From 06af84204a8c539c4f6ae9236f88384e1b66d0c4 Mon Sep 17 00:00:00 2001
From: M_Kececi <you@example.com>
Date: Tue, 17 Mar 2026 11:23:20 +0300
Subject: [PATCH] Merge remote-tracking branch 'origin/master'

---
 svc/routes/customer_balance_pdf.go | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/svc/routes/customer_balance_pdf.go b/svc/routes/customer_balance_pdf.go
index 3d973da..721317d 100644
--- a/svc/routes/customer_balance_pdf.go
+++ b/svc/routes/customer_balance_pdf.go
@@ -311,6 +311,9 @@ func drawCustomerBalancePDF(
 		y := pdf.GetY()
 		x := marginL
 		for i, c := range summaryCols {
+			if i >= len(summaryW) {
+				break
+			}
 			pdf.Rect(x, y, summaryW[i], 7, "DF")
 			pdf.SetXY(x+1, y+1.2)
 			pdf.CellFormat(summaryW[i]-2, 4.6, c, "", 0, "C", false, 0, "")
@@ -326,6 +329,9 @@ func drawCustomerBalancePDF(
 		y := pdf.GetY()
 		x := marginL
 		for i, c := range detailCols {
+			if i >= len(detailW) {
+				break
+			}
 			pdf.Rect(x, y, detailW[i], 6, "DF")
 			pdf.SetXY(x+1, y+1)
 			pdf.CellFormat(detailW[i]-2, 4, c, "", 0, "C", false, 0, "")
@@ -569,7 +575,7 @@ func calcPDFRowHeight(pdf *gofpdf.Fpdf, row []string, widths []float64, wrapIdx
 		if i >= len(widths) || widths[i] <= 2 {
 			continue
 		}
-		lines := pdf.SplitLines([]byte(strings.TrimSpace(v)), widths[i]-2)
+		lines := safeSplitLinesPDF(pdf, strings.TrimSpace(v), widths[i]-2)
 		if len(lines) > maxLines {
 			maxLines = len(lines)
 		}
@@ -586,7 +592,7 @@ func drawPDFCellWrapped(pdf *gofpdf.Fpdf, value string, x, y, w, h float64, alig
 		return
 	}
 	text := strings.TrimSpace(value)
-	lines := pdf.SplitLines([]byte(text), w-2)
+	lines := safeSplitLinesPDF(pdf, text, w-2)
 	if len(lines) == 0 {
 		lines = [][]byte{[]byte("")}
 	}
@@ -603,6 +609,19 @@ func drawPDFCellWrapped(pdf *gofpdf.Fpdf, value string, x, y, w, h float64, alig
 	}
 }
 
+func safeSplitLinesPDF(pdf *gofpdf.Fpdf, text string, width float64) (lines [][]byte) {
+	if width <= 0 {
+		width = 1
+	}
+	defer func() {
+		if recover() != nil {
+			lines = [][]byte{[]byte(text)}
+		}
+	}()
+	lines = pdf.SplitLines([]byte(text), width)
+	return lines
+}
+
 func formatCurrencyMapPDF(m map[string]float64) string {
 	if len(m) == 0 {
 		return "-"