeColumns {
+			row = append(row, formatMoneyPDF(s.VadeGun), formatMoneyPDF(s.VadeBelge))
+		}
+
+		if pdf.GetY()+6 > 198 {
+			pdf.AddPage()
+			pdf.SetY(8)
+		}
+
+		x = 8
+		y = pdf.GetY()
+		for i, v := range row {
+			pdf.Rect(x, y, widths[i], 6, "")
+			align := "L"
+			if i >= 2 {
+				align = "R"
+			}
+			if includeVadeColumns && (i == len(row)-1 || i == len(row)-2) {
+				align = "C"
+			}
+			pdf.SetXY(x+1, y+1)
+			pdf.CellFormat(widths[i]-2, 4, v, "", 0, align, false, 0, "")
+			x += widths[i]
+		}
+		pdf.SetY(y + 6)
+	}
+}
+
 func formatDateTR(v string) string {
 	s := strings.TrimSpace(v)
 	if s == "" {