Add article generation and pricelist categories

internal/handlers/export.go

@@ -3,6 +3,7 @@ package handlers
 import (
 	"fmt"
 	"net/http"
+	"strings"
 	"time"
 
 	"git.mchus.pro/mchus/quoteforge/internal/middleware"
@@ -35,6 +36,7 @@ type ExportRequest struct {
 	Name         string `json:"name" binding:"required"`
 	ProjectName  string `json:"project_name"`
 	ProjectUUID  string `json:"project_uuid"`
+	Article      string `json:"article"`
 	Items        []struct {
 		LotName   string  `json:"lot_name" binding:"required"`
 		Quantity  int     `json:"quantity" binding:"required,min=1"`
@@ -73,7 +75,11 @@ func (h *ExportHandler) ExportCSV(c *gin.Context) {
 
 	// Set headers before streaming
 	exportDate := data.CreatedAt
-	filename := fmt.Sprintf("%s (%s) %s BOM.csv", exportDate.Format("2006-01-02"), projectName, req.Name)
+	articleSegment := sanitizeFilenameSegment(req.Article)
+	if articleSegment == "" {
+		articleSegment = "BOM"
+	}
+	filename := fmt.Sprintf("%s (%s) %s %s.csv", exportDate.Format("2006-01-02"), projectName, req.Name, articleSegment)
 	c.Header("Content-Type", "text/csv; charset=utf-8")
 	c.Header("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"", filename))
 
@@ -116,6 +122,7 @@ func (h *ExportHandler) buildExportData(req *ExportRequest) *services.ExportData
 
 	return &services.ExportData{
 		Name:      req.Name,
+		Article:   req.Article,
 		Items:     items,
 		Total:     total,
 		Notes:     req.Notes,
@@ -123,6 +130,24 @@ func (h *ExportHandler) buildExportData(req *ExportRequest) *services.ExportData
 	}
 }
 
+func sanitizeFilenameSegment(value string) string {
+	if strings.TrimSpace(value) == "" {
+		return ""
+	}
+	replacer := strings.NewReplacer(
+		"/", "_",
+		"\\", "_",
+		":", "_",
+		"*", "_",
+		"?", "_",
+		"\"", "_",
+		"<", "_",
+		">", "_",
+		"|", "_",
+	)
+	return strings.TrimSpace(replacer.Replace(value))
+}
+
 func (h *ExportHandler) ExportConfigCSV(c *gin.Context) {
 	username := middleware.GetUsername(c)
 	uuid := c.Param("uuid")